What is the standard for valves?
General purpose valves Flange-connected iron gate valves
GB12233-89
General purpose valves Iron globe valves and lift check valves
GB12234-89
General-purpose valves Gate valves of copper with flange and butt-weld connections
GB12235-89
General-purpose valves Flange-connected steel globe valves and lift check valves
GB12236-89
General valves Swing check valves made of steel
GB12237-89
General valves Ball valves made of steel with flange and butt-weld connections
GB12238-89
General-purpose valves Butterfly valves with flange and butt-weld connections
GB12241-89
Safety valves General requirements
GB12242-89
Safety valves Performance test methods
GB12243-89
Spring-loaded direct load safety valves
GB12244-89
Pressure reducing valves General requirements
GB12245-89
Pressure reducing valves Performance test methods
GB/T13932-92
General valves Iron swing check valves
GB/T15185-94
Iron and copper ball valves
JB309-75
Gate valves Parameters
JB311-75
Check valves Parameters
JB1761-91
Screw plug gaskets
JB/T1762-92
Valve structural elements Plate body size
JB2202-77
Spring loaded safety valves Parameter
JB2203-77
Spring-loaded safety valves Structure length
JB2205-77
Pressure reducing valves Structure length
JB2206-77
Pressure reducing valves Technical conditions
JB2311-78
Ball valves Technical conditions
JB2766-92
PN16.0~32.0MPA forged high pressure valves Structural length
JB/T5299-91
General-purpose valves Fluid-controlled butterfly check valves
JB/T5300-91
General-purpose valves Materials
JB/T6438-92
Plasma arc overlay welding of valve sealing surfaces Technical requirements
JB/T6439-92
Valves subject to pressure casting steel parts Magnetic particle flaw detection inspection
JB/T6440-92
Valves subject to die-cast steel parts Radiographic inspection
JB/T6441-92
Safety valves for compressors
JB/T6495-92
Valve structure elements Gate (or valve) T-slot size
JB/T6496-92
Valve structure elements Packing box dimensions
JB/T6497-92
Valve structure elements Stem end dimensions
