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940E Series Electric Motor Control Valve
Brand: Trerice Gauges & ValvesThe Trerice 940E Series Control Valve uses a 24 Volt power supply (AC or DC) to proportionally stroke the valve via an electric motor drive actuator.
The actuator will drive the valve stem up or down (to open or close the valve) in relation to a factory set 2-10 Vdc input signal (field switchable to 4-20 mA) from a controller.
These electric motors can be specified to “fail-open” or “fail-closed” should a loss of control signal or actuator supply power occur.
Actuators are available in two sizes: “25” for standard applications and “26” which provides for increased close-off capabilities and is required for use on some larger size valves.
For optimal performance, the service conditions (medium, flow, temperature, inlet and outlet pressures) of the application must be considered when selecting a valve.
Please refer to the Valve Selection Section of this catalog. Consult the Valve Selection tables for the capabilities of a particular valve/actuator assembly.
Improper application may cause failure of the valve, resulting in possible personal injury or property damage.
Features- Fail Open or Closed
- Cast Aluminum Construction
- ½" - 6" Valve Sizes
Specifications
Brand
Actuators
- 25, 26
Construction
- Aluminum Die Cast Yoke, Plastic Housing
Power Supply
- 24 Vac, ± 20 % 50/60 Hz, 21 VA or 24 Vdc, ± 10 %, 21 VA
Input Signal
- 2 - 10 Vdc (Field Switchable to 4-20 mA)
Fail Position
- Stem-Out (Open), Stem-In (Closed)
- Manual Over-Ride Feature Included with all Models
Stroke Time (No Lead)
- Controlled Stroke: 90 seconds
- Fail-Safe Stroke: 35 seconds
Protection
- NEMA 2 (Indoor Only)
Maximum Temperature
- Ambient: +32° F to +122° F (0-50° C)
- Process Flow: See Specific Valve
Humidity
- Maximum: 95 % Relative Humidity
Approximate Shipping Weight
- 940B: 45 lbs (20 kg)
- 940C: 86 lbs (39 kg)
Documentation
Data Sheets
- 940E 3-Way Valve - Bronze Datasheet pdf 177 KB
- 940E 3-Way Valve - Cast Iron Datasheet pdf 179 KB
- 940E 3-Way Valve - Stainless Steel Datasheet pdf 119 KB
- 940E Series Electric Motor Control Valve Datasheet pdf 201 KB
- 940E Valve Body - Bronze Single Seat Datasheet pdf 95 KB
- 940E Valve Body - Cast Iron Double Seat Datasheet pdf 115 KB
- 940E Valve Body - Cast Iron Single Seat Datasheet pdf 106 KB
- 940E Valve Body - Stainless Steel Single Seat Datasheet pdf 95 KB