TOKYO KEIKI EPCG2-01-175-11 Proportional Pressure Control Valve
TOKYO KEIKI TOKIMEC EPCG2-01-175-11 Proportional Pressure Control Valve
The TOKYO KEIKI TOKIMEC EPCG2-01-175-11 is a direct-operated proportional solenoid relief valve designed to control hydraulic circuit pressure in proportion to the electrical input current.
The valve is intended for small-flow hydraulic systems and can also provide pilot-pressure control for pilot-operated pressure valves or variable-displacement pumps. The 175 pressure-range code specifies a maximum adjustable pressure of 17.5 MPa.
Proportional Pressure Control
Increasing the solenoid input current increases the controlled hydraulic pressure according to the valve's input-current-to-pressure characteristic. A suitable proportional valve controller is required to provide a stable and correctly regulated current signal.
A manual pressure-control knob is provided for initial adjustment or temporary operation when no input current is available. The knob must be returned counterclockwise before normal electromagnetic control is resumed.
Technical Specifications
| Brand | TOKYO KEIKI / TOKIMEC |
| Model | EPCG2-01-175-11 |
| Valve Type | Direct-operated proportional solenoid relief valve |
| Pressure Range Code | 175 |
| Maximum Adjustable Pressure | 17.5 MPa |
| Maximum Working Pressure | 21 MPa |
| Operating Flow Range | 0.3 to 1.5 L/min |
| Rated Current | 1 A |
| Coil Resistance | 14 Ω |
| Hysteresis | Less than 3% when used with the specified controller or equivalent |
| Repeatability | Less than 1% when used with the specified controller or equivalent |
| Allowable T-Port Back Pressure | 0.2 MPa |
| Electrical Connection | DIN 43650 connector; coil terminals are non-polarized |
| Mounting Method | Gasket mounting |
| Approximate Weight | 2.5 kg |
| Design Number | 11 |
Installation and Commissioning Notes
- Bleed all air from the valve before commissioning to obtain stable pressure control.
- Maintain a minimum control flow of 0.3 L/min; pressure may become unstable below this value.
- Connect the T port directly to the tank and keep back pressure below 0.2 MPa.
- Keep the end of the tank-return pipe below the hydraulic-fluid level.
- Use a proportional controller capable of supplying a regulated current up to 1 A.
- The mounting bolts, subplate and external controller are separate items unless explicitly included.
Selection and Ordering Notes
The EPCG2-01-175-11 controls pressure up to 17.5 MPa. It must not be confused with the EPCG2-01-210-11, which provides a maximum adjustable pressure of 21 MPa.
Confirm the complete model code, pressure code, connector, nameplate and included accessories before shipment. Listings specifying a 14 MPa maximum for this exact 175 model should be treated as having inconsistent technical data.
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