Dual Air Release Valve (Darv)

DUAL’s Air Release Valve offers a tri-functional air valve that not only breaks vacuum, but also reduces surge on pipeline filling and releases air under operating conditions. Dual’s vacuum break valves should be located on the apex of a pipeline to allow air to enter if the pipe ruptures or a scour valve is opened.

FEATURES

  • No blocking or leakage.
  • No sticking of the floats.
  • EPDM 0 Ring for positive seal.
  • The solid float will not deform under pressure.
  • The cylindrical design also increases the effectiveness valve is opened. of the valve’s operation during vacuum conditions.

Document

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