1-1/4" 24V DC Electric Stainless Steel Solenoid Valve
Availability: In Stock
Technical Details
SKU
SZW-32-24VDC
Position
Normally Closed
Port Size
1-1/4" Female NPT
Voltage
24V DC
Body Material
Stainless Steel
Components
Stainless Steel
Seal Material
Viton® Diaphragm
Orifice Size
32 mm
Temp Range
5 to 250°F
Pressure Range
0 to 90 psi
Flow Rate
Cv 24 (Appx 184 GPM @ 60 PSI)
Power
30 W / 1.25 Amps
Coil Connection
Lead Wires
Response Time
Fast Acting (Less than one second)
Duty Cycle
100% Duty at Rated Ambient Temperature
*Suitable Media
Water – Air - Fuel - *Etc
Weight
3 lb 15.49 oz
Height
6.02"
Length
4.13" port to port
Width
3.25"
CAD Files
Available upon Request
Product Overview
The SZW-32-24VDC is a high-flow 1-1/4" stainless steel solenoid valve engineered for automatic, zero-differential flow control of water, air, diesel fuel, glycol, and weak acids in 24V DC low-voltage systems. Constructed with a heavy-duty 304 stainless steel body and a Viton® (FKM) diaphragm seal, this 2-way normally closed valve features a semi-direct lift mechanism that operates reliably from 0 PSI up to maximum working pressure, opening automatically when energized by a 24V DC power source.
Media & Temperature Notice: Equipped with a premium Viton® (FKM) diaphragm, this valve is rated for fluid temperatures up to 250°F. Viton® provides superior resistance to diesel fuel, oils, glycol, weak acids, and aggressive fluids that degrade standard NBR rubber. Always verify chemical compatibility with both the 304 stainless steel body and Viton® seal prior to installation.
Key Features
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High-Flow 1-1/4" 304 Stainless Steel Construction: Delivers high volumetric throughput with minimal pressure drop; ideal for aggressive media, process water, and industrial environments.
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24V DC Automation & Battery Integration: Non-polarized lead wires connect directly to 24V DC PLCs, industrial control panels, 24V battery banks, and solar power circuits.
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Zero Differential Operation: Semi-direct lift design opens and seals reliably from 0 PSI (gravity feed) up to maximum working pressure.
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Normally Closed Fail-Safe: Valve automatically returns to the closed position during power loss to stop downstream fluid media flow.
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Durable Viton® Diaphragm: Handles high-temperature fluids (up to 250°F), diesel fuel, glycol solutions, and mild chemicals without swelling or deteriorating.
Common Applications
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PLC-driven industrial automation, plant process water distribution, and automated washdown stations
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24V DC solar-powered water storage tank filling, rainwater harvesting, and off-grid distribution
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High-capacity water treatment, commercial reverse osmosis (RO), and whole-facility filtration manifolds
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Bulk diesel fuel transfer, generator day-tank filling, and mobile fluid management systems
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Automated agricultural irrigation, greenhouse watering equipment, fertigation, and livestock supply lines
Installation
- Align media flow with the directional arrow cast into the stainless valve body.
- Non-polarized 24V DC lead wires can be connected in either orientation. Ensure adjacent piping is properly supported to avoid stress on the 1-1/4" NPT threads.
- For optimal service life, mount the valve with the coil facing upward.
- Install a Y-strainer or inline filter upstream to keep debris out of the diaphragm chamber.
