Kunkle Relief Valve Model 900: 910, 911, 917, 920,921,927
Applications: Air/gas compressors, intercoolers, aftercoolers. Liquid filled pressure vessels/systems, ASME Section VIII (UV).
Vacuum systems including pumps, tanks and equipment.
Pressure vessels - containing gas, air, liquid or steam, including tanks and receivers.
Oil/gas separators.
Overpressure relief and protection of pumps, tanks, lines and hydraulic systems.
Bypass relief or pressure regulation.
All SS Model 911 may be suitable for sanitary/edible applications.
Process and industrial corrosive applications.
Models 910, 911, 916 and 917: ASME Section VIII, Air/Gas/Steam/Liquid, “UV” National Board certified.
Models 920, 921 and 927: ASME Section I Special use or application, “V” National Board certified. Also available for vacuum service. PED certified for non-hazardous gas. Not for use with oxidizing fluids.
Model Descriptions
Model 910: Carbon Steel (CS) body and bonnet with Stainless Steel (SS) trim.
Model 911: All SS construction.
Model 916: Same as model 910 resilient seat/seals. Superior “leak-free” performance.
Model 917: Same as model 911 except resilient seat/seals. Superior “leak-free” performance.
Model 920: Steel body and bonnet with screwed cap and stainless steel spring for organic fluid vaporizers (ASME Section I -“V” Special Use or application).
Model 921: Steel body and bonnet with plain lift lever and stainless steel spring for forced flow steam generators (ASME Section I - “V” Special Use or application).
Model 927: Steel body and bonnet with packed lift lever and SS spring for high temperature/pressure hot water boilers (ASME Section I - “V” Special Use or application).
Features & Benefits:
- Available with soft seats.
- Threaded cap standard (back pressure tight). Maximum back pressure 50 psig [3.4 barg]*.
- Hex on valve nozzle provides for easy installation.
- Warn ring offers easy adjustability.
- Pivoting disc design offers exceptional seat alignment.
- Guide to nozzle ratio reduces friction.
- Valve bodies are heavy duty casting.
- Full nozzle design for optimum flow performance.
- Threaded side outlet for piped off discharge to eliminate fugitive emissions.
- Each Kunkle valve is tested and inspected for pressure setting and leakage
