Blow-off Valves

Blow Off valvesYarway

Designed for blow-off service in boiler systems with pressures of 3206 psig.

Blow-off service in boiler systems to remove dirt, sediment and scale as well as maintain boiler level surge.

  • Designed according ASME section 1, ASME B31.1, ASME B16.34.
  • For boiler systems up to 3206 psig.
  • Rugged construction to withstand high pressure and high velocities.
  • Excellent resistance to cleaning acids and wear caused by precipitated solids. Seatless valves
  • No Seat
    • will not score or plug with dirt
    • will not leak
  • Live
    • loaded packing
    • will not leak after packing
  • Slow opening
    • will not rapidly drain boiler drum Unit tandem valves
  • Combination of hardseat and seatless valves in a single body
    • eliminates pipe joints
    • reduces potential leaks
    • fits into a confined space Hardseat valves
  • Stellite seat faces
    • resists wear
    • provides long service life

Technical Data

Type:

N/A

Pressure:

Up to 3000 psig

Temperature:

N/A

Size:

NPS 1-2½

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