CBM 1007-1981 16kgf/cm2 cast iron and cast steel flange

CBM 1007-1981 16kgf/cm2 cast iron and cast steel flanges CBM1007-1981 standard download decompression password: www.bzxz.net

Foreign Trade Standard of the Sixth Machinery Industry Ministry of the People's Republic of China
16kgf/cm Cast Iron and Cast Steel Flange
This standard flange connection dimensions are the same as J1S
B2213-1976
Applicable media range: steam, air, water and oil, etc. 2 Flange dimensions refer to the following figure and Table 1.
The rest V3
Note: The double-dotted line in the figure is a full-plane flange. Issued by the Sixth Ministry of Machinery Industry
Proposed by the Pipe Accessories Group
CBM1007-81
Implemented on July 1, 1981wwW.bzxz.Net
The Seventh Othorp
Free Standard Network (www.freebz.net) without registration for downloading and drafting
(90）
10d100
125125
15d150
20d200
25q250
30q30 0
35q335
40d380
45q430
50q480
CBM1007-81
Sealing surface
Neck diameter
Ball is cast iron
Ductile iron
Note: Try not to use the nominal diameter in brackets: 20
Total 3 pages Page 2
Center circle
Free standard network (www.freebz.net) No registration is required to download the number
Countersunk seat
Thread)
CBM1007-81
3. Flange materials are as per Table 2.
Parts name
Cast steel flange
Ductile iron flange
Cast iron flange
Ductile iron
Gray cast iron
Bolts and nuts are as per Table 3:
Below 220℃
220℃~<350C
High quality carbon
Element·steel
Free standard
Total 3 pages Page 3
QT42-10
HT20-40
Standard Standard number
GB699-65
20crMo
350c425℃
Alloy structural steel
yB6-71
Note: High-quality carbon steel strip above No. 35 is quenched and tempered 5.
High-quality carbon
Standard number
CB772-70
GB1348-78
GB976-67
Flange allowable temperature and working pressure are temporarily in accordance with CBM102281 flange sealing surface and gasket.
iAccording to CBM1002-81:
Flange size allowable deviation is in accordance with CBM1003-81: Free standard network (www.freebz.net) can be downloaded without registration Standard number
GB699-65
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.