CJ/T 196-2004 Film fast sludge-drainage valve

GB/T 13932-1992 General purpose industrial valves—Cast iron swing check valves GB/T 1047-1995 Nominal size for pipe components GB/T 1047-2005 Pipework components—Definition and selection of DN (nominal size) GB/T 1047-2019 Pipework components—Definition and selection of nominal size GB/T 1048-1990 Nominal pressure for pipe components GB/T 1048-2005 Pipework components—Definition and selection of PN GB/T 1048-2019 Pipework components—Definition and selection of nominal pressure GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 12225-1989 General purpose industrial valves—Specification of copper alloy castings GB/T 12225-2005 General purpose industrial valves—Specification of copper alloy castings GB/T 12225-2018 General purpose industrial valves—Specification of copper alloy castings GB/T 12226-1989 General purpose industrial valves—Specification of flake graphite iron castings GB/T 12226-2005 General purpose industrial valves—Specification of flake graphite iron castings GB/T 12227-1989 General purpose industrial valves—Specification of spheroidal graphite iron castings GB/T 12227-2005 General purpose industrial valves—Specification of spheroidal graphite iron castings GB/T 12229-1989 General purpose industrial valves—Specification of carbon steel castings GB/T 12229-2005 General purpose industrial valves—Specification of carbon steel castings GB/T 12834-2001 Rubber,vulcanized—Preferred gradations of properties GB/T 13927-1992 Pressure testing for general purpose valves GB/T 13927-2008 Industrial valves—Pressure testing GB/T 13927-2022 Industrial valves—Pressure testing GB/T 17241.6-1998 Integral cast iron pipe flanges GB/T 17241.6-2008 Integral cast iron flanges GB/T 17241.7-1998 Specifications for cast iron pipe flanges JB/T 5300-2008 Guidelines for selecting materials for industrial valves JB/T 7927-2014 The appearance quality requirements for valve cast steel components JB/T 7928-2014 Industrial Valve Supply Requirements JB/T 5300-1991 JBT 5300-1991 General valve materials JB/T 5300-2024 Industrial valve material selection guideline JB/T 7927-1999 The appearance quality requirements for valve cast steel parts JB/T 7928-1999 JBT 7928-1999 General valve Supply requirements JB/T 308-2004 Valves model designation method HG/T 3090-1987 General rules of visual quality for moulded and extruded rubber products GB/T 12226-2025 General purpose industrial valves—Technical specification for gray iron castings GB/T 12227-2025 General purpose industrial valves—Technical specification for ductile iron castings GB/T 12229-2025 General purpose industrial valves—Technical specification for carbon steel castings