GOST 8948-75
GOST 8948−75 Connecting parts from malleable cast iron with cylindrical thread for pipelines. Tees direct. Main dimensions (with Amendments No. 1, 2)
GOST 8948−75
Group B61
INTERSTATE STANDARD
CONNECTING PARTS FROM MALLEABLE CAST IRON WITH CYLINDRICAL THREAD FOR PIPELINES.
TEES DIRECT
Basic dimensions
Ductile iron and steel fittings with parallel thread for pipelines. Straight tees. 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 8948−59
EDITION (September, 2010) with Changes No. 1, 2 approved in September 1980 and March 1983 (IUS sizes 11−80, 7 to 83)
1. The principal dimensions of tees shall be as specified in the drawing and in the table.
Standard is fully consistent with CT CMEA 3300−81.
Note: the Drawing does not define the design of the tee.
Dimensions in mm
Pass conditional |
Thread |
Weight without cover, kg, not more* | ||
| The variant according to GOST 8944−75 | ||||
| 1 |
2 | |||
| 8 |
G |
21 | 0,064 | 0,063 |
| 10 |
G |
25 | Of 0.085 | 0,092 |
| 15 |
G |
28 | 0,133 | 0,143 |
| 20 |
G |
33 | 0,206 | 0,210 |
| 25 |
G 1 — |
38 | 0,318 | 0,330 |
| 32 |
G 1 |
45 | 0,490 | 0,475 |
| 40 |
G 1 |
50 | 0,673 | 0,594 |
| 50 |
G 2 — |
58 | 1,088 | 0,962 |
| (65) |
G 2 |
69 | 1,524 | 1,422 |
| (80) |
G 3 — |
78 | 2,013 | 1,850 |
| (100) |
G 4 — B |
96 | 3,980 | 3,460 |
_______________
* For inquiries
Notes:
1. Weight of galvanized fittings should not exceed the weight non more than 5%.
2. The tees specified in the table in brackets is not recommended.
Examples of symbols
Straight tee without covering with 40 mm:
Tee 40 GOST 8948−75
The same zinc-coating:
Tee TS-40 GOST 8948−75
(Changed edition, Rev. N 1, 2).
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:
Compilation of national standards. -
M.: STANDARTINFORM, 2010
