Well Service

Well Service Air Valves are a member of the Air/Vacuum family and are used with vertical pumps. Well Service Valves are specifically designed to vent the air from the pump column during pump start-up in a controlled manner before the check valve opens to reduce pressure surges that result from the accelerating water column.

SIZE

PRESSURE

Material

1/2″ – 12″

150 psig (1000 kPa)

ASTM A126 Class B cast iron

Benefits and features

Unconditionally guaranteed 316 stainless steel floats
Inlets and outlets are equal to full nominal pipe area
Dual Port Throttling Device
Adjustable discharge outlet provides regulated air exhaust
Allows air to enter the system on pump shut down through an unrestricted independent vacuum port
Regulated-Exhaust Device
Restrictor disc provides regulated exhaust to limit pump column surges
Ability to adjust air exhaust for greater surge suppression
Provides full vacuum flow port