These valves are high quality, “true’’ throttling valves. Unlike most socalled needle valves, both the body seat and stem are tapered to provide fine, precise control over a wide range of adjustment without stem galling.
The 1224 may be used as a small, inexpensive shut-off valve between a pressure gauge and bulk storage container to allow for convenient gauge replacement.
The 1316 and 1318 provide taper pipe thread by left hand hose connection threads and are useful in a wide range of torch and fuel burner applications where an accurate throttling action is required.