SA-G01-A3X-R-D2-30 | NACHI Solenoid Valve 35MPa 80L/min 24VDC

Product Overview

The SA-G01-A3X-R-D2-30, SS-G01-A3X-R-C2-30, and SS-G01-H5-R-C2-30 are wet-type solenoid-operated directional control valves from the NACHI SA/SS Series G01 platform. Featuring a wet-type solenoid design—where the movable iron core operates in hydraulic fluid for lubrication and cushioning—this series delivers exceptional wear resistance and extended service life. The valve body conforms to ISO 4401-03-02-0-05 (CETOP 03 / NG6) mounting interface standards, ensuring drop-in interchangeability with industry-standard counterparts.

Every unit supplied undergoes 100% simulated real-world condition testing to guarantee reliable performance under rated pressure and flow. The product line carries CE (Europe), UL (U.S.A.), and CSA (Canada) safety approvals.

Technical Specifications

Model: SA-G01-A3X-R-D2-30

• Series: NACHI SA Series (DIN connector type)

• Valve Size: G01 (CETOP 03 / NG6)

• Spool Type: A3X (3-position, 4-way, closed center)

• Max. Working Pressure (P, A, B ports): 35 MPa (5,075 psi)

• Allowable Back Pressure (T port): 21 MPa

• Max. Flow Rate (A3X spool): 80 L/min

• Solenoid Type: DC wet-type (D type)

• Supply Voltage: DC24V

• Holding Power Consumption: 19.8W

• Allowable Voltage Range: 21.6–26.4V

• Electrical Connection: DIN connector EN 175301-803-A

• Design Number: 30

• Weight: Approx. 1.5 kg

• Certifications: CE, UL, cUL

• Mounting Interface: ISO 4401-03-02-0-05

Model: SS-G01-A3X-R-C2-30

• Series: NACHI SS Series (centralized terminal box type)

• Valve Size: G01 (CETOP 03 / NG6)

• Spool Type: A3X (3-position, 4-way, closed center)

• Max. Working Pressure (P, A, B ports): 35 MPa (5,075 psi)

• Allowable Back Pressure (T port): 21 MPa

• Max. Flow Rate (A3X spool): 80 L/min

• Solenoid Type: AC wet-type with built-in rectifier (C type)

• Supply Voltage: AC220V (50/60Hz)

• Holding Power Consumption: 20.7W

• Allowable Voltage Range: 180–220V

• Electrical Connection: Centralized terminal box

• Design Number: 30

• Weight: Approx. 1.5 kg (estimated, comparable to SA series)

• Certifications: CE, UL, cUL

• Mounting Interface: ISO 4401-03-02-0-05

Model: SS-G01-H5-R-C2-30

• Series: NACHI SS Series (centralized terminal box type)

• Valve Size: G01 (CETOP 03 / NG6)

• Spool Type: H5 (3-position, 4-way, P port blocked in center)

• Max. Working Pressure (P, A, B ports): 35 MPa (5,075 psi)

• Allowable Back Pressure (T port): 21 MPa

• Max. Flow Rate (H5 spool): 100 L/min

• Solenoid Type: AC wet-type with built-in rectifier (C type)

• Supply Voltage: AC220V (50/60Hz)

• Holding Power Consumption: 20.7W

• Allowable Voltage Range: 180–220V

• Electrical Connection: Centralized terminal box

• Design Number: 30

• Weight: Approx. 1.5 kg (estimated, comparable to SA series)

• Certifications: CE, UL, cUL

• Mounting Interface: ISO 4401-03-02-0-05

• Special Note: H-series solenoid is mounted on the opposite side (SOL a side) from the illustration

Key Technical Advantages

1. Wet-Type Solenoid Design – Extended Service Life & Silent Operation

The wet-type solenoid design immerses the movable iron core in hydraulic fluid, which simultaneously provides lubrication and cushioning. Compared to conventional dry-type solenoids, this design drastically reduces wear, extending service life significantly while delivering exceptionally low switching noise.

2. Innovative Fluid Reaction Compensating Mechanism – Reliable Switching

A patent-pending fluid reaction compensating mechanism ensures reliable valve spool switching even under high-pressure, high-flow conditions. This engineering innovation guarantees precise directional response at extreme operating envelopes.

3. Industry-Leading Energy Efficiency – 25% Power Reduction

The DC24V configuration consumes only 19.8W holding power—a 25% reduction from previous generation models—with coil surface temperature lowered by approximately 30°C. The AC with rectifier configuration consumes 20.7W. These energy savings contribute directly to overall equipment efficiency.

4. Drop-In Interchangeability & Modular Maintenance

The valve body, centralized terminal box, and coils are fully interchangeable with conventional 30-design products as kit assemblies. Coils feature a plug-in design for tool-free replacement. Optimized wiring space accommodates 4-pin M12 connector options with improved waterproofing and insulation performance.

Application Areas

• Injection Molding Machines – Clamping, ejection, and injection directional control

• Die-Casting Machines – High-pressure casting hydraulic system directional control

• Metal Forming Equipment – Presses, bending machines, shears

• Construction & Mobile Machinery – Excavators, wheel loaders hydraulic systems

• Machine Tool Hydraulics – Machining centers, CNC equipment auxiliary functions

• Marine & Port Machinery – Deck machinery, hatch cover hydraulic systems

• Wind Power Equipment – Pitch control and yaw drive hydraulic control units

Expert Maintenance Tips

Installation Guidelines:

1. Fluid Cleanliness Control – Maintain system fluid cleanliness at ISO 4406 18/16/13 (NAS 1638 Class 8) or better to protect spool-to-body clearances and prevent sticking failures.

2. Mounting Surface Preparation – Thoroughly clean the valve base and manifold mounting surface before installation. Tighten mounting bolts in a cross pattern using a torque wrench; recommended torque is 5–7 N·m (refer to ISO 4401-03-02-0-05 for details).

3. T-Port Back Pressure Limitation – Maximum allowable T-port back pressure is 21 MPa. Exceeding this limit may impair shifting performance. Consider a dedicated return line for high-back-pressure systems.

4. Voltage Verification – D2 type requires DC24V (allowable range: 21.6–26.4V); C2 type requires AC220V with built-in rectifier (allowable range: 180–220V). Confirm supply voltage is within specified range—over-voltage will burn out the coil, while under-voltage will cause unreliable shifting.

5. H5 Model Special Note – For SS-G01-H5-R-C2-30, the solenoid is mounted on the opposite side (SOL a side) from the illustration. Pay special attention to orientation markings during installation.

Routine Maintenance:

• Periodically inspect coil terminal connections and verify indicator lights are functioning

• Check spool shifting smoothness every 2,000 operating hours or per equipment maintenance schedule

• Always disconnect power before coil replacement and verify new coil matches the original specification

• If shifting delay or abnormal noise is observed, first inspect fluid cleanliness and system pressure