| inch/fraction | mm metric | inch/fraction | mm metric | |
| 1/8" | 3,175 mm | 1 3/4" | 44,450 mm | |
| 1/4" | 6,350 mm | 2" | 50,800 mm | |
| 3/8" | 9,525 mm | 2 1/4" | 57,150 mm | |
| 1/2" | 12,700 mm | 2 1/2" | 63,500 mm | |
| 5/8" | 15,875 mm | 2 3/4" | 69,850 mm | |
| 3/4" | 19,050 mm | 3" | 76,200 mm | |
| 7/8" | 22,225 mm | 3 1/4" | 82,550 mm | |
| 1" | 25,400 mm | 3 1/2" | 88,900 mm | |
| 1 1/4" | 31,750 mm | 3 3/4" | 95,250 mm | |
| 1 1/2" | 38,100 mm | 4" | 101,600 mm |
Size and Weight
Unless otherwise stated, all dimensions are in millimeters (mm) and weights are in grams (g).
PN = nominal pressure in bars 1 bar 10N/cm² => ca. 10 m column of water
DN = nominal diameter in inches or mm 1" = 25.4 mm => ca. 25 mm
Nominal pressure is the maximum applicable pressure at the standard temperature, which, unless otherwise stated, is 20°C.
Nominal diameter is the excess pressure when all operational conditions are taken into consideration, including pressure surges. It depends on the operating temperature, the medium, the size of the component/valve, and, where applicable, the type of seal.
There are legal provisions or regulations that apply to certain areas of application and that take precedence over the guidelines provided in this catalog.
Appliance valves:
- Angle valves
- Washing machine valves
- Combination angle valves
- Sink valves
- Bip taps
- Upper parts and handles
Compression fittings, installation fittings- Flexibe hoses, washing machine hoses