Safety Valves

KNG89 ASME Code Safety Relief Valve

KNG89 valves are multiple purpose safety valves for air / gas protection. Designed for durability, yet an economical choice for safety and relief applications. Choose for a variety of applications where mid-level capacity is required. KNG89 the same as Series 88, but with a closed cap. ASME and National Board Certified for Section XIII as well as CRN Certifications. Temperatures -60°F (-51°C) to 406°F (208°C), low reduced to -320°F (-196°C) with PTFE option, high increased to 425°F (218°C) with stainless option. Features:
  • Precision lapped metal to metal seating
  • Stainless steel springs
  • Ruggedly constructed
  • Closed seal hex cap or lift lever options
  • Wide variety of inlet and outlet options
  • Disc-guided seat provides quick, accurate and excellent re-seating

Captured Exhaust


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

Pressure Range

15 – 250 PSI

Temperature Range

-20°F to 406°F


Stainless Steel


Air, Gas, Steam


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


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