American threaded couplet is similar to threaded boss except that a straight length of weld ring is furnished. The one side is threaded connection, and the other side features a beveled transition to a straight length of welding ring.
Available size
Size | Class 3000, E (mm) | Class 6000, E (mm) | Weld ring OD N (mm) | Ref. No. |
---|---|---|---|---|
1/2″ / DN15 / 21.3mm | 33.4 | 38.1 | 23.8 | N5301 |
3/4″ / DN20 / 26.7mm | 38.1 | 44.5 | 27.0 | N5302 |
1″ / DN25 / 33.4mm | 46.1 | 57.2 | 33.4 | N5303 |
1-1/4″ / DN32 / 42.2mm | 55.6 | 63.5 | 42.9 | N5304 |
1-1/2″ / DN40 / 48.3mm | 63.5 | 76.2 | 49.2 | N5305 |
2″ / DN50 / 60.3mm | 79.4 | 79.4 | 61.9 | N5306 |
2-1/2″ / DN65 / 73.0mm | 92.1 | 92.1 | 73.0 | N5307 |
3″ / DN80 / 88.9mm | 111.1 | 111.1 | 114.3 | N5308 |
4″ / DN100 / 114.3mm | 141.3 | 141.3 | 114.3 | N5309 |
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