Malleable iron straight coupling (Socket) is straight-shaped pipe fitting with female threaded connection, and it is used to join two pipes.
Available size (Class 150)
| Size |
A (mm) |
Ref. No. |
| 1/2″ / DN15 / 21.3mm |
34.0 |
M7303 (UL/FM) |
| 3/4″ / DN20 / 26.7mm |
38.6 |
M7304 (UL/FM) |
| 1″ / DN25 / 33.4mm |
42.4 |
M7305 (UL/FM) |
| 1-1/4″ / DN32 / 42.2mm |
49.0 |
M7306 (UL/FM) |
| 1-1/2″ / DN40 / 48.3mm |
54.6 |
M7307 (UL/FM) |
| 2″ / DN50 / 60.3mm |
64.3 |
M7308 (UL/FM) |
| 2-1/2″ / DN65 / 73.0mm |
73.2 |
M7309 (UL/FM) |
| 3″ / DN80 / 88.9mm |
80.8 |
M7310 (UL/FM) |
| 4″ / DN100 / 114.3mm |
93.7 |
M7311 (UL/FM) |
| 5″ / DN125 / 141.3mm |
95.0 |
M7312 (ISO) |
| 6″ / DN150 / 168.3mm |
105.0 |
M7313 (ISO) |
Available size (Class 300)
| Size |
A (mm) |
Ref. No. |
| 1/4″ / DN8 / 13.7mm |
35.1 |
M7301-300 (ISO) |
| 3/8″ / DN10 / 17.1mm |
41.4 |
M7302-300 (ISO) |
| 1/2″ / DN15 / 21.3mm |
47.8 |
M7303-300 (ISO) |
| 3/4″ / DN20 / 26.7mm |
54.1 |
M7304-300 (ISO) |
| 1″ / DN25 / 33.4mm |
60.5 |
M7305-300 (ISO) |
| 1-1/4″ / DN32 / 42.2mm |
73.2 |
M7306-300 (ISO) |
| 1-1/2″ / DN40 / 48.3mm |
73.2 |
M7307-300 (ISO) |
| 2″ / DN50 / 60.3mm |
92.2 |
M7308-300 (ISO) |
| 2-1/2″ / DN65 / 73.0mm |
104.9 |
M7309-300 (ISO) |
| 3″ / DN80 / 88.9mm |
104.9 |
M7310-300 (ISO) |
| 4″ / DN100 / 114.3mm |
117.0 |
M7311-300 (ISO) |
