12. TESTING
1 Floating ball, gate, globe, needle and piston check valves, shall be pressure tested in accordance with BS6755 Part 1, leakage rate ‘A’ (i.e. zero) unless specified
otherwise in the data sheet.
2 Trunnion mounted ball, butterfly, swing check and dual plate wafer check valves,
shall be pressure tested in accordance with API 598. Butterfly valves 14”NPS and
larger shall also be subjected to a disk strength test in accordance with BS5155.
3 Where stated on the valve data sheet, fire type-testing shall be in accordance with BS6755 Part 2, API 6FA or API 607 as applicable. All valves offered shall be
qualified by applicable fire test certification, details of which shall be available for Purchaser review, if requested.