Seepex BN 5-12 Series, Руководство по эксплуатации и техническому обслуживанию

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KUNKLE SAFETY AND RELIEF PRODUCTS
MODELS 71S, 171, 171P AND 171S
VALVES & CONTROLS
KUKMC-0379-US-1212 Copyright © 2012 Pentair WWW.PENTAIR.COM/VALVES
Non-code Liquid Relief Valve
Technical data
Pressure and Temperature Limits
Model 71S:
1 to 250 psig
-20° to 406°F
Models 171, 171P, 171S:
1 to 400 psig
-20° to 550°F
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.
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.
Model descriptions
Model 71S : Cast iron body with SS seat and
disc. Pressure-tight hood.
Model 171: Carbon Steel (CS) with SS seat
and disc. Pressure-tight hood.
Model 171P: Same as model 171 with
packed lift lever.
Model 171S: All 316 SS construction
including spring. Available with
pressure-tight hood or packed lift lever.
Features
• Suitable for back pressure to
50 psig. 1
• Seats lapped for optimum performance.
• Ball pivot between disc and spring
corrects misalignment and compensates
for spring side thrust.
• Stainless Steel (SS) springs.
• Each Kunkle valve is tested and inspected
for pressure setting and leakage.
Model 171