|
Solenoid Valve Specifications and Dimensions: 2W025-040 Series
|
Valve Model |
2W025 |
2W040 |
|
Valve Type
|
2 Way Normally
Closed (NC) |
|
Action |
Direct Acting |
|
Cv (Orifice) |
0.25 (2.5mm) |
|
|
Operating
Pressure |
0 to 150 PSI |
0 to 100 PSI |
|
Operating
Temperature |
Standard: NBR Seal:
-20 to 80°C; Option:
Viton Seal: -10 to 120°C |
|
Port Size (NPT) |
1/4 |
|
|
Body Materials |
Brass |
|
Seal Materials:
|
NBR (Options:
Viton
) |
|
Coil Protection
Insulation Class |
H Class IP65
|
|
Coil Duty
|
100% ED
|
|
Coil Power
|
20W |
|
Electrical
Connections |
DIN |
|
Service |
Air, Gas,
Liquid, Vacuum Steam (with Viton Seal) |
|
ALL Standard valves are supplied with CONTINUOUS DUTY COILS
of the proper class of insulation for the service indicated on the valve.
The coil temperature may become hot after being energized for extended
periods, but it is normal. Smoke or burning odor indicates excessive coil
temperature and should disconnect the power to the coil immediately.
VOLTAGES: Standard: 12-24V DC and 24-110-220-230V/50-60 Hz AC. Voltage
tolerances: +10% –5% for DC, +10%-15% for AC; .
SERVICE LIFE: The service life of the solenoid valve depends on the
operating conditions such as pressure, temperature, type of medium and the
voltage. Normally the STC solenoid valves are reliable for more than 5
million cycles. |
|
2W012-040 are DIRECT ACTING
solenoid valves and do not require a minimum operating differential
pressure. As shown below when the coil is energized (right diagram), it
lifts the solenoid plunger, which normally rests on the valve seat and lifts
it to open the main valve orifice. When the coil is de-energized (right
diagram), the
spring force the plunger return to the valve seat to close the valve
orifice.
 |
|
|
|
|
|
Electrical Coil Connections |
|
For DIN Coil |
To connect DIN coil:
1. Remove the Philip screw from the plastic housing and unplug it from the
DIN coil.
2. From the screw opening, push the terminal block out from the plastic
housing.
3. Note the 1, 2 and ground markings on underside of DIN enclosure.
4. For DC DIN Coil, Connect 1 to Positive, 2 to Negative.
5. For AC DIN Coil, connect 1 to HOT wire, 2 to Neutral wire, and if
required connect ground to ground wire. |
|
For Grommet Coil |
To connect Grommet coil:
1. For DC Coil, connect one of the two wires to Positive, and the
other wire to Negative.
2. For AC Coil, connect one of the two wires to HOT wire, and the other wire
to neutral wire. |
|
