VR54-150-PKG | Unloader Kit, 2175 PSI, 3/8 NPT Male

Overview

• The Annovi Reverberi VR54-150-PKG is a professional-grade
  unloader kit designed for systems rated up to
  150 BAR (≈ 2,175 PSI).
• Features a 3/8″ NPT male connection for secure, leak-resistant
  integration into a wide range of contractor and commercial cleaning systems.
• Automatically diverts water into bypass mode whenever the spray
  trigger is released to protect pumps, hoses, and fittings from damaging
  overpressure.
• Ideal for contractor rigs, commercial washers, facility maintenance systems, and
  rental equipment.

Why It Matters

• When an operator stops spraying, the pump continues to build pressure, which can
  create sudden pressure spikes without an unloader in the system.
• These spikes can overstress seals, damage hoses, and compromise
  operator safety.
• The VR54-150-PKG solves this by providing automatic bypass operation,
  redirecting flow whenever the trigger is released.
• Helps reduce system stress, prevent overheating in bypass mode, and maintain
  consistent, safe operation.

Compact, Kit-Ready Design

• “PKG” designation indicates a kit-ready, easy-install
  configuration.
• Compact housing and 3/8″ NPT male connection simplify installation in
  tight system layouts.
• Reduces the need for adapters or complex plumbing changes during installation or
  service.
• Ideal for portable contractor rigs, facility systems, and
  rental units where quick turnaround and reliability are critical.

Materials & Construction

• Rugged housing with precision-machined internals for long-term
  durability under frequent daily use.
• Heavy-duty sealing system ensures leak-free operation and stable
  pressure regulation across thousands of cycles.
• Corrosion-resistant construction stands up to wet, outdoor, and
  chemically exposed environments.
• Factory-tested by Annovi Reverberi to deliver stable, repeatable performance.

Applications

• Contractor Cleaning Rigs – Compact, rugged protection for
  construction, agriculture, and building maintenance systems.
• Commercial Washers – Reliable regulation for car washes, fleet
  maintenance, and equipment wash stations.
• Facility Maintenance Systems – Used in property management,
  schools, hospitals, and municipal cleaning setups.
• Rental Equipment Fleets – Easy-to-install kit format for fast
  servicing and consistent safety.
• Light-Industrial Wash Bays – Protects pumps and hoses in smaller
  commercial shops and maintenance facilities.

Key Features & Specifications

• Model: VR54-150-PKG
• Type: Unloader kit
• Pressure Rating: 150 BAR (≈ 2,175 PSI)
• Connection: 3/8″ NPT male
• Function: Automatic bypass to prevent overpressure and reduce pump
  strain.
• Construction: Rugged housing with precision-machined internals and
  heavy-duty seals.
• Primary Applications: Contractor rigs, commercial washers, rental
  units, facility maintenance systems.

Benefits for Operators

• Pump Longevity: Reduces stress on seals, pistons, and valves,
  extending pump service life.
• Operator Safety: Prevents dangerous pressure spikes that can lead
  to hose or component failure.
• Compact Kit Form: Simplifies installation, cutting downtime and
  service labor costs.
• Consistent Performance: Precision internals provide stable
  regulation during daily operation.
• Versatile Fit: 3/8″ NPT male connection integrates easily into
  U.S.-standard high-pressure systems.

Summary

• The Annovi Reverberi VR54-150-PKG Unloader Kit is a compact,
  rugged, and easy-to-install pressure control solution for systems up to
  2,175 PSI.
• Its 3/8″ NPT male connection ensures fast, secure integration,
  while the automatic bypass function protects pumps and hoses from harmful
  overpressure.
• Built with precision internals, heavy-duty sealing, and corrosion-resistant
  housing, it is trusted by contractors, facility managers, and rental operators who
  demand reliability, safety, and ease of service.
• By combining professional-grade performance with a kit-ready design, the
  VR54-150-PKG delivers long-term value and confidence in every
  cleaning system it protects.