Rexroth R900421985 Z2S10-2-3X/
The Rexroth R900421985 Z2S10-2-3X/ is a pilot-operated check valve in a sandwich plate design, belonging to the Z2S10 series. This valve is engineered for hydraulic systems to provide leakage-free blocking of one actuator port, specifically port B in this model, with pilot operation from port A. It ensures that actuators maintain their position, preventing unintended movement even during prolonged periods of inactivity. Its robust construction and standardized mounting interface make it suitable for a wide range of industrial hydraulic applications requiring reliable load holding and safety functions.
Technical Specifications:
- Valve Type: Pilot-operated check valve, sandwich plate design
- Series: Z2S10
- Component Series: 3X (30 to 39, unchanged installation and connection dimensions)
- Size: NG10 (Nominal Size 10)
- Porting Pattern: Conforms to ISO 4401-05-04-0-05 (CETOP RP 121 H, NFPA T3.5.1 R2-2002 D05)
- Checking Function: In port B
- Pilot Operation: From port A
- Maximum Operating Pressure (Ports A, B, P, T): 315 bar (4568 psi)
- Maximum Flow Rate: 120 l/min (31.7 US gpm)
- Cracking Pressure (Check Valve): Standard versions typically 0.5 bar, 1.5 bar, 3 bar, or 5 bar (Confirm specific cracking pressure for this exact model if critical, though “2” in Z2S10-2-3X/ denotes checking in port B, not cracking pressure directly)
- Hydraulic Fluid: Mineral oil (HL, HLP) according to DIN 51524; other fluids on request
- Fluid Temperature Range: -30°C to +80°C (-22°F to +176°F)
- Viscosity Range: 2.8 to 500 mm²/s
- Seals: NBR (Nitrile Butadiene Rubber) as standard
- Weight: Approximately 2.1 kg (4.6 lbs)
- Mounting Position: Optional, preferably horizontal
- Direction of Flow: As indicated by symbols on the valve
| Brand | Rexroth |
|---|---|
| Model | R900421985 Z2S10-2-3X/ |
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