Beduan Brass 10500-VE Automatic Float Valve, 1/2" MNPT Air Release Valve

Using these to vent my pool heating system and they are doing a great job so far. Been in for a month and are working, system is fairly low pressure and these remove the trapped air well. They do allow the air back in when the pump is off as they don’t have check valve feature. I didn’t add a check here as I was afraid it would hurt the air removal with my low system static pressure (<10 PSI) when the pump is running. Being an open system the air accumulation is constant issue and my original design of manual valves didn’t work well. These allow the system vent and prevent air lock on startup…. My pool is 85 in May (helps a little that I’m in Phoenix)

Good quality. I like the adapter it comes with. Worked well.

I have been having issues with mine leaking at the base where the 1/2 NPT male part threads on to the bleeder. I took it off and have not tried to fix it as of yet. Should just be a gasket or O-ring.

The unit comes with an o-ring installed and a gasket with adapter. Not a single unit as pictured. There are no installation instructions included and the o-ring had a cut in it. I tried thread tape and thread sealant and it still leaks. Pay a little more and buy a Watts. It does however function as intended, venting the air from the water line.

The price was great and they did just what I needed. Once your application is up to pressure though the air may not be released since I think the back pressure keeps the float valve closed. For this reason I slowly added pressure to allow the air time to release.