What Is a Pressure Washer?
A pressure washer, a device powered by electric or gasoline engines, ejects water at high pressures to clean various surfaces. Originating in Europe in the 1950s, its utility in cleaning without detergents has popularized it across both domestic and industrial settings.
Applications of Pressure Washers
Widely utilized in homes, factories, and outdoor areas, pressure washers are adept at cleaning house exteriors, garden fixtures, vehicles, and more. Industrial applications extend to cleaning workspaces post-operation. However, caution is advised to prevent damage to sensitive surfaces like exterior paint.
Principle of Pressure Washers
Operating on Pascal’s principle, pressure washers amplify water pressure through mechanical means, often by forcing water through narrow passages or around rapidly spinning impellers. This process can significantly increase water pressure, enhancing cleaning efficiency.
How to Choose a Pressure Washer
Selection criteria include discharge pressure, motor type, water supply method, nozzle design, and power supply:
- Discharge Pressure: Measured in megapascals (MPa), this determines the washer’s cleaning power. Normal discharge pressure, indicative of everyday use, is more relevant than maximum pressure.
- Motor Type: Choose between quieter induction motors and powerful, compact universal motors based on your noise tolerance and power needs.
- Water Supply Method: Options range from direct tap connections for unlimited supply to tank or self-priming types for portability and versatility in water sources.
- Nozzle Type: Adjustable spray angles for pressure control or rotating nozzles for intensified cleaning are available to suit various tasks.
- Power Supply: Corded models offer sustained power, while cordless options provide flexibility, and engine-powered washers excel in outdoor, electricity-scarce environments.
Considerations for noise, mobility, water source, and specific cleaning tasks will guide your optimal choice of pressure washer.