Boiler Plant Service Valves

These special small forged blowoff valves are available in bolted bonnet angle and streamlined flow 45° inclined designs for Class 600 and 1500 primary service and in bonnetless angle and inclined designs for Class 2500.

  • Complies to ASME B16.34 standards.
  • CoCr alloy seats and fully-guided CoCr alloy discs resist the excessive corrosion and erosion effects aggravated by grid and boiler scale particles and high temperature changes.
  • Velan boiler blowoff valves meet all applicable specifications of the ASME boiler code, U.S. military standards (listed on qualified product list), U.S. Coast Guard, American Bureau of Shipping and Lloyd’s.

Description

Size Range(s)

  • NPS 1/2 – 2
  • (DN 15 – 50)

Pressure Rating

  • ASME Classes 600 – 1500

Standard Connections

  • Flanged, Socket Weld

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