供应伞齿轮平板闸阀

有导流孔平板闸阀（单闸板，双闸板）
Hand-wheel driving parallel plate gate valve with diversion hole
SZ43NF、SZ43DF、SZ43YF、SZ43F、SZ43D、SZ43Y、SZ43H、SZ43W
SZ44NF、SZ44DF、SZ44YF、SZ44F、SZ44D、SZ44Y、SZ44H、SZ44W
抗硫阀门型号前加“K”，调节型阀门型号前加“L”**型F后加“M”
产品标准
API 6D 管道阀门 Pipeline valve
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 
JB/T79.1～79.2 管体铸钢管法兰 Whole cast steel flange
GB/T13927-92通用阀门压力试验 Pressure test for universal valves 
JB/T9092-1999阀门的检验与试验 Valve inspection and testing 
JB/TQ814-89钢制平板闸阀产品阀产品质量分等 Steel parallel plate valve products quality grades ranks