1-1/4" 24V AC Electric Stainless Steel Solenoid Valve
Availability: In Stock
Technical Details
SKU
SZW-32-24VAC
Position
Normally Closed
Port Size
1-1/4" Female NPT
Voltage
24V AC
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 145 psi
Flow Rate
Cv 24 (Appx 184 GPM @ 60 PSI)
Power
23 VA / 1.00 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"
Product Overview
The SZW-32-24VAC 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 AC 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 standard 24V AC 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 AC Low-Voltage Control: Connects directly to standard HVAC transformers, Building Management Systems (BMS), 24VAC irrigation timers, and low-voltage control panels via non-polarized lead wires.
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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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High-capacity water treatment, commercial reverse osmosis (RO), whole-house/facility filtration, and bulk tank filling
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Commercial HVAC cooling towers, hydronic heating loops, boiler feed lines, and high-volume glycol circulation
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24V AC automated irrigation manifolds, greenhouse watering equipment, agricultural distribution, and rainwater harvesting
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Industrial plant process water distribution, washdown stations, and 24V AC automated chemical dosing
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Bulk diesel fuel transfer, generator day-tank filling, and oil management systems
Installation
- Align media flow with the directional arrow cast into the stainless valve body.
- The non-polarized 24V AC wire leads can connect to either AC supply conductor. 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.
