4" Explosion Proof High Performance Butterfly Valve 24 VDC, EPS Positioner

Valworx 589404A explosion proof high performance butterfly valve is used for positioning control of water, air, oil, and other media compatible with the materials of construction. Standard unit is power-to-open and power to close, stays in last known position with loss of power. On receipt of a continuous voltage signal, the motor runs and via a self-locking gear drive rotates the disc. The motor is stopped by internal cams striking limit switches. On receipt of a reversing continuous signal, the motor turns in the opposite direction reversing the valve position.

The valve is direct mounted to the actuator using the international standard ISO5211 mounting pad. Rugged unique integral motor/housing design provides higher torque in a very small package. Actuator certified for UL Class I Div I Groups C & D, and are tested to rigorous UL and CSA standards and certified by CSA.

High Performance Butterfly Valve Standard Features

316 stainless steel (CF8M) body

Double offset design greatly reduces seal wear.

17-4PH stainless steel, single piece shaft

RPTFE valve seats and stem seals

Heavy duty, single piece cast and machined disc with integral mounting sleeve

Bi-directional seal design ensures increased sealing force in either flow direction

Integral ISO 5211 mounting pad eliminates additional mounting brackets

Electric Actuator Standard Features

Explosion proof rated for UL Class I Div I Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC T5 Gbs

Rugged Type 4X weatherproof aluminum alloy enclosure

Visual valve position indicator

Manual override

Heavy duty motor with overload protection

Self-locking all metal gear drive, no additional brake required

CSA Listed per UL429 and CSA C22.2, CE mark as well as ExP ratings listed above

Options (see Accessories tab)