GOST 8958-75
GOST 8958−75 Connecting parts from malleable cast iron with cylindrical thread for pipelines. The nipples double. Main dimensions (with Change No. 1)
GOST 8958−75
Group B61
INTERSTATE STANDARD
CONNECTING PARTS FROM MALLEABLE CAST IRON WITH CYLINDRICAL THREAD FOR PIPELINES. NIPPLE DOUBLE
Basic dimensions
Ductile iron fittings with parallel thread for pipelines. Double nipples. 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 8958−59
EDITION (September 2010) with amendment No. 1, approved in September 1980 (IUS sizes 11−80)
1. The principal dimensions of nipples shall be as specified in the drawing and in the table.
Drawing. The principal dimensions of the nipples
Note. The drawing does not define the design of the nipple.
Dimensions in mm
Conditional pass |
Thread |
Weight without cover, kg, not more* | |||
8 |
G — B |
17 | 36 | 7 | 0,029 |
10 |
G — B |
19 | 38 | 7 | 0,035 |
15 |
G — B |
24 | 44 | 7 | 0,065 |
20 |
G — B |
30 | 47 | 8 | 0,090 |
25 |
G 1 — B | 36 | 53 | 8 | 0,140 |
32 |
G 1 - |
46 | 57 | 9 | 0,209 |
40 |
G 1 — B |
50 | 59 | 9 | 0,210 |
50 |
G-2 — B | 65 | 68 | 10 | 0,406 |
(65) |
G 2 - |
80 | 75 | 11 | 0,529 |
(80) |
G 3 — B | 95 | 83 | 12 | 0,846 |
_______________
* For inquiries.
Notes:
1. Weight of galvanized fittings should not exceed the weight non more than 5%.
2. Nipple with specified in the table in brackets is not recommended.
Examples of symbols
Double nipple without covering with 40 mm:
The nipple 40 GOST 8958−75
the same zinc-coating:
Nipple C-40 GOST 8958−75
(Changed edition, Rev. N 1).
2. The constructive dimensions and technical requirements — GOST 8944−75.
3. Deviation of the size — according to GOST 6424−73.
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