This product is in accordance with ANSI/AWWA C509-94 «Resilient-seated Gate Valves for Water Supply Service».2. Tests are in accordance with GB/T13927-1992«Pressure Testing for General Purpose Valves».3. Side flange connection is in accordance with the regulation for PN1.0MPa, PN1.6MPa, given in GB/T17241.6-1998«Intergral Cast Iron Pipe Flanges».4. Face to face dimensions are in accordance with the regulation for short body series gate valves given in GB/T1221-1989«metal Valves for use in Flanged Pipe Systems-Face-to-Face and Center-to-Face Dimensions» and the regulation for 125 pound grade given in ANSI B 16.10«Face-to-Face and End-to-End Dimensions of Valves».5. Side flange connection dimensions of DN65(21/2")~300(12") are accordance in with the regulation for grade 125 pound given in ANSI/ASME B 16.1 «Cast Iron Pipe Flanges and Flanged Fittings».
Gate valve