Sewage Air/Vacuum Valves

Sewage air/vacuum valves automatically exhaust large quantities of air and gases while the pipeline or system is being filled and allow air to re-enter during draining or when a negative pressure exists. Once the pipeline is filled, the float rises to close the valve and stays closed until system pressure is completely removed.

Sewage air/vacuum valves should be installed both at the sewage pump discharge and at system highpoints where air and sewage gasses would naturally rise during filling and/or at locations where vacuum and column separation would first occur during draining.

Note: Use an air/release valve to remove gasses and air that may accumulate in the line while it is in operation under pressure. Combination sewage air release and air/vacuum valves are also available.

 

Cast iron A 126 Class B bodies rated for 150 psi have stainless steel internals and renewable rubber seats. 1/2" and 1" pipe plugs are located at the top and bottom of the housing respectively for connecting hose for flushing.

Sewage air valves equipped with a flushing attachment come with bronze shut-off valves, quick-connect couplings and 5' of rubber hose for backwashing with clear water. This option is recommended when heavy amounts of grease and solids are anticipated.

Sewage air/vacuum valves may have oversized inlets to prevent plugging, i.e. a 2" x 1" valve is a 1" valve with an oversize 2" connection. Outlet pipe size determines capacity.

 
Outlet Size FNPT
Filling Rate
GPM @ 1 & 15 psi
Draining Capacity
SCFM @ 2" Hg & 10" Hg Vac
1"
550 / 1130
78.5 / 304
2"
2,200 / 4,500
314 / 1,217
3"
4,950 / 10,100
707 / 2,740
 

PURCHASE SEWAGE AIR/VACUUM VALVES

ITEM NUMBER DESCRIPTION PRICE

QTY VGA10159

Without Flush Kit, FNPT InxOut: 2x1, Dimensions HxD (max): 20-1/2"x6-1/2", LBS: 60
$474.75

QTY VGA10160

Without Flush Kit, FNPT InxOut: 2x2, Dimensions HxD (max): 20-1/2"x6-1/2", LBS: 60
$961.91

QTY VGA10161

Without Flush Kit, FNPT InxOut: 3x2, Dimensions HxD (max): 20-1/2"x6-1/2", LBS: 60
$1004.90

QTY VGA10162

Without Flush Kit, FNPT InxOut: 3x3, Dimensions HxD (max): 23-1/2"x9-1/2", LBS: 170
$1133.85

QTY VGA10163

With Flush Kit, FNPT InxOut: 2x1, Dimensions HxD (max): 20-1/2"x6-1/2", LBS: 60
$742.21

QTY VGA10164

With Flush Kit, FNPT InxOut: 2x2, Dimensions HxD (max): 20-1/2"x6-1/2", LBS: 60
$1229.37

QTY VGA10165

With Flush Kit, FNPT InxOut: 3x2, Dimensions HxD (max): 20-1/2"x6-1/2", LBS: 60
$1519.76

QTY VGA10166

With Flush Kit, FNPT InxOut: 3x3, Dimensions HxD (max): 23-1/2"x9-1/2", LBS: 170
$1648.72