AR24672 | VRZ IDR Unloader Knob, 5.5 GPM, Polymer

AR24672 | VRZ IDR Unloader Knob, 5.5 GPM, Polymer

The Annovi Reverberi AR24672 – VRZ IDR Unloader Knob – 5.5 GPM – Polymer is
purpose-built for high-capacity commercial and contractor-grade cleaning systems rated up to
5.5 GPM. Featuring an IDR (Internal Discharge with Return) configuration and a
durable, knob-operated adjustment system, it delivers reliable, on-demand pressure control while
safeguarding pumps, hoses, and accessories from overpressure damage.

Trusted by industrial cleaning professionals, mobile wash operators, and facility maintenance
teams, the AR24672 provides consistent regulation, smooth bypass operation, and user-friendly
functionality in demanding environments. Whether powering through heavy buildup or switching
between surface types, this valve helps operators maintain peak system performance with minimal
strain.

Key Features & Applications

High-Flow Performance for 5.5 GPM Systems

• Engineered for systems operating up to 5.5 gallons per minute (GPM).
• Maintains steady, consistent pressure across mid- to large-capacity washers.
• Performs reliably in medium- to heavy-duty commercial cleaning applications.
• Ideal for fleet washing, equipment cleaning, agriculture, construction, and surface prep.

IDR Bypass Configuration

• Internal Discharge with Return (IDR) design provides precise bypass flow control.
• Automatically diverts water into bypass the moment the spray trigger is released.
• Prevents dangerous pressure spikes that could damage pumps or hoses.
• Reduces heat buildup and mechanical stress during idle cycles for longer component life.

Knob-Operated Pressure Adjustment

• Ergonomic knob allows tool-free, fine-tuned pressure control on the job site.
• Adjusts quickly for different nozzles, detergents, and surface types.
• Dial down for delicate work; turn up for stubborn grime and heavy soils.
• Perfect for crews working across roofs, sidewalks, exteriors, and industrial machinery.

AR24672 | VRZ IDR Unloader Knob, 5.5 GPM, Polymer

Durable Polymer Construction

• Reinforced polymer housing resists cracking, fatigue, and impact in daily use.
• Precision-engineered internals and seals are optimized for long service life.
• Compact, lightweight build is ideal for mobile wash rigs and trailer systems.
• Designed to minimize maintenance needs and reduce unplanned downtime.

Professional Cleaning Applications

• Fleet Washing: Keeps pressure stable while cleaning trucks, trailers, vans, and buses.
• Agriculture: Rinse tractors, harvesters, implements, and animal facilities.
• Municipal & Public Works: Sidewalks, parks, bins, parking decks, and public spaces.
• Contractor Systems: Mobile pressure washers, soft-wash trailers, exterior cleaning rigs.
• Facility Maintenance: Industrial floors, building exteriors, and mechanical systems.

Key Specs & Benefits

AR24672 | VRZ IDR Unloader Knob, 5.5 GPM, Polymer

• Valve Type: VRZ IDR unloader valve.
• Flow Rating: Up to 5.5 GPM.
• Adjustment Method: Knob-operated, tool-free pressure regulation.
• Bypass Function: IDR configuration for safe, smooth redirection during idle cycles.
• Pump Protection: Prevents overpressure, reduces wear, and extends equipment life.
• Construction: Polymer housing with precision-machined internals for durability.
• Best For: Commercial operators, contractors, and industrial crews needing consistent,
  high-flow pressure regulation with long-term reliability.