Honeywell "Home" V8043E zone valve blow-out

psb75

Has anyone had experience with this Honeywell zone valve blow out its O-ring?
I am attending to major boiler room damage due to water spraying out of a failed zone valve O-ring. The house was not occupied for a while...so a lot of water sprayed out.
I did not see the failed valve before it was replaced. I'm being asked to replace O-rings on 5 more zone valves. Trying to determine if this is necessary and/or how to determine this. No glycol was in the system. It was operating as per ususal. Nicely plumbed Buderus boiler. Not old. 15 yrs. maybe? All copper plumbing. Zone valves are same age--6 matching Honeywell "Home" ZVs.

Robert O'Brien

Frozen? Never seen one fail catastrophically, there is a groove in the waterway body that holds it captive

psb75

Thanks Robert. I've taken one apart and seen that captive o-ring. It looked to me as "unlikely" that it could fail in the way described to me. I SAW the water damage...but NOT the failed O-ring.

hot_rod

Only by getting your hands on the failed one could you make any judgment.
I'll bet the insurance company would like to see the failed valve also.

psb75

True that hot_rod. It was a previous repair person who replaced the O-ring. I picked up a new zone valve at the supply house, took it apart and it looks fairly bullet proof as far as "how it could fail". I'm going to
suppose it was perhaps a "one off" situation, maybe valve wasn't assembled well enough from mfg. when installed.