GOST 8966-75
GOST 8966−75 pipe steel connections with cylindrical thread for pipelines P=1,6 MPa. Clutch direct. Basic dimensions
GOST 8966−75
Group В62
INTERSTATE STANDARD
Pipe STEEL connections WITH CYLINDRICAL THREAD FOR PIPELINES P=1,6 MPa. CLUTCH DIRECT
Basic dimensions
Pipe steel connections with cylindrical thread for pipelines P=1,6 MPa. Straight sockets. Basic dimensions
ISS 23.040.40
Date of introduction 1977−01−01
The decision of the State standards Committee of the Council of Ministers of the USSR from
The expiration time limit is removed by the Resolution of Gosstandart of the USSR from
REPLACE GOST 8966−59
REPRINTING. September 2010
1. This standard applies to steel straight coupling with zinc coated and uncoated with cylindrical thread serving for the connection of water and gas pipes with application of sealant in heating, plumbing, and gas lines and other systems operating in conditions of aggressive environments (water, saturated steam, combustible gas, etc.) carried out at a temperature environment not higher than 175 °C and pressure P=1.6 MPa.
Standard corresponds to ISO recommendation R 50*.
________________
* Access to international and foreign documents referred to here and hereinafter, can be obtained by clicking on the link to the site shop.cntd.ru. — Note the manufacturer’s database.
2. The principal dimensions of couplings shall be as specified in the drawing and in the table.
Drawing. The principal dimensions of couplings
Conditional pass |
Thread |
Macca uncoated, kg | ||
| mm | ||||
| 8 |
|
25 |
3,5 |
0,023 |
| 10 |
|
26 |
3,5 |
0,036 |
| 15 |
|
34 |
4,0 |
0,067 |
| 20 |
|
36 |
4,0 |
0,086 |
| 25 |
|
43 |
5,0 |
0,163 |
| 32 |
|
48 |
5,0 |
0,220 |
| 40 |
|
48 |
5,0 |
0,255 |
| 50 |
|
56 |
5,5 |
0,409 |
| 65 |
|
65 |
6,0 |
0,663 |
| 80 |
|
71 |
6,0 |
0,838 |
| 100 |
|
83 |
8,0 |
1,801 |
| 125 |
|
92 |
8,0 |
2,374 |
| (150) |
|
92 |
10,0 |
3,560 |
Notes:
1. Allowed in the manufacture of couplings of pipe furnace welding, the increase in wall thickness and, accordingly, weight to 25%.
2. Couplings specified in brackets, are made at the request of the consumer.
Examples of symbols
Direct coupling without coverage =50 mm:
Coupler 50 GOST 8966−75
The same zinc-coating:
Coupling 50 C GOST 8966−75
3. Couplings made in accordance with the requirements of GOST 8965−75.
