Our double ferrule fittings are designed, manufactured, and quality controlled

Fd-lok double ferrule fittings are designed, manufactured, and quality controlled to be totally "interchangeable" with the Fd-lok brand of double ferrule fittings.
Fd-lok  product provide a reliable, leak-proof connection in instrumentation and process tubing systems, The double ferrule design, with the staged sequential swaging action of the ferrules during make-up, Back ferrule make a grip on tube & front ferrule work as sealing on tube, compensates for the variation in tubing materials, hardness, and thickness of the tube wall to provide leak-tight connections in an extensive range of applications.
These Fd-lok double ferrule fittings are used in process control as well as hydraulic and pneumatic applications in industries like chemical, petrochemical, fertilizer, offshore, power plants, etc. We have Fluid Lok double ferrule fitting in standard and customized sizes and nominal bore sizes with variety of end connections. These tubing fittings are designed and developed as per the international quality standards.

37° flare tube fitting benefits

— Assembly performs extremely well even under severe vibration and thermal shocks
— Upon tightening, the sleeve ensures tube alignment with fitting axis, reduces mechanical strain on tube and compensates for vibration
— Fitting can be equally coupled to metric or fractional tubes
— Tube does not undergo distortion, remains constant and fluid pressure losses are negligible
— The system leak free integrity remains after disassembly and reassembly
— Individual replacement of any component
Hy-Lok’s flare fittings are engineered to save the user money and time. They are economically priced and provide excellent service as well as longevity. These pipe fittings are designed to meet all system requirements and safety standards. Providing exceptional results and quality service, these 37°flare tube fittings are favored by many industries and consistently exceed the user’s expectations.

High pressure pipe fittings are widely applied in almost all the industries

With the booming development of modern industry,high pressure pipe fittings are widely applied in almost all the industries as the connector for pipes,especially for mining industry,oil&gas industry,chemical machinery,shipbuilding industry. ect.Such fittings include:elbow,tee,cross,cap,half coupling,coupling,and so on. All these forged fittings must withstand high pressure,so we call them high pressure forged fittings.
Due to the corrosion resistance and rustless of stainless steel,so it is commonly adopted for manufacturing forged fittings. Main material specifications are SS304 and SS316. Although there are a number of forged fittings used in different specifications,to standardized them,we distinguish them from size 1/8" to 2". And according to their specific usage,there are divided into threaded fittings and socket weld fittings.

Fd-lok double ferrule fittings

Fd-lok double ferrule fittings, instrumentation tube fittings provide leak-proof and torque-free seals at all tubing connections. The fittings are designed to reduce the chance of hazardous and expensive leaks in instrumentation, process, pneumatic, hydraulic, gas, and other tubing systems. The fittings consist of the nut, the back ferrule, the front ferrule, and the body. When installed they provide a five-piece connection with the addition of the tubing providing a solid leak-free joint. The two ferrules are tightly swaged around the tube and the lack of initial strain on the tubing ensures no tubing wall damage. Leaks are prevented because there is an axial movement along the tube instead of a rotary motion creating the joint. This axial movement prevents torque from being transmitted from the fitting to the tubing. Resistant to temperature change, the fittings do not significantly reduce flow area and work with a variety of tube materials. In addition, the two-ferrule action supersedes variations in the wall thickness, hardness, and dimensional tolerance of the tubes, ultimately compensating for most variables that lead to failure with other fittings. Brennan double ferrule compression tube fittings can be remade several times and can withstand heavy impulse and vibration in both vacuum and pressure systems. Requiring no special tools for installation or torque for initial makeup and using only geometry until it is tightly fitted.

Fd-lok fittings meet the industry standards

Fd-lok fittings meet the strict requirements of SAE J514 and ISO 8434-2 industry standards for 37° flared tube fittings.
Its design is simple. It uses an easily produced flare at the tube end to seal and hold fluid under high pressure. The fitting consists of three pieces: the body, sleeve and nut. The tube is flared at a 37° angle (74° included angle) and held between the fitting nose (seat) and the sleeve (support) with the nut providing a very effective seal between the fitting nose and the tube flare.
The design of Fd-lok stainless tube fittings are very efficient. The fitting incorporates the smallest seal area of all fitting types. This seal area is only slightly larger than the fluid flow area. The small seal area results in a compact design, low assembly torque, and a relatively high-pressure capability.

High pressure pipe fittings are parts used to connect hoses, pipes, and tubes in hydraulic systems

High pressure pipe fittings are parts used to connect hoses, pipes, and tubes in hydraulic systems. Hydraulic equipment generally operates under high pressures and is often not a fixed system. Consequently, hydraulic fittings need to be strong, versatile, and reliable to operate safely and effectively in their respective applications. These fittings typically adhere to strict standards which dictate fitting construction, dimensions, and pressure ratings. It is important to distinguish what type of hydraulic equipment is being connected in the system to determine what fittings are appropriate. Stainless steel tube weld fittings are seamless precision pipes specially manufactured for hydraulics. The tubes have standard sizes for different pressure ranges, with standard diameters up to 100 mm. Tubes lengths are interconnected via flanges, welding nipples, flare connections, or by cut-rings. Direct joining of tubes by welding is not acceptable since the interior cannot be inspected.

FD-LOK provide a range of Tube Compression Fittings

We provide a range of Tube Compression Fittings, Hydraulic singe ferrule fittings, and other fittings designed and manufactured to the highest standards.
Our fittings are used in industries such as petrochemicals, chemicals, desalinization, chromatography, hydraulics ... anywhere high precision fittings are required to work at high pressure. Our product range includes Twin Ferrule Tube Compression Fittings in 316 stainless steel pipe fittings.  All materials are sourced from approved EU Mills, with full 31b certification. Double ferrule fittings and Aluminum Bronze Compression Fittings have been designed and developed to meet the demands for reliable fittings manufactured high precision standards. We offer a range of Imperial and Metric sizes for use in pneumatic, process, cryogenic, instrument and hydraulic control systems - serving the chemical, petro-chemical, pharmaceutical, food, beverages, on and off-shore Oil and Gas, and many other uses.

Fd-lok 37° flare fittings has a wide range of configuration

Fd-lok 37°flared tube fittings perform well in severe applications where vibration, high pressure, and thermal shock exist. The flare fitting sleeve insures tube alignment with the fitting body axis and minimizes mechanical strain on the tube. Fitting design allows for repeated disassembly and re-assembly with no need to replace any components. A wide range of configurations are available such as straight connectors, elbows, union, tees, and crosses as well as unique special adapters.  Metric tube fittings materials include brass, carbon steel, and stainless steel. In the fluid power industry, these fittings are used in a test-point and diagnostic setting. There are instances with a three-way coupling can offer a port inline of circuit that allows the user to connect diagnostic equipment or measuring device so pressure readings and system diagnostics can be performed.

Types of high pressure pipe fittings

Types of high pressure pipe fittings
Although there are a number of forged fittings used in different specifications,we distinguish them from size 1/8" to 2".And according to their specific usage,there are divided into threaded fittings and socket-weld fittings.  Advantages of high pressure fittings in drop forging process.  Drop forging could produce high pressure fittings in net shapes with less machining,so we could get fittings with good surface finish in a cost-effective way. Those high pressure tube fittings  after forging will have better mechanical properties than casting,as internal grain structure formed after forging.  Normally,Butt weld pipe fittings are large,so it will be economic for large production runs.

Double ferrule fittings provide metal-to metal seal connections

Double ferrule fittings provide metal-to metal seal connections, none-elastomeric seals for leak-free connections.  Fd-lok double ferrule fittings are widely used in industrial fields. Metal Gasket Face Seal Fitting Size : 1/8" to 1" for fractional tube fittings and 6mm to 18mm for metric tube fitting Fd-lok fittings materials include ss 316. 316L，316L VAR. Fd-lok special treated back ferrule is to provide secure.Silver coated threads to reduce galling. Leak-proof joints capable of satisfying high pressure vacuum and vibration application.

The properties of the tube fittings and advantages

Fd-lok 37°flared tube fittings are the requirements of  offer the industry's broadest offering . The design has a small metal to metal seal area which results in a compact design, low assembly torque, high temperature and high pressure capability.
Markets:
• Construction
• Military Ground Systems
• Aerial Lift
• Material Handling
• Engine Transmission
Features/Benefits:
• Easily adaptable to inch tube, metric tube fittings and hose giving it worldwide acceptance.
• Stainless steel nut threads are silver-plated to minimize the friction with the body threads.
• The size range from 1/8” to2” and 3mm to 50mm

The development of high pressure pipe fittings

With the booming development of modern industry,high pressure pipe fittings are widely applied in almost all the industries as the connector for pipes,especially for mining industry,oil&gas industry,chemical machinery,shipbuilding industry,ect. Such fittings include:elbow(45°&90°),tee,cross,cap,half coupling,coupling,and so on. All these forged fittings must withstand high pressure,so we call them high pressure forged fittings. Materials:Due to the corrosion resistance and rustless of stainless steel,so it is commonly adopted for butt weld pipe fittings.

The design of the double ferrule tube fittings

Fd-lok double ferrule fittings are designed, manufactured, and quality controlled to be totally "interchangeable" brand of tube fittings. Double ferrule tube fittings product provide a reliable, leak-proof connection in instrumentation and process tubing systems, The double ferrule design, with the staged sequential swaging action of the ferrules during make-up, Back ferrule make a grip on tube & front ferrule work as sealing on tube, compensates for the variation in tubing materials, hardness, and thickness of the tube wall to provide leak-tight connections in an extensive range of applications.

Flared tube fittings help to operators

37°flared tube fittings are used with metal tubing and forms a seal is between the surface of the fitting nose  and the flared tubing.   The sleeve is used to evenly distribute the force of the flare nut to the flared end of the tube.  They seal at the bottom of the port, without complex techniques, which significantly reduces required torque and enables many more connects and disconnects.  Stainless steel tube fittings have high tensile strength, the center unit in the process of restructuring, is of great help to operators.

FD-LOK high pressure pipe fittings

FD-LOK high pressure pipe fittings is higher compression capacity pipe fittings. It has good mechanical properties and corrosion resistance. All exposed threads protected with plastic caps. High Pressure components use a coned-and-threaded connection which accommodates the high temperatures and pressures common in these applications. High Pressure valves are available in various tubing sizes and with body designs to satisfy widely varied requirements. O ring face seal fittings are equipped with the leak proof design that won't leak like regular pipe unions. Has a leaktight It is equipped with the leak proof design. Suitable for hot oil, steam, and other process fluids in high-pressure/high-temperature manifold applications.

Instrument needle valve function is turned on and off the pipeline path

Instrument needle valve function is turned on and off the pipeline path. Good sealing needle valve, needle valve long service life, even after the needle valve sealing surface damage, needle valves only need to replace wearing parts, needle valves can continue to use. Needle valve should be installed so that the flow is consistent with the direction of the arrow on the valve body medium. Needle valves are often used with pressure transmitters, Trunnion ball valves flow meters and other ancillary equipment. Stainless steel needle valve is used to adjust the carrier gas flow rate, and some instruments use it to control the flow of gas and air. Adjustment handle on a connection in a straight shaft, which stem in the lower end of the shaft that was pointed cone valve needle 5, by changing the relative position of the valve needle valve to control the flow. When adjusting the handle rotated in a counterclockwise direction,Instrument needle valve the gap increases with the valve needle valve, gas resistance decreases, thus increasing the outflow from the needle valve gas flow. When adjusting the handle is turned clockwise, the valve needle valve seal will hold him down, the needle valve is closed. Embed a fluorine rubber gasket groove in the middle of the stem. I.e., the seal ring 4, and its surface is coated with silicone vacuum grease, the stem moves when the seal ring is always in close contact with the inner wall of the valve body, the valve body to maintain a sealed state when the needle valve is not working, the needle valve should be full (this point and the regulator valve opposite) to prevent the valve needle stuck in the valve inlet seal also prevents the spring prolonged pressure and failure.

FD-LOK manufacturing specializes in producing high pressure pipe fittings

FD-LOK manufacturing specializes in producing high pressure pipe fittings and flowline products. FD-LOK's product list includes 1½ inch and above high pressure flow line components including hammer unions, threaded and integral cross, tee, ell fittings.
All FD-LOK manufactured high pressure pipe fittings are made from certified materials and are identified at the time of manufacture. FD-LOK manufacturing provides traceability of materials used during and after the manufacturing process. FD-LOK Manufacturing produces parts that are interchangeable with other major manufacturers.
High pressure pipes and fittings satisfy standard pipes and fittings for Plumbing applications that demand high operating pressure, high levels of toughness, chemical and resistance along with cost effective.

High Pressure Fittings, Tubing and Nipples Feature

High Pressure Fittings, Tubing Fittings and Nipples Feature:
Coned-and-Threaded Connection Design
Available sizes are 1/4, 5/16, 3/8, 9/16, and 1”.
Fittings and tubing manufactured from 316 cold worked or high strength stainless steel fitting.
Operating Temperatures from -423°F (-252°C) to 1200°F (649°C).
Anti-vibration connection components available.
Ultra-high pressure components.
Autofrettaged tubing.
High pressure high cycle tubing.
The high and ulta-high pressure series uses Autoclave’s high pressure connector. This coned-and- threaded connection provides dependable performance in gas or liquid service.

FD-LOK manufacturing specializes in producing high pressure pipe fittings

FD-LOK manufacturing specializes in producing high pressure pipe fittings and flowline products for the industry and the government. FD-LOK's product list includes 1½ inch and above high pressure flow line components including hammer unions, stainless steel threaded fittings and integral cross, tee fittings.
All FD-LOK manufactured high pressure pipe fittings are made from certified materials and are identified at the time of manufacture. FD-LOK provides traceability of materials used during and after the manufacturing process. FD-LOK produces parts that are interchangeable with other major manufacturers.

FD-LOK providing innovative fluid system control products

FD-LOK providing innovative fluid system control products--high pressure pipe fittings  from the most prominent manufacturers in the industry, it is a leading supplier of high pressure fittings and ball valves. To meet our customer's expectations, we're pleased to offer valve and fitting products by FD-LOK. Our thread fittings will work under the most demanding applications, capable of reaching pressures up to 60,000 psi. We sell a complete range of fittings in elbow, tee, and cross configurations supported by an array of connection sizes. Available from 1/8" to 2" sizes, our fittings are durable for constant disassembly and retightening. We also stock a full line of high pressure pipe fittings. Our high pressure valve line currently includes needle valves, ball valves and so on.

FD-LOK pipe fittings contain many thread types

FD-LOK pipe fittings contain many thread types including NPT, BSPP, BSPT, SAE UN/UNF, and Metric.Material available stainless steel, Monel 400, Inconel 625, etc.
metric pipe fittings are used widely in many industries. It includes nipples, reducing bushings, hex couplings, Adapters, Elbows, Tees, Crosses etc. stainless steel pipe fittings can be used to the industrials which are High pressure pipe fittings.
Feature:
1. The Size range is from 1/8" to 2";
2. The hardened threads with smooth surface finishing avoid galling and help to extend the fitting service life;
3. Radius junction design with elbows provides smooth flow path.

FD-LOK specializes in producing high pressure pipe fittings

FD-LOK Manufacturing specializes in producing high pressure pipe fittings and flowline products for the upstream oil industry. FD-LOK's product list includes 1½ inch and above high pressure flow line components including threaded and integral cross, tee, fittings. We make high pressure pipe fittings, 37° flared tube fittings, double ferrule fittings.
All manufactured high pressure pipe fittings are made from certified materials and are identified at the time of manufacture. FD-LOK manufacturing provides traceability of materials used during and after the manufacturing process. FD-LOK Manufacturing produces parts that are interchangeable with other major manufacturers.

FD-LOK High Pressure pipes fittings are widely used

High pressure pipe fittings satisfy the increasing demand for American and European standard pipes and fittings for Plumbing applications that demand high operating pressure, high levels of toughness, chemical and resistance along with cost effective.
FD-LOK High Pressure pipes fittings are widely used in:
Distribution of cold water under pressure.
Air conditioning drain systems.
Piping networks for swimming pools facilities & rainwater utilization.
Cold fluids circulation in industries.
Transport of chemicals and corrosive fluids in industries.

High Pressure components use a coned-and-threaded connection

High Pressure needle valves, fittings, line filters, check valves, safety heads, rupture discs, anti-vibration gland assemblies, tubing and nipples are engineered to the highest standards of repeatable quality.
High Pressure components use a coned-and-threaded connection which accommodates the high temperatures and pressures common in these applications. High Pressure valves are available in various tubing sizes and with body designs to satisfy widely varied requirements. A line of fittings is available to facilitate adapting to Taper Seal, Medium Pressure, or other High Pressure threaded pipe systems. Stainless steel is recommended for marine applications, chemical processing and other harsh operating conditions.

High Pressure Equipment Company

High Pressure Equipment Company has developed a line of High Pressure products to assure safe and easy plumbing. These needle valves, fittings, line filters, check valves, safety heads, rupture discs, anti-vibration gland assemblies, tubing and nipples are engineered to the highest standards of repeatable quality. The reliable performance of these products has made one of the world’s leading suppliers of elevated pressure components.
High Pressure components use a coned-and-threaded connection which accommodates the high temperatures and pressures common in these applications. High Pressure valves are available in various tubing sizes and with body designs to satisfy widely varied requirements. A line of fittings is available to facilitate adapting to Taper Seal, Medium Pressure, or other High Pressure threaded pipe systems.

Pipe o-ring check valves provide high quality directional

Pipe o-ring check valves provide high quality directional flow control and bubble tight shutoff for liquids and gases. These check valves are not to be used as a relief device. The opening pressure of the o-ring check valves is approximately 10 psi.
Pipe ball check valves prevent reverse flow where bubble tight shut off is not mandatory. These check valves are designed to operate to 660°F. These check valves are not to be used as a relief device. The opening pressure of the pipe ball check valves is approximately 10 psi.
This design increases the stainless steel filter area as much as 6 times the area of the disc type filter, and will permit higher flow rates with a lower pressure drop, and longer intervals between element changes.

Analytical high pressure elbow high-pressure pipe production process

Elbow production process is FD-LOK socket weld fittings a first polygonal cross-section or a polygonal ring shell closed at both ends of the multi-row fan shell, inside elbow washed over the pressure medium within the pressure applied, including action under pressure from the polygonal cross-section gradually turned round, eventually becoming a circular ring shell, this process ideally suited to the high-pressure method and stamping elbow elbow in diameter than the inner diameter larger than any standard 1.5 large elbow, is to create a large national standard elbow manufacturing. Elbow high pressure pipeline system applicable to oil, gas, chemicals, utilities, construction and boiler industry. Without tube for raw materials, equipment and metric pipe fittings can save tooling costs and arbitrarily large diameter and wall thickness can be obtained relatively thin GB elbow. Elbow can shorten the manufacturing cycle, the production cost is greatly reduced. Does not require any special equipment, it is particularly suitable for on-site processing of large GB elbow. Blank or developable surface is flat, so simple cutting, easy to ensure accuracy, easy assembly and welding. While high pressure elbow high pressure generally applicable to oil, gas, aerospace, shipbuilding, chemicals, utilities, fire protection, construction and other industries boiler piping series.

Stainless steel needle selection principles

1 , the pipeline system and cryogenic medium , should use plus low bonnet needle valve .
2 , the pipeline system FCCU refinery unit , optional needle valve lift rod .
3 , fixtures and piping systems , such as acid-base chemical systems in corrosive media , should use austenitic stainless steel , Teflon seat ring in  Stainless steel needle valves  .
4 , metallurgical systems, piping systems or devices on the power system , petrochemical plants , urban heating systems in high-temperature medium , the choice of metal to metal seal needle valve .
5, the need for flow regulation , the choice of the worm gear , pneumatic or electric adjustment with a V -shaped opening needle valve .
6 , transmission mains oil, natural gas , it is necessary to clean the pipeline , buried in the ground and the need , use full bore , all-welded construction needle valve ; buried in the ground , choose full bore welded or flanged connections the ball valve.
7 , pipelines and storage facilities for refined oil products , the choice of needle valve flange connection .
8 , city gas and natural gas pipeline , the choice of the needle valve flange and the threaded connection .
9 , metallurgical oxygen pipeline system , should use rigorous degreasing treatment , needle valve flange connection .

The advantages and disadvantages of the fixed ball valve

Advantage
1, double block and emission features: the fixed ball valve seat by spring preload variable, whether the valve is fully open or fully closed state, on the downstream side of the seat so that the fluid is blocked, the body cavity retentate through the discharge valve discharge.
2, automatic pressure relief feature: the Instrument needle valve body cavity retention medium caused by temperature rise when an abnormal pressure, without going through the safety valve, and the valve seat can only function of pressure relief automatically, which ensure that the safety valve in the delivery of liquid medium is very important.
3, fire safety structure: fire safety valve functions are available, the design, manufacture were to follow API 607 and API 6FA specifications.
Disadvantages
1, sealing grease emergency ambulance: as the foreign media or the fire caused the valve seat sealing failure, Instrument needle valve grease and grease gun provides a fast connection, import pump conveniently and quickly injected into the valve seat seal grease sealing parts, ease leak.
2, reliable stem sealing and low operating torque: in addition to setting the standard sealing ring, the packing gland has also set up O type sealing ring, double seals to ensure the reliability of the valve stem seals; addition of graphite filler and seal fat into the fire so that the valve stem leakage to a minimum. Stem bearings and thrust bearings so that the valve is easy to operate.
3, full size or reduced diameter: according to the selection of full size or necking structure needs. Full bore valve flow aperture consistent with the pipeline diameter, for pipeline cleaning.
4, the stem can be extended: according to the requirement of the installation or operation, the valve stem can be lengthened. Extension rod ball, especially suitable for urban gas pipeline laying occasions need buried. Long stem size according to customer needs to be determined.
5, the operation is flexible: the use of a small friction coefficient and good self lubrication of the valve seat and stem bearing, greatly reducing the valve operating torque. Therefore, even if not provided in the case of grease, but also the long-term flexibly operate on valve.

The advantages and disadvantages of the fixed ball valve:

Advantage
1, double block and emission features: the fixed ball Instrumentation ball valve seat by spring preload variable, whether the valve is fully open or fully closed state, on the downstream side of the seat so that the fluid is blocked, the body cavity retentate through the discharge valve discharge.
2, automatic pressure relief feature: the Needle valves body cavity retention medium caused by temperature rise when an abnormal pressure, without going through the safety valve, and the valve seat can only function of pressure relief automatically, which ensure that the safety valve in the delivery of liquid medium is very important.
3, fire safety structure: fire safety valve functions are available, the design, manufacture were to follow API 607 and API 6FA specifications.
Disadvantages
1, sealing grease emergency ambulance: as the foreign media or the fire caused the valve seat sealing failure, valve grease and grease gun provides a fast connection, import pump conveniently and quickly injected into the valve seat seal grease sealing parts, ease leak.
2, reliable stem sealing and low operating torque: in addition to setting the standard sealing ring, the packing gland has also set up O type sealing ring, double seals to ensure the reliability of the valve stem seals; addition of graphite filler and seal fat into the fire so that the valve stem leakage to a minimum. Stem bearings and thrust bearings so that the valve is easy to operate.
3, full size or reduced diameter: according to the selection of full size or necking structure needs. Full bore valve flow aperture consistent with the pipeline diameter, for pipeline cleaning.
4, the stem can be extended: according to the requirement of the installation or operation, the valve stem can be lengthened. Extension rod ball, especially suitable for urban gas pipeline laying occasions need buried. Long stem size according to customer needs to be determined.
5, the operation is flexible: the use of a small friction coefficient and good self lubrication of the valve seat and stem bearing, greatly reducing the valve operating torque. Therefore, even if not provided in the case of grease, but also the long-term flexibly operate on valve.

Stainless steel needle selection principles

1 , the pipeline system and cryogenic medium , should use plus low bonnet needle valve .
2 , the pipeline system FCCU refinery unit , optional needle valve lift rod .
3 , fixtures and piping systems , such as acid-base chemical systems in corrosive media , should use austenitic stainless steel , Teflon seat ring in  Stainless steel needle valve  .
4 , metallurgical systems, piping systems or devices on the power system , petrochemical plants , urban heating systems in high-temperature medium , the choice of metal to metal seal needle valve .
5, the need for flow regulation , the choice of the worm gear , pneumatic or electric adjustment with a V -shaped opening needle valve .
6 , transmission mains oil, natural gas , it is necessary to clean the pipeline , buried in the ground and the need , use full bore , all-welded construction needle valve ; buried in the ground , choose full bore welded or flanged connections the ball valve.
7 , pipelines and storage facilities for refined oil products , the choice of needle valve flange connection .
8 , city gas and natural gas pipeline , the choice of the needle valve flange and the threaded connection .
9 , metallurgical oxygen pipeline system , should use rigorous degreasing treatment , needle valve flange connection .

37° flared tube fittings typical applications

37° flared tube fittings typical applications: hydraulic service, instrumentation and chemical processing. Highly recommended for high pressure and high vibration applications.
1,Connect many varieties of tubing without flaring.
2,tubing fittings come assembled with tube nuts and ferrules.
3,Fittings and tube nuts are type 316 stainless steel. Tube sleeves are 17-4PH stainless.
4,Flareless compression fittings also available in carbon steel.
5,Use with aluminum, hard or half-hard copper, steel, stainless steel, monel, titanium and heavy wall tubing that cannot be flared.

Pipe valves may be used both with gases and liquids.

Pipe valves with metal to metal seats have a high level of safety and reliability under adverse operating conditions. These valves may be used both with gases and liquids. Traceability is ensured through extensively documented data (batch number, maximum pressure, material number, type designation). All pipe valves come with female national pipe threads. These are high pressure pipe fittings for high pressures.
These check valves are not to be used as a relief device. The opening pressure of the pipe ball check valves is approximately 10 psi. Connection type on these is high pressure NPT fittings and connections.

FD-LOK’s high pressure pipe fittings

FD-LOK’s high pressure pipe fittings are designed for process control connections between pipe sizes. Engineered specifically for high pressure applications.
An extensive choice of configurations includes:
• male and female elbows and tees
• female cross and hex couplers
• standard and long male hex nipples
• reducing bushes
• male/female adaptors
• pipe caps
As standard, all FD-LOK high pressure pipe fittings are manufactured from stainless steel. Other materials are available to special order. The stainless steel fitting are packaged in sealed boxes to ensure cleanliness.

high pressure pipe fittings are designed for liquid and gas applications

FD-LOK high pressure pipe fittings are designed for liquid and gas applications. The Series Fittings are high pressure NPT fittings for high pressures.
NPT threads must be sealed using a high quality PTFE tape and/or paste product. Sealing performance may vary based on many factors such as pressure, temperature, media, thread quality, thread material, proper thread engagement and proper use of thread sealant. NPT pipe fittings is assembled and disassembled because thread deformation during assembly will result in deteriorating seal quality over time. When using only PTFE tape, using thread lubrication to prevent galling of mating parts is recommended.

37° flared tube fittings are the most widely used

37° flared tube fittings are the most widely used fittings in the world.
JIC flared Tube fittings, as defined by the SAE J514, MIL-F-18866 and ISO 8434-2 standards are a type of fitting machined with a 37° flare seating surface. 37° flared JIC tube fittings (such as Parker Triple-Lok) are the most widely used fittings in the world. JIC fitting’s appeal is its adaptability, compact design, ease of assembly, reliability and availability. JIC 37° flare fittings are manufactured in steel, 316 stainless steel or brass, and are readily available through Hose & Fittings, Etc.

Double Ferrule Tube Fittings have been specially designed

double ferrule tube fittings are composed of four precision-engineered components manufactured to very stringent tolerances under rigid quality control procedures. The consistency and quality of these matched components permits the use in many critical applications and severe services.
Double Ferrule Tube Fittings have been specially designed for use in instrumentation, process and control systems of chemical, petroleum, metallurgical, power generation, pulp and paper plants, where fittings are subjected to vibration, high internal pressure, pressure and temperature cycling. Double Ferrule Tube Fittings contains most widely used sizes of Tube fittings but other sizes can also be supplied on demand. The dimensions given in this catalogue are nominal dimensions of fittings in the hand tight position.

Manufacturer of pipe fittings

Manufacturer of pipe fittings including high pressure pipe nipples. Available in high purity PFA material & in sizes from 1/8 in. to 1 in. Pipe nipples feature leak-tight & permanent connection type construction & are used for high flow, minimal pressure drop & ultra-pure or corrosive chemical applications. high pressure pipe fitting manufacturers provide a proper connection for hydraulic components, and Male and female NPTF threaded fittings in common sizes allow easy connection of all components. high pressure pipes and fittings satisfy the increasing demand for American and European standard pipes and fittings for Plumbing applications.

an excellent pressure fitting

A FD-LOK 37° flared tube fittings is an excellent pressure fitting having a broad selection of styles & shapes and is very extensively used all over the globe. Main features that call for its use are its simplicity, compactness in design, ease of assembly, high reliability, easy availability & global acceptance. These flare tube fittings stainless steel can also be used as hose adapters.
The basic design is simple, which uses a flared tube end to hold & seal the medium under pressure. Main construction consists of three pieces: the body, sleeve & nut. The end of the tube is flared to 74 degrees included angle and held in between the body nose and the sleeve with a nut on top of them, thus resulting in a very effective seal between the fittings and the flared tube.

Double Ferrule Tube Fittings provide leak proof

The double ferrule design and sequential action of the fittings overcome in-variation of tube wall thickness and hardness to assure safe, reliable, leak-free connections. double ferrule tube fittings provide leak proof, torque-free seal at all tubing connections and eliminate costly hazardous leaks in instrumentation and process tubing lines.  Double Ferrule Tube fittings connection uses the compression method for safe connection. It avoids threading, soldering or crimping the tube and permits rapid, easy and reliable connection where removable tubes require perfect tightness, both under pressure and high vacuum as well as under severe temperature and vibration conditions.

Double Ferrule Tube Fittings Design

Double Ferrule Tube fittings have been specially designed for use in instrumentation, process and control systems of chemical, petroleum, metallurgical, power generation, pulp and paper plants, where fittings are subjected to vibration, high internal pressure, pressure and temperature cycling.
double ferrule fittings Design
1. The back ferrule dampens the tube circuit vibration through a spring like action. The back ferrule prevents a carry over of tightening torque from the fitting nut to front ferrule.
2. The front ferrule circumferentially seals the surface between the tube and fitting. The inner taper of front ferrule is pressed on the tube so that a pressure tight impression is formed.
3. Silvering of nut threads prevents seizing/galling. This allows repeated use of fittings.
4. A deep body on tube side and taper guarantees accurate positioning and centering of tube.

FD-LOK double ferrule fittings are available in stainless steel

FD-LOK double ferrule fittings are available in stainless steel, alloy steel, carbon steel, brass, monel, titanium, hastelloy, inconel or other alloys based as per client requirements. These Fluid Lok double ferrule fittings are used in process control as well as hydraulic and pneumatic applications in industries like chemical, petrochemical, fertilizer, offshore, power plants, etc. We have Fluid FD-LOK double ferrule monel fittings in standard and customized sizes and nominal bore sizes with variety of end connections. These Fluid Lok double ferrule fittings are designed and developed as per the international quality standards like ASTM, BS, BIS, etc.

37° Flare Hydraulic Fittings is very common in fluid power systems

37° Flare Fittings is very common in fluid power systems. Both the male and female halves of the connections have 37° seats. The seal takes place by establishing a line contact between the male flare and the female cone seat. The threads hold the connection mechanically. CAUTION: in the -02, -03, -04, -05, -08, and -10 sizes, the threads of the SAE 45° flare and the SAE 37° flare are the same. However, the sealing surface angles are not the same.
flare tube fittings Applications:
For use with machine tools, agricultural and earth moving machinery, instrumentation, chemical processing systems, and most other high pressure hydraulic applications.
Pressure Ratings:
Working pressures up to 5000 PSI. Working pressures will vary depending on tube and fitting size. (For applications using extreme pressures at 5000 PSI or above, contact World Wide Fittings.)

Flare pipe fittings design

The flared tube fitting sleeve insures tube alignment with the fitting body axis and minimizes mechanical strain on the tube.
Flare pipe fittings design allows for repeated disassembly and re-assembly with no need to replace any components. A wide range of configurations are available such as straight connectors, elbows, union, tees, and crosses as well as unique special adapters. Standard flare fitting materials include brass, carbon steel, and stainless steel.
Defined by MIL-F-18866 and SAE J514 standards, these flare fittings have been machined to have a 37° flare seating surface. These fittings are most commonly used in fluid power and fuel delivery applications, especially those using high pressure. These JIC fittings are identical, in a dimensional design, to Aeronautical-Navy fittings, but they have been manufactured to be cost effective and to tolerances that are not as high or specific.
In the fluid power industry, these fittings are used in a test-point and diagnostic setting. There are instances with a three-way coupling can offer a port inline of circuit that allows the user to connect diagnostic equipment or measuring device so pressure readings and system diagnostics can be performed.

High pressure hydraulic tube and pipe fittings

High pressure hydraulic tube and threaded pipe fittings made from Type 316 Stainless Steel for maximum corrosion resistance. Stainless steel is recommended for marine applications, chemical processing and other harsh operating conditions.
Stainless Steel high pressure pipe fittings specifications:
Precision Pipe Fittings machined from bar stock or from forgings.
Working pressures conform to power piping code ANSI B31.1 & refiner code ANSI B31.3.
All fittings are rated for 4500PSI or greater.
All exposed threads protected with plastic caps.
Material is 316SS.

Parher's 37° Flare JIC tube fittings and adapters

Parher's 37° Flare JIC Tube fittings and adapters, meet the requirements of both SAE J514 and ISO 8434-2 and offer the industry's broadest offering of port ends. The design has a small metal to metal seal area which results in a compact design, low assembly torque, high temperature and high pressure capability.
Features/Benefits:
• Easily adaptable to inch tube, metric tube fittings and hose giving it worldwide acceptance.
• Vast selection of port end options, including SAE Straight threaded pipe fittings, NPTF, BSPP-ED, BSPP-O-ring Retaining Ring (ORR), BSPP, BSPT, ISO 6149, Metric-O-ring Retaining Ring (ORR), and Metric-ED
• Parher's adjustable ports is manufactured with a longer locknut virtually eliminating washer damage and potential leaks, as well as making assembly mistake-proof.
• Steel fittings substantially exceeded the SAE corrosion requirements of 72 hours without red rust, lasting up to 1,000 as found by an independent test facility.
• Stainless Steel nuts have a coating to prevent galling.
• Available in steel, stainless steel, and brass in sizes 1/8” - 2 ½” with working pressures up to 7500 psi.

High Pressure Equipment Company

High Pressure Equipment Company has developed a line of High Pressure products to assure safe and easy plumbing for 30,000, 40,000 and 60,000 psi. These needle valve, fittings, line filters, Check valve, safety heads, rupture discs, anti-vibration gland assemblies, tubing and nipples are engineered to the highest standards of repeatable quality. The reliable performance of these products has made HiP one of the world’s leading suppliers of elevated pressure components.
High Pressure components use a coned-and-threaded connection which accommodates the high temperatures and pressures common in these applications. high pressure ball valves are available in various tubing sizes and with body designs to satisfy widely varied requirements. A line of fittings is available to facilitate adapting to Taper Seal, Medium Pressure, or other High Pressure threaded pipe systems.

FD-LOK 37° flared tube fittings are the most widely used fittings

FD-LOK 37° flared tube fittings are the most widely used fittings in the world.
JIC flared fittings, as defined by the SAE J514, standards are a type of fitting machined with a 37° flare seating surface. 37° flared JIC tube fittings are the most widely used fittings in the world. JIC fitting’s appeal is its adaptability, compact design, ease of assembly, reliability and availability.
Although most JIC fittings are commonly viewed as 3,000 PSI connectors, Parher JIC flared fittings are rated at 9,000 PSI for 1/4" size to 2000 PSI for 2” size. Parher JIC 37° flare fittings are manufactured in steel, 316 stainless steel or brass, and are readily available through Hose & Fittings, Etc.
The SAE 37° flared tube fitting system consists of three components to make a tubing assembly: body, nut, and sleeve.
The SAE flared Tube fittings relies on metal-to-metal contact between the finished surface of the fitting nose and the inside diameter of the flared tubing to make a seal. SSP takes great care in the manufacturing process to produce a flared nose surface that far exceeds published specifications. This high finish reduces the likelihood of leakage due to irregularities in the flared tubing.
As the fitting nose and flared tubing are drawn together, they are supported by the fitting sleeve, which distributes the compressing load caused by the nut as it is threaded onto the fitting body during assembly.
SAE flared tube fittings are available for inch and metric tubing. Metric assemblies are constructed with standard inch bodies, and special nuts and sleeves designed for metric tubing.

37 ° cone sealing tubing fittings

37 ° cone sealing tubing fittings, 37 ° flared cone seal fittings, pipe threads specification and use 37 ° flared tube fitting, NPT American taper thread effective anti-adhesion formulation known as the American standard ANSI specification works push pull thread external thread with an internal thread, NPT external threads NPT internal threads not only fit, sometimes with the NPSC, this is similar to the T, grain peak and root cut into the same shape because of tolerance, high clearance stainless steel 37 ° flare fittings, pressing the two complexes are available 37 ° flare fittings, such as lubricating together, it becomes dense with resistance, resistance to close with the closure of those otherwise known as dry as NPTF. NPSF and so pay a group of F
37 ° Cone Seal Reducing adapter, flared Reducing adapter GB / T 5625-2008, flared end straight couplings This standard specifies the flared end of the straight pipe fittings and fittings body size, label and skills requirement.

The difference between double and single fittings

double ferrule tube fittings and single tubing fittings are used on the card sleeve. Dual card sets using special alloy, large deformation, but also to ensure its rigor and sealing, its strength is better than other materials.
General tube connection can use double or single fittings, dual card ring card sets can be repeated several times and can guarantee tightness disassembly. Single card sets of pipe fittings and ordinary and tube connections, as a head no need thread connecting with ordinary tube, threaded to connect to the card casing. For large double ferrule can ensure the strength, the small card sets to meet deformation requirements of use. Fittings mainly by the joint body with 24 degrees conical hole with a sharp inner edge of the sleeve 2 and the pinch effect from the compression nut 3 III some components. 3:00 tighten the nut, sleeve 2 is pushed 24 degrees tapered bore and consequent deformation, so that the body of tapered ferrule and fittings constitute a spherical touch seal. Inner edge card sets embedded steel tube 4, the outer wall of the pressure out of a ring groove, then play a reliable sealing effect. Pipe stress relief annealing best selection of 20 # fine extubation, it is a good edge embedded in the outer appearance of pipe fittings, play reliable sealing effect.

pipe fittings design requirements

high pressure pipe fittings installation with the low-pressure pipe installation requirements similar, but more demanding, more stringent provisions, therefore, in addition to the requirements, the low-pressure pipe installation requirements, the following requirements should still perform.
When the high-pressure pipeline installation, you should use the official fixed pipe rack, pipe rack and high-pressure pipes, pipe fittings contact design requirements should install a protective sleeve. Installation should expose the high-pressure pipe flange end thread chamfer. When installing the gasket, do not use a wire dipping advance shall nozzle and pad coated with butter, soft metal high-pressure washer should be accurately placed in a sealed housing. The flange bolts should be symmetrical and evenly tightened, not over after the bolt tightening, two concentric flange should remain parallel, exposed on the outside of the nut should be 2 to 3 buckle, at least not less than 2 buttons, and various bolts exposed length consistent. During the installation process, not use strong pull, strong push, strong twist or modify gasket thickness ways to compensate for manufacture or installation error. Pipeline installation work as impossible to continuously conducted and completed, should be promptly closed the open nozzle. Parts meter sampling site should also be installed on the pipe and the pipe.

steel tubing pipe specifications

stainless steel tubing fittings suitable for thin-walled tubular member and a lower pressure of the occasion.
Flared type tubing fittings for medium: oil, water, gas and other non-corrosive or corrosive media fittings, equipped with flexible steel tubing pipe specifications, pipe welding after having connected securely, sealing performance good features, which are widely used in oil refining, chemicals, light industry, textile, defense, metallurgy, aviation, shipbuilding and other systems; also suitable for all kinds of mechanical engineering, machine tools and equipment such as hydraulic transmission lines.
Flared type tube fittings used with check valve quick couplings: in supply / return oil and stress testing interface, pump oil interface, with self-proclaimed role when not connected tubing. Back to oil and hydraulic fluid interface with flared fittings. Hydraulic component assembly and rubber hose (not shown): components and fittings needed to connect the circuit is a separate component of the test bed, hydraulic components for the plate valve, separate board installed in a standard transition, transition plate surrounded by a corresponding number of external components equipped port fittings, the back transition board has "T" shaped pegs for mounted hydraulic components.

High pressure stainless steel tubing fittings

High pressure stainless steel tubing fittings are the most widely used chromium - nickel stainless steel, with outstanding corrosion resistance, heat resistance, low temperature strength and mechanical properties. Corrosion in the atmosphere, and if it is heavily polluted industrial atmosphere or region, demand for timely cleaning to prevent corrosion. Suitable for use in food processing, storage and transport. Outstanding processing capabilities and weldability. Plate heat exchanger, bellows, household goods, building materials, chemical, food industries.
Operational capacity of its high pressure pipe fittings where the stress related to the situation. Accounting and field operations for pipe stress measurement found elbow arc particularly sensitive point in the external load. To get rid of internal pressure and external load weight, etc. mainly in the starting process piping thermal expansion of metal pipes, tubing hanger sensation and abnormal operations and other additional external load caused. When the elbow is a cross-sectional arc butt weld, these changes will form a crater in the external load stress messy situation, severe weakening the weld strength and decrease operational capability elbow, elbow shorten life. To this end, from the depicted think the interface into the straight section butt welded elbow, that is portrayed with a straight segment elbow, it is conducive to weld butt weld quality progress, improvement elbow life.

Tube Fittings have a solid connection

Tube fittings suppliers said that Tube Fittings have a solid connection, high voltage capability, temperature, sealing, and repetition is good, easy installation and maintenance, safety and reliability.
Works Tube Fittings is the steel insert card kit, use card sets nut, inconsistent card sets, cut the tubing pipe and seal. When it is connected with the pipe without welding, it is conducive to fire, explosion, and high-altitude operations, and to eliminate the evils of careless welding. So it is oil refining, chemical, oil, gas, food, pharmaceutical, instrumentation, and other pipeline systems controlled device in a more advanced connection. It applies to pipe oil, gas, water and other connections.
Card sets of pipe fittings is composed of three parts: the connector body, sleeve, nut. When the card is inserted into the sleeve and the sleeve nut on the pipe joint body, when tightening the nut, the front end of the outer sleeve and the connector body tapered fit, uniformly bite into the inner edge of seamless steel tubes, to form an effective seal.

flare tube fittings for medium

flare tube fittings for medium: oil, water, gas and other non-corrosive or corrosive media fittings , equipped with steel pipe specifications more flexible, and After the pipe welding with a solid connection, good sealing performance characteristics, which are widely used in oil refining, chemical industry, light industry, textile, defense, metallurgy, aviation, shipbuilding and other systems; also suitable for all kinds of mechanical engineering, machine tools, etc. hydraulic transmission lines. forged steel valve Manufacturing Standards
1, the flared end of the straight pipe fittings (GB / T 5625-2008)
2, flared taper thread straight couplings (GB / T 5626-2008)
3, flared long tapered thread fittings (GB / T 5627-2008)
4, Flared type tube fittings (GB / T 5628-2008)
5, flared taper thread elbow fittings (GB / T 5629-2008)
6, flared elbow fittings (GB / T 5630-2008)

high pressure pipe fittings pipe material characteristics

Reducing its high pressure pipe fittings pipe material characteristics: type of steel is a low carbon structural steel, low content of alloying elements, generally below 3%, which is characterized by intensity was significantly higher than the same amount of carbon carbon steel , has good toughness and ductility and good weldability and corrosion resistance. In order to improve and enhance the performance of the pipe fittings steel, the addition of other alloying elements on the basis of carbon steel, such as silicon, manganese, chromium, nickel, tungsten, vanadium, titanium, etc., this is called alloy steel. Steel alloying elements according to different, have different properties, such as high wear resistance, corrosion resistance, low temperature, high magnetic properties, good special properties. Divided by use of steel alloy structural steel, alloy tool steel and special properties of steel.