AR5000-1 | Adjustable Safety Release Valve, Overpressure Protection
The AR AR5000-1 Safety Release Valve | Adjustable Relief Set is a precision-engineered
pressure protection component designed by Annovi Reverberi to safeguard high-pressure pump systems from
overpressure conditions. Acting as a critical safety mechanism, this adjustable relief valve
automatically vents excess pressure to maintain system balance, protect pumps, hoses, and fittings, and
keep cleaning and industrial applications running safely and reliably.
Construction & Materials
- Brass body with stainless-steel internal components for strength and corrosion resistance.
- Built to withstand continuous exposure to pressurized water, temperature swings, and vibration.
- Precision-machined threads and internal surfaces provide a secure fit, tight sealing, and smooth operation over many cycles.
Adjustable Relief Function
- Top-mounted adjustment screw lets technicians set the desired pressure relief point for the system.
- Valve automatically opens when system pressure exceeds the calibrated threshold, safely discharging excess flow.
- As pressure normalizes, the valve closes tightly and self-resets, restoring full system integrity without leakage.
Internal Design & Performance
- Uses a precision-calibrated spring and plunger assembly for quick, accurate response to pressure surges.
- Provides consistent relief action without chatter, helping maintain steady water delivery under varying loads.
- High-quality sealing surfaces and resilient O-rings ensure leak-free performance at high operating pressures.
AR5000-1 Installation & Compatibility
- Suitable for a wide range of AR pumps, pressure washers, jetting machines, and industrial sprayers.
- Standard thread design allows easy mounting on discharge manifolds or outlet lines.
- Compact form factor fits confined or mobile assemblies; setup requires only basic tools, then runs automatically.
Safety Role & Applications
- Protects systems from dangerous pressure spikes caused by blocked nozzles, closed triggers, or sudden restrictions.
- Helps prevent pump failure, hose rupture, and operator injury by venting excess pressure instantly.
- Ideal for industrial cleaning rigs, mobile pressure washers, agricultural sprayers, and jetting systems.
Durability & Service Life
- Brass housing resists corrosion and mechanical fatigue over thousands of cycles.
- Stainless-steel internals withstand hot water and chemical solutions without pitting or oxidation.
- Holds its calibrated range over time, providing consistent relief action with minimal need for readjustment.
Maintenance & Service
- Requires only periodic inspection for debris or scale that might affect response.
- Cleaning is simple: remove, flush with clean water, and reinstall.
- Replacement O-rings and springs are available in AR North America maintenance kits for quick rebuilds.
Quality Assurance
- Each valve is factory-tested for pressure accuracy, seal integrity, and response consistency.
- Quality checks include pressure cycling, leak testing, and calibration verification to meet hydraulic safety standards.
AR5000-1 | Adjustable Safety Release Valve, Overpressure Protection
- The AR AR5000-1 Safety Release Valve delivers smooth, predictable overpressure protection that keeps high-pressure pump systems operating within safe limits.
- Combining robust construction, fine adjustment, and self-resetting reliability, it is a key safeguard for professional jetting, agricultural spraying, and heavy-duty cleaning operations where equipment protection and operator safety are non-negotiable.





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