Standard No.:	JB/T 87-1994
English Name:	Asbestos Rubber Gaskets for Pipeline Flanges
Chinese Name:	管路法兰用石棉橡胶垫片
Chinese Classification:	J15    Pipeline fittings
Professional Classification:	JB    Professional Standard - Machinery
Source Content Issued by:	Ministry of Machinery Industry
Issued on:	1994-12-9
Implemented on:	1995-10-1
Status:	superseded
Superseded by:	JB/T 87-2015 Non-metallic flat gaskets for pipe flanges
Superseded on:	2016-3-1
Superseding:	JB 87-1959
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price(USD):	184.0
Delivery:	via email in 1 business day

1 Subject Content and Application Scope This standard specifies types, sizes and technical requirements of asbestos rubber gaskets for steel pipe flanges. This standard is applicable to asbestos rubber gaskets for steel pipe flanges with nominal pressure PN=0.25 to 6.3 MPa, sealing surface type is convex, concave-convex surface, tongued and grooved surface, as specified in JB/T 79 to JB/T 86. 2 Quoted Standards GB 539 Oil-resisting asbestos-rubber sheets GB/T 1804 General tolerances — Tolerances for linear dimensions without individual tolerance indications GB 3985 Asbestos-rubber sheets GB 9129 Specification for asbestos rubber gasket for steel pipe flanges