Description

This is a Sherwood CGA580 valve – a high-pressure cylinder valve for compressed air or inert gas service.
It has a 3/4 inch NGT (National Gas Taper) outlet thread and is rated for 3775 psi working pressure – that's serious pressure.
Condition is New – Open Box, so it's in excellent shape with no functional defects, but it might be missing original packaging or have been used for testing/demo.

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It likely comes with the accessories you'd expect, and may include a warranty – check the listing.

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Brand is Sherwood, MPN is GSV58061-35, and it's manual operation – turn the handwheel to open or close.
Made in the United States.

AY Gas Cylinder Valve CGA580, 3/4 NGT 2265 PSI for Argon, Nitrogen, He

And yes, it has a California Prop 65 warning – so wash your hands after handling, but that's standard for brass valves containing trace lead.
This valve screws onto a standard gas cylinder with a CGA580 connection (the most common for air and nitrogen).

VALVULA DE HE/NE/AR/KR/XE CGA580 20MPA 3/4-14-NGT - EDUMAQ

Perfect for filling or dispensing from high-pressure bottles – think scuba, paintball, industrial gas, or laboratory supply.

Wellcare Cga580 Inert CO2 Gas Cylinder Valve - 3/4 Ngt 3360 Psi

Sherwood is a trusted name in the valve industry, so this is a solid replacement if your old valve leaks or is hard to turn.
Good to have a spare, especially if you're running multiple cylinders.

CGA540 Valve - 3/4 NGT 3360 PSI | All Safe Global