Draper Expert Petrol Pressure Washer, 13Hp

The Draper Expert PPW1300 is a heavy-duty professional petrol pressure washer built for the most demanding cleaning tasks in locations where mains power is unavailable. Driven by a 389cc 13HP four-stroke petrol engine, it delivers a working pump pressure of 234 bar (3,400psi) with a maximum of 262 bar (3,800psi) and a continuous flow rate of 12 litres per minute – performance figures that put it firmly in professional and industrial territory, well beyond the capability of any electric pressure washer in its class.

A heavy-duty triplex brass pump head with pressure regulator forms the heart of the system, delivering consistent, controlled output across extended working sessions. The unit is supplied complete with a 10-metre steel-reinforced HP rubber hose, metal gun, five-piece nozzle set, ¼-inch plastic hose adaptor, and a fuel funnel with hose – everything needed to get to work immediately on arrival.

Important: Due to the extreme water pressure produced by this machine, it is not suitable for use on domestic vehicles. Always use the appropriate nozzle for the task and follow the manufacturer's safety guidelines.

Key Features & Benefits

234 Bar Working Pressure – Professional Grade Power

At 234 bar (3,400psi) working pressure, the PPW1300 operates in a class above domestic and prosumer pressure washers. This level of pressure cuts through the most tenacious contamination: years of compacted grime on concrete yard surfaces, heavy oil and grease deposits on workshop floors, thick algae and moss on stone walls and agricultural buildings, and deep-set dirt on construction plant and heavy machinery. Where domestic machines plateau, the PPW1300 continues to work.

262 Bar Maximum Pressure

The maximum output of 262 bar (3,800psi) provides additional headroom for specialist tasks requiring peak pressure bursts, while the pressure regulator allows the working output to be dialled back for surfaces and materials where the full 234 bar would cause damage.

12L/min Flow Rate – High Volume, High Speed Cleaning

A flow rate of 12 litres per minute (720 litres per hour) is the other half of the cleaning equation alongside pressure. High flow rate rinses contamination away rapidly once the pressure has broken it free, covering large surface areas quickly and reducing total cleaning time on major jobs. Combined with 234 bar of pressure, the PPW1300 cleans faster and more thoroughly than lower-flow alternatives.

13HP 389cc 4-Stroke Petrol Engine

A 389cc four-stroke petrol engine producing 13HP powers the PPW1300, operating at 3,350–3,550rpm under no-load conditions to sustain the pump's high-pressure output. Four-stroke technology delivers reliable, clean combustion without oil-mixing requirements, and the high displacement provides the sustained torque needed for continuous high-pressure pumping across extended working sessions. Recoil pull start gets the engine running without the complexity of an electric start system.

Triplex Brass Pump Head with Pressure Regulator

The triplex pump head – three pistons operating in sequence – is the premium choice for professional pressure washing equipment, providing smoother, more consistent output with lower vibration and longer service life than single or double piston pumps. Brass construction offers superior corrosion resistance and durability compared to aluminium alternatives, critical for a pump operating under extreme pressure in outdoor conditions. The integrated pressure regulator allows output to be adjusted to match the task and surface.

No Mains Power Required

As a fully self-contained petrol unit, the PPW1300 operates completely independently of mains electrical supply. This makes it indispensable for cleaning in remote locations, agricultural buildings, construction sites, large yards and industrial facilities where a mains socket at the point of use isn't available, and for operators who need a single machine capable of working anywhere.

Complete Professional Kit

Supplied with a 10-metre steel-reinforced HP rubber hose for durability under sustained high-pressure use; a metal gun for professional handling and longevity; a five-piece nozzle set to match output to different tasks and surfaces; a ¼-inch plastic hose adaptor; and a fuel funnel with hose for safe, clean refuelling. Ready to work from the moment it arrives.

Five-Piece Nozzle Set – Versatile Output Control

The five nozzles in the set provide a range of spray patterns from concentrated high-pressure jets for removing stubborn deposits to wider fan patterns for rapid large-area rinsing. Matching the nozzle to the task protects surfaces and maximises cleaning efficiency at the appropriate pressure and pattern for each application.

Full Specification

What's in the Box

• Draper Expert PPW1300 Petrol Pressure Washer
• 10m steel-reinforced HP rubber hose
• Metal gun
• Five-piece nozzle set
• ¼-inch plastic hose adaptor
• Fuel funnel with hose

Important: This machine produces extreme water pressure and is not suitable for use on domestic vehicles. Always follow the manufacturer's safety guidelines.

Who Is the Draper Expert PPW1300 For?

Agricultural & Farming Operations – Clean agricultural machinery, livestock buildings, silage clamps, slurry areas, and yard surfaces where industrial-grade contamination requires sustained high-pressure output. The petrol engine operates anywhere on the farm without mains connection.

Plant & Construction Equipment Cleaning – Remove compacted mud, oil, grease, and construction contamination from excavators, dumpers, concrete mixers, and site plant. The 234 bar working pressure and 12L/min flow rate tackle the heaviest deposits on large machines efficiently.

Industrial & Commercial Facilities – Clean warehouse floors, loading docks, factory yards, vehicle wash bays, and external building surfaces where professional-grade pressure is required and mains power at the point of use may not be available.

Groundworks & Civil Engineering Contractors – Clean concrete formwork, wash down plant, maintain site vehicles (excluding domestic cars – see caution), and keep site areas clean during and after works without depending on a mains power connection.

Drain & Gutter Cleaning Contractors – High-pressure water jetting for clearing blocked drains, downpipes, and guttering at commercial and industrial premises where domestic machines lack the pressure to clear heavy blockages.

Stone & Surface Restoration – Remove heavy moss, algae, lichen, and years of compacted grime from stone walls, paving, steps, and historic masonry where the job requires sustained professional pressure rather than a domestic machine's limited output.

Frequently Asked Questions

Why is the PPW1300 not suitable for domestic vehicles? At 234 bar working pressure, the PPW1300 produces far more force than domestic pressure washers (typically 100–150 bar). This pressure level can strip paint, damage rubber seals, force water into electrical connections, and cause irreversible damage to vehicle bodywork, trim, and finishes. It is designed for cleaning heavy plant, machinery, agricultural equipment, masonry, and concrete surfaces that require – and can withstand – industrial pressure. For vehicle washing, a lower-pressure domestic or prosumer machine is the appropriate choice.

What is a triplex pump and why does it matter? A triplex pump uses three pistons operating in a staggered sequence to produce pressure. This delivers smoother, more consistent output than single or duplex pumps, with less pulsation, lower vibration, and reduced wear on internal components. For sustained professional use, a triplex pump is the most reliable and longest-lasting pump design at this pressure level, and is the standard choice for professional and contractor-grade pressure washing equipment.

What is a pressure regulator used for? The pressure regulator on the PPW1300 allows the working output to be adjusted below the maximum 234 bar working pressure. This is important for surfaces and materials that would be damaged by full pressure – softer stone, wooden decking, painted surfaces on equipment – where a lower pressure setting cleans effectively without causing harm. It also allows the operator to match pressure to the task for the most efficient cleaning on each surface type.

How do I choose the right nozzle? The five-piece nozzle set typically includes nozzles with different spray angles: a 0° concentrated jet for maximum pressure on stubborn deposits; 15° and 25° fan nozzles for general cleaning; a 40° fan for delicate surfaces or wide-area rinsing; and a dedicated detergent nozzle for applying cleaning agents at low pressure. Always start with a wider angle nozzle and switch to narrower only if needed – and never use a 0° nozzle on surfaces that could be damaged by concentrated pressure.

Does it need mains water connection? Yes. The PPW1300 requires a mains water supply or a water tank with sufficient volume and flow to feed the pump. The engine and pump are petrol-powered; the water source must be supplied separately. Always ensure the water supply can sustain at least 12L/min flow to match the pump's output.

What fuel and oil does it use? The 13HP four-stroke engine runs on standard unleaded petrol. Check the manufacturer's recommendation for oil grade and capacity before first use, and always check oil level before each start.