Two figures decide what a pressure washer will actually do and they are usually read the wrong way round. Pressure in bar breaks the dirt off the surface. Flow in litres per hour carries it away. A high pressure machine with low flow strips a small patch slowly; the pair together is what cleans a vehicle or a yard in reasonable time.
The range runs 100 to 207 bar with motors from 1200W to 2500W. Sealey PW machines cover the domestic and light commercial end with TSS and Rotablast nozzles, Draper run 105 to 195 bar, and SIP Tempest and CW machines reach 207 bar including a wall-mountable body for a fixed washdown point.
Duty class is the third decision and it is about how long the machine runs, not how hard. A DIY machine used daily fails early; a professional body is built for continuous work. V-TUF split this explicitly, with DIY V3, V5 and V7 bodies alongside professional HDC machines, and hold 110V site versions of both. V-TUF also hold tufJET machines between the two, for work that is heavier than DIY but lighter than daily commercial use.
Nozzles and foam change what the machine does more cheaply than a bigger motor does. A rotating nozzle concentrates the jet into a spinning point that strips far faster than a fan, and snow foam combos at 390 to 450 litres per hour lay detergent before the rinse. Cordless 20V and a 12V rechargeable cover work away from a socket. Questions go over WhatsApp on 07754288583.