Rexroth Type Z2FS Valve | R900443176 Z2FS22 R900481624 Z2FS6 R900517812 Z2FS10 | Twin Throttle Check

Rexroth Type Z2FS Series Twin Throttle Check Valves

Product Overview: The Z2FS Series Twin Throttle Check Valve is a sandwich-plate component designed to precisely regulate the speed of hydraulic actuators, such as cylinders or motors. Featuring a standard modular design complying with ISO 4401 mounting standards, these valves are stacked directly beneath directional control valves to provide independent flow control for Port A and Port B.

This category features essential industrial specifications, including Z2FS6 (NG6), Z2FS10 (NG10), and Z2FS22 (NG22). Featured models include the Z2FS10-5-35/V with Viton seals and the large-bore Z2FS22, meeting speed regulation requirements for everything from precision machine tools to heavy-duty metallurgical equipment.

Key Technical Advantages:

• Independent Dual-Port Regulation: Controls flow for Port A and Port B independently within a single valve body, allowing for precise meter-in or meter-out speed management for both actuator directions.

• Viton Sealing Excellence (V): Models like R900517812 (Z2FS10…/V) come standard with high-grade FKM (Viton) seals, offering superior thermal resistance and chemical stability for an extended service life in harsh environments.

• Streamlined System Integration: The sandwich architecture eliminates excessive external piping, significantly reducing potential leak points and minimizing the overall footprint of the hydraulic manifold.

• Precision Linear Adjustment: The adjustment screws offer excellent linearity. Models with internal hexagon protection (Type 2QV) ensure settings remain stable even under extreme vibration.

Detailed Specifications & Parameters:

• Core Series: Rexroth Type Z2FS Twin Throttle Check Valves.

• Featured Model Matrix & Material Numbers: * R900443176 (Z2FS22-8-31/S2)

  • R900481624 (Z2FS6-2-45/2QV)

  • R900517812 (Z2FS10-5-35/V)

• Core Performance Specs:

  • Nominal Sizes: Size 6 (NG6), Size 10 (NG10), Size 22 (NG22).

  • Max Operating Pressure: Rated for 31.5 MPa (315 Bar / 4,500 PSI).

  • Max Flow Capacity: Ranges from 80 L/min (NG6) up to 350 L/min (NG22).

  • Sealing Options: NBR Standard or optional V (FKM/Viton).

  • Adjustment Type: Adjustment screw with protective cap or scale.