1" NPT 2PCS Full Port Forged Brass Ball Valves, Full Port Heavy Duty Brass Ball Valve Shut Off Switch for Water and Oil

Good quality and reasonably priced

Believe it or not, it's true, these valves could actually be worse. It would take a far more devious mind and engineering effort to make them worse but I'm convinced it's possible. I mean one end could be left hand Whitworth threads.First, the handle is somewhat wobbly and it's not possible to actually turn it 90 degrees to the off position unless you grind, file, or cut a bit of material off the handle so the ball actually cuts off flow completely.Second, there's the consistent problem with the threads - they aren't NPT.Third, even though the main description says 3/4" NPT there's a little bit of a kick in the backside in the details.So let's get on with my experience. I installed the valve and left the "shut off" side open thinking it would actually stop the flow of water when I restored pressure to the system. That's when I found out about the handle problem and quickly shut off the main and modified the handle so it would fully shut off. With that complete, I turned the main back on only to find the threads leaking rather severely. Figuring it was merely a matter of adding another 1/4 or 1/2 turn that's what I did. No joy, it continued to pee on the floor. Add another half turn - same result. Ok, main back off since it's possible I muffed the teflon tape up. Take the joint apart and - wait, what happened to the threads? Seems the male side lost a bit and the valve only has about 4 turns. 4 turns! That's barely hand tight on NPT where seal tight is typically about 7 turns.In short, if you don't have stock in a company that makes teflon tape or pipe dope I can't recommend these valves. The most comic aspect is the writing on the handle reads fáng xièlòu qiúfá which means "leak proof ball valve" and that may be true if it's connected to the parts it's supposed to be mated with. Turns out reading deeper into the details it actually says "Inlet Connection Type - National Pipe Tapered" and "Outlet Connection Type - BSPT". That means the outlet side is in fact a 55 degree Whitworth thread and it adds that it's compliant with ISO 7.1 which makes sense since that's the standard. The odd bit is the inlet connection which claims to be a 60 degree NPT thread yet both ends leaked in my experience and both ends bunged up the threads right around 5 turns. Then again, it's a ball valve so the inlet is indistinguishable from the outlet so why they go to the extreme to differentiate them is beyond me since it's clear that both ends only have about 4 threads and may work fine with the BSPT / ISO 7.1 standard but they aren't NPT and someone, perhaps the one who owns the marketplace and actually ships them, should inform the seller that their valves are non-compliant with the NPT standard.Hopefully I'm accurately attributing this to Hanlon's razor and they aren't that devious.

nothing to add

Fast delivery

I purchased and installed two of these valve for a hot and cold water shutoff. After installation, of the four connections (2 on inlet side and 2 on outlet side) I noticed two of the joints where leaking. After disconnecting the joint, inspecting for any problems and reassembly, the joints continued to leak. Again, I disassembled the joint and instead of teflon tape, I decided to use pipe joint compound with no significant improvement. On the third try, I disassembled the join, inspected the connection but this time I replaced the pipe connecting to the valve and used a new tube of joint compound with no success. After studying the situation further, I noticed that the leak was occurring on the downstream joint of both valves and even though I'm not a master plumber by any means, it seamed unlikely that I created a bad joint 6 time (three tries per valve) without any improvements. I began to wonder if there maybe something wrong with the pipe threads on the these valves. Upon further research, I noticed that the description indicates that the inlet side of the valve is NPT but the outlet side is BSPT. Was this a misprint or what is a BSPT?? Upon searching on the web, apparently BSPT is BRITISH STANDARD PIPE THREAD and BSPT will thread to NPT but will not seal. Why anyone in this country would use such a valve I do not know, but be aware that the downstream connection was where the problem was occurring, and apparently it is indeed because BSPT WILL NOT SEAL TO AN NPT THREAD!!

I bought two 3/4 inch valves because they were $20 for two as opposed to $15 for one of another brand. My expectations were not high. These are of very low quality based upon the "heft" of the valve. That is their weight is lighter than a better quality valve of the same size. They fo operate correctly and get the job done but if you need a quality product or have an exacting application you might want to spend a little extra. I am using it to control a pool vacuum pump so it is fine for my purposes.

Worked as expected. I used these to replace the gravity fed water system at my off grid cabin. I added several of these valve to separate and isolate areas of the system as to be able to turn off sections of the system for maintenance without having to shut all the water off. Works perfectly.

The ball valve on our sprinkler system started leaking at the joint. Bought these as replacement valves, 1 as a spare. The valve worked fine as a replacement, but beware. I did not see an overall length size in the description, and the new valve was about 1/2” shorter than the old one, which could have caused other problems with fitting to the existing copper pipe. Fortunately I needed to cut the pipe and use a Sharkbite connector in the re-assembly. The only other problem with these is that even with loads of plumber tape around the threads of the male pipes going into the valve, the joints leaked profusely. Since I used the Sharkbite connector, I wa able to disassemble the whole thing and find a solution to the leaks. Used 2 rubber gasket washers from a garden hose and spray nozzle fitted into the female ends of the valve. These stopped the leaks instantly.

Perfect!