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Solenoid Valve Specifications and Dimensions: 2S025-050 Series
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Valve Model |
2S025 |
2S040 |
2S050 |
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Valve Type
|
2 Way Normally
Closed (NC) |
|
Action |
Direct Acting |
|
Cv (Orifice) |
|
0.5 (5mm) |
|
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Operating
Pressure |
0 to 150 PSI |
0 to 100 PSI |
0 to 100 PSI |
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Operating
Temperature |
NBR Seal:
-20 to 80°C
Viton Seal: -10 to 120°C |
NBR Seal: -20 to 80°C
Viton Seal: -10 to 120°C |
Viton Seal: -10
to 120°C |
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Port Size (NPT) |
1/4 |
3/8 |
1/4 |
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Body Materials |
Stainless Steel |
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Seal Materials:
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NBR (Options:
EPDM, Viton
) |
Viton
(Options: EPDM, NBR) |
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Coil Protection
Insulation Class |
H Class IP65
|
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Coil Duty
|
100% ED
|
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Coil Power
|
20W |
14W |
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Electrical
Connections |
DIN |
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Service |
Air, Gas,
Liquid, Vacuum Steam (with Viton Seal) |
Air, Gas,
Liquid, Vacuum, Steam |
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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. |
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2S025-050 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.
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Electrical Coil Connections |
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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. |
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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. |
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