Yuken Type CRG & RG Series Relief Valve | CRG-03 CRG-06 CRG-10 | Subplate Mounted

Yuken Type CRG & RG Series Subplate Check Relief Valves

Product Overview: The CRG and RG Series Check Relief Valves are multi-functional components designed to provide precise pressure regulation combined with free reverse flow within hydraulic systems. Utilizing a subplate mounting design that complies with international industrial standards, these valves allow for compact integration onto hydraulic manifolds. The core function is to act as a relief valve to limit system pressure in one direction while allowing unrestricted flow through the integrated check valve in the opposite direction.

This category features essential models ranging from CRG-03 (3/8″) to CRG-10 (1-1/4″), including specialized configurations like RG-03-3-32-PG. They are the premier choice for plastics machinery, hydraulic presses, metal-cutting machine tools, and various hydraulic power units requiring dependable pressure overload protection.

Key Technical Advantages:

• Dual-Function Integration: Combines relief and check functions into a single body, simplifying piping layout, reducing potential leak points, and lowering overall system costs.

• Exceptional Regulation Sensitivity: Precision-ground spool components ensure rapid response within the set pressure range, effectively protecting the system from overpressure spikes.

• High-Pressure Stability: Rated for operating pressures up to 21 MPa (210 Bar), maintaining minimal pressure override even under high-frequency operation.

• Low-Pressure Drop Check Valve: Features a large-diameter internal poppet to ensure minimal resistance during free reverse flow, reducing system heat and energy consumption.

Detailed Specifications & Parameters:

• Core Series: Yuken Type CRG & RG Check Relief Valves.

• Featured Model Matrix: CRG-03-50-10, CRG-03-04-50, CRG-06-5-50, CRG-10-5-30, RG-03-3-32-PG.

• Core Performance Specs:

  • Nominal Sizes: 03 (3/8″), 06 (3/4″), 10 (1-1/4″).

  • Max Operating Pressure: Rated at 21 MPa (210 Bar / 3,000 PSI).

  • Pressure Adjustment Ranges: Multiple spring grades available (e.g., Codes -5, -3) for fine-tuned control from low to high pressure.

  • Design Sequences: 30, 32, and 50 series.

  • Mounting Type: ISO standard subplate mounting.