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HOLIDAY HOURS: CLOSED DEC 24 (PM), DEC 25-27, DEC 31 (PM) & JAN 1. OPEN DEC 30 & JAN 2.

  • BLACOH SENTINEL Pressure Valves

SENTINEL Back Pressure Valves: Blacoh Back Pressure Valves prevent siphoning and varying rates of dosage from fluctuating downstream pressure by enacting positive discharge pressure in your metering pump system.


SENTINEL Pressure Relief Valves: Blacoh Pressure Relief Valves operate when the system pressure raises above the set pressure of the valve to protect systems from damage due to blockages or excessive pressure situations.


Features and Benefits:

  • CNC precision machined parts
  • Pressure rated to 150 PSI (350 PSI also available)
  • Cost efficient and reliable
  • Variety of materials available (Not all materials are available for all size valves. Contact us for details)
  • Anti-syphon protection
  • Optional air release and pressure gauge port on Back Pressure Valves
  • Optional right-angle, 3-port design on Pressure Relief Valves
BSP connections available for some sizes in some models. Contact us for details.
1 - 18 of 18 | Results Per Page | View | Unit of Measure
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Item #

Item Name

Discharge Pressure

Inlet Size

Add To Cart/Request Quote
N/A Back Pressure Valve NPT or Socket Weld N/A to 150 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Back Pressure Valve ANSI 150# Flange N/A to 150 psi N/A 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2", 3", 4" Request Quote
N/A Back Pressure Valve 90° NPT or Socket Weld N/A to 150 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1" Request Quote
N/A Back Pressure Valve 90° ANSI 150# Flange N/A to 150 psi N/A 1/2" mini, 1/2", 3/4", 1" Request Quote
N/A Back Pressure Valve High Pressure NPT or Socket Weld N/A 50 to 350 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1" Request Quote
N/A Back Pressure Valve High Flow NPT or Socket Weld N/A to 150 psi N/A 1/2", 3/4", 1" Request Quote
N/A Back Pressure Valve with Unibody N/A to 150 psi N/A 1/2", 3/4", 1" Request Quote
N/A Back Pressure Valve Union Connection N/A to 150 psi N/A 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Pressure Relief Valve NPT or Socket Weld N/A to 150 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Pressure Relief Valve ANSI 150# Flange N/A to 150 psi N/A 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2", 3", 4" Request Quote
N/A Pressure Relief Valve 90º NPT or Socket N/A to 150 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Pressure Relief Valve 90º ANSI 150# Flange N/A to 150 psi N/A 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Pressure Relief Valve 2-Port High Flow NPT or Socket N/A to 150 psi N/A 1/2", 3/4", 1" Request Quote
N/A Pressure Relief Valve High Pressure NPT or Socket Weld N/A 50 to 350 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1" Request Quote
N/A Pressure Relief Valve 2-Port NPT or Socket Weld N/A to 150 psi N/A 1/4", 3/8", 1/2" mini, 1/2", 3/4", 1" Request Quote
N/A Pressure Relief Valve 2-Port ANSI 150# Flange N/A to 150 psi N/A 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Pressure Relief Valve Union N/A to 150 psi N/A 1/2" mini, 1/2", 3/4", 1", 1 1/2", 2" Request Quote
N/A Pressure Relief Valve 90º Union N/A to 150 psi N/A 1/2" mini, 1/2", 3/4" 1", 1 1/2", 2" Request Quote
1 - 18 of 18 | Results Per Page | View | Unit of Measure
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