AR22287 | VR35 IDR Unloader Valve, 4000 PSI

AR22287 | VR35 IDR Unloader Valve, 4000 PSI

The Annovi Reverberi AR22287 VR35 IDR Unloader Valve is engineered to deliver
precise and reliable pressure regulation for heavy-duty pressure washing systems. Rated up to
4,000 PSI, this unloader valve belongs to the proven VR35 family—known worldwide
for rugged design, dependable bypass control, and compatibility with industrial and
contractor-grade cleaning equipment. The IDR designation indicates enhancements
in bypass performance and reliability, combining the smooth transitions of ID models with
reinforced internal sealing for extra durability.

By automatically diverting water flow into bypass mode when the spray trigger is released,
the AR22287 safeguards pumps, hoses, guns, and fittings from damaging overpressure surges.
This not only prevents catastrophic equipment failures but also extends the operational
lifespan of the entire cleaning system.

Key Features

• Pressure Rating: Up to 4,000 PSI for industrial-grade systems.
• Valve Type: VR35 IDR unloader valve with reinforced internals and smooth bypass control.
• Function: Automatic bypass to prevent pressure spikes and pump damage.
• Construction: High-strength body, precision-machined internals, and robust sealing.
• Applications: Industrial washers, contractor rigs, facility maintenance systems, and commercial pressure washing setups.

How It Works

The AR22287 VR35 IDR regulates working pressure while serving as a built-in safety system.
During active spray, the valve maintains steady system pressure. When the operator releases
the spray trigger, the unloader instantly shifts into bypass mode, diverting water flow back
to the pump inlet or reservoir. This prevents dangerous surges that could damage pumps or
hoses, ensuring smooth transitions between active and idle operation.

The IDR upgrade refines this function by providing even more stable bypass cycling and
improved internal sealing, which helps prevent leakage during extended high-pressure use.
Contractors and industrial crews benefit from consistent system output, improved operator
control, and reduced wear on system components.

Construction & Durability

• Reinforced Housing: Withstands repeated cycling at pressures up to 4,000 PSI.
• Precision Internals: Machined components minimize friction, ensuring smooth regulation.
• High-Strength Seals: Robust sealing design reduces leaks and extends maintenance intervals.
• Corrosion Resistance: Suitable for outdoor or chemically demanding environments.

Each unit undergoes strict factory testing to verify safe, consistent performance in real-world
conditions.

Installation & Adjustment

• Connections: Standard fittings ensure compatibility with a wide range of pumps and systems.
• Compact Design: Small footprint simplifies installation in tight equipment layouts.
• Adjustment: Accessible screw or knob allows fine-tuning of system pressure for specific cleaning requirements.
• Serviceability: Easy-to-disassemble design supports straightforward servicing and rebuilds, reducing downtime in the field.

Applications

• Industrial Wash Systems: Plants, factories, and heavy production facilities requiring continuous operation.
• Contractor Rigs: Mobile cleaning systems used for fleet washing, heavy equipment maintenance, and construction cleanup.
• Facility Maintenance: Universities, warehouses, sports arenas, and municipal properties.
• Commercial Pressure Washers: Systems that must run daily under high workload conditions and demand smooth bypass transitions.

Benefits

• Pump Protection: Extends pump life by preventing damaging overpressure events.
• Enhanced Reliability: IDR design provides smoother operation and more consistent bypass cycling.
• Long Service Life: Rugged construction and robust seals handle daily, heavy-duty use.
• Ease of Use: Compact, easy to install, and simple to adjust for specific job requirements.
• Peace of Mind: Factory-tested to deliver dependable performance across a wide range of environments.

Specifications

• Model: AR22287
• Series: VR35 IDR
• Maximum Pressure: 4,000 PSI
• Valve Type: Unloader, automatic bypass
• Construction: High-strength housing with precision-machined internals
• Seals: Leak-resistant, reinforced for durability
• Applications: Industrial washers, contractor rigs, facility maintenance, heavy-duty commercial systems

AR22287 | VR35 IDR Unloader Valve, 4000 PSI

✅ The AR22287 VR35 IDR Unloader Valve is built for professionals who need extreme
reliability, consistent pressure regulation, and superior bypass performance. With reinforced
internals, smooth cycling, and a rugged 4,000 PSI capacity, it is a trusted choice for
contractors, industrial operators, and facility managers who demand the very best in pump
protection and system safety.