SRG1535N | 4 GPM 4000 PSI Pump 1450 RPM 24mm Shaft Drive

SRG1535N Commercial-Grade High-Pressure Washer Pump

The SRG1535N is a robust, commercial-duty pressure washer pump engineered for professionals who require high-pressure performance from a compact, durable system. Delivering 4 GPM at 4000 PSI, this pump operates at 1450 RPM with a heavy-duty 24mm solid shaft—ideal for construction, mobile contracting, fleet service, and industrial facility maintenance.

Whether used in new builds or retrofit installations, the SRG1535N provides the perfect balance of power, efficiency, and longevity. Stainless steel valves, ceramic plungers, industrial seals, and precision machining ensure stable performance in demanding daily-use environments.

Key Specifications

• Flow Rate: 4 GPM
• Maximum Pressure: 4000 PSI
• Operating Speed: 1450 RPM
• Shaft: 24mm solid shaft (belt or direct drive compatible)
• Pump Series: SRG – commercial and industrial high-pressure systems

Durability You Can Depend On

The SRG1535N is built for rugged, continuous-duty operation. Every component is sized and engineered to withstand heavy use while maintaining consistent flow and pressure.

Heavy-Duty Construction Features

• Industrial-grade seals for long service life under high-pressure cycles
• Oversized crankshaft bearings for smooth, cool running
• Ceramic plungers for superior wear resistance
• Stainless steel valves designed for high-pressure longevity
• 24mm solid shaft ensures torque stability and alignment for belt or direct drive
• Low 1450 RPM operation reduces heat, vibration, and component fatigue

This low-speed configuration allows the pump to run cooler and quieter than high-RPM designs—resulting in longer intervals between service and improved reliability.

What’s Included with SRG1535N

• SRG1535N commercial triplex plunger pump
• Factory break-in oil for immediate operation
• Sight glass for clear and easy oil level checks
• Vented dipstick for proper crankcase ventilation
• Performance test documentation (each pump is bench-tested)
• User manual and system schematics
• 5-year commercial warranty backed by U.S. service and parts support

How the Pump Works

The SRG1535N is a precision-engineered triplex plunger pump designed to deliver smooth, pulsation-free output. Each plunger cycles in sequence to draw water through suction valves and discharge it at a consistent high pressure.

Operational Advantages

• Triplex plunger design ensures balanced mechanical load and smooth output
• Precision-machined valves maintain steady flow and pressure stability
• Lower 1450 RPM speed minimizes heat generation and extends seal life
• Reduced vibration protects bearings, plungers, and drive components

This high-efficiency system delivers full 4000 PSI performance with reduced wear, making it ideal for daily professional use.

Benefits of the SRG1535N

• High Pressure in a Compact Body – 4 GPM @ 4000 PSI without oversized equipment
• Engineered for Professionals – Built for construction, industrial, and mobile-use environments
• Flexible Installation – Compatible with belt drive and direct-drive configurations
• Lower Maintenance Costs – Ceramic plungers and industrial seals reduce wear
• Factory Tested – Every unit pressure-tested before shipping
• 5-Year Warranty – Commercial-grade coverage with U.S. based support

Typical Applications

• Construction wash-down: cleaning tools, equipment, forms, concrete, and jobsite surfaces
• Mobile pressure washing rigs: truck- or trailer-mounted power wash systems
• Facility maintenance: industrial plants, workshops, warehouses
• Fleet washing: trucks, trailers, vans, and heavy machinery
• Agriculture & food processing: sanitation and equipment cleaning environments

Why Choose the SRG1535N?

The SRG1535N is engineered for professionals who demand reliable, repeatable performance without the downtime associated with consumer-grade pumps. Its industrial bearing support, ceramic plungers, and stainless steel valves provide unmatched durability, while the sight glass and dipstick simplify routine maintenance.

Backed by a 5-year commercial warranty and U.S.-based parts support, this pump delivers both long-term value and professional-grade performance.

Summary of Features

• 4 GPM @ 4000 PSI output
• Low 1450 RPM for cooler, smoother operation
• 24mm solid shaft – belt or direct drive compatible
• Ceramic plungers + stainless valves for long service life
• Factory break-in oil included
• Sight glass + vented dipstick
• Ideal for construction, industrial, mobile rigs, and fleet washing
• Protected by a 5-year commercial warranty

The SRG1535N is the ideal choice when your pressure washing system demands compact size, dependable power, and long-term industrial durability.