TOYO-OKI AD-SL231DE-303-DD2 Pneumatic Dual Solenoid Directional Control Valve

Brand: TOYO-OKI / TOYOOKI
Manufacturer: TOYO-OKI (now associated with JTEKT Fluid Power Systems)
Model Number: AD-SL231DE-303-DD2
Product Type: Dual Air Solenoid Directional Control Valve
Category: Pneumatic Components → Pneumatic Valves → Solenoid Directional Control Valves

The TOYO-OKI AD-SL231DE-303-DD2 is a dual air solenoid directional control valve from the AD-SL231D / AD-SL231DE series. The manufacturer describes this series as high-response pneumatic valves developed from extensive experience in press-machine applications, particularly for air clutch and air brake control. (JTEKT Fluid Power Systems)

Product Details

The AD-SL231DE series is designed for pneumatic control applications where rapid response, reliable switching and controlled exhaust characteristics are important. TOYO-OKI/JTEKT states that the series is available for small, medium, large and high-speed presses. (JTEKT Fluid Power Systems)

The specific AD-SL231DE-303E-DD2 configuration is documented with:

• P and A ports: Rc3/8

• E port: Rc3/4

• Effective sectional area: P→A 20 mm²; A→E 125 mm²

• Operating pressure: 0.2–0.7 MPa

• Operating temperature: 5–40°C

• Response: ON ≤ 0.033 seconds; OFF ≤ 0.010 seconds

• Operating frequency: up to 3 cycles/second

• Weight: approximately 2 kg

These specifications are published for AD-SL231DE-303E-DD2. Because your supplied model is written AD-SL231DE-303-DD2, rather than AD-SL231DE-303E-DD2, the exact suffix/configuration should be confirmed against the valve nameplate or manufacturer's catalogue before publishing these specifications as belonging to the exact unit. (Monotaro)

Features

• Dual-solenoid pneumatic directional control design

• High response performance

• Designed for press-machine pneumatic systems

• Suitable for air clutch and air brake control

• Quick exhaust characteristics

• Designed to provide stable and precise stopping control

• DIN-standard solenoid connection on the newer design

• IP67 protection for the coil block

• Low-power solenoid design

• Manual override for maintenance

• Optional monitoring configurations are available within the AD-SL231D/DE family (JTEKT Fluid Power Systems)

Applications

The TOYO-OKI AD-SL231DE series is particularly suitable for:

• Mechanical press machines

• High-speed press machines

• Stamping machinery

• Air clutch control

• Air brake control

• Industrial pneumatic control systems

• Manufacturing machinery

• OEM machinery

• Automated production equipment

Verified Specifications

* Verification note: Manufacturer/technical sources list the configuration as AD-SL231DE-303E-DD2. Your requested part number is AD-SL231DE-303-DD2. Please verify the complete model designation from the product nameplate before ordering or replacing the valve. (Monotaro)

Model Number Structure / Related Configurations

The AD-SL231D/AD-SL231DE family includes multiple port-size, solenoid and optional configuration variants. Manufacturer documentation identifies configurations including:

• AD-SL231D(E)-303E

• AD-SL231D(E)-304E

• AD-SL231D(E)-406

• AD-SL231D(E)-506

• AD-SL231D(E)-508

• AD-SL231D(E)-710

• AD-SL231D(E)-712

• AD-SL231D(E)-916

Different suffixes can represent different electrical/monitoring configurations, so they should not be treated as interchangeable without verification. (JTEKT Fluid Power Systems)

Related Models

• AD-SL231D-303D-DD2

• AD-SL231DE-303E-DD2

• AD-SL231DE-303E-DA1

• AD-SL231DE-303E-DA2

• AD-SL231DE-303E-DA3

• AD-SL231DE-303E-DA4

• AD-SL231D-304E series

• AD-SL231DE-304E series

• AD-SL231D-508 series

• AD-SL231DE-508 series

Alternative Models

For replacement selection, alternatives should be selected based on:

• Port size

• Operating pressure

• Response requirements

• Solenoid voltage

• Electrical connector

• Monitoring/micro-switch configuration

• Mounting arrangement

• Pneumatic circuit function

Do not substitute another AD-SL231 model solely because the model number looks similar.

FAQ

What is TOYO-OKI AD-SL231DE-303-DD2?

It is a dual air solenoid directional control valve in the TOYO-OKI AD-SL231DE series, primarily associated with pneumatic control applications such as press-machine air clutch and brake systems. (JTEKT Fluid Power Systems)

Is AD-SL231DE-303-DD2 a hydraulic valve?

No. It is a pneumatic/air solenoid directional control valve, not a conventional hydraulic directional valve.

What is the AD-SL231DE used for?

It is commonly used for pneumatic control of air clutches and air brakes, particularly on industrial press machinery. (JTEKT Fluid Power Systems)

Does the AD-SL231DE series have IP67 protection?

Yes. TOYO-OKI/JTEKT states that the newer solenoid design provides IP67 waterproof protection for the coil block. (JTEKT Fluid Power Systems)

What is the operating pressure?

For the documented AD-SL231DE-303E-DD2 configuration, the operating pressure is 0.2–0.7 MPa. (Monotaro)

What are the port sizes?

For the documented 303E-DD2 configuration, P and A are Rc3/8, while E is Rc3/4. (Monotaro)

Where can I buy TOYO-OKI AD-SL231DE-303-DD2 in Malaysia?

ASIA-MECH HYDRO-PNEUMATIC (M) SDN BHD can assist with sourcing and supply enquiries for TOYO-OKI/JTEKT pneumatic valves. Send us the complete model number, nameplate photograph and required quantity so the exact configuration can be checked.

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Enquiry: Please provide the exact TOYO-OKI AD-SL231DE-303-DD2 model number and a photo of the nameplate when requesting a quotation. This helps ASIA-MECH verify the correct valve configuration and avoid supplying an incorrect variant.