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Threads of couplings with female threads are straight R-pipe threads.
We have paid special attention to the crystal structure of our couplings. Thanks to our own casting methods / moulding techniques, the crystal structure of our products can be tailored to make our products really tough and durable and, therefore, also very safe to use. In a test by the VTT Technical Research Centre of Finland, our couplings remained undamaged and still leak-proof at a pressure of 75 bar.
Our couplings have been tested by VTT Expert Services Oy, in accordance with chapter F7 of standard SFS-EN 671-1 (VTT - S - 05218-15).
All JM-Valu couplings are immediately available as stock items.
Claw distance | Thread size |
50 (68mm) | ¾ " |
50 | 1 " |
50 | 1 ¼" |
50 | 1 ½ " |
50 | 2 " |
50 | 2 ½ " |
80 (105,5 mm) | 2 " |
80 | 2 ½ " |
80 | 3 " |
80 | 4 " |
(144 mm) | 2 " |
100 (Suction / pressure with a seal) | 3 " |
100 (Suction / pressure with a seal) | 4 " |
100 (Suction / pressure with a seal) | 4 ½ " |