Belmont radiator valve O-rings.

I share your pain! I have 17 radiators, each with two Pegler/Belmont valves, each valve requiring 2 O-rings. The system is 35 years old but in reasonable condition thanks to Fernox. A few years ago I needed to replace the O-rings, found I could only get them from Pegler and the price was crazy. I kicked up a stink and got a reasonable reduction in the price but it was still a rip-off. The problem is complicated by the fact that some valves have "notched" spindles others don't and they require different O-rings (red or green). Also the bathroom radiators on the gravity feed have larger 1/2" valves, notched and un-notched! If anyone knows of generic O-rings to meet these 4 combinations I'd also be most grateful.

Thanks

ChipMonk

I should add, the chap I spoke to at Pegler this morning did say there wasn't a lot of difference between red and green, but didn't say how much! In the shed just now, I applied the trusty Aldi digital caliper to a new red o-ring I have, and although tricky to measure soft materials accurately, it seems to be 1/16 inch by half- inch OD. The material is softer than some ordinary o-rings I got at B & Q, but some of them are the right size - they are in packets according to material dia., not OD. I might try to contact a trade seals supplier, and find out about different materials. My house is

In article ,

I've found

Alternatively, use their data to select, then buy from a local engineering supplier using the BS size/code.

Just buy a selection box for about a tenner. If you start to run out of the size you need then you may be able to get a large number from BES or such like.