This standard replaces JB 84-59. JB/T 84-1994 Concave and convex surface welding ring plate type loose sleeve steel pipe flange JB/T84-1994 Standard download and decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
Concave and convex surface welding ring plate loose steel pipe flange subject content and scope of application
JB/T84·-·94
replaces 8459|| tt||This standard specifies the type and size of the loose sleeve steel pipe flange with a concave and convex surface welded ring plate with a nominal pressure PN of 4.0.6.3 and 10.0MPa.
This standard is applicable to the legal benefit 2 reference standard for concave and convex surface welded ring plate loose steel pipes with nominal pressure PN4.0~~10.0MPa
JB/T74 pipeline flange technical conditions|| The type and size of the tt||3 flange should comply with the requirements of Figure 1 and Tables 1 to 3. Type A
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4 flange technical requirements are in accordance with JB/T74. t
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5 The nominal pressure of the flange and the maximum allowable T operating pressure at different temperatures are in accordance with the provisions of Appendix B of JB/T74. 6 Marking example
Convex facing welding ring plate loose steel pipe flange with nominal diameter 300mm, nominal pressure 4.0MPa, size series 2: flange 30040AJB/T84---94||tt| |Nominal diameter 300mm, nominal pressure 4.0MPa size of 系统1的况i facet of welded ring plate式松套钢制管法：电影300-40B（系统1）JB/T84-94中华人民和国和机斯工业部1994-12-09 电影1995-1001 implementation
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