Rexroth Type Z2S6 Z2S10 Valve | R900407394 Z2S10-1-3X | Modular Pilot Check

Z2S6 & Z2S10 Series Modular Pilot Operated Check Valves

Product Overview: The Z2S Series Modular Pilot Operated Check Valve is a critical component for ensuring precise position locking and long-term pressure retention of hydraulic actuators. Utilizing a compact sandwich plate design that complies with ISO 4401 mounting standards, these valves are stacked directly beneath directional control valves, significantly optimizing space within hydraulic manifolds.

This category features the essential Z2S6 (NG6) and Z2S10 (NG10) sizes, covering the classic Z2S10-1-3X/ series and the specific Rexroth Part Number R900407394. The valve operates by providing leak-free closure in one or two service ports (A or B), permitting reverse flow only when pilot pressure is applied from the opposite side. It is the premier choice for preventing cylinder drift caused by gravity or external loads.

Key Technical Advantages:

• Zero-Leakage Integrity: Hardened, precision-ground poppets ensure a drop-tight seal during extended locking periods, effectively eliminating actuator drift.

• Modular System Integration: The sandwich architecture eliminates excessive external piping, significantly reducing potential leak points and lowering overall installation and maintenance costs.

• High-Response Pilot Logic: Engineered with optimized pilot ratios to ensure smooth and rapid unlocking of reverse flow, even in systems with significant backpressure.

• Heavy-Duty Durability: Rated for operating pressures up to 31.5 MPa (4,500 PSI), designed to withstand the continuous stress of high-frequency industrial duty cycles.

Detailed Specifications & Parameters:

• Core Series: Rexroth Type Z2S Modular Check Valves.

• Featured Model Matrix: Z2S6, Z2S10, Z2S10-1-3X, Z2S10-1-34, R900407394, Z2S16, Z2S22.

• Core Performance Specs:

  • Nominal Sizes: Size 6 (NG6), Size 10 (NG10).

  • Max Operating Pressure: Rated at 31.5 MPa (315 Bar).

  • Pilot Area Ratio: Optimized ratios (e.g., 1:2.8 or 1:3) designed for reliable opening.

  • Control Configuration: Available for Port A, Port B, or Dual A+B port locking.

  • Mounting Standards: ISO 4401-03-02 (NG6) and ISO 4401-05-04 (NG10).