We are offering instrument gauge valve, brass needle valve.Product code:sv-bn1101 accessories of gauge nickel plated or brass size:14 .38 bsp .npt this sturdy brass needle valve, with teflon packing glandss, rated to 600psi @ 300f, he large round knurled handle offers maximum ease and precise control to throttle the pressure on & off to the gauge. Caution: a coil syphon should be used between needle valve and steam service.