First, the product overview
Pneumatic Flange Gate Valves are low-profile, open-rod pneumatic gate valves with a pneumatic actuator (double-cylinder with buffer mechanism) and manual and protective mechanisms (manual and self-locking pneumatic-manual conversion). Due to the double-layer cylinder structure, the valve has doubled the lifting force compared to the single-cylinder pneumatic gate valve. This fundamentally solves the disadvantage that some valve cylinders of single-cylinder pneumatic gate valves are wedged and cannot be opened. Moreover, since the pneumatic gate valve has a buffer mechanism, it can effectively decelerate and lighten the stainless steel pneumatic valve, the wear of the valve plate sealing surface and the valve body sealing surface caused by the downward impact of the piston, and at the same time, the gate can be prevented from being stuck. The phenomenon.
The actuator of the pneumatic gate valve has two functions of positive and negative, so the opening and closing modes of the valve have two modes of action: gas opening and gas closing. The pneumatic gate valve adopts the unique structure of metal contact, reliable operation, and has extremely high cutting performance, which is superior to the conventional shut-off valve. Pneumatic gate valves have excellent cutting performance and are widely used in the industrial field. Pneumatic gate valves are reliable in performance, easy to operate and easy to maintain. They are widely used in petroleum, chemical, marine and other sectors for the control of various media.
Second, product features
1. Pneumatic gate valve is equipped with pneumatic actuator and manual mechanism.
2. The gate valve actuator adopts a double-layer cylinder structure, which doubles the lifting force compared with the single-cylinder pneumatic gate valve.
3. Solved the disadvantage that some valve plates of single-cylinder pneumatic gate valves are wedged in the valve body and cannot be opened.
4, with a buffer mechanism, can effectively reduce the wear of the valve plate sealing surface and the valve body sealing surface caused by the downward impact of the piston when the valve is closed, and can also avoid the phenomenon of the gate jam.
5, the sealing performance is very good, allowing the leakage to reach 10-8 × KV.
6, a wide range of use, the temperature can be -196 ° C - 600 ° C, caliber 40mm - 600mm. The valve seat has three parallel, 60°V-shaped incisions and 90°V-shaped incisions to meet the needs of different applications.
7. The pneumatic gate valve body can be insulated by the jacket type, which is used for the occasion of blockage, condensation or coking after the medium is cooled.
Third, the main technical parameters
Fourth, structural characteristics
The general gate valves used in the market have been leaking or rusting for a long time. The company has introduced the elastic seat sealing gate valve produced by European high-tech rubber and valve manufacturing technology, which overcomes the defects of general gate valve sealing, rust and other elastic seats. The sealing valve uses the elastic ram to produce a slight elastic deformation compensation effect to achieve a good sealing effect. The valve has the advantages of light switch, reliable sealing, good elastic memory and long service life. Can be widely used in tap water, sewage, construction, petroleum, chemical, food, pharmaceutical, textile, electric power, shipbuilding, metallurgy, energy systems and other body pipelines as a regulating and intercepting device.
Five, performance parameters