Spill Free Waste Water Combination Sewage Air release valve Single Body Triple Function Flange Type​

Features:

. Drain boss at the top & bottom for cleaning.

. Spill Free.
. Advanced design: Simple mechanism and strong float to prevent cracking during sudden water hammer& quick closure.

Description:

AFC's sewage air release valve conforms to International standard EN1074-4 and AWWA C515.
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.

All internal accessories are of AISI SS316, 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.

Service Fields:

For sewage water system.

Technical Data:

Size range: DN 50-200MM
Pressure ratings:1.0Mpa,1.6Mp (Flange)
Working temperature: -10°-80°C.
Flow media: sewage water.
Please consult factory for PN25 and antishock device whenever there is waterhammer issue.

Material:

Dimension: