The main features of Stainless steel needle valve

Stainless steel needle valve in the closed position, the valve is still there inside the pressurized fluid prior to maintenance, lift the front line pressure valve in the open position Instrument manifolds and make repairs before disconnecting the power or gas supply service, the actuator and bracket must first check out on the next ball, after removing the pressure downstream pipeline has indeed only exploded assembly operation and care must be taken to prevent damage to the decomposition of the sealing surface again when the parts assembly, especially the non-metallic parts. Stainless steel needle valve seal reliable, simple structure, easy maintenance, regular spherical surface and seal in the closed state, the media can not easily be eroded, easy operation and maintenance for water, Double ferrule fitting solvents, acids, and natural gas work in general media, and Stainless steel needle valve is also suitable for harsh working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene, etc., in various sectors has been widely used. Widely used in petroleum refining, long-distance pipelines, chemical, paper, pharmaceutical, water, electricity, municipal, steel and other industries.

Stainless steel needle valve of the course

Stainless steel needle valve refers to the amount of relying on its own motion and automatic referral opening and closing the valve, check valve lift amount has stopped mediated backflow valve. Check valves are an automatic valve, its tail to be mediated by impulse is to stop the amount back, stop the pump and drive motor reversal,High pressure ball valve the war put a container full amount of referrals. Stainless steel needle valve refers to the amount of relying on its own motion and automatic referral opening and closing the valve, check valve lift amount has stopped mediated backflow valve. Check valves are an automatic valve, its tail to be mediated by impulse is to stop the amount back, stop the pump and drive motor reversal, Valve manifolds the war put a container full amount of referrals. Stainless steel needle valve of the valve disc-shaped, around the shaft for rotational movement of the seat channel, due to internal valve passage into a streamlined, smaller than a liter of active resistance butterfly valve for low flow rates and infrequent events changes in large-caliber place, but not for pulsatile flow, the sealing performance is less than lift.

Stainless steel needle valve exterior feature presentation

Stainless steel needle valve simple structure, small size, resistance to fluid flow is small, the disadvantage is turned on or off too quickly, it will produce water hammer (when a sudden change in the flow velocity in the pipe pressure will rise) in the pipeline. Instrument needle valve Therefore should not be used in the main pipe valve, available in dry, or the end of the branch pipe for wash-use, flushing sewage effect. Including the development of iron and steel, sealing materials, and mechanical processing industries will have a significant impact on the level of technical parameters of the valve. Stainless steel needle valve of strength, ductility,High pressure ball valve  corrosion resistance, resistance to high pressure directly affects the valves, corrosion resistance; production level determines the valve sealing material applicable to medium and can withstand the pressure; precision machining is the impact of the interface seal, the valve head and an important factor in seating levels.

Stainless steel needle valve structure in the form of presentation

Stainless steel needle valve pneumatic device safe, reliable, low cost, easy maintenance, the structure of the valve drive a big branch. World Valve Network Xiaobian for you Instrument needle valves in detail the structure of the valve pneumatic device technology requirements and performance requirements for reference. Structural technical requirements valve pneumatic device: the pneumatic cylinder by means opening indication, stroke limit, pneumatic components, manual mechanism, signal feedback and other components. Pneumatic device with a buffer mechanism, the stroke length of the buffer mechanism can refer to Table l requirements. Buffering mechanism with adjustable pneumatic devices, there should be external to adjust its buffer cylinder body. Stainless steel needle valve with Instrument valve manifolds manual mechanism in the gas supply is interrupted, the valve should open and close operations can be performed manually institutions, while facing the hand wheel, hand wheel or handle counterclockwise rotation of the valve should open the valve clockwise turn off. Rod ends for the inner and the outer thread, there should be a standard spanner wrench applicable mouth. Piston seals should be easy to replace and repair. Stainless steel needle valve when the main line in the pipeline and gas pipeline buried in the ground in the need, the need to use full bore welded ball valve. Double ferrule fitting  in the wider application of irrigation systems, mainly used in the branch entrance. Ball simple structure, small size, resistance to fluid flow is small, the disadvantage is turned on or off too quickly, it will produce water hammer (when a sudden change in the flow velocity in the pipe pressure will rise) in the pipeline. Therefore should not be used in the main pipe valve, available in dry, or the end of the branch pipe for wash-use, flushing sewage effect.