General Pump TS1531 3/4" FPT 35mm 7.9GPM 2175PSI - 1998

General Pump TS1531: What It Is & Why It Matters

The General Pump TS1531 is a heavy-duty triplex plunger pump built for professional pressure washing applications that demand maximum volume and reliable performance. Delivering a flow rate of 7.92 GPM at a maximum rated pressure of 2175 PSI and operating at 1450 RPM, this 69 Series solid shaft pump is engineered for continuous-use cleaning systems. Its industrial-duty construction-featuring a forged brass manifold, solid ceramic plungers, and unitized stainless steel inlet and discharge valves-makes it a preferred pump frame for OEM builds, fleet wash stations, and commercial contractors across the pressure cleaning industry.

Why You'll Love the General Pump TS1531

Whether you're a contractor, facility manager, or OEM integrator, these are the real-world benefits that matter:

• High volume for faster cleaning passes – At 7.92 GPM, the TS1531 dramatically speeds flat surface cleaning, fleet washing, and heavy equipment washdown. Misting and wet sandblasting applications also benefit from its high flow rate.

• Smooth, low-RPM operation – Running at a maximum pump speed of 1450 RPM reduces vibration, lowers noise, and extends the life of every internal component compared to higher-speed pumps.

• Durable construction for continuous duty – The triplex plunger design, oversized connecting rods for maximum life, and heavy duty tapered roller bearings handle sustained industrial loads without compromise.

• Versatile for hot or cold water systems – The pump is designed to handle both hot and cold water systems with a maximum fluid temperature of 165°F, making it suitable for stationary rigs and trailer-mounted setups alike.

• Easy service and parts support – Seal kits, valve kits, and TS1531-specific components are readily available, keeping downtime short and maintenance predictable.

• Reliable in demanding environments – From agricultural sanitation and cleaning heavy organic matter to industrial manufacturing washdowns, this pump delivers predictable performance where it counts.

What Makes the TS1531 Different

Most pressure washer pumps chase high PSI numbers at the expense of flow and longevity. The TS1531 takes the opposite approach-prioritizing volume and durability at a moderate pressure that still handles serious cleaning work.

• 69 Series high-flow head – The 69 Series bore and stroke dimensions (20 mm bore, 22 mm stroke) support nearly 8 GPM without sacrificing pressure stability.

• Solid shaft configuration – The solid shaft design supports belt or coupler drive connections to gas engines, diesel engines, or electric motors with excellent long-term alignment stability.

• Premium internal components – A forged brass manifold, solid ceramic plungers that reduce wear and extend operational life, and steel inlet and discharge valves resist corrosion and abrasion in harsh water conditions.

• Large capacity die cast aluminum crankcase – The crankcase has a large-capacity aluminum oil bath for heat dissipation, with a crankcase capacity of 67.63 oz and an oil gauge window for easy level monitoring.

• Trusted in professional and OEM builds – The TS-series is commonly used in commercial pressure washing applications and industrial maintenance platforms worldwide.

How the General Pump TS1531 Works in Your System

1. Mount and align the pump – Secure the TS1531's solid shaft to your electric motor or gas engine via belts or a coupler. Proper alignment at the correct shaft diameter is critical for bearing longevity. The pump is available in right-side and left-side crankshaft configurations.

2. Connect water, discharge, and unloader – Plumb the inlet port thread (3/4 BSP-F) and discharge port thread (3/8 BSP-F) connections. Install proper filtration and a correctly sized unloader or regulator-pressure protection devices are necessary for high-pressure systems.

3. Fill, prime, and run – Fill the crankcase with non-detergent SAE 30W oil to the dot on the oil gauge window. Prime the pump with water before starting the engine or motor.

4. Deliver continuous flow and pressure – The three triplex plunger cylinders produce a steady 7.92 GPM at up to 2175 PSI for wands, surface cleaners, or process nozzles. Note: the pump's rated limits often are not achievable simultaneously-match nozzle sizing to your actual operating needs.

General Pump TS1531 Technical Details

• Flow: 7.92 GPM (30 L/min)

• Maximum Pressure: 2175 PSI (150 bar)

• Speed: 1450 RPM

• Estimated Power Requirement: ~11.8 BHP

• Bore / Stroke: 20 mm / 22 mm

• Pump Dimensions: 15.2" × 13.4" × 7.7"

• Weight: 47 lbs

• Crankcase Material: Anodized die cast aluminum

• Manifold: Forged brass (lifetime warranty)

• Plungers: Solid ceramic

• Valves: Stainless steel inlet and discharge

• Oil Capacity: 67.63 oz (non-detergent SAE 30W)

• Maximum Inlet Pressure: 125 PSI

• Maximum Fluid Temperature: 165°F

• Shaft: Solid, 35 mm diameter; left handed and right-hand versions available

• Unloader/regulator: Required, sold separately

Maintenance & Longevity Tips for the TS1531

The pump's design minimizes maintenance overhead and reduces friction, but correct service practices are essential for maximum life:

• Fill oil correctly – Fill crankcase to the dot on the oil gauge window using non-detergent SAE 30W oil.

• Break-in oil change – Change oil after the first ~40 hours to flush machining debris.

• Routine oil changes – Every 3 months or ~500 operating hours, whichever comes first.

• Monitor seals and valves – Watch for pressure loss, water in oil, or leaks as signs that service is due.

• Never run dry – Maintain proper water supply and filtration to protect ceramic plungers and packing.

• Winterize for storage – Use pump saver or antifreeze solutions in cold climates.

Who the General Pump TS1531 Is Best For

• Fleet washing and mobile detailers – High flow for rinsing trucks, buses, and heavy equipment quickly.

• Commercial and industrial facilities – Plants, warehouses, and food-processing operations needing dependable wash systems. It is utilized in industrial manufacturing and maintenance for washdowns.

• Contractors and surface-cleaning pros – Concrete, parking lot, and building-wash professionals who benefit from 7.9 GPM on surface cleaners.

• OEMs building custom pressure washer skids – Integrators needing a proven 69 Series pump with solid shaft for belt-drive packages.

Before ordering, confirm your power source HP and RPM, desired pressure, and flow requirements to ensure the TS1531 is the right match.

Frequently Asked Questions about the General Pump TS1531

What are the key specifications of the TS1531? It delivers 7.92 GPM at 2175 PSI, operates at 1450 RPM, and requires approximately 11.8 BHP. General Pump provides detailed specifications for installation and maintenance.

What type of oil does the TS1531 use? Non-detergent SAE 30W pump oil. Change after the first 40 hours, then every 3 months or 500 hours.

Can I run hot water through the TS1531? Yes-maximum fluid temperature is 165°F. Verify your seals and system design are compatible with your hot water source.

What applications is the TS1531 not ideal for? Very high-pressure jobs above 3000 PSI where concentrated impact matters more than coverage. Choose a higher-pressure, lower-flow General Pump model instead.

Does the TS1531 come with an unloader? No. Unloaders, regulators, hoses, and other accessories are sold separately.

Ready to Put the TS1531 to Work?

The General Pump TS1531 is built for customers who need reliable, high-flow performance in professional cleaning systems. With 7.92 GPM at 2175 PSI, durable 69 Series construction, and high durability materials that contribute to its long service life, it's a pump you can count on job after job.

Contact Barens today to confirm compatibility with your motor or engine, choose the right unloader and accessories, and order your TS1531.