Flat brake is analysed and the characteristic of pneumatic valve

flat brake pneumatic valve can be divided into the following main characteristics
. Pneumatic valve seat sealing structure should be elastic with pre-tightening force, either upstream or downstream seal seat sealing structure at the same time. Pneumatic seating and sealing seal between content is always face to face.
. Pneumatic valve seat has self-cleaning function, and in the process of pneumatic valve is opened or closed without being directly eroded by the airflow. Pneumatic valve seat shall be made with lubrication, no wear materials.
. Pneumatic valve actuator fault will not affect other parts of the pneumatic valve, repair and replacement work without dismantling the pneumatic valve.
( Yoke sleeve: aluminum bronze yoke sleeve needle thrust bearing, the greatest degree to reduce operating torque.
( Pneumatic valve stem, length of thread until the bracket; Pin and spot welding; Has the stability.
( Pressure seal: simple structure, configuration of segmented retaining ring and mild steel silver plated gasket to aid disassembly and achieve the best pneumatic bonnet seal.
( Pneumatic seat ring: welding pneumatic seat ring is perpendicular to the flow channel, easy to maintain.
( Actuator: these pneumatic valves can be furnished with electric, pneumatic or hydraulic cylinder actuators. DN the following configuration standards manual handwheel, DN above configuration oblique gear operator.
( Yoke: fully fabricated yoke is seismically test, easy maintenance and actuator mounting.
( Gland: a two-piece, self-adjusting gland, avoid being pop up.
( Integral backseat: hardfaced, the longest service life.
( Pneumatic disc: spring load pneumatic disc to adjust themselves, reduce actuator torque requirements.
( Overall: stop integrally cast carrier stop, positions pneumatic disc holder assembly makes pneumatic seat available more stable.

. Pneumatic valve has two kinds of casting and welding structure.
. Pneumatic seat O ring seals and pre-tightening force of the floating pneumatic seat structure, import and export bidirectional pneumatic valve seal; And the structure of the open-close torque is only ordinary/pneumatic valves, pneumatic valves open and close easily.
. Metal to metal seal pneumatic valve, pneumatic valve body is grease injector outside of it, grease by greasing device, pneumatic seat into the pneumatic valve sealing surface, make the pneumatic valves to achieve zero leakage.
. Pneumatic seat is Mosaic PTFE seal face with PTFE to metal and metal to metal seal, PTFE sealing surface dirt and remove disc.
. Ram, pneumatic seat after the special craft processing, spraying weld hard alloy, four fluorine wear-resisting, realize the double seal. And can double protection grease auxiliary seal, seal more available, longer service life.
. Pneumatic valve with flow guide hole gate, whether it is fully open or always fitted with the sealing face, the sealing face protected without being directly eroded by the medium, so as to prolong service life.
. Pneumatic valve in full open, smooth channel for straight line, small flow resistance coefficient, no pressure loss, can connect the bulb cleaning line.
. This pneumatic valve USES the packing structure with the sealing ability, without constant adjustment, features very light open and close, and sealing can be *, an auxiliary sealing grease injection structure is set in the packing, the sealing performance absolutely available, to achieve a true null leak, Solve the general packing place of pneumatic valves to be easiest leak of ills.
. Pneumatic valve shut down automatically removing the inner cavity and pressure, ensure use safety.
. Fully closed structure and protective performance is good, can meet the requirements for the clock.
. Pneumatic valve an indication rod or viewing window to indicate the pneumatic valve opening and closing.

the main purpose of the pneumatic valve plate gate:

flat brake pneumatic valve is suitable for natural gas, petroleum, chemical industry, environmental protection, city pipeline, the gas pipeline conveying pipeline, such as steam vent system and the storage device, used for opening and closing device. Z type single plate brake disc type pneumatic valve with flow guide hole is suitable for gas extraction and purification of long distance pipeline.
flat brake pneumatic valve diameter range: : DN ~ pressure range. MPa ~ MPaLb ~ Lb
flat brake with flow guide hole pneumatic valve is used to need to pass the ball the pipeline pigging, without diversion hole used to don't need to pass the ball on the pipeline pigging.