2/2 Way Solenoid Valve 3/4″ SST | 24V DC Normally Closed

The 2/2-Way Stainless Steel Solenoid Valve provides electrically operated on-and-off flow control for compatible commercial water-treatment, filtration, and industrial liquid-handling systems. This configuration combines 3/4-inch connections, a corrosion-resistant stainless steel valve body, a 24V DC solenoid coil, and normally closed operation.

When the coil is de-energized, the valve remains closed to help stop liquid flow through the pipeline. Applying the specified 24V DC power energizes the solenoid and opens the valve, subject to its operating-pressure and flow-direction requirements. This fail-closed function makes the valve suitable for automated supply, filling, shutoff, equipment protection, and process control applications.

The low-voltage DC coil can be integrated into properly engineered systems using a compatible DC power supply, relay, timer, level switch, pressure switch, control panel, battery-supported control system, or programmable controller. Its 3/4-inch connection size is suitable for many commercial and industrial installations requiring dependable automated flow management.

The stainless-steel body provides mechanical strength and corrosion resistance for approved fluids and operating environments. Potential applications include commercial reverse osmosis systems, industrial filtration equipment, process-water lines, compatible chemical-feed assemblies, pretreatment systems, storage-tank filling equipment, and automated water-supply systems.

Confirm the connection standard, stainless steel grade, voltage tolerance, current draw, wiring polarity, operating pressure range, minimum pressure differential, seal material, temperature rating, orifice diameter, flow coefficient, duty cycle, enclosure rating, installation orientation, and fluid compatibility before publishing these details as guaranteed specifications.

Technical Specification

Key Features

• 2/2 way normally closed (NC) operation
• Direct acting design (no minimum pressure required)
• 3/4″ DN20 connection size for high-flow applications
• Stainless-Steel valve body for corrosion resistance
• 24V DC solenoid coil
• Fast response and reliable sealing
• Suitable for continuous duty cycles
• Compact, serviceable industrial design

Applications

A 2/2 way normally closed (NC) stainless-steel solenoid valve is designed to remain closed when de-energized and open only when power is applied. This makes it ideal for applications requiring fail-safe shutoff, controlled flow, and reliable on/off operation.

Water Treatment & Filtration

• Reverse osmosis (RO) systems

• Deionization (DI) systems

• Water softeners and filtration skids

• Automatic water shutoff and feed control

• Tank filling and system isolation

HVAC & Building Systems

• Chilled water and heating water control

• Condensate and make-up water management

• Cooling tower water feed control

• Boiler feed and auxiliary water lines

Industrial & Commercial Water Control

• Process water flow control

• Equipment water supply isolation

• Automated wash-down systems

• Cooling and circulation loops

Irrigation & Agriculture

• Automated irrigation zones

• Greenhouse watering systems

• Fertilizer and nutrient delivery (compatible fluids)

• Agricultural water distribution

Pneumatic & Air Systems

• Compressed air flow control

• Air supply shutoff for machinery

• Automated air-driven equipment

OEM & Automation Equipment

• Control panels and automated machinery

• Packaging and bottling equipment

• Dispensing systems

• Safety shutoff applications

Safety & Protection Applications

• Emergency water shutoff systems

• Leak detection and flood prevention

• Fail-safe fluid isolation (power-off closed)

Shipping Information

Optimal Purity Solutions is committed to fast, reliable, and professional fulfillment for our authorized dealer network.

Fulfillment & Processing

• Order Processing: Most in-stock orders ship within 1–2 business days

• Custom/OEM Builds: Lead times vary by configuration; your sales representative will confirm timelines

Shipping Coverage

• Domestic: Nationwide shipping throughout the United States

• International: Available for qualified distributors (terms and transit times vary)

Carriers & Methods

• Shipments are sent via trusted national freight and parcel carriers

• LTL/FTL freight available for pallets and bulk orders

• Expedited shipping options available upon request

Packaging & Handling

• Products are professionally packaged to protect against damage in transit

• Palletized and freight shipments are secured and labeled to industry standards

Tracking & Support

• Tracking information is provided once your order ships

• Our logistics team is available to assist with routing, delivery coordination, and special requirements

Important Notes

• Shipping costs are calculated based on weight, dimensions, destination, and service level

• Damages or discrepancies must be reported within 48 hours of delivery

• Products are sold exclusively through authorized water treatment dealers and partners