Back Pressure and Pressure Relief Valves

Back Pressure valves provide positive back pressure for systems with less than the minimum required pressure difference between the discharge and suction side of the metering pump to assure best metering performance. Select to match the pumps' discharge connection size. In installations where the injection point is lower than the level of chemical in the supply tank the potential for gravity feeding of chemical is a possible concern. Back Pressure valves prevent this from occurring and can be easily added to most chemical feed pumps.

106 Products

AFM-19-A
A&F Machine 3/8 inch NPT 0-100 PSI Polyethylene Anti-Syphon Valve
$182.75 $215.00

New

AFM-36P-A
A&F Machine 1/2 inch NPT 0-100 PSI Polyethylene Anti-Syphon Valve
$340.00 $400.00

New

GVI-BPG050S
Griffco Back Pressure Valve (10 to 150 PSI, 316SS, 1/2" NPT)
$625.50 $695.00

New

GVI-BPG155PPF
Griffco Back Pressure Valve (10 to 150 PSI, PP, 1-1/2" Flange)
$1,358.30 $1,598.00

New

GVI-BPG155S2OSS
Griffco Back Pressure Valve (10 to 250 PSI, 316 SS, 1-1/2" NPT, 316 SS Top)
$2,976.70 $3,502.00

New

GVI-BPG200CP
Griffco Back Pressure Valve (10 to 150 PSI, CPVC, 2" NPT)
$1,501.95 $1,767.00

New

GVI-BPG200P
Griffco Back Pressure Valve (10 to 150 PSI, PVC, 2" NPT)
$1,080.90 $1,201.00

New

GVI-BPM025S
Griffco Back Pressure Valve (10 to 150 PSI, 316 SS, 1/4" NPT)
$481.50 $535.00

New

GVI-BPM050CP
Griffco Back Pressure Valve (10 to 150 PSI, CPVC, 1/2" NPT)
$324.00 $360.00

New

GVI-BPM050K
Griffco Back Pressure Valve (10 to 150 PSI, PVDF, 1/2" NPT)
$542.70 $603.00

New

GVI-BPM050P
Griffco Back Pressure Valve (10 to 150 PSI, PVC, 1/2" NPT)
$180.00 $200.00

New

GVI-BPM050P1AR
Griffco Back Pressure Valve (0 to 50 PSI, PVC, 1/2" NPT, with Priming Valve)
$242.10 $269.00

New

GVI-BPM050PP
Griffco Back Pressure Valve (10 to 150 PSI, PP, 1/2" NPT)
$186.30 $207.00

New

GVI-BPM050PS
Griffco Back Pressure Valve (10 to 150 PSI, PVC, 1/2" Socket)
$180.00 $200.00

New

GVI-BPM050S
Griffco Back Pressure Valve (10 to 150 PSI, 316SS, 1/2" NPT)
$532.80 $592.00

New

GVI-PRG100KF
Griffco Pressure Relief Valve, 1", PVDF, 10-150 psi, Flange Connection
$1,830.05 $2,153.00

New

GVI-PRG155CPF90
Griffco 2-Port Pressure Relief Valve, 1-1/2", CPVC, 10-150 psi, Flange Connection, 90 Degree (each)
$1,512.90 $1,681.00

New

GVI-PRG155PF90
Griffco 2-Port Pressure Relief Valve, 1-1/2", PVC, 10-150 psi, Flange Connection, 90 Degree (each)
$993.60 $1,104.00

New

GVI-PRG200P
Griffco 2-Port Pressure Relief Valve (10 to 150 PSI, PVC, 2" NPT)
$1,080.90 $1,201.00

New

GVI-PRG2050PF90
Griffco 2-Port Pressure Relief Valve, 1/2", PVC, 10-150 psi, Flange Connection, 90 Degree (each)
$345.60 $384.00

New

GVI-PRM038S2
Griffco Pressure Relief Valve (10 to 250 PSI, 316 SS, 3/8" NPT)
$500.40 $556.00

New

GVI-PRM050K
Griffco Pressure Relief Valve (10 to 150 PSI, PVDF, 1/2" NPT)
$555.30 $617.00

New

GVI-PRM050P
Griffco Pressure Relief Valve (10 to 150 PSI, PVC, 1/2" NPT)
$189.90 $211.00

New

GVI-PRM050P2
Griffco Pressure Relief Valve (10 to 250 PSI, PVC, 1/2" NPT)
$189.90 $211.00

New

Select up to 4 items to compare.
Select up to 4 items to compare.