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Pressure Relief Valves

187 TRI

This miniature thermal relief valve is only .187” in diameter and 1” in length. This valve has been optimized for relieving the small flows caused by thermal expansion of a trapped volume of fluid. Minimum cracking pressures are available from 3,500 thru 4,500 psid. Comes with an intergral 15 micron filter.

Key Product Facts
  • Weighs only 2.6 grams
  • Optimized for Small Flows from Thermal Expansion
  • Rated for Operating Pressure up to 4,000 psi
Part Numbers
PRTA1871350D, PRTA1871420D

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From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.