Explosion Proof Actuator Standard Features
UL Class I Div 1 Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC Gb Explosion Proof Rating EPS-Electronic Positioning System Quarter turn operation with mechanical limits Rugged Type 4X weatherproof aluminum alloy enclosure Visual valve position indicator Manual override Heavy duty motor with overload protection Thermostatic anti-condensation heater Self-locking all metal gear drive, no additional brake required Standard ISO5211 multi-flange valve mounting CSA Listed per UL429 and CSA C22.2 standards, CE mark
Valworx 581856 electric actuator with EPS- Electronic Positioning System is controlled by a 4-20mA input control signal. Changing the input control signal results in a corresponding and proportional change in the position of the actuator output drive.
The EPS system is self-calibrating which virtually eliminates "hunting" and provides an output position monitoring signal as standard. The positioning module is fully potted to help protect the electronics from vibration and moisture. Actuator will remain in the last known position with loss of electric power. With main power on and a loss of control signal, actuator can be set to fail closed, fail open or fail in place.
These rugged electric actuators are typically used to automate quarter turn ball valves, butterfly valves or dampers. The actuator is easy to install with international standard ISO5211 multi-flange mounting and a double square output drive. Unique integral motor/housing design provides higher torque in a very small package. Actuators are tested to rigorous UL and CSA standards and certified by CSA. Anti-condensation heater is standard and will help protect actuator against damage caused by condensation.
Wiring connection is via two 1/2" NPT threaded ports using Exp rated connectors or pipe (not included).
Valworx 581856 electric actuator with EPS- Electronic Positioning System is controlled by a 4-20mA input control signal. Changing the input control signal results in a corresponding and proportional change in the position of the actuator output drive.
The EPS system is self-calibrating which virtually eliminates "hunting" and provides an output position monitoring signal as standard. The positioning module is fully potted to help protect the electronics from vibration and moisture. Actuator will remain in the last known position with loss of electric power. With main power on and a loss of control signal, actuator can be set to fail closed, fail open or fail in place.
These rugged electric actuators are typically used to automate quarter turn ball valves, butterfly valves or dampers. The actuator is easy to install with international standard ISO5211 multi-flange mounting and a double square output drive. Unique integral motor/housing design provides higher torque in a very small package. Actuators are tested to rigorous UL and CSA standards and certified by CSA. Anti-condensation heater is standard and will help protect actuator against damage caused by condensation.
Wiring connection is via two 1/2" NPT threaded ports using Exp rated connectors or pipe (not included).
| Type | Explosion Proof Positioner |
|---|---|
| Working Rotation | 90° (quarter turn) |
| Max Torque | 442 in lbs (50Nm) |
| Voltage | 110 VAC 50/60 Hz |
| Current Rating | 0.27A (full load amps) |
| Cycle Time | 20 seconds per 90° rotation (no load) |
| Duty Cycle | 70% |
| Enclosure | Aluminum alloy, polyester painted, SS fasteners |
| Enclosure Protection | Type 4X (IP67) weatherproof |
| Manual Override | 5mm hex drive with protective cover |
| Motor Protection | Thermal overload |
| Temperature Range | -13 to +131 °F (-25 to +55 °C) |
| Valve Position Confirmation | 4-20mA output monitoring signal (same type as input signal) |
| Anti-Condensation Heater | 4 watts thermostatically controlled |
| ISO5211 Mounting | F03, F05, F07 (multi-flange) |
| Output Drive | 14mm double square (female) |
| Electrical Connections | Two 1/2" NPT threaded ports. Requires Exp rated connector or pipe (not included). |
| Approvals | UL Class I Div I Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC T5 Gb |
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5818 Series Product Data Sheet 5818 Series Explosion Proof Actuators with EPS Positioner - Installation Instructions 5818 Series Explosion Proof Certificate of ComplianceWe provide CAD models in virtually every format. Can't find exactly what you're looking for? Please email sales@valworx.com to request the specific files you need. Include the stock number and any accessories with your request.
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