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  • Cat Pumps Cat Pumps 7145 Brass Thermal Valve 165 degrees 1/2"

Cat Pumps 7145 Brass Thermal Valve 165 degrees 1/2"

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A thermal relief valve that prevents excessive heat buildup in closed loop by-pass systems. Endures a maximum temperature of 165 degrees. Prevents premature seal and cup failure.

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Brass 1/2" Thermal Valve

The CAT Pumps 7177 Thermal Valve is designed to eliminate heat build-up in closed loop pumping systems. The valve is mounted in the bypass line of the pressure regulating device when the by-pass liquid is being recirculated to the inlet of the pump. This is a cost-effective way to protect pumps from excessive heat.


  • Maximum Flow Rate: 25 GPM (95 liters per minute)
  • Maximum Pressure: 125 PSI
  • Inlet Port Size: 1/2" male NPT
  • Discharge Port Size: 1/2" male NPT
  • Material: Brass
  • Maximum Temperature: 190° Fahrenheit


  • Protects pump from premature failure of seals and cups by eliminating heat buildup in closed loop by-
  • pass systems.
  • Automatically seats during unloader/regulator pressure spikes to prevent liquid bleed.
  • Temperature protection without interruption in flow.
  • Compatible with systems using either unloader or regulator valves.
  • Mount multiple Thermo Valves in-line to handle increased system flow.
  • Optional bypass hose with Thermo Valve for quick, compact installation.