HG 3157-2005 Direct spring loaded safety valves for liquefied gas tank trucks

GB 150-1998 Steel pressure vessels GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 12224-1989 General requirements for industrial steel valves GB/T 12228-1989 General purpose industrial valves—Specification of carbon steel forgings GB/T 12228-2006 General purpose industrial valves—Specification of carbon steel forgings 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 12230-1989 General purpose industrial valves—Specification of austenitic steel castings GB/T 12230-2005 General purpose industrial valves—Specification of stainless steel castings GB/T 12230-2023 General purpose industrial valves—Specification of stainless steel castings GB/T 12241-1989 GB/T 12242-1989 GB/T 12243-1989 GB/T 1239.2-1989 GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2100-2002 Corrosion-resistant steel castings for general applications GB/T 2100-2017 Corrosion-resistanst steel castings for general applications GB/T 2624-1993 Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full GB/T 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 4240-1993 Stainless steel wires GB/T 4240-2009 Stainless steel wires GB/T 4240-2019 Stainless steel wires GB/T 4357-1989 Carbon spring steel wires GB/T 4357-2009 Cold-drawn non-alloy steel wire for springs GB/T 4357-2022 Cold-drawn unalloyed steel wire for springs GB/T 5218-1999 Alloy spring steel wires GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels HG 20592-20635 JB 4726 JB/T 1752-1992 Dimensions of the external thread connection ends of valve structural elements JB/T 2769-1992 PN16.0-32.0MPa threaded flange is a type of flange with a pressure rating of 16.0-32.0 MPa. It is typically used for connecting pipes and equipment in a pressure vessel or pipeline system JB/T 7927-1999 The appearance quality requirements for valve cast steel parts 化生字(87)第1174号 劳部发(1994)262号 质技监局锅发(1999)第154号 GB/T 12228-2025 General purpose industrial valves—Technical specification for carbon steel forgings GB/T 12229-2025 General purpose industrial valves—Technical specification for carbon steel castings