VRP43-440-SS | Regulator Valve, 1/2″ BSPF, 21 GPM 6400 PSI

VRP43-440-SS | Regulator Valve, 1/2″ BSPF, 21 GPM 6400 PSI

The Annovi Reverberi VRP43-440-SS is a high-capacity, ultra-high-pressure
regulator valve engineered for professional and industrial cleaning systems
operating at extreme pressures and flow rates. Rated up to
6,400 PSI (≈440 BAR) and capable of handling
21 GPM, this valve is designed for applications where precise pressure control,
system stability, and long-term durability are absolutely critical.

Unlike unloaders, which manage bypass during trigger release, the VRP43-440-SS functions as a
dedicated pressure regulator. Its role is to allow operators to accurately set
and maintain working pressure while protecting pumps, hoses, and accessories from excessive
stress. This makes it an essential component in extreme-duty systems such as industrial wash
bays, marine cleaning rigs, hydro-blasting support equipment, and heavy contractor setups.

Constructed from 303 stainless steel and equipped with
1/2″ BSP female ports, the VRP43-440-SS integrates seamlessly into European-standard
and international plumbing layouts while delivering the mechanical strength required for
continuous operation near maximum pressure.

Key Specifications

• Maximum Pressure: 6,400 PSI (≈440 BAR)
• Flow Capacity: Up to 21 GPM for large-volume systems
• Connections: 1/2″ BSP female inlet and outlet
• Valve Type: Adjustable pressure regulator (not an unloader)
• Construction: 303 stainless steel body and internal components
• Design: Compact, high-strength configuration for continuous-duty use

Precision Pressure Control

The VRP43-440-SS is engineered to provide smooth, accurate, and repeatable pressure adjustment
across a wide operating range. Precision-machined internals work together to stabilize system
pressure even in high-flow or multi-gun applications where pressure fluctuations are common.

• Functions as a true pressure regulator, allowing fine adjustment of working PSI.
• Helps prevent overpressure that can damage pumps, hoses, and downstream components.
• Maintains consistent pressure during long cleaning cycles and fluctuating demand.
• Reduces pulsation, hose whip, and operator fatigue.
• Improves overall cleaning consistency across different surfaces and tasks.

This level of control is especially important in extreme-pressure environments where small
pressure variations can translate into uneven cleaning results or accelerated component wear.
By keeping system pressure within optimal operating limits, the VRP43-440-SS supports both
performance and safety.

303 Stainless Steel Construction

The valve body and internals are manufactured from 303 stainless steel, a material
chosen for its excellent balance of strength, corrosion resistance, and machinability in
high-pressure fluid systems. This construction provides a significant durability advantage over
brass or plated steel alternatives.

• Excellent corrosion resistance in humid, salt-laden, or chemical-rich environments.
• High mechanical strength supports continuous cycling at ultra-high pressures.
• Resists abrasive water, detergents, and aggressive cleaning agents.
• Maintains sealing integrity under vibration, temperature changes, and heavy load.
• Delivers long service life in demanding industrial and marine conditions.

In environments such as docks, offshore platforms, chemical plants, and food-processing
facilities, corrosion-related failures are a leading cause of downtime. The stainless-steel
construction of the VRP43-440-SS helps mitigate this risk, making it a reliable long-term solution
for mission-critical systems.

BSP Threaded Integration

The VRP43-440-SS features 1/2″ BSP female ports, ensuring compatibility with
European-standard and international plumbing systems. This simplifies installation in OEM
equipment, export systems, and facilities operating mixed global standards.

• Secure, leak-resistant BSP threaded connections.
• Clean integration without adapters or thread conversions.
• Reduced risk of cross-threading or sealing failure at high pressure.
• Ideal for contractor rigs and industrial systems built to international specifications.

Typical Applications

• Industrial Cleaning Systems – High-capacity wash bays, production lines,
  and factory maintenance operations.
• Marine Environments – Shipyards, docks, offshore platforms, and vessel
  cleaning systems exposed to saltwater.
• Commercial Cleaning Rigs – Contractor-grade trailers and skids requiring
  precise pressure control at extreme PSI.
• Chemical Processing Plants – Systems exposed to aggressive detergents,
  solvents, and process chemicals.
• Pump & Component Protection – Safeguarding high-value pumps, hoses,
  and fittings from premature wear and failure.

Benefits for Operators

• Stable Pressure Delivery: Maintains consistent working pressure under varying loads.
• Reduced Downtime: Protects pumps and components, lowering failure rates.
• High Throughput: 21 GPM capacity supports large-scale and multi-gun systems.
• Versatile Integration: 1/2″ BSPF ports fit international-standard plumbing.
• Professional Reliability: Built for continuous-duty environments where failure is not acceptable.

VRP43-440-SS | Regulator Valve, 1/2″ BSPF, 21 GPM 6400 PSI

• The VRP43-440-SS Regulator Valve is a top-tier pressure control solution
  rated for 6,400 PSI and 21 GPM.
• Combining precise, adjustable regulation with
  303 stainless steel durability, it is engineered to protect pumps,
  stabilize performance, and extend equipment life.
• For industrial operators, contractors, and marine professionals working in extreme-duty
  environments, the VRP43-440-SS represents a
  long-term, high-value investment in safety, reliability, and system efficiency.