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Graco 117759 Valve Thermal Relief 1/4

The Graco 117759 Thermal Relief Valve 1/4" protects your airless sprayer from heat-induced overpressure, ensuring safe operation and extended pump life.

  • Pressure Rating: Up to 5000 psi
  • Valve Size: 1/4" (6.35 mm)
  • Material: Stainless steel and high-strength alloys
  • Seal: Fluoroelastomer O-rings, rated up to 400°F
  • Compatible with: Graco Ultra Max II, GMAX, LineLazer, DutyMax & HydraMax

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Graco 117759 Thermal Relief Valve: Protect Your Airless Sprayer

Compatible Machines

  • Graco Ultra Max II Series
  • Graco GMAX Series
  • Graco LineLazer Series
  • Graco DutyMax
  • Graco HydraMax

Product Overview

The Graco 117759 1/4" Thermal Relief Valve ensures safe operation by relieving excess pressure caused by heat, protecting your pump seals and maintaining fluid consistency.

Part Number 117759
Valve Size 1/4" (6.35 mm)
Flow Capacity Up to 2 GPM at relief conditions
Pressure Rating Up to 5000 psi
Material Stainless steel & high-strength alloys
Seal Type Fluoroelastomer O-rings, rated up to 400°F

FAQs

It automatically diverts flow when temperature-induced pressure exceeds safe levels, protecting pump seals and maintaining fluid consistency.

It is compatible with high-pressure Graco sprayers like Ultra Max II, GMAX, LineLazer, DutyMax, and HydraMax series.

Periodic inspection of O-rings and spring tension is recommended. Flushing under low-pressure conditions clears debris without disassembly.

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