USED KUNKLE 171S-D01-M6

THIS ITEM IS NEW OLD STOCK.  NEW.  UNTESTED.  SEE ALL PHOTOS FOR FULL CONDITION.  3/4″ RELIEF VALVE.  40 PSI.  13 GPM.
The Kunkle 171S-D01-M6 Stainless 3/4″ Relief Valve is a heavy-duty, industrial-grade pressure relief valve designed to protect fluid systems from overpressure conditions. Constructed from high-quality 316 stainless steel, this valve offers excellent corrosion resistance, making it ideal for use with harsh or corrosive media such as chemicals, acids, and ammonia. It operates by automatically opening at a preset pressure to relieve excess pressure and then resealing once normal operating conditions are restored, helping to safeguard pumps, tanks, piping, and hydraulic systems.
Engineered for reliability, the 171S series features precision-lapped seats for tight sealing and a ball-bearing pivot design that helps correct misalignment and reduce wear, ensuring consistent performance over time. With a typical pressure range up to 400 PSIG and wide temperature tolerance, this valve is commonly used in industrial processing, chemical plants, water treatment systems, and sanitary applications where durable stainless steel construction is required.
 
Key Features:
3/4″ stainless steel pressure relief valve
Heavy-duty 316 stainless steel construction
Designed for overpressure protection
Precision-lapped seat for tight sealing
Handles corrosive fluids and harsh environments
Reliable automatic pressure release and reseal
Specifications:
Brand: Kunkle
Model: 171S-D01-M6
Size: 3/4″ inlet x 3/4″ outlet
Material: Stainless Steel (316)
Pressure Range: Up to 400 PSIG (varies by setpoint)
Temperature Range: Approx. -20°F to 550°F
Type: Liquid Relief Valve
Applications:
Chemical processing systems
Industrial fluid and hydraulic systems
Pumps, tanks, and piping protection
Water treatment facilities
Corrosive and sanitary fluid applications

Weight: 10 lbs
Dimensions: 13 × 7 × 8 in