GB/T 8464-2008 Cast iron and copper valves with screwed connections

GB/T 8464-1998 Valves with female screw ends for water-heating system GB/T 15185-1994 Cast iron and copper alloy ball valves

GB/T 8464-2023 Cast iron,copper and stainless steel valves with screwed connections

GB/T 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications GB/T 13927-2008 Industrial valves—Pressure testing QB/T 3832 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 3287-2000 Malleable cast iron pipe fittings GB/T 3287-2011 Malleable cast iron pipe fittings GB/T 4380-2004 Assessment of departure from roundness—Two-and three-point methods GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 9440-1988 Malleable iron castings GB/T 9440-2010 Malleable iron castings GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 12221-1989 Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions GB/T 12221-2005 Metal valves—Face to face,end to end,center to face and center to end dimensions 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 12716-2002 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on the threads GB/T 12716-2011 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads GB/T 15117-1994 Copper alloy die castings GB/T 15530.8-1995 Specifications for copper alloy and composite flanges GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 17241.7-1998 Specifications for cast iron pipe flanges GB/T 20078-2006 Copper and copper alloys—Forgings GB/T 20078-2023 Copper and copper alloys—Forgings JB/T 5300-2008 Guidelines for selecting materials for industrial valves 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 7928-1999 JBT 7928-1999 General valve Supply requirements GB/T 3287-2024 Malleable cast iron pipe fittings QB/T 3826-1999 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products Neutral salt spraying test(NSS) GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system GB/T 12221-2025 Metal valves—Face to face,end to end,centre to face and centre to end dimensions 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