GOST 8956-75
GOST 8956−75 Connecting parts from malleable cast iron with cylindrical thread for pipelines. Clutch compensating. Main dimensions (with Change No. 1)
GOST 8956−75
Group B61
INTERSTATE STANDARD
CONNECTING PARTS FROM MALLEABLE CAST IRON WITH CYLINDRICAL THREAD FOR PIPELINES. THE COUPLING COMPENSATING
Basic dimensions
Ductile iron fittings with parallel thread for pipelines. Compensation sockets. Basic dimensions
ISS 23.040.60
Date of introduction 1977−01−01
The decision of the State standards Committee of the Council of Ministers of the USSR from
Limitation of actions taken by Protocol No. 2−92 of the Interstate Council for standardization, Metrology and certification (ICS 2−93)
REPLACE GOST 8956−59
EDITION (September 2010) with amendment No. 1, approved in September 1980 (IUS sizes 11−80)
1. The principal dimensions of the coupling shall be as specified in the drawing and in the table.
Drawing. The main dimensions of the clutch
Note. The drawing does not define the design of the clutch.
Dimensions in mm
Conditional pass |
Thread |
The number of edges |
Weight without cover, kg, not more* |
| 15 |
G |
2 | 0,175 |
| 20 |
G |
2 | Of 0.236 |
| 25 |
G 1 — | 4 | 0,342 |
| 32 |
G 1 |
4 | 0,462 |
| 40 |
G 1 |
4 | 0,582 |
| 50 |
G 2 — | 6 | 0,832 |
_______________
* For inquiries.
Note. Weight of galvanized fittings should not exceed the weight non more than 5%.
Examples of symbols
Compensating clutches with no coatings with 40 mm:
Clutch cover 40 GOST 8956−75
The same zinc-coating:
Clutch cover TS-40 GOST 8956−75
(Changed edition, Rev. N 1).
2. The constructive dimensions and technical requirements — GOST 8944−75.
The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
Pipes of metal and connecting
parts to them. Part 4. Pipe black
metals and alloys cast and connective
parts to them. The basic dimensions. Methods
technological tests of tubes:
SB. Standards. — M.: STANDARTINFORM, 2010
