Model C-1 Pressure Operated Relief Valve (PORV) Technical Data Working Pressure:250 psi (17.2 bar) Operation Pressure:5 - 7 bar / 0.3 - 0.5 barListings & Approvals:cULus, FM, VdS, LPC Product Documents and Manuals Technical Data SheetDownload Listings and Approvals ULDownload