- 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
Designed for use as a relief valve on first stage regulators that comply with the NFPA 58 22.214.171.124 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.