1 GB / T8464-1998 Valves for connection of plumbing 2 GB / T12220-1989 Generic valve designation 3 GB / T12221-1989 Flanged metal valve construction Length 4 GB / T12222-1989 Connection of multi-turn valve actuators 5 GB / T12223-1989 Partially rotary valve actuator connection 6 GB / T12224-1989 General requirements for steel valves 7 GB / T12225-1989 General purpose valve copper alloy castings technical conditions 8 GB / T12226-1989 Common valve gray cast iron technical conditions 9 GB / T12227-1989 General valve ductile iron technical conditions 10 GB / T12228-1989 General purpose valve carbon steel forgings technical conditions 11 GB / T12229-1989 Common valve carbon steel castings technical conditions 12 GB / T12230-1989 General valve austenitic steel Casting conditions 13 GB / T12232-1989 General valve Flanged iron gate valve 14 GB / T12233-1989 Universal valve iron stop valve and lifting check valve 15 GB / T12234-1989 Universal valve flange and butt welded steel Gate valve 16 GB / T12235-1989 Universal valve Flanged steel stop valve and lift check valve 17 GB / T12236-1989 Universal valve Swing check valve steel 18 GB / T12237-1989 Universal valve Flanged and butt welded steel ball valves 19 GB / T12238-1989 General purpose valve Flange and butterfly valve connected butterfly valves 20 GB / T12239-1989 General purpose valves Diaphragm valves 21 GB / T12240-1989 General purpose valves Iron stopcocks 22 GB / T12241 Safety valves - General requirements 23 GB / T12242-1989 Safety valve performance test methods 24 GB / T12243-1989 Spring loaded direct safety valve 25 GB / T12244-1989 General requirements for pressure reducing valves 26 GB / T12245-1989 Performance of pressure reducing valves Pilot steam valves 28 GB / T12247-1989 Steam traps Classification 29 GB / T12248-1989 Steam traps - Terminology 30 GB / T12249-1989 Steam traps 31 GB / T12250-1989 Steam Trap structure length 32 GB / T12251-1989 Test methods for steam traps 33 GB / T13927-1992 Common valve pressure test 34 GB / T13932-1992 General purpose valve Swing check valve made of iron 35 GB / T15185-1994 Iron and steel and Copper ball valve 36 GB / T15188.1-1994 structural length of the valve butt welded valve 37 GB / T15188.2-1994 structural length of the valve connected to the valve 38 GB / T15188.3-1994 structural length of the valve female screw connection Valve 39 GB / T 15188.4-1994 Structural length of the valve threaded connection valve JB / T93-1991 handle JB / T94-1991 wrench JB / T308-1975 valve model preparation method JB / T450-1992PN16.0 ~ 32.0MPa forging angle high pressure valves, fittings , Fasteners Technical Specifications JB / T1308.1-1999PN250MPa Valve Type and Basic Parameters JB / T1308.2-1999PN250MPa Technical Specifications for Valves, Fittings and Fasteners JB / T1308.3-1999PN250MPa Pipe End Types, Dimensions and Technical Requirements JB / T1308.4-1999PN250MPa Types, dimensions and technical requirements of necked joints JB / T1308.5-1999PN250MPa Types, dimensions and technical requirements of socket joints JB / T1308.6-1999PN250MPa Cone, And technical requirements JB / T1308.7-1999PN250MPa Bolt type, size and technical requirements JB / T1308.8-1999PN250MPa Types and dimensions of nuts and nuts, and technical requirements JB / T1308.9-1999PN250MPa Type, size and technical requirements of the joint nut JB / T1308.10-1999PN250MPa External nut type, size and technical requirements JB / T1308.11-1999PN250MPa internal and external nut type, size and technical requirements JB / T1308.12-1999PN250MPa Positioning ring type, ruler Inch and technical requirements JB / T1308.13-1999PN250MPa Flange type, size and technical requirements JB / T1308.14-1999PN250MPa Stud type, size and technical requirements JB / T1308.15-1999PN250MPa step end stud type , Size and technical requirements JB / T1308.16-1999PN250MPa Types, sizes and technical requirements of nuts JB / T1308.17-1999PN250MPa Reducing pipe type, size and technical requirements JB / T1308.18-1999PN250MPa Reducing joint type, size and technology Requirements JB / T1308.19-1999PN250MPa equal-diameter tee, equal-diameter four-way type, size and technical requirements JB / T1308.20-1999PN250MPa reducer tee, reducing four-way type, size and technical requirements JB / T1308.21 -1999PN250MPa elbow type, size and technical requirements JB / T1691-1992 valve components stem head size JB / T1692-1991 umbrella hand wheel JB / T1693-1991 flat hand wheel JB / T1694-1991 stem nut (a ) JB / T1695-1991 Stem Nut (2) JB / T1696-1991 Stem Nut (3) JB / T1698-1991 Stem Nut (4) JB / T1699-1991 Stem Nut (4) JB / T1700.1 Locking nut (A) JB / T1 (2) JB / T1702-1-1991 bearing gland JB / T1702-1-1991 bearing gland JB / T1702-1-1991 bearing gland JB / T1702-1-1991 bearing gland JB / T1702-1-1991 bearing gland JB / T1702-1-1991 bearing gland JB / 1991 Bushing JB / T1706-1991 Gland nut JB / T1708-1991 Packing gland JB / T1709-1991T Bolt JB / T1712-1991 Asbestos packing JB / T1713-1991 Packing pad (A) JB / T1716-1991 Packing pad (B) JB / T1717-1992 valve structure on the seal seat size JB / T1718-1991 gasket (a) JB / T1719-1991 gasket (b) JB / T1720-1991 gasket (c) JB / T1721-1991 Gasket (four) JB / T1726-1991 valve cover JB / T1727-1991 split ring JB / T1728-1991 non-return washer JB / T1732-1992 valve structural elements tapered sealing surface size JB / T1733-1992 valve structure Element Body size of copper sealing surface JB / T1734-1992 Valve structure Gate and valve copper sealing surface size JB / T1735-1991 Base valve disc seal JB / T1736-1991 Swing check valve Disc seal JB / T1737-1991 Swing check valve Flap seal plate JB / T1738-1992 Valve structure wedge gate valve body gate rail and Groove size JB / T1739-1992 Valve structural elements Wedge gate valve body sealing surface spacing and wedge angle size JB / T1740-1992 Valve structure wedge gate sealing surface size JB / T1741-1991 top center JB / T1742-1991 Adjusting pad JB / T1747-1991 Packing ring JB / T1749-1991 Ammonia valve Flapper JB / T1750-1991 Valve element Ammonia valve Body sealing surface size JB / T1751-1991 Valve structure Socket weld connection and pipe ends Size JB / T1752-1991 Valve structure Male thread Connection end size JB / T1753-1991 Connector pad JB / T1754-1991 Connector JB / T1755-1991 Connector nut JB / T1756-1992 Valve structural elements Ferrule connecting end size JB / T1757-1991 Sleeve JB / T1758-1991 Sleeve nut JB / T1759-1991 Sleeve JB / T1760-1991 Hexagonal plug JB / T1761-1991 Plug gasket JB / T1762-1992 Valve structure elements Plate size JB / T2203-1999 Length of spring-loaded safety valve JB / T2205-2000 Pressure relief valve structure length JB / T2765-1981 Valve Terminology JB / T2766-1992PN16.0 ~ 32.0MPa Forging high-pressure valve structure length JB / T2768-1992PN16.0 ~ 32.0MPa pipe, fittings, valve end size JB / T2769-1992PN16.0 ~ 32.0MPa Threaded flange JB / T2770-1992PN16.0 ~ 32.0MPa Joint nut JB / T2771-1992PN16.0 ~ 32.0MPa Joint JB / T2772-1992PN16.0 ~ 32.0MPa Blind JB / T2773-1992PN16.0 ~ 32.0MPa studs JB / T2774-1992PN16.0 ~ 32.0MPa stepped double studs and screw hole size JB / T2775-1992PN16.0 ~ 32.0MPa nuts JB / T2776-1992PN16.0 ~ 32.0MPa Lens Tubes JB / T2777-1992PN16.0 ~ 32.0MPa Non-Permeable Lens Tubes JB / T2778-1992PN16.0 ~ 32.0MPa Pipe Fittings and Fasteners Temperature Marking JB / T5206.1-1991 Packing Gland JB / T5206.2-1991 Packing Gland JB / T5206.3-1991 Packing Gland JB / T5207-1991 Packing Plate JB / T5208-1991 Grommet JB / T5209-1991 Plastic Packing JB / T5210- 1991 Upper seal seat JB / T5211-1991 Gate valve seat JB / T5296-1991 General valve flow coefficient and flow resistance coefficient of the test method JB / T5298-1991 Pipeline steel plate gate valve JB / T5299-1998 Controlled butterfly valve JB / T5300-1991 General valve material JB / T6438-1992 valve sealing surface plasma arc surfacing technical conditions JB / T6439-1992 valve pressed steel magnetic particle inspection JB / T6440 -1992 Radiographic Examination of Compression Cast Steel Valves JB / T6441-1992 Safety Valves for Compressors JB / T6495-1992 Structural Elements of Valves Gate (or Disc) T-Groove Dimensions JB / T6496-1992 Valve Construction Element Stuffing Box Size JB / T6497-1992 Valve structural elements The size of the valve welding end JB / T6498-1992 Valve structural elements Flap valve and valve connection groove size JB / T6899-1993 Fire resistance of valves JB / T6900-1993 Drainage valve JB / T6901- 1993 Closed glasses valve JB / T6902-1993 valve steel liquid penetrant inspection method JB / T6903-1993 valve cast steel ultrasonic inspection method JB / T6904-1993 cylinder valve inspection and test JB / T7248-1994 valve with low temperature Technical conditions of steel casting JB / T7744-1995 Valve sealing surface plasma arc welding alloy powder JB / T7745-1995 pipeline ball valve JB / T7746-1995 Reducing forged steel valve JB / T7747-1995 needle valve JB / T7748-1995 Valve cleanliness and test methods JB / T7749-1995 Cryogenic valve technology JB / T7927-1999 valve castings appearance quality requirements JB / T7928-1999 Universal valve supply requirements JB / T8527-1997 Metal Seated Butterfly Valve JB / T8528-1997 normal type Door electric device technical conditions JB / T8529-1997 Flameproof valve electric device technical conditions JB / T8530-1997 valve electric device model preparation method JB / T8531-1997 valve manual device technical conditions JB / T8691-1998 on the knife-type gate valve JB / T8692-1998 Flue butterfly valve JB / T8858-2004 Gate valve static pressure life test procedures JB / T8859-2004 Globe valve static pressure life test procedures JB / T8860-2004 Plug valve static pressure life test procedures JB / T8861-2004 Ball valve static JB / T8862-2000 valve electric device life test procedures JB / T8863-2004 butterfly valve static pressure life test procedures JB / T8864-2004 valve pneumatic device technical conditions JB / T8937-1999 on the wafer check valve JB / T9092 -1999 Test and inspection of valves JB / T9093-1999 steam traps technical conditions JB / T9094-1999 liquefied petroleum gas equipment emergency shut-off valve technical conditions