Rexroth RVP Series In-line Check Valve | RVP6 RVP8 RVP10 RVP20

The RVP Series in-line check valves by Chengyuan Hydraulic are high-fidelity fluid control components engineered to match the globally recognized Bosch Rexroth industrial standards. Acting as the “unidirectional guardian” of the hydraulic circuit, the RVP series allows free flow in one direction and absolute closure in the opposite direction through a threaded in-line connection. Our manufacturing matrix covers the core RVP8-1-10B model and extended sizes (RVP6 to RVP25). Every valve body is machined from high-tensile steel with a hardened poppet to ensure zero internal leakage under a continuous 315 bar operational envelope. Before delivery, each RVP valve undergoes 100% simulated condition testing for cracking pressure and reverse sealing integrity, ensuring 100% original-place interchangeability.

Technical Specifications :

• Brand Compatibility: Bosch Rexroth

• Series Series: RVP Series (In-line Threaded Check Valve)

• Available Sizes: RVP6, RVP8, RVP10, RVP12, RVP16, RVP20, RVP25

• Component Series: 10B (1X Series)

• Maximum Operating Pressure: 315 bar (4568 psi)

• Cracking Pressure (Code -1-): Standard 0.5 bar (Options: 1.5, 3.0, 5.0 bar available)

• Max Flow Capacity: From 40 L/min (RVP6) to 450 L/min (RVP25)

• Connection Type: Female internal threading (G-thread standard)

• Fluid Compatibility: Mineral oils (HL, HLP) per DIN 51524; Phosphate esters (HFD-R)

• Temperature Range: -30°C to +80°C (-22°F to +176°F)

• Cleanliness Standard: NAS 1638 Class 9 or ISO 4406 20/18/15

Key Technical Advantages:

• Metal-to-Metal Hard-Seated Poppet: The poppet and seat are precision-ground and heat-treated for extreme surface hardness. This ensures zero-leakage performance when closed, preventing pressure drift in actuators.

• Streamlined Low-Pressure Drop Flow Path: The internal geometry is hydrodynamically optimized. During forward flow, the pressure drop $\Delta p$ is minimized, reducing heat generation and maximizing energy efficiency.

• High-Response & Shock Resistance: The reinforced spring mechanism is designed for high fatigue strength, ensuring rapid response and noise-free operation even under high-frequency switching or pressure surges.

• High-Strength Forged Steel Housing: Machined from premium alloy steel, our housings offer superior tensile and fatigue strength compared to cast alternatives, easily handling 315 bar and intermittent pressure spikes.

Application Areas:

• Pump Outlet Protection: Acts as a non-return valve at the pump outlet to prevent backflow and reverse rotation.

• Actuator Pressure Holding: Used in cylinder or motor circuits to ensure the load remains stationary during power-off.

• Bypass Circuit Control: Parallel connection with throttle valves for unidirectional speed control.

• Machine Tools & Mobile Machinery: Injection molding machines, press brakes, excavators, and agricultural equipment.

Expert Maintenance Tips:

• Orientation Check: Always verify the flow arrow marked on the valve body before installation; the arrow indicates the direction of free flow.

• Torque Limits: Use a torque wrench and refer to the official technical manual. Excessive torque on the threaded ports can cause micro-deformations in the body, affecting poppet sensitivity or damaging the seat.

• Cracking Pressure Selection: For back-pressure applications, consider a higher cracking pressure spring (e.g., Code -2- or -3-) to maintain the necessary dynamic response within the system.