Vapor Relief Valves
3139 Series


Application

Designed for use as a relief valve on first stage regulators that comply with the NFPA 58 5.8.1.9 High-pressure regulators with a rated capacity of more than 500,000 BTU/hr where permitted to be used in two-stage systems shall incorporate an integral pressure relief valve or shall have a separate relief valve.

Features

  • Pop-action design keeps product loss to a minimum.
  • Suitable for use downstream of 1580 series regulators on vapor systems to comply with NFPA 58.
  • Full relief valve capacity when installed in a tee downstream from the regulator outlet.
  • Constructed of non-corosive brass.


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