2 Pieces Heavy Duty Brass Instrument Replacement Control Needle Valve 1/4" Npt Female X 1/4" Npt Female Connection Golden

These work very well for gases and compressed air fixtures and tools.

Goods match the description. Fast dispatch and delivery. I recommend this seller.

This valve will work perfectly for my intended purpose of metering a compressed air flow. Since I have worked as a machinist for the past 35 years I couldn't resist disassembling the valve and inspecting it under my 10X stereo microscope. The machining is of acceptable quality on the inside of the valve but it appears the cutting tools were not overly sharp so the finish is not as smooth as it should be but no big deal. The big deal for some is that the valve was full of machining chips which could blow out of the valve and cause problems downstream. I will disassemble all my valves before putting them into service and finish the deburring that should have been done at the factory so the chips don't lodge in the solenoid valve which is downstream of this valve and cause problems with it. Would I purchase these valves again? Yes, absolutely. They were very inexpensive and after disassembly and cleaning will do exactly what I need them to do for a very long time.

These valves are a great value for the money. They work perfectly with no leaks.

Nicely made. Knurling on knob is nice, pipe threads made right, which seems to be a problem on some Chinese stuff. Not this one, though.

Bought these for metering the flow of gasoline and the fine adjustment that these provide worked perfectly.

I really like this product. It’s brass so it will last forever and it is really sturdy and well built. The price is much cheaper than what they are asking in the home improvement stores. You cannot go wrong with this product.

Works as described and seem to be well built. Very good flow control, I’m using them in a cooling water circuit and they are working well for me.