GOST 8953-75
GOST 8953−75 Connecting parts from malleable cast iron with cylindrical thread for pipelines. Crosses with two transitions. Main dimensions (with Change No. 1)
GOST 8953−75
Group B61
INTERSTATE STANDARD
CONNECTING PARTS FROM MALLEABLE CAST IRON WITH CYLINDRICAL THREAD FOR PIPELINES. CROSSES WITH TWO TRANSITIONS
Basic dimensions
Ductile iron fittings with parallel thread for pipelines. Four-way junction pieces with two passages. 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 8953−59
EDITION (September 2010) with amendment No. 1, approved in September 1980 (IUS sizes 11−80)
1. The principal dimensions of the crosses shall be as specified in the drawing and in the table.
Note. The drawing does not define the design of the cross.
Dimensions in mm
Conditional pass |
Thread | Weight uncoated kg no more* | ||||||
| The variant according to GOST 8944−75 | ||||||||
| 1 |
2 | |||||||
| 20х15х15 |
G |
G |
G |
30 | 31 | 28 | 0,200 | 0,180 |
| 20х20х15 |
G |
G |
G |
33 | 33 | 31 | 0,264 | 0,217 |
| 25х15х20 |
G 1 — |
G |
G |
32 | 34 | 30 | 0,252 | 0,230 |
| 25х20х20 |
G 1 — | G |
G |
35 | 36 | 33 | 0,316 | 0,268 |
| 32х20х25 |
G 1 |
G |
G 1 — |
36 | 41 | 35 | 0,396 | 0,342 |
_______________
* For inquiries.
Note. Weight of galvanized fittings should not exceed the weight non more than 5%.
Examples of symbols
Cross with two transitions uncoated with a 25 mm by
15 mm and
20 mm:
Cross 25х15х20 GOST 8953−75
The same zinc-coating:
Cross C-25х15х20 GOST 8953−75
(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:
Compilation of national standards. -
M.: STANDARTINFORM, 2010
