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NWC Ohio | Can you cut a standard 2” camlock gasket to work inside the threaded area? Maybe a bulkhead fitting gasket or a toilet tank gasket would be the right size to cut down?
FYI: when it comes to NPT in plastic/poly fittings there are different “cuts” by manufacturers unfortunately. Greenleaf from Rural King and TSC are flimsier and a straighter taper than a Green leaf from my local tank place. Both are a straighter taper and flimsier than a Banjo fitting and taper. The Banjo fittings are superior to them all. Banjo seal better and thread together with more taper interference. I’ve never bottomed out a Banjo fitting while threading it in. Both Green leaf brand fittings I constantly bottom out, even with 5+ wraps of thicker teflon tape. Few of them had so much tape you couldn’t see the dimples for threads anymore. Still leaked at 60 psi.
If you truly suspect you have a BPST then you probably figured this out already but those style fittings do seal with an o-ring. The o-ring is recessed into the end of the male nipple, and seals when the male nipple bottoms against the flat base inside the female coupler. I’ve only delt with this style fitting on solenoid valves that I got from TSC and Rural King (looks identical to Texas Industrial Remcor solenoid valves). I used the cheap white Greenleaf fittings from TSC with lots of teflon tape. The Female BPST got a MPT reducer bushing threaded in first, then I threaded the steel base of a pressure gauge in and it did seal well for the 10 years I ran those valves. The male BPST I never got perfectly sealed. It sealed well for a few years, but sporadically dripped from time to time.
I wouldn’t use JB weld in this situation. As previously mentioned I would try Permatex “Right Stuff” gasket maker or black RTV gasket maker to seal the threads. Clean everything as clean as possible before applying. Then once applied and assembled make sure to let set for the time stated on the packaging to allow it to cure. Should be sealed up good then. Plus side is you could take it apart later, just going to take some more muscle to get the gasket maker to tear and let loose. | |
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Ron..NE ILL..10/48 Chinese flow meter, J-B Weld
