AR20242G GYMATIC Bolt-On Unloader Valve 3650 PSI – OEM Replacement Part
Part Number: 5547
Category: Pressure Washer Parts → Unloader Valves → Bolt-On Unloaders
Type: AR20242G GYMATIC Bolt-On Unloader Valve
The AR20242G GYMATIC Bolt-On Unloader Valve (Part #5547) is a genuine OEM replacement unloader valve engineered by AR Pumps (Annovi Reverberi) for use on compatible pressure washer pumps. Designed for direct bolt-on installation, the GYMATIC unloader provides automatic pressure regulation and pump protection by diverting water flow when the trigger gun is released.
Key Features & Benefits
- Genuine AR Pumps OEM replacement unloader valve
- Direct replacement for AR Part Number AR20242G
- GYMATIC bolt-on design for easy installation
- Rated up to 3,650 PSI
- Compatible with flow rates from 3.0 to 5.5 GPM
- Automatically diverts water when trigger gun is released
- Helps protect pumps from damaging pressure spikes
- Maintains consistent operating pressure
- Compact integrated design
- Includes mounting bolts
- Durable commercial-grade construction
- Ideal for professional pressure washing equipment
Technical Specifications
Part Number: 5547
Manufacturer: AR Pumps (Annovi Reverberi)
Manufacturer Part Number: AR20242G
Model: GYMATIC
Product Type: Bolt-On Unloader Valve
Maximum Pressure: 3,650 PSI
Flow Range: 3.0 – 5.5 GPM
Maximum Temperature: 165°F
Inlet Connection: 3/4" FGH
Outlet Connection: 3/8" MPT
Mounting Style: Bolt-On
Hardware Included: Yes (Bolts Included)
OEM Replacement: Yes
What the GYMATIC Unloader Does
The AR20242G automatically:
- Regulates system pressure
- Diverts water flow into bypass mode when the trigger is released
- Prevents excessive pressure buildup
- Protects pumps, hoses, and fittings
- Reduces wear on pump components
- Improves overall pressure washer reliability
This helps maintain safe operating conditions while extending the service life of your pressure washer system.
Common Applications
Pressure Washer Systems
Ideal for:
- Commercial pressure washers
- Professional cleaning equipment
- Contractor pressure washing rigs
- Mobile wash trailers
- Industrial cleaning systems
Cleaning Applications
- Fleet washing
- Equipment cleaning
- Property maintenance
- Industrial facility cleaning
- Agricultural equipment washing
- Commercial surface cleaning
Performance Benefits
- Reliable pressure regulation
- Improved pump protection
- Reduced system wear
- Consistent cleaning performance
- Easy bolt-on installation
- Extended equipment life
- Reduced maintenance costs
- Professional-grade durability
Signs an Unloader Valve Needs Replacement
Replace the unloader if you experience:
- Pressure fluctuations
- Inconsistent spray pressure
- Pump cycling issues
- Pressure spikes
- External leaks
- Difficulty adjusting pressure
- Reduced cleaning performance
- Worn or damaged valve components
Installation Notes
- Shut down the pressure washer and relieve all system pressure.
- Remove the existing bolt-on unloader assembly.
- Inspect mounting surfaces and seals.
- Install the AR20242G using the supplied mounting hardware.
- Verify inlet and outlet connections.
- Adjust pressure settings according to equipment specifications.
- Test the system for proper bypass operation and leak-free performance.
Important: Always operate within the valve's rated flow, pressure, and temperature specifications to ensure safe and reliable performance.
Maintenance Recommendations
- Inspect the unloader regularly for wear and leakage.
- Verify pressure settings during routine service.
- Maintain clean inlet water filtration.
- Monitor bypass operation periodically.
- Replace worn seals and components as needed.
- Follow AR Pumps maintenance guidelines.
