Diaphragm washer which way round

Which way round to fit a diaphragm washer? Anode Contact options for registered users. Which way round should I fit a circular, one-and-a-quarter inch diameter, ball valve diaphragm washer? Forgive the many words, but I find these simple washers most difficult to describe. It seems to me that possibly the washer should be fitted so that the part of the arm that pushes on the centre portion should push onto side A, pushing the rubber onto the plastic nozzle through which water enters.

But today I have come across two valves where the washer had been fitted the opposite way round, hence my question, as I need to replace these two diaphragm washers. The easiest way that it moves goes toward the nozzle in the unit with the protruding part pressing against the nozzle so to speak.

The washer has a rim, and all the convolutions in the rubber are on one side of the rim. In this case, take care not to damage the sealing washer behind the seat. A constant drip from the front of the valve during filling is normal, but if you suspect the diaphragm needs replacing:. It could be that this cures the problem; if not, replace the diaphragm. Position the bush on the outer edge of the diaphragm on the steel pin fixed to the valve body. Instead of different size seatings the Torbeck valve comes with a choice of flow restrictors for high and medium pressure.

Early models may not have a filter. Please could someone advise on this. One side of the diaphragm has a bit at the centre of it slightly proud to the rest of the surface. Is it this side of the diaphragm that faces the arm and the float? Between the diaphragm and the mains feed inlet there's a plastic part that isn't exactly cone shaped but it tapers at one end.

Am I right that it's this tapered end that the diaphragm will press against to close off the water supply? This part with the tapered end had a plastic washer with it that I managed to lose under the floorboards.