Temperature & pressure release valve

[runaway]

Hi All,
I wonder if anyone can help me please? My pressure & temperature release valve on the hot water system on my 2003 Jeanneau.37 is letting out hot water in various ammounts into the bilges. Sometimes when under power a whole tank in half an hour. I have tried to clean it by immersing it in an anti cal. solution to no avail.
The valve is a Honeywell BS 6283/3 TP192 with a one and a quarter inch thread. I cannot find the address of anyone in England who can help me, or supply me. An e.mail address or phone No. would be much appreciated. John Shrive (RUNAWAY)

[sailby2]

Hi, I suffer from the same problem. Last time it happened, I fiddled with the valve and presto; it's been problem free for two months. Not a bit of help, but I hope someone else has a more conventional fix to post!

Regards,

[runaway]

Hi, sailby4,
Many thanks for the answer but I have done all that. It worked for a couple of days then failed again. I really need the address or telephone number of someone who sells Honeywell valves and can't seem to find anything. Cheers for now John

[ianmartin]

Similar experience on my 2005 SO35 finally traced to persistent preservative in the engine cooling system as supplied by Yanmar and not flushed out by Jeanneau .
Engine overheated the calorifier so pressure release valve discharged hot fresh water into the bilge (up to a bucket an hour!). Required new modified heat exchanger and much flushing of cooling system. Took 2 years to sort!
I have also been recommended to periodically activate the PRV by twisting it through a half turn flushing out any grit that might prevent the needle valve from seating correctly.

[rob]

John,

you may try asking asap-supplies (either .com or .co.uk), they are very helpful with anything engine/plumbing/water/etc related

cheers