McAlpine 1¼" Self-Closing Waste Valve, BSP female inlet nut x universal compression outlet.
Membrane opens under water pressure to allow discharge to flow freely, then closes to form a seal to prevent foul odour or sewer gas entering the building.
Can be fitted in horizontal or vertical position, in installation where a non-return valve can be of benefit to the plumbing installation.
There is no water seal, so it can never dry out through evaporation or lack of appliance use as the membrane remains sealed.
Not recommended for use with shower trays unless there is access for maintenance.
| Brand | McAlpine |
| Compatible Brand | White |
| Compatible Model | Bathroom, Metric, United |
| Finish | Unfinished |
| Item Diameter | Not Specified |
| Item Height | Not Specified |
| Item Weight | 231 g |
| Material | ABS, Polypropylene, Plastic |
| MPN | MACVALVE1 |
| Shape | Straight |
| Type | TBA |
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