CV3-40038 | Stainless Check Valve 5800 PSI 3/8 F x 3/8 F Ports
- The AR CV3-40038 is a stainless-steel, high-precision check valve engineered by Annovi Reverberi to maintain safe, one-direction flow in high-pressure water systems.
- Rated for up to 5,800 PSI and built with dual 3/8-inch female NPT ports, it prevents backflow and pressure reversal that can damage pumps, hoses, and instrumentation.
- Compact design combines strength, corrosion resistance, and flow efficiency for demanding cleaning, industrial, and process-water applications where pressure integrity is critical.
Construction & Materials
- Body machined from high-grade stainless steel for superior resistance to corrosion, scale, and chemical wear versus brass or plated-steel valves.
- Precision-bored internal passage maintains tight tolerances and an ultra-smooth flow path, minimizing turbulence and pressure drop.
- Internal geometry reduces dead zones and stagnant areas, limiting the risk of cavitation and contamination—ideal for filtered, softened, or reclaimed water systems.
- High strength-to-weight ratio supports use in marine, industrial, and commercial installations where durability and low maintenance are priorities.
Flow Control & Backflow Protection of CV3-40038
- Stainless-steel, spring-loaded poppet opens automatically when forward pressure exceeds the calibrated spring force, allowing smooth flow with minimal restriction.
- When reverse pressure occurs, the poppet seats instantly against its precision-machined seat, sealing the passage and blocking backflow into upstream components.
- Rapid closing action helps absorb hydraulic shock during shutdowns or trigger cycling, protecting plungers, seals, check assemblies, and hoses from reverse-pressure spikes.
- Maintains pump prime and supports consistent outlet pressure, improving the performance of downstream guns, injectors, unloaders, and spray accessories.
Installation & Integration
- Dual 3/8-inch female NPT ports connect easily to standard fittings, manifolds, and hose assemblies.
- Compact footprint allows installation in confined spaces or retrofit applications where larger check valves are impractical.
- Ideal placement near pump outlets, discharge manifolds, or critical branch lines to create a robust barrier against reverse flow.
- Simple commissioning: orient the flow arrow, apply PTFE tape or thread sealant to clean threads, tighten to spec, and verify leak-free operation.
CV3-40038 | Stainless Check Valve 5800 PSI 3/8 F x 3/8 F Ports
Applications
- Professional pressure washer rigs, fleet wash stations, and industrial washdown systems.
- Agricultural sprayers and high-pressure water-distribution systems.
- Manufacturing plants and process-water circuits requiring stable, one-direction flow.
- Marine and commercial installations where corrosion resistance and pressure stability are essential.
CV3-40038 Maintenance & Serviceability
- Internal spring and seat assembly designed for thousands of cycles at high pressure, maintaining consistent sealing over time.
- Valve can be removed with standard tools for inspection and cleaning of the poppet and seat to remove debris or mineral buildup.
- Reassembly is straightforward; reinstall with thread sealant or PTFE tape for leak-free service under vibration and temperature swings.
- Minimal routine maintenance beyond periodic checks during scheduled service intervals, keeping downtime low.
Why Choose the AR CV3-40038?
- Stainless-steel, 3/8-inch NPT check valve rated to 5,800 PSI for serious high-pressure duty.
- Delivers dependable one-way flow, fast backflow shutoff, and stable line behavior in compact form.
- Protects upstream pumps and components while enhancing the efficiency and consistency of downstream accessories.
- Built to Annovi Reverberi’s stringent standards, providing long-term reliability and performance in demanding high-pressure systems.





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