Pinecone
New Member
I am replacing a plastic check valve on the output of a Dometic RV water heater. The new check valve is brass which presents a problem of dissimilar metals and galvanic corrosion. I thought a CPVC nipple between the tank and the check valve would work to insulate the two materials, however I can't find a CPVC 1/2" nipple rated for hot water. The companies that manufacture them state that because the fitting is threaded, they are only rated for cold water use.
I'm wondering if there are nylon or PVC fittings rated for hot water. If not any suggestions would be appreciated. The water heater is set at 140 degrees F.
I'm wondering if there are nylon or PVC fittings rated for hot water. If not any suggestions would be appreciated. The water heater is set at 140 degrees F.