EPDM Rubber Combination Air Release Valve Single Valve Chamber Founded

EN1074-4 Combination Air Release Valve Single Body Full Flow Area Triple Function

Feature:

AFC's air release valve conforms to International standard EN1074-4 and AWWA C512. 

Compared with other plant air valve, ours have not only large air exhausting and large air intake under invacuum,but also one more function of small air releasing. As we know normally there is 2% air in water system,our av does not stop small air venting untill all air in valve is completely released while the top seal arc in closed status. 

Our air valve is 100% full bore(inlet-outlet),simple components,valve body and bonnet, float,seal arc, guide barrel etc,most of them can be recycled-evironmental. Single valve chamber,unlike many connected bodies are easy to break up during transportation. All internal accessories are of AISI 304SS, hardness and quality are quaranteed.

There is a seal gasket in the valve above big float and it helps orifice make better sealing effect. With rubber seal gasket above float, it can absorb water hammar to avoid crash with seal arc and valve body and protect air valve from hurting.

Anti-shock accessories is available.

Size Selection Table:

Material List:

KARS ( Thread Type DN25-DN50) 

KARX ( Flange Type DN50-DN300)

Dimension:

KARS ( Thread Type DN25-DN50)

KARX ( Flange Type DN50-DN300)

Air Flow Characteristic

Large Air Exhausting

Air Intake

Small air venting