Safety Valves

KNG563 ASME Code Safety Relief Valve

The KNG563 is a high capacity safety valve used for boilers, piping lines and vessel protection. Designed and engineered for heavy-duty industrial use. ASME and National Board Certified for Section I as well as CE and CRN Certifications. Same as Series 560 except with Stainless Steel wetted trimming (Nozzle and Disc), Set pressure up to 300 PSI (20.7 Bar) Features:
  • Designed for durability
  • 5 orifices – 12 sizes of piping options
  • Top guided seating and discharge
  • Full nozzle, high capacity levels
  • Short, tuned blow-down with dual-ring technology
  • Heavy duty hood and lever mechanism
  • Standard 17-7 stainless steel springs

Captured Exhaust


1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 2 1/2", 3"

Pressure Range

1 – 300 PSI

Temperature Range

-20°F to 425°F


Brass, Stainless Steel




Canadian Registration Number (CRN), CE, National Board/ASME Section I


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