MEC Fixed Liquid Level Vent Valve, Brass 1/4 in. MNPT

Designed to minimize loss of product while allowing the operator to effectively bleed down connections and detect liquid levels while filling containers. Vent valves provide an effective means to verify valves have closed in the transfer system when installed into the downstream auxiliary port on the Marshall Excelsior globe and angle valves. Opening the vent valve until liquid or vapor stops venting indicates it is safe to disconnect.|Knurled stem that completely unscrews from the valve making the stems replaceable|#54 orifice with no self-cleaning apparatus|1/4 in. MNPT connection|Material: brass