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Pneumatic Gate Valve

Pneumatic Gate Valve


Description of Pneumatic Gate Valve:

ZECO pneumatic gate valve is a gate valve driven by compressed air. ZECO pneumatic gate valve has stable performance and convenient operation. It has been widely used as a quick cut-off valve in oil, natural gas and other industrial projects. Pneumatic actuator adopts double-layer cylinder structure, compared with ordinary single-cylinder actuator, its lifting force is larger, which solves the problem that the opening torque of large-diameter gate valve is too large to open. Because pneumatic actuators open and close quickly, ZECO is equipped with cushioning mechanism to reduce the wear of sealing surface and gate during quick closing.


Features of Pneumatic Gate Valve:

1. ZECO pneumatic gate valve adopts double cylinder structure, the opening force is twice as large as that of single cylinder structure, and it can easily open those single cylinder which cannot be opened due to the large opening torque of large diameter gate valve or high pressure gate valve in valve body;

2. The pneumatic of ZECO pneumatic gate valve has positive and negative functions, which also makes the valve have the function of quick opening and quick closing. In addition, because the wedge structure of the gate valve is more tightly sealed, the pneumatic gate valve has excellent cutting function, which is more advantageous than other conventional valves;

3. The pneumatic of ZECO pneumatic gate valve has buffer mechanism, because the opening or closing speed is too fast, no buffer mechanism may damage the valve body sealing surface and gate sealing surface and cause the valve can not be sealed;

4. ZECO pneumatic gate valve can also be equipped with a pneumatic change-over mechanism on the cover of the pneumatic actuator. In case of accidental failure of the pneumatic actuator, the valve can be opened or closed by manual operation.


Material of Pneumatic Gate Valve:

No

Part

Material

1

Body

ASTM A216 WCB

2

Seat Ring

ASTM A105 + 13Cr

3

Wedge

ASTM A216 WCB + STL

4

Stem

ASTM A276 410

5

Bonnet Gasket

Graphite + SS304

6

Bonnet Bolt

ASTM A193 B7

7

Bonnet Nut

ASTM A194 2H

8

Bonnet

ASTM A216 WCB

9

Backseat

ASTM A182 F6a

10

Stem Packing

Reinforced Graphite

11

Pneumatic Actuator

ASTM A216 WCB


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