Dwyer EVA3 - Manual

W.E
P.O.
Series EVA2 and EVA3 Electric Actuators
Bulletin V-8
Specifications - Installation and Operating Instructions
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: [email protected]
The Series EVA2 and EVA3 Electric Actuators are designed to mount
directly onto the Series GV globe valves, creating a complete, low cost,
and compact control valve package. Floating or modulating control inputs
are available, and the 24 VAC synchronic motor includes a magnetic
clutch to protect the motor in stall conditions. Actuators are ruggedly
constructed with a fire-proof ABS housing and robust aluminum bracket.
Features include a visual position indicator and manual override to make
this actuator an excellent choice for any size area, large or small.
FEATURES
• Manual override
• Compact size
• Floating control or selectable 0-10 VDC or 4-20 mA proportional
control
• Reversible direction on proportional models
• Magnetic clutch protects motor in stall conditions
SPECIFICATIONS
SERIES EVA2, EVA3
Output Force: EVA2: 225 lb (1000 N); EVA3: 337 lb (1500 N).
Power Requirements: 24 VAC.
Power Consumption: EVA2F (EVA3F): 5.5 VA; EVA2M (EVA3M):
7.5 VA.
Cycle Time: EVA2F (EVA2M): 97 sec/in. (3.8 sec/mm); EVA3F
(EVA3M): 164 sec/in. (6.45 sec/mm).
Enclosure Rating: IP40.
Housing Material: Fire-proof ABS plastic (UL94V-0).
Bracket Material: Aluminum.
Operating Temperature: 36 to 131°F (2 to 55°C).
Storage Temperature: -4 to 149°F (-20 to 65°C).
Humidity Limit: <90%, non-condensing.
Electrical Connection: Screw terminal.
Modulating Input: 0 to 10 VDC or 4 to 20 mA.
Weight: EVA2F (EVA3F): 2.43 lb (1.1 kg); EVA2M (EVA3M): 3.31 lb
(1.15 kg).
INSTALLATION
1. Tightly screw the valve connector on the valve body. Please pay
attention to the direction of the connector.
2. Install the actuator bracket on the valve connector.
3. Insert the U-type connector into the bracket, and lock the connector
nut.
4. Lift up the valve stem and put the lock nut and indicator guide onto it,
then rotate the connecting rod of the actuator and let it rotate onto the
valve stem. Use spanner to lock the locknut after adjusted into position.
5. In vertical installations, leave enough head room to unscrew the
actuator prior to servicing the valve body.
6. Wire the unit according to the appropriate Wiring Diagram.
Model
EVA2F
EVA2M
EVA3F
EVA3M
Actuator
Action
Floating
Modulating
Floating
Modulating
Output
Force
225 lb
(1000 N)
225 lb
(1000 N)
337 lb
(1500 N)
337 lb
(1500 N) Valve
Size
1˝ to 2-1/2˝
1˝ to 2-1/2˝
1˝ to 2-1/2˝
1˝ to 2-1/2˝
Compatible
Valve Models
GV2__ , GV3__
GV2__ , GV3__
GV2__, GV3__
GV2__, GV3__
Ø4-1/32
[102.4]
4-57/64
[124.22]
3-15/16
[100]
KNOB
POWER
CONNECT
CONNECTOR
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