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CLARK SOLUTIONS
Model 1390, 2-Way, NC or NO Solenoid Valve
1/4”, 3/8” & 1/2” Pipe Size, Pilot Operated
DESCRIPTION
Model 1390 two-way normally closed and normally open solenoid valves are available in brass, 304 or 316 stainless steel bodies. A variety of seal and seat materials including Acrylo-Nitrile, Neoprene®, Ethylpropylene, Viton®, and Teflon® satisfy many general industry applications. The valves employ a solenoid operated pilot valve to change valve state. This enables the valve to use the pressure at the inlet of the valve to assist in changing the valve’s state, resulting in a higher operating pressure rating. Options include weather proof housing, energized coil indicator light and manual override on main passage and on pilot orifice.
SPECIFICATIONS
GENERAL
Operation: Normally closed or normally open
Valve Body : Brass, AISI304 stainless steel,
AISI316 stainless steel
Valve Life: > 1,000,000 cycles, field rebuild kits
available
Valve Seals & Seats: See Table 2
Connections: 1/4”, 3/8” & 1/2”, BSP or NPT
Operating Voltage - 12 VDC, 24 VDC/VAC,
120 VAC, 60Hz
Standard Solenoid Housing: Encapsulated,
includes DIN 43650 connector (PG-9)
Wire Connection: Screw terminal
Optional IP65/NEMA4 Weather Proof:
Encapsulated coil,1/2” NPT potted conduit
connection with flying leads
Coil Rating:
Class F coil to 80ºC: AC 60 Hz, 13 W;
DC, 19 W
Class H Coil to 180°C: AC 60 Hz, 13 W;
DC, 19 W
Options: Manual operation, weatherproof
housing, energized coil indicator light
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| Table 1 |
| Wetted Materials |
| Body |
Plunger |
Plunger Tower |
Springs |
Diaphragm |
Inner-Diaph. Material |
Piston |
| Brass |
AISI 430F |
304L or 305 SS |
Copper |
See Table 2 |
- |
AISI 304 |
| AISI 304 |
AISI 430F |
304L or 305 SS |
Silver & 302 SS |
See Table 2 |
AISI 304 |
AISI 304 |
| AISI 316 |
AISI 430F |
304L or 305 SS |
Silver & 302 SS |
See Table 2 |
AISI 316 |
AISI 316 |
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| Table 2 |
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Seat Material
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Acrylo Nitrile
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Neoprene® |
Ethyl-propylene |
Viton® |
Teflon® |
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Maximum temperature
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+80ºC |
+80ºC |
+150ºC |
+180ºC |
+180ºC |
| Uses |
Water, air, light oils, kerosene. Low and medium vacuum. |
Oxygen, alcohol, argon, other non-corrosive light gases and liquids. Freon 12. |
Water steam, hot water, acetone. |
Benzene, naphtha, aromatics, etc.. Hot gases. High vacuum. |
Steam, hot oils, corrosive fluids. |
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| File LR87427 2M - LR108921-1 |
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| File MH16855 Vol. 2 Sec. 2 |
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| Connection |
Orifice Dia. (mm) |
Cv Coef. (GPM) |
Kv Coef. (m3/h) |
Weight (kg) |
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| Brass body, Normally Closed- Minimum differential pressure with Teflon seat: 0.5 bar- others: 0.2 bar- Maximum differential pressure: 15 bar |
| 1/4” |
6 |
0.936 |
0.80 |
0.70 |
| 3/8” |
9 |
0.760 |
0.65 |
0.65 |
| 1/2” |
12 |
1.050 |
0.90 |
0.90 |
| Brass body, Normally Open- Minimum differential pressure with Teflon seat: 0.5 bar- others: 0.2 bar- Maximum differential pressure: 10 bar |
| 1/4” |
6 |
0.936 |
0.70 |
0.70 |
| 3/8” |
9 |
0.760 |
0.65 |
0.65 |
| 1/2” |
12 |
1.050 |
0.90 |
0.90 |
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Piloted valves use the fluid pressure to assist in opening and closing the valve, allowing the valve to operate against higher pressures than a direct acting valve.
When the pilot valve is closed, the pressure builds up via a small passage from the upstream side of the valve piston/seat. The valve seat is also acted on by a spring.
When the pilot valve opens, a passage that bypasses the valve piston/seat and connects downstream of the piston/seat is opened, relieving pressure from the top of the valve piston/seat. The inlet fluid pressure lifts up the piston to open the valve.
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Flow Calculation, Liquids:
Q= Flow Rate, GPM (U.S.A.)
Cv= Valve Flow Coefficient
DP= Valve Pressure Drop, PSID
G= Specific Gravity of Liquid (= 1.0 for Water)
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Standard Coil and DIN43650 Connector |
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Option YC Weather Proof Housing with 1/2” NPT Threaded Conduit Connector |
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ORDERING INFORMATION
SELECT ITEM FROM EACH COLUMN IN CHART BELOW
EXAMPLE:1390SN2-TH24DC |
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| FOR YOUR CONVENIENCE, THESE ITEMS ARE AVAILABLE ONLINE |
| Model |
Body Material |
Seat & Seal Material |
Connection |
Configuration |
Connection Threads |
Coil Type |
Voltage |
| 1390 |
B=Brass |
A=Acrylo-Nitrile |
2= 1/4" |
- = Normally Closed |
T= NPT |
F= Class F |
12DC= 12 VDC |
| S=304 SS |
V=Viton |
4= 1/2" |
H= Class H |
120AC= 120 VAC, 60 Hz |
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24DC= 24 VDC |
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| Options |
| Prefix YC= Weather Proof Housing (1/2" NPT Thread) |
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Show Discount Schedule
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| OR PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS |
| Model |
Body Material |
Seat & Seal Material |
Connection |
Configuration |
Connection Threads |
Coil Type |
Voltage |
| 1390 |
B=Brass |
A=Acrylo-Nitrile |
2= 1/4" |
- = Normally Closed |
T= NPT |
F= Class F |
12DC= 12 VDC |
| S=304 SS |
V=Viton |
4= 1/2" |
INA=Normally Open |
- = BSP |
H= Class H |
120AC= 120 VAC, 60 Hz |
| I=316 SS |
N=Neoprene |
3= 3/8" |
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24DC= 24 VDC |
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E=Ethylpropylene |
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24AC= 24 VAC, 60 Hz |
| T=Teflon |
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| Options |
| Prefix YC= Weather Proof Housing (1/2" NPT Thread) |
| Suffix M= Manual Operation, Main Orifice |
| Suffix MP= Manual Operation, Pilot Orifice |
| Coil Indicator Light= Consult Factory |
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INSTALLATION RECOMMENDATIONS
Place a strainer with a porosity < 100µ upstream of valve (see Clark Solutions Model 1359 Y Strainer).
The valve input pressure must always be greater than the valve outlet pressure.
In order for the N.C. or N.O. valve to open, the minimum pressures per specs must be maintained..
For assistance call 978-568-3400
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