The models can be supplied in both metric and inches units. The 32 (1”), 50 (1½”), 63 (2”) and 90 (3”) mm models are all supplied with a coupling on both sides. They are therefore easy to disassemble and you do not need an extra 3-part coupling. The 110 (4”) mm version can be bonded directly, without couplings.
The internal passages are:
- 32mm / 1" valve - 27mm
- 50mm / 1½" valve - 42mm
- 63mm / 2" valve - 54mm
- 90mm / 3" valve - 75mm
- 110mm / 4" valve - 102mm