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Vacuum Breaker Valve

Vacuum Breaker Valve

Size: 8inch(DN200)
Pressure: 150LB(PN25)
Material: WCB
Connection: Flange with breaker
Operation: Rotork electric actuator

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Vacuum breaker Valve, Vacuum breaker gate valve, gate valve with breaker.

For critical applications where vacuum protection is a must or where column separation is predicated, a vacuum breaker is used. The valve works automatically once there is negative pressure or vacuum raised in pipeline and tank, to prevent other equipment from broken, concave cracks. The Vacuum breaker valve is mounted at critical pipeline high points, tanks or penstocks and allows for rapid inflow of atmospheric air to reduce vacuum conditions in piping systems.


Size: 8inch(DN200)

Pressure: 150LB(PN25)

Material: WCB

Connection: Flange with breaker 

Operation: Rotork electric actuator


1.Full flow areas offer maximum vacuum protection for pipelines and tanks

2.optional in flow preventer.

3.Resilient seals provide drop tight seating

4.Connection for optional air release valve –to vent entrained air

5.Quick response without electricity 

6.Long service time

Product Name:

Vacuum breaker valve

Gate valve with vacuum breaker

Vacuum breaker valve for power

Motored gate valve with vacuum breaker

critical gate valve for power plants


2inch to 20inch(DN50 to DN500)

Pressure rating

150LB to 600LB (PN10 to PN64)


A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15、 A351 CF8、CF8M、CF3、CF3M, etc

End connection:

butt welding


Operation type

Hand wheel, Gear, Electric actuator

Design Standards:


ASME B16.34

Face to Face:

ASME B16.10

Test standard:

MSS SP-61, API598

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