Bailey Birkett SRV-DN25-5BAR Bronze safety relief valve with flanged inlet, PN16 rated. Factory set at 5 bar opening pressure. Spring-loaded with adjustable blowdown. Deployed in process, utility and marine piping loops for on-off shutoff, control, safety relief or diversion service. IV, Module B+D), ASME VIII UV Stamp, API 526, API 527, DNV, LR, ABS, BV, ClassNK; Standards: ASME VIII, API 526, API 527, EN 1092-1; Approvals: DNV, ABS, BV, LR; HS code: 8481.40.