PVC Pressure Relief Valves

26 Results
VALVES -- DG-050-PVC
from Blacoh Fluid Control, Inc.

1/2" PVC, AUTOMATIC DEGASSING VALVE, NPT [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: Threaded; FNPT
3-Way Bypass PTFE Diaphragm Valve -- TRVDT
from Plast-O-Matic Valves, Inc.

Series TRVDT is a high flow relief/by-pass valve with 3-port design, ideal for applications where minimal footprint is required or where use of a piping tee is impractical. Valve has a straight-through flow pattern when closed. When set point is exceeded, the diaphragm is lifted off the center port,... [See More]

  • Primary Material: PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature)
  • Maximum Pressure: 150.00
  • Valve Size: 0.50 to 1.00
  • Connection Description: Threaded; 1/2" NPT - 1" NPT
VALVES -- DG-050-PVC-U
from Blacoh Fluid Control, Inc.

1/2" PVC, AUTOMATIC DEGASSING VALVE, UNION [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: UNION
Angle Pressure Relief Valve -- RVT
from Plast-O-Matic Valves, Inc.

Series RVT/RVTX is a high capacity angle pattern valve for relief, bypass, backpressure and pump backpressure applications with excellent corrosion resistance. 1/2 ″ – 2 ″ sizes in most popular thermoplastic materials and connections; 5 – 125 PSI set range. 3 ″ size... [See More]

  • Primary Material: PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature)
  • Maximum Pressure: 5.00 to 150.00
  • Valve Size: 0.25 to 2.00
  • Connection Description: Threaded; 1/4" NPT or BSP - 2" NPT or BSP
VALVES -- PR-025-PVC-E
from Blacoh Fluid Control, Inc.

1/4" PVC PRESSURE RELIEF VALVE, EPDM, NPT, MINI [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.25
  • Connection Description: Threaded; FNPT
In-Line Pressure Relief Valve -- RVDT
from Plast-O-Matic Valves, Inc.

Series RVDT/RVDTM is a universal automatic backpressure control valve for pressure relief, pump backpressure, pump bypass, anti-siphon, and backpressure regulator applications. Thermoplastic or Metal Valves designed for smooth, sensitive operation and the ultimate in corrosion resistance or... [See More]

  • Primary Material: PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature)
  • Maximum Pressure: 5.00 to 150.00
  • Valve Size: 0.25 to 2.00
  • Connection Description: Threaded; 1/4" NPT - 2" NPT
VALVES -- PR-049-PVC-E-F
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE, EPDM, 150# FLANGE, MINI [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: FLANGE, US, 150# CLASS
In-Line Rolling Diaphragm Relief Valve -- RVDM
from Plast-O-Matic Valves, Inc.

Series RVDM features a primary rolling diaphragm and a secondary flat diaphragm which incorporates the Plast-O-Matic patented Fail-Dry design for added protection. The rolling diaphragm provides greater sensitivity than non-diaphragm style relief valves, and is ideal for all applications without... [See More]

  • Primary Material: PVC; CPVC (optional feature); PP (optional feature); PVDF (optional feature)
  • Maximum Pressure: 5.00 to 150.00
  • Valve Size: 0.50 to 1.00
  • Connection Description: Threaded; 1/2" NPT or BSP - 1" NPT or BSP
VALVES -- PR-049-PVC-E-U
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE, EPDM, UNION, MINI [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: UNION
PVC Pressure Relief Valve -- RVD
from Plast-O-Matic Valves, Inc.

Series RVD rugged compact designed for use as back pressure valve, straight relief, by-pass relief or back pressure regulator. 1/4 ″ and 1/2 ″ sizes in most popular thermoplastic materials and connections; 5 – 150 PSI set range. [See More]

  • Primary Material: PVC; PTFE (optional feature); PP (optional feature); PVDF (optional feature)
  • Maximum Pressure: 5.00 to 150.00
  • Valve Size: 0.25 to 0.50
  • Connection Description: Threaded; 1/4" NPT or BSP - 1/2" NPT or BSP
VALVES -- PR-050-PVC-E
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE, EPDM, NPT [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: Threaded; FNPT
VALVES -- PR-050-PVC-E-F
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE, EPDM, 150# FLANGE [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: FLANGE, US, 150# CLASS
VALVES -- PR-050-PVC-E-U
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE, EPDM, UNION [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: UNION
VALVES -- PR2P-049-PVC-E-F
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE 2 PORT, EPDM, 150# FLANGE, MINI [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: FLANGE, US, 150# CLASS
VALVES -- PR2P-050-PVC-E-U
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE 2 PORT, EPDM, UNION [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: UNION
VALVES -- PR90-049-PVC-E-U
from Blacoh Fluid Control, Inc.

1/2" PVC PRESSURE RELIEF VALVE RIGHT ANGLE 90, EPDM, UNION, MINI [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Connection Description: UNION
Diaphragm Back Pressure Valves -- RPV Series
from Hayward Flow Control

All Thermoplastic diaphragm Pressure Relief Valve for protecting against over-pressure in Chemical Feed Systems. All valves are preset at 50 psi, however they are field adjustable via the adjustment screw. [See More]

  • Primary Material: PVC; CPVC; PP; PVDF, Noryl
  • Maximum Pressure: 10.00 to 150.00
  • Valve Size: 0.25 to 2.00
  • Connection Description: Threaded
Pressure Relief Valves -- 22091
from U.S. Plastic Corporation

It can be present to open any desired pressure between 5-75 PSI. If line pressure does not reach the set relief pressure, the valve remains closed. When the pressure exceeds the relief value, the valve opens and diverts the flow. It remains open until the pressure drops back to the desired value,... [See More]

  • Primary Material: PVC
  • Valve Size: 0.50
Anti-Siphon/Back Pressure Valve -- E90422
from Iwaki America and Walchem, IWAKI America Inc

Walchem diaphragm back pressure valves are used to enhance the performance of chemical feed pumps and systems by providing a constant discharge head pressure. These valves also function as an antisyphon valve. The diaphragm is held against the seat by the internal spring. Back pressure is adjustable... [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 1.00
  • Controlled Pressure Range: 0.00 to 150.00
Wide-Range PVC Relief Valve, 1/2" NPT(F) -- GO-01350-62
from Cole-Parmer

Valves with connections of 1/4" or 1/2" have a diaphragm made of Viton <reg > and withstand a maximum inlet pressure of 210 psig. All other valves have a PTFE shaft design and withstand a maximum inlet pressure of 140 psig. The shaft design prevents emergency shutdown with a three-seal system... [See More]

  • Primary Material: PVC
Flange Insert Valve -- 0.5" FIV
from Check-All Valve Mfg. Co.

Flange Insert valves are the ultimate check valves in flanged systems. They provide the simplest most economical way to install check valves in a piping system, the valve body automatically positions the valve and holds it in place while bolts are being installed and tightened. All that is required... [See More]

  • Primary Material: Aluminum (optional feature); Brass / Bronze; Stainless Steel; Steel; Exotic Metal; PVC; PTFE; FEP Encapsulator
  • Connection Description: BoltFlange; Face Seal (optional feature); 1-3/8" O.D. Flange
  • Valve Size: 0.50
  • Actuation: Pressure
Diaphragm Pressure Relief Valves -- PBV Series
from Hayward Flow Control

All thermoplastic diaphragm Back Pressure Valve for chemical feed systems, applies back pressure to a metering pump to prevent siphoning and eliminates varying dosage rates resulting from fluctuating downstream pressure. All valves are preset for 50 psi, but are field adjustable via the adjustment... [See More]

  • Primary Material: PVC; CPVC; PP; PVDF, Noryl
  • Maximum Pressure: 10.00 to 150.00
  • Valve Size: 0.25 to 2.00
  • Connection Description: Threaded
Multi-Function Valve -- E90362
from Iwaki America and Walchem, IWAKI America Inc

The MultiFunction Valve is an accessory to the Walchem family of metering pumps. It is specifically designed to be mounted and used with the E Series electronic metering pumps. The MultiFunction Valve combines the air vent and bleed capabilities of the manual air vent valve with anti-siphon, back... [See More]

  • Primary Material: PVC
  • Connection Description: Tube Fitting; 3/8" OD x 1/4" ID Tubing
  • Valve Size: 0.25
  • Actuation: Pneumatic
Manual Flow Control Pressure Regulator Valves -- PR Series
from Hayward Flow Control

Pressure Regulator valves are available in PVC and Corzan CPVC. Seals are FPM only. End connections are threaded only. Pressure Regulator valves can be set from 5 - 75 PSI. Minimum charges for setting pressures exist. All valves are assembled with silicone free lubricant. Features. PVC or Corzan... [See More]

  • Primary Material: PVC; CPVC; Corzan
  • Maximum Pressure: 150.00
  • Valve Size: 0.25 to 1.50
  • Connection Description: Threaded
Tri-Purpose Valve -- 8011-C
from Iwaki America and Walchem, IWAKI America Inc

Anti-Syphon Valve. Enables feeding into suction/negative pressure applications or metering fluids “downhill ”. Back Pressure Valve. Provides accurate metering of fluids into low or open discharge pressures. Pressure Relief Valve. Adjustable between 30 psi and 125 psi [See More]

  • Primary Material: PVC
  • Maximum Pressure: 150.00
  • Valve Size: 0.50
  • Controlled Pressure Range: 30.00 to 125.00
Manual Flow Control Pressure Regulator Valves -- PR Series
from Hayward Flow Control

Hayward RV Series pressure relief valves protect piping system components from damage due to overpressurization. [See More]

  • Primary Material: PVC
  • Actuation: Manual
  • Connection Description: Threaded; Socket Weld