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.
Refrigerator Water Filters and Pressure
Everything connected to a pressurized system needs to operate within the maximum pressure that system will experience to avoid leaks and other problems. For example, the EDR1RXD1 Everydrop water filter used on many different brands of refrigerators is a mechanical and chemical reduction filter with a flow rate of 0.5 gallons per hour (gph) and capacity to filter 200 gallons of water. As the contaminants that the filter removes build up, the filter should be changed every 6 months (or 200 gallons of water). While the filter can withstand 120 psi, to avoid problems, the manufacturer recommends installing a pressure reducing valve if the water supply is over 80 psi.
The manufacturer’s confidence in the filter’s ability to withstand 120 psi maximum pressure and then applying in a safety margin of 40 psi could be obtained from the material design parameters and simulation, but should ultimately be determine by qualification testing and then guaranteed in production by periodic quality control sampling. For the physical testing, an All Sensors SPA 401 series pressure sensor would be an excellent choice to make reliable and accurate measurements.
Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
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