Yuken RG Series Reducing & Relieving Valve | RG-03-B-22 | RG-06 | RCG-03/06 | RCT Series

RG & RCG/RCT Series Pilot-Operated Reducing and Relieving Valves

Product Overview:

The Yuken-style RG and RCG series are high-performance hydraulic valves that integrate both pressure reducing and relieving functions. These valves are primarily used to lower primary circuit pressure to a stable secondary setpoint. Uniquely, they also act as a relief valve if the secondary pressure rises above the setpoint due to external forces, venting excess pressure back to the tank. This dual functionality makes them the premier choice for counterbalancing, braking circuits, and precision clamping systems, offering exceptional stability and rapid response.

Featured models include: RG-03-B-22, RG-03-C-22, 06-10-HRT, RCG-03, RCG-06, and the RCT series.

Key Technical Advantages:

• Dual-Action Control Logic: Combines “Reducing” and “Relieving” in a single body, eliminating the need for an auxiliary relief valve to protect the secondary circuit.

• Superior Pressure Stability: The pilot-operated architecture ensures minimal outlet pressure deviation despite significant fluctuations in inlet pressure or flow rates.

• Low-Noise Operation: Internally optimized flow passages suppress turbulence and noise, even under high-differential pressure conditions.

• Standardized Mounting: Subplate mounting configuration ensures easy integration and seamless interchangeability with leading global brands.

Detailed Specifications & Parameters:

• Core Model Matrix:

  • RG-03-B-22: Size 03 (3/8″), Low Pressure Range B ($0.7 – 7$ MPa), Design Series 22.

  • RG-03-C-22: Size 03 (3/8″), Medium Pressure Range C ($3.5 – 14$ MPa).

  • RG-06-H-22: Size 06 (3/4″), High Pressure Range H ($7 – 21$ MPa).

  • RCG-03/06: Variant with integral check valve for free reverse flow.

• Core Technical Specs:

  • Max Inlet Pressure: Rated up to 25 MPa (250 Bar).

  • Max Flow Capacity: Size 03 approx. $50\text{ L/min}$; Size 06 approx. $125\text{ L/min}$.

  • Adjustment Type: Manual adjustment bolt with locknut.

  • Drain Port: Must be connected directly to the tank with minimum back-pressure.