Product Overview
The Parker VSA315A0623 is a direct-operated pressure relief valve engineered within Parker’s VSA series of hydraulic pressure control valves. It functions as a normally closed, spring-loaded poppet or ball-seat valve that opens proportionally when system pressure exceeds the adjustable set point, diverting excess flow to tank and thereby safeguarding pumps, cylinders, and downstream components from overpressure damage. The VSA315A0623 is designed for inline or manifold mounting in industrial hydraulic circuits, offering precise cracking pressure control, low pressure override, and stable operation across a broad flow range. Its robust construction and precision-machined internal components make it a reliable choice for continuous-duty industrial applications requiring accurate pressure limiting and system protection.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | VSA315A0623 |
| Manufacturer | Parker Hannifin |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, adjustable via spring/screw) |
| Actuation Type | Direct spring-loaded, manual adjustment |
| Mounting & Connection | Standard ISO / Manufacturer Interface (inline or manifold) |
| Seal Material | NBR / FKM (standard industrial hydraulic fluids) |
| Fluid Compatibility | Mineral oil, synthetic hydraulic fluids (standard industrial) |
Engineering Features & Advantages
- Precision Pressure Control: Direct spring-loaded poppet design delivers accurate cracking pressure and low hysteresis, ensuring consistent system protection across varying flow demands.
- Fast Response & Low Override: Rapid opening characteristic minimizes pressure spikes and reduces pressure override at full flow, protecting sensitive downstream components.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with hardened internal components and robust housing.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, allowing drop-in replacement without system modification.
- Adjustable Set Point: External adjustment screw enables precise pressure setting within the valve’s rated range for application flexibility.
Typical Industrial Applications
The Parker VSA315A0623 pressure relief valve is widely deployed in heavy industrial hydraulic systems, including plastic injection molding machines, metallurgical presses, construction and marine hydraulics, CNC machine tools, and general industrial power units. It serves as a critical safety and pressure-limiting component, protecting pumps, actuators, and circuit components from overpressure while maintaining stable system pressure during normal operation.
PRODUCT IMAGES

Parker VSA315A0623 Pressure Relief Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine Parker VSA315A0623 Solenoid Directional Seat Valve. This German-made hydraulic component features a robust poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.





