Kunkle Safety Relief Valve 171/171S - Fast & Free Shipping!
KUNKLE MODELS 171/171S LIQUID RELIEF VALVES SAFETY AND RELIEF PRODUCTS Extra heavy, rugged construction non-code liquid relief valves with a variety of model options to meet specific applications.
Features: • Suitable for back pressure to 50 psi (3.45 bar). • Seats lapped for optimum performance. • Spherical pivot between disc and spring corrects misalignment and compensates for spring side thrust. • Stainless steel springs. • Tested and inspected for pressure setting and leakage. • All SS 316 model 171S suitable for sanitary applications, depending on requirements. NOTE 1. Back pressure increases set pressure on a one to one basis, and reduces capacity. Back pressure in excess of 10% of set pressure is not recommended.
Suitable for overpressure relief, pressure regulation, by-pass relief and protection of pumps, tanks, lines and hydraulic systems containing acid, caustic, ammonia and other corrosive liquids requiring iron, steel or SS materials.
Connections: FNPT Temperature range: Models 171, 171P, 171S: -20°F to 550°F (-29°C to 288°C) Pressure range: Models 171, 171P, 171S: 1 to 400 psi (.07 to 27.6 barg)
Model 171: carbon steel with SS seat and disc. Pressure-tight hood. Model 171P: as model 171 with packed lift lever. Model 171S: all 316 SS construction including spring. Available with pressure-tight hood or packed lift lever.
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