Pressure Washing

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

Pressure Washing

If you had your house painted recently by a good painter, you probably saw, or at least heard, the gas pressure washer used to get the dirt and loose paint off during the prep phase. For do it yourselfers, power washers are either gas or electric powered. Gas-powered models typically have 2,000 to 3,000 psi of pressure compared with 1,000 to 1,800 psi for electric models. If the home owner is cleaning decks, siding or other large areas, the gas-powered unit is recommended. However, the higher pressure from the gas-powered unit comes with higher noise level of 85 decibels (dBA) versus around 78 dBA for an electric model. To address different applications, many units have different nozzles but, in some cases, units may also have an unloader valve for pressure adjustment. Similar to other products that do not have a pressure gauge or a pressure sensor in a control circuit, the manufacture still has to use pressure sensing in the design qualification and quality control aspects of the product.

NorthStar Cold Water Pressure Washer

Image courtesy of NorthStar
https://www.amazon.com/NorthStar-Cold-Water-Pressure-Washer/dp/B00BINVIHC

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Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
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Power Washing or Pressure Washing?

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

Power Washing or Pressure Washing?

Washing your car or hosing off the driveway typically uses about 40 to 50 PSI of pressure. In contrast, the pressure in a power washer or a pressure washer can be 40 to 200 times higher. While these terms are sometimes used interchangeably, a power washer uses a high pressurized stream of hot water and pressure washer almost always uses high pressure cold or normal water. The operating pressure of the pressure washer varies considerably depending on the level of the machine.

Commercial grade pressure washers, can be from 1000 to 4000 PSI with pressures below 2000 PSI more common in more affordable units. For example, one electric pressure washer operates at 1600 PSI (max) and delivers 1.2 GPM (max). Another example, operates at maximum volume of 1.6 GPM and a maximum pressure of 2000 PSI.

Semi-pro pressure washers have a significantly higher power output, PSI and GPM ratings than commercial washers with 1800 to 3000 PSI and 1.6 to 4 GPM being typical ranges. These units typically use only cold water. Unlike an electric unit that operates at 1800 to 2000 PSI max, a gas type unit can deliver 2500 to 4000 PSI.

At the high end, professional pressure washers are rated at 3000 to 8000 PSI and 2 to 8 GPM and deliver cold and hot water. Pressure regulation is common in these units that allows decreasing the pressure for mixing with detergent, increasing the pressure for removing mold from brick or decreasing the pressure to sanitize commercial kitchens with hot water. Common applications of profession pressure washers include car washes, kitchens, meat packing facilities and more.

All Sensors CPA 602 Series media isolated ceramic amplified pressure sensors can address pressure measurements in pressure and power washing systems up to 6000 PSI.

Vortexx Pressure Washer

 

This professional pressure washer operates at 4000 PSI and 4 GPM max.
Source: Vortexx.

Comments/Questions?
Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
Email us at info@allsensors.com