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 46360 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
