EDG-01V-A-1-PNT22-60T234 EDG-01V-H-PN-T11-50 Yuken Proportional Relief Valve 245 bar

Product Overview

The EDG series electro-hydraulic proportional pilot-operated relief valves are precision pressure control components engineered by Yuken for industrial hydraulic systems. These valves consist of a small DC proportional solenoid combined with a direct-acting relief valve, enabling stepless proportional pressure regulation through continuous variation of input current.

In hydraulic systems, the EDG series does not function as a standalone main relief valve but rather as a pilot valve, driving the EBG series main relief valve via the remote port to achieve remote proportional pressure control. Typical applications include injection molding machines, hydraulic presses, and other automated equipment requiring frequent pressure switching and fine control.

The EDG series covers models including EDG-01V-A-1-PNT22-60T234, EDG-01-V-H-PN-T11-50, EDG-01V-C-1-PNT13-60, and EDG-01V-C-P19T17-50, featuring CETOP 03 subplate mounting. Valve bodies are manufactured from high-strength materials with precision machining, offering fast response, excellent linearity, and high repeatability.

Our complete range of Yuken EDG proportional valves strictly adheres to OEM technical standards, achieving 100% direct interchangeability with original components. Every unit undergoes 100% simulated operating condition bench testing prior to shipment, ensuring performance parameters are fully consistent with genuine Yuken products. Direct replacement of same-model Yuken valves significantly reduces equipment downtime and maintenance costs.

⚠️ Model Code Decoding (using EDG-01V-A-1-PNT22-60T234 as example) :

• ED = Electro-hydraulic proportional pilot relief valve

• G = Subplate mounting

• 01 = Valve size 01 (CETOP 03 mounting subplate)

• V = Remote control use (piloting main relief valve); without V = direct relief (rarely used)

• A = Pressure rating: A/B = 0.5~6.9MPa; C = 1.0~15.7MPa; H = 1.2~24.5MPa

• 1 = Built-in safety valve (overload protection); 0 = without safety valve

• PN = No fixed orifice at P port (standard)

• T22 = T port orifice specification

• 60/50 = Design number

• T234 = Export/sales connector suffix

Technical Specifications 

EDG-01V-A-1-PNT22-60T234

• Product Series: Yuken EDG series electro-hydraulic proportional pilot relief valve

• Model Code: EDG-01V-A-1-PNT22-60T234

• Brand: Yuken

• Product Type: Electro-hydraulic proportional pilot relief valve (remote control type)

• Maximum Operating Pressure: 24.5 MPa (245 bar)

• Pressure Adjustment Range (A rating): 0.5 – 6.9 MPa

• Allowable Flow Rate: 0.3 – 2 L/min (pilot valve, very low flow)

• Proportional Solenoid: DC24V

• Rated Current: A/B rating 800mA; C rating 900mA; H rating 950mA

• Coil Resistance: ≈ 10 Ω

• Control Signal: 0–10V / 4–20mA (requires proportional amplifier)

• Hysteresis: < 3%

• Repeatability: < 1%

• Operating Oil Temperature: -15 to +70°C

• Recommended Oil Viscosity: 20 – 200 mm²/s

• Mounting Type: Subplate mounting (CETOP 03)

• Mounting Subplate: EDGM-01-10 (dedicated)

• Mounting Bolts: M5 × 45Lg × 4 pcs

• Port Designations: P (inlet/remote pressure), T (return)

• Weight: Approx. 2 kg

EDG-01-V-H-PN-T11-50

• Product Series: Yuken EDG series electro-hydraulic proportional pilot relief valve

• Model Code: EDG-01-V-H-PN-T11-50

• Maximum Operating Pressure: 24.5 MPa (245 bar)

• Pressure Adjustment Range (H rating): 1.2 – 24.5 MPa

• Maximum Flow Rate: 2 L/min

• Minimum Flow Rate: 0.3 L/min

• Proportional Solenoid: DC24V

• Rated Current: H rating 950mA

• Coil Resistance: 10 Ω

• Hysteresis: < 3%

• Repeatability: < 1%

• Mounting Type: Subplate mounting (CETOP 03)

• Mounting Subplate: EDGM-01-10

• Weight: Approx. 2 kg

EDG-01V-C-1-PNT13-60

• Product Series: Yuken EDG series electro-hydraulic proportional pilot relief valve

• Model Code: EDG-01V-C-1-PNT13-60

• Maximum Operating Pressure: 24.5 MPa (245 bar)

• Pressure Adjustment Range (C rating): 1.0 – 15.7 MPa

• Maximum Flow Rate: 2 L/min

• Minimum Flow Rate: 0.3 L/min

• Proportional Solenoid: DC24V

• Rated Current: C rating 900mA

• Coil Resistance: 10 Ω

• Hysteresis: < 3%

• Repeatability: < 1%

• Safety Valve: Built-in (code “1”)

• Mounting Type: Subplate mounting (CETOP 03)

• Weight: Approx. 2 kg

EDG-01V-C-P19T17-50

• Product Series: Yuken EDG series electro-hydraulic proportional pilot relief valve

• Model Code: EDG-01V-C-P19T17-50

• Maximum Operating Pressure: 24.5 MPa (245 bar)

• Pressure Adjustment Range (C rating): 1.0 – 15.7 MPa

• Maximum Flow Rate: 2 L/min

• Minimum Flow Rate: 0.3 L/min

• Proportional Solenoid: DC24V

• Rated Current: C rating 900mA

• Coil Resistance: 10 Ω

• Safety Valve: Without (no “1” in code)

• Mounting Type: Subplate mounting (CETOP 03)

• Weight: Approx. 2 kg

Key Technical Advantages

1. Electro-Hydraulic Proportional Control for Stepless Pressure Regulation
The EDG series employs a compact DC proportional solenoid combined with a direct-acting relief valve structure, establishing a continuous proportional relationship between input current and output pressure. When paired with a compatible proportional amplifier (such as Yuken AMN-W-10), standard 0–10V or 4–20mA signals enable precise stepless system pressure control. Compared to conventional on/off solenoid valves, proportional control delivers significantly enhanced pressure regulation flexibility and accuracy.

2. High Accuracy and Low Hysteresis
The full series achieves hysteresis < 3% and repeatability < 1%. Precision-engineered spool and seat assemblies, combined with high-quality proportional solenoids, ensure consistent and repeatable pressure regulation across every cycle.

3. Compact Subplate-Mounted Design
Featuring CETOP 03 subplate mounting with the dedicated EDGM-01-10 mounting subplate. The compact valve body and lightweight construction (approx. 2 kg) deliver high-performance proportional control within limited installation spaces. The small footprint and fast response time (≈50 ms) make it particularly suitable for integration into automated hydraulic systems.

4. Built-in Safety Valve and Manual Emergency Override
The “1” in the model code indicates a built-in safety valve (overload protection), providing reliable overpressure protection in the event of abnormal system pressure rise. Additionally, a manual emergency pressure adjustment screw is provided on the valve front—allowing temporary manual pressure setting during power-off conditions to maintain basic system operation in the event of electrical failure.

5. 100% Direct Interchangeability and Simulated Condition Testing
All models strictly adhere to Yuken original mounting dimensions and interface standards, enabling direct drop-in replacement of original valves without piping modification or system adjustment. Every unit undergoes 100% simulated operating condition bench testing prior to shipment, ensuring consistent, stable performance at rated pressure and flow.

Application Areas

• Injection Molding Machinery: Proportional pressure control for injection molding and blow molding machines

• Hydraulic Presses: Stepless pressure regulation for hot and cold presses

• Small Hydraulic Power Units: Pilot valve driving main relief valves for remote proportional pressure control

• Hydraulic Fixtures: Precise clamping force control for workholding fixtures

• Servo Unit Pilot Pressure Control: Pilot pressure control for servo hydraulic systems

• Automated Equipment: Hydraulic systems with multiple pressure change levels in automation applications

Expert Maintenance Tips

1. Must Use a Proportional Power Amplifier
The EDG series proportional solenoid requires specific current drive—PLC direct voltage output cannot drive the solenoid. A Yuken standard proportional amplifier (such as AMN-W-10 series) is required, with input signals of 0–10V or 4–20mA.

2. Electrical Wiring Precautions
The proportional solenoid has two power wires and requires DC24V power supply—AC220V must never be connected. The PNT series connector is a DIN standard proportional valve connector; observe positive and negative polarity during wiring—reverse connection will render the valve inoperative.

3. Hydraulic Circuit Connection (Remote Control Mode)
Connect the EDG valve’s P port to the remote port of the main relief valve (EBG series). Connect the T port directly to the tank. T return line resistance should be minimized—do not install throttling valves or check valves, as back pressure can cause unstable pressure regulation or pressure drift.

4. Mounting Orientation and Sealing
Install the valve horizontally with the solenoid facing upward. Use only standard O-rings for sealing—do not apply excessive sealant, as sealant debris can enter the spool and cause sticking.

5. Oil Cleanliness Management
The EDG series pilot valve features extremely tight spool clearances and demands high oil cleanliness. Recommended system cleanliness: NAS Class 8 or higher(ISO 4406 standard). Install high-precision filters in the system return line and inspect filter elements regularly.

6. Built-in Safety Valve Setting
The built-in safety valve (code “1”) provides system overpressure protection and is preset at the factory—do not arbitrarily increase the setting. Any adjustment should only be performed by qualified technical personnel with full understanding of system operating conditions.