Butterfly Valve, Lug Style, GRL Series, 230 PSI W.P., 4"

Keystone Series GRL Butterfly Valves feature rugged quality construction ideal for most industrial applications involving water, air and dry bulk conveying, etc. These valves are for any service where a drop-tight shut-off with maximum flow area is required.

The GR series comes standard with 805 trim, 316SS disc and stem, and REPLACEABLE EPDM seats (Buna available). These "Lug" style bodies are drilled and tapped which allows for isolation and removal of downstream piping at full rated pressure, up to 230 PSI. Note these replaceable seats are not rated for full vacuum (good to 15" Hg vacuum). Also available in wafer style (GRW Series). See DU GRL Series for air actuated GRL valves. Larger sizes available.