VRT3R-310 regulator valve is a heavy-duty pressure control solution designed to stabilize system pressure at 4,500 PSI (310 bar) with flows up to 10.5 GPM. Unlike a trapped-pressure unloader, this adjustable regulator maintains a steady working setpoint and diverts only excess flow to bypass, helping pumps run cooler and more efficiently during long duty cycles. With dual 3/8 in NPT female inlets and dual 3/8 in NPT female bypass ports, it supports flexible plumbing in carts, skids, and fixed wash bays. Built from corrosion-resistant materials with precision-machined internals, the VRT3R-310 delivers smooth control, consistent results, and long service life in demanding industrial and commercial environments.

VRT3R-310 Regulator Valve

WHAT THIS MEANS FOR YOUR RIG
When your operation requires a stable 4,500 PSI output across changing nozzle sizes, hose lengths, and tools, a regulator keeps pressure locked on target without the cycling “hunting” that fatigues operators and stresses components. Dual inlets simplify gauge tees and filter placement, while dual bypass ports make it easy to route excess flow to tank or into a heat-management loop for continuous-duty applications.

VRT3R-310 Regulator Valve – PERFORMANCE SPECS (QUICK REFERENCE)
• Max Pressure: 4,500 PSI (310 bar)
• Flow Capacity: up to 10.5 GPM
• Temperature: up to 194 F (90 C) typical; verify seal set for hot-chemical applications
• Connections / Ports: Inlet (x2) 3/8 in NPT female; Bypass (x2) 3/8 in NPT female; Outlet 3/8 in NPT female
• Control Type: pressure regulator (maintains set pressure and sends excess flow to bypass)
• Typical Use: industrial and commercial cold- or hot-water pressure washers requiring steady, repeatable pressure

VRT3R-310 Regulator Valve BUILD & MATERIALS (MADE TO LAST)
A robust, corrosion-resistant housing and precision valve stack provide smooth modulation with minimal pressure oscillation. Metal NPT-female ports support repeatable torque and leak-resistant sealing. The high-pressure spring and internal geometry are tuned for the 310-bar class, helping preserve calibration under vibration and frequent cycling. The serviceable design, clear port layout, and common wear components make preventive maintenance straightforward for shop techs and field crews.

BENEFITS & DIFFERENTIATORS (WHY CHOOSE THE VRT3R-310 Regulator Valve)
• Stable set pressure at 4,500 PSI: uniform cleaning performance across tools and hose lengths
• Cooler pump operation: bypasses only excess flow to help reduce heat and cavitation risk
• Flexible plumbing: dual inlets and dual bypass ports streamline tees, gauges, reels, and return-to-tank lines
• Operator comfort: reduced chatter and drift lowers fatigue on long shifts
• Predictable maintenance: serviceable components and widely available wear parts
• US-standard integration: 3/8 in NPT-female ports fit common fittings and accessories

INDUSTRIES & APPLICATIONS
• Industrial pressure washers and plant wash bays
• Commercial cleaning systems and maintenance crews
• Fleet, bus, and heavy equipment wash facilities
• Municipal and public works equipment washdown
• Construction and rental yards
• Agriculture and food equipment washdown where chemical compatibility is verified

COMPATIBILITY & FIT (MOUNTING / PLUMBING / NOZZLES)
• Plumbing and orientation: install downstream of the pump and upstream of the hose or reel. Route bypass ports back to supply tank or to a cooling/recirculation loop per your design. Use thread sealants rated for high-pressure water service and verify torque on metal fittings.
• Porting standard: Inlet (x2) 3/8 in NPT female; Bypass (x2) 3/8 in NPT female; Outlet 3/8 in NPT female.
• Power pairing: ideal with triplex pumps delivering up to 10.5 GPM at or below 4,500 PSI. Include thermal relief, inlet filtration, a regulator gauge tee, and burst-rated hose/wand assemblies.
• Nozzle/orifice guidance: size the spray tip to match your pump GPM at the target PSI. Correct orifice is critical for steady regulation. After the correct tip is installed, set working pressure with flow present (trigger open), then lock the setting.
• Accessories to pair: high-pressure hose (rated ≥ system PSI), thermal relief valve, inlet filter or screen, pressure gauge tee, and return-to-tank plumbing hardware.

SETUP, SERVICE & RELIABILITY
Prime with clean water, purge air, and verify supply before first start. Adjust pressure only with the trigger pulled to avoid false readings and over-pressure. Inspect inlet screens and strainers regularly; watch for creeping pressure or chatter as indicators of wear or contamination. Service using the appropriate regulator wear parts on a preventive schedule. Keep temperature, water quality, and chemistry within manufacturer limits to maximize seal life and efficiency.

WHAT’S INCLUDED
• VRT3R-310 pressure regulator valve
• Ports: Inlet (x2), Bypass (x2), Outlet: all 3/8 in NPT female (National Pipe Thread, US)
• Basic installation and setup guidance

NOTES on the VRT3R-310 Regulator Valve

• This model is a regulator (maintains pressure, bypasses excess flow), not a trapped-pressure unloader.
• If your system uses BSPP/BSPT or quick-connects, include proper adapters. List any included adapters or plugs on your product page so installers can match threads on the first visit.”

For additional industry standards and technical resources, visit: https://www.pumps.org/