Butterfly Valve with Matryx Air Actuator, Double Acting, 4"

Double Acting

Keystone Series 221 Butterfly Valves with MATRYX Air Actuators. Double acting style (air to open and close). Valves include cast iron bodies, EPDM seats, 316SS stainless discs and 416 stainless stems. Valves are rated to 250 PSI and 250 Deg. F. Air actuators are direct mount (no brackets) and include 1/4" FPT air port connections.

Designed to open/close valves at 80 PSI in most applications, 120 PSI maximum.

NOTE: The EPDM seats used in these valves are not suit­able for use with Diesel Fuel. Buna & Viton® available.