PA 624/VS170 Balanced Relief Valve 6 GPM 2415 PSI – OEM Replacement Part
Part Number: 3331
Category: Pressure Washer Parts → Pressure Control Valves → Balanced Relief Valves
Type: PA 624/VS170 Balanced Relief Valve
The PA 624/VS170 Balanced Relief Valve (Part #3331) is a genuine OEM replacement pressure relief valve designed to provide dependable overpressure protection for commercial and industrial pressure washer systems. Manufactured by PA (P.A. SpA), this balanced relief valve is rated for up to 2,415 PSI, 6.3 GPM, and operating temperatures up to 195°F.
Key Features & Benefits
- Genuine PA (P.A. SpA) OEM replacement balanced relief valve
- Rated up to 2,415 PSI
- Supports flow rates up to 6.3 GPM
- Balanced valve design for stable pressure control
- Protects equipment from excessive pressure buildup
- Helps prevent pump and plumbing damage
- Durable commercial-grade construction
- Suitable for hot and cold water applications
- Reliable pressure relief performance
- Compact design for easy installation
- Long service life
- Ideal for system safety and protection
Technical Specifications
Part Number: 3331
Manufacturer: PA (P.A. SpA)
Model: 624/VS170
Manufacturer Part Number: YBRV624
Product Type: Balanced Relief Valve
Maximum Pressure: 2,415 PSI
Maximum Flow Rate: 6.3 GPM
Maximum Temperature: 195°F
Inlet Connection: 3/8" BSP
Outlet Connection: 3/8" BSP
Valve Type: Balanced Relief Valve
OEM Replacement: Yes
What a Balanced Relief Valve Does
The PA 624/VS170 is designed to:
- Relieve excess system pressure
- Protect pumps and plumbing components
- Prevent pressure-related equipment damage
- Improve overall system safety
- Maintain stable operating conditions
- Reduce the risk of component failure
When system pressure exceeds the valve's setting, the valve opens to relieve pressure and help protect the equipment.
Balanced Relief Valve Advantages
The balanced design provides:
- Stable pressure control
- Smooth valve operation
- Consistent relief performance
- Reduced pressure fluctuations
- Improved system protection
- Reliable long-term operation
Common Applications
Pressure Washer Systems
Ideal for:
- Commercial pressure washers
- Industrial pressure washer systems
- Skid-mounted cleaning units
- Custom wash systems
Industrial Equipment
- Fluid transfer systems
- Water circulation systems
- Pump protection applications
- Equipment safety systems
General Pressure Control
- System overpressure protection
- Pump safeguarding
- Pressure regulation support
- Equipment maintenance applications
Performance Benefits
- Reliable pressure relief protection
- Reduced risk of pump damage
- Improved equipment safety
- Stable system operation
- Long service life
- Professional-grade durability
- Reduced maintenance costs
- Dependable pressure control
Signs a Relief Valve Needs Replacement
Replace the valve if you notice:
- Pressure spikes
- Pressure relief malfunction
- Water leakage around the valve
- Difficulty maintaining pressure settings
- Corrosion or wear
- Reduced system protection
- Inconsistent valve operation
- Damaged internal components
Installation Notes
- Shut down the system and relieve all pressure.
- Verify compatibility with system pressure and flow ratings.
- Install using the proper BSP-threaded connections.
- Apply thread sealant where appropriate.
- Set pressure according to equipment specifications.
- Test system operation after installation.
- Verify proper pressure relief function before returning equipment to service.
Important: Relief valves should be adjusted and installed according to manufacturer recommendations to ensure proper system protection and safe operation.
Maintenance Recommendations
- Inspect regularly for leaks and wear.
- Verify pressure settings during routine maintenance.
- Test relief valve operation periodically.
- Maintain clean water filtration systems.
- Replace worn seals and internal components as needed.
- Follow PA maintenance recommendations.
