483-1/2B2-50
DESCRIPTION:
Based on available Parker references and equivalent 483 Series part numbers, the Parker 483-1/2B2-50 is an inline free-flow hydraulic check valve
TECHNICAL DESCRIPTION:
| Parameter | Technical Description |
|---|---|
| Manufacturer | Parker Hannifin |
| Part Number | 483-1/2B2-50* |
| Series | 483 Series |
| Valve Type | Free-flow hydraulic check valve (inline) |
| Operating Principle | Spring-loaded poppet automatically opens with forward pressure and closes to prevent reverse flow. |
| Function | Permits fluid flow in one direction while preventing backflow in hydraulic systems. |
| Flow Direction | Unidirectional |
| Flow Control Element | Precision poppet |
| Closing Mechanism | Compression spring assisted by reverse line pressure |
| Valve Operation | Automatic (self-actuating) |
| Nominal Port Size | 1/2 in |
| Connection Type | Female threaded hydraulic ports (B2 configuration) |
| Valve Configuration | Straight-through inline design |
| Body Material | Steel (typical Parker 483 Series construction) |
| Surface Finish | Passivated/protective finish (varies by configuration) |
| Maximum Operating Pressure | Up to 3,000 psi (207 bar) for equivalent 483 Series valves |
| Maximum Operating Temperature | Up to 400 °F (204 °C) for equivalent configurations |
| Leakage | Minimal to zero reverse leakage when seated |
| Installation Position | Horizontal or vertical |
| Typical Hydraulic Media | Petroleum-based hydraulic oils and compatible fluids |
| Applications | Hydraulic power units, industrial machinery, mobile hydraulics, pump outlet protection, actuator isolation, accumulator circuits |
| Maintenance | Periodic inspection for contamination, wear, spring integrity, and seal condition |
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