Models 71S and 171

171

Cast iron body with SS seat and disc. Pressure-tight hood.

Features

  • Suitable for back pressure to 50 psig.
  • Seats lapped for optimum performance.
  • Ball bearing pivot between disc and spring corrects misalignment and compensates for spring side thrust.
  • SS spring.

Model 171

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

Applications

  • 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.

Cast Steel with SS seat and disc. Pressure-tight hood.

KUKMC-71S_171_1.pdf720.84 KB 171

Model 171P

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

Applications

  • 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.

Same as 171 with packed lift lever.

KUKMC-71S_171_3.pdf720.84 KB 171

Model 171S

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

Applications

  • 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.

KUKMC-71S_171_5.pdf720.84 KB 171

Model 71S

Pressure Limit:1 to 250 psig
Temperature Limit:-20° to 406° F

Applications

  • 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.

Cast iron body with SS seat and disc. Pressure-tight hood.

KUKMC-71S_171.pdf720.84 KB 171