VRS3-250 | Unloader Valve, 3700 PSI, 3/8 NPT Blue Spring

VRS3-250 – Unloader Valve – 3700 PSI – 3/8″ NPT – Blue Spring

The Annovi Reverberi VRS3-250 is a compact yet heavy-duty unloader valve engineered to deliver reliable pressure regulation and pump protection in systems operating up to 250 BAR (≈3,700 PSI). Featuring 3/8″ NPT connections and a precision-calibrated blue spring, this valve provides stable performance in small-to-medium commercial cleaning systems where space is limited but reliability is essential.

Designed for demanding duty cycles, the VRS3-250 prevents damaging overpressure by instantly diverting water into bypass when the spray trigger is released—reducing system stress, protecting pumps, and ensuring smooth daily operation.

Optimized Regulation with Blue Spring Control

The blue spring is the defining feature of the VRS3-250, offering consistent and precise regulation up to 250 BAR. This ensures smooth operation even during frequent trigger cycling or throttle adjustments.

• Stable, repeatable pressure control.
• Reduced hose whip and pressure spikes.
• Less strain on pump bearings, seals, and valves.
• Maintains calibration across high cycling environments.
• Ideal for contractor rigs, facility systems, and industrial carts.

Compact, Flexible Installation

The VRS3-250 is engineered for use in tight spaces where larger industrial unloaders won’t fit. Its compact footprint makes it ideal for mobile and standardized systems.

• Space-saving design for mobile wash rigs and carts.
• 3/8″ NPT ports integrate easily with North American plumbing.
• No need for specialty fittings or adapters.
• Perfect for OEM equipment builds and multi-station layouts.

Durable Construction for Continuous Operation

Built for real-world professional use, the VRS3-250 features rugged internal components that withstand vibration, cycling, and exposure to water or detergents.

• Rugged housing and precision internals resist wear.
• Instant bypass activation reduces thermal buildup.
• Protects pump seals, bearings, and check valves.
• Reduces downtime and long-term maintenance costs.

Key Specifications

• Pressure Rating: 250 BAR (≈3,700 PSI)
• Connections: 3/8″ NPT ports for universal integration
• Spring: Blue spring for calibrated, reliable regulation
• Function: Automatic bypass for overpressure relief
• Design: Compact footprint for confined system layouts

Applications

• Mobile Wash Rigs – ideal for van- or trailer-mounted systems.
• Facility Maintenance Carts – integrates cleanly into industrial or janitorial carts.
• OEM Equipment Builds – simplifies plumbing in standardized washer designs.
• Light Industrial Wash Systems – dependable performance for plant maintenance.
• Rental Equipment Fleets – durable, compact, and low-maintenance.

Operator Benefits

• Enhanced safety through overpressure protection.
• Stable, predictable performance from blue spring calibration.
• Compact and lightweight for tight-system integration.
• Lower maintenance costs and extended pump life.
• Wide compatibility with North American fittings.

VRS3-250 | Unloader Valve, 3700 PSI, 3/8 NPT Blue Spring

The Annovi Reverberi VRS3-250 unloader valve delivers dependable performance, safety, and efficiency in a compact package designed for contractor, commercial, and OEM cleaning systems. With its precision-calibrated blue spring, automatic bypass protection, and rugged construction, it keeps pumps protected, reduces downtime, and provides smooth operation in a variety of demanding applications.

Whether used on a mobile rig, a facility cleaning cart, or an OEM platform, the VRS3-250 is the trusted compact unloader for professionals who require reliability and space-efficient design.