Malleable iron union (Ball-to-cone / ball-to-ball joint) is a detachable fitting with both female threaded connections. It consists of a tail or male part, a head or female part, and a union nut, with ball-to-cone joint or ball-to-ball joint.
Available size
| Size | A (mm) | Ref. No. |
|---|---|---|
| 1/4″ / DN8 / 13.7mm | 36.5 | M6301 (UL) |
| 3/8″ / DN10 / 17.1mm | 41 | M6302 (UL) |
| 1/2″ / DN15 / 21.3mm | 43.5 | M6303 |
| 3/4″ / DN20 / 26.7mm | 49.5 | M6304 |
| 1″ / DN25 / 33.4mm | 52.5 | M6305 |
| 1-1/4″ / DN32 / 42.2mm | 57.5 | M6306 |
| 1-1/2″ / DN40 / 48.3mm | 61 | M6307 |
| 2″ / DN50 / 60.3mm | 70 | M6308 |
| 2-1/2″ / DN65 / 73mm | 82 | M6309 |
| 3″ / DN80 / 88.9mm | 89 | M6310 |
| 4″ / DN100 / 114.3mm | 98 | M6311 |
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