Originally Posted by Wet_Boots
just like zone valves, we need closure
The plastic 1" Buckner inline valve that Ewing sells, or used to, was available for about $15 or so with the flow control. Never saw one without. The FC stem was cheap plastic, just like the manual bleed lever (similar to Weathermatic's)
I had problems rebuilding some a few years back, but I can't remember if it was a diaphragm design change, a bonnet change or both. Parts were not available in the 1" size anyway, so I bought a couple valves to cannibalize for parts. When that didn't work, I cut the pipe on the downstream side spun off the old valve bodies (easier w/ o the bonnet) and spun on new DVFs.