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Model 171S

Model 171S

Pressure Limit:1 to 400 psig
Temperature Limit:-20° to 550° F


  • Overpressure relief and protection of pumps, tanks, lines and hydraulic systems.
  • Acid, caustic, ammonia and other corrosive liquids requiring iron, steel or SS materials.
  • Pressure regulation.
  • By-pass relief.
  • Model 171S is all 316 SS potentially suitable for sanitary applications depending on requirements.

All 316 SS construction including spring. Available with pressure-tight hood or packed lift lever.