Standard No.:	GB/T 26145-2010
English Name:	Drain valve
Chinese Name:	排污阀
Chinese Classification:	J16    Valve
Professional Classification:	GB    National Standard
ICS Classification:	23.060.99 23.060.99    Other valves 23.060.99
Issued by:	AQSIQ
Issued on:	2011-1-14
Implemented on:	2011-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	180.0
Delivery:	via email in 1 business day

GB/T 26145-2010 Drain valve 1 Scope This standard specifies the structural forms, technical requirements, materials, test methods, inspection rules, marking, packaging, transportation, storage and supply of drain valves. This standard is applicable to PN10 to PN320 pressure vessels for liquid medium, PN10 to PN160 pressure pipelines for gas medium, and drain valves with a nominal dimension of DN15 to DN300. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB 150 Steel pressure vessels GB/T 228 Metallic materials - Tensile testing at ambient temperature GB/T 1239.2 Cold coiled helical springs technical specifications - Part 2: Compressions spring GB/T 1972 Disc spring GB/T 9113 (All parts) Integral steel pipe flanges GB/T 9124 Specification for steel pipe flanges GB/T 12220 General purpose industrial valves - Marking GB/T 12224 General requirements for industrial steel valves GB/T 12226 General purpose industrial valves - Specification of flake graphite iron castings GB/T 12227 General purpose industrial valves - Specification of spheroidal graphite iron castings GB/T 12228 General purpose industrial valves - Specification of carbon steel forgings GB/T 12229 General purpose industrial valves - Specification of carbon steel castings GB/T 12230 General purpose industrial valves - Specification of stainless steel castings GB/T 12233 General purpose industrial valves - Casting iron globe valves and lift check valves GB/T 13927-2008 Industrial valves - Pressure testing GB/T 17241.6 Integral cast iron flanges JB/T 5300 General purpose industrial valves material - Selection guideline JB/T 7928 General purpose industrial valves - Delivery specification JB/T 8858 Gate valve - Potential pressure life test regulation JB/T 8859 Globe valve - Potential pressure life test regulation JB/T 9092 Valve inspection and testing SY/T 0599 Metallic material requirements on resistance to sulfide stress cracking and stress corrosion cracking for natural gas surface equipment 3 Structural forms 3.1 The typical structure of drain valve for liquid medium is shown in Figures 1 to 4.

Foreword i 1 Scope 2 Normative references 3 Structural forms 4 Technical requirements 5 Inspection and test 6 Inspection rules 7 Marking 8 Packaging, transportation, storage and supply