GB/T 20801.3-2006 Pressure piping code—Industrial piping—Part 3:Design and calculation

GB/T 20801.1-2006 Pressure piping code—Industrial piping—Part 1:General GB/T 20801.2-2006 Pressure piping code—Industrial piping—Part 2:Materials GB/T 20801.4-2006 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly GB/T 20801.5-2006 Pressure piping code—Industrial piping—Part 5:Inspection and testing GB/T 20801.6-2006 Pressure piping code—Industrial piping—Part 6:Safeguarding

GB/T 20801.3-2020 Pressure piping code—Industrial piping—Part 3:Design and calculation

GB/T 13295-2003 Ductile iron pipes,fittings and accessories for water or gas applications GB/T 13401-2005 Steel plate butt-welding pipe fittings GB/T 13402-1992 Large-diameter carbon steel pipe flanges GB/T 13403-1992 Gaskets for large-diameter cabon steel pipe flanges GB/T 13927-1992 Pressure testing for general purpose valves GB/T 13932-1992 General purpose industrial valves—Cast iron swing check valves GB/T 14383-1993 Forged steel socket welding pipe fittings GB/T 14626-1993 Forged steel threaded pipe fittings GB/T 15185-1994 Cast iron and copper alloy ball valves GB/T 17116.1-1997 Pipe supports and hangers—Part 1:Technical specification GB/T 17116.2-1997 Pipe supports and hangers—Part 2:Pipe attachments GB/T 17116.3-1997 Pipe supports and hangers—Part 3:Middle connection attachments and building structure attachments GB/T 17185-1997 Steel pipe fittings for flanged joint GB/T 17241-1998 GB/T 17395-1998 Dimensions、shapes、masses and tolerances of seamless steel tubes GB/T 18615-2002 Non-alloyed and stainless steel fittings for corrugated flexible metallic hoses GB/T 19326-2003 Forged branch outlet fittings—Socket welding, threaded and butt-welding ends GB/T 20801.1-2006 Pressure piping code—Industrial piping—Part 1:General GB/T 20801.2-2006 Pressure piping code—Industrial piping—Part 2:Materials GB/T 20801.4-2006 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly GB/T 20801.5-2006 Pressure piping code—Industrial piping—Part 5:Inspection and testing HG/T 3651-1999 Unalloyed titanium and titanium alloy butt-welding seamless pipe fittings HG/T 20553-1993 Selection series of seamless and welded steel pipes for chemical piping applications HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20592～20604 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20615～20625 HG 20605 HG 20606 HG 20607 HG 20608 HG 20609 HG 20610 HG 20611 HG 20612 HG 20613 HG 20626 HG 20627 HG 20628 HG 20629 HG 20630 HG 20631 HG 20632 HG 20633 HG 20634 HG/T 21547-1993 Piping plugs, spacer rings, and 8-shaped blind plates made of steel for use in pipelines JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB/T 2768～2778-1992 JB 4708-2000 JB 4732-1995 JB/T 6439-1992 The valve is subjected to magnetic particle inspection of the pressure die-cast steel parts JB/T 6440-1992 The valve is subjected to radiographic inspection of the pressure die-cast steel parts JB/T 6899-1993 Fire-resistant Test for Valves JB/T 6899-1993 JB/T 6902-1993 JB/T 7747-1995 Needle-shaped stop valve JB/T 7927-1999 The appearance quality requirements for valve cast steel parts JB/T 8527-1997 Metal Sealing Butterfly Valve JB/T 8937-1999 Check valve with clamp mount JB/T 9092-1999 Valve inspection and testing