产品型号：SZ43Y SZ63Y SZ83Y产品引用标准： JB/T5198-91管线用钢制平板闸阀 Steel parallel plate valve for pipeline ANSI B16.5a-1992管法兰管件 Pipe flanges and flange pipes GB/T13927-92通用阀门压力试验 Pressure test for universal valves JB/T阀门的检验与试验 Valve inspection and testing JB/T钢制平板闸阀产品阀产品质量分等 Steel parallel plate valve products grades ranks 主要外形尺寸：公称压力Mpa公称通径mm尺寸（mm)LL1HH1D0D1020220226050336534035025033603404207254759005306750500690990525226450366534035025033603404207213754759005306750 公称压力MpA公称通径 mmLL1HH1D0D1D2hL08.865122003252960.3265202652688.8/68.28902302854588.8/95.250025036034042072107.8/136.525452552350.865122003252960.3265202653688.8/68.28002302854588.8/95.252025038034042072107.8/