Looking for a water-saving pre-rinse spray valve?
Spray valves and energy efficiency
Pre-rinse spray valves (PRSVs) are used in the commercial kitchen to remove solid food residue from dishes before washing. They are not a user of direct energy, but they do control the amount of hot water used in the pre-rinse stage.
PRSVs generally consist of a spray nozzle, a squeeze lever that controls water flow, an insulated handle and a dish-guard bumper. Most PSRVs also include a spray-handle clip that locks the lever in full-spray position for continuous use.
Dishwashing operations account for more than two-thirds of a typical restaurant’s water use, and PRSVs are estimated to use nearly half of the total dishwashing water, which is always heated. Low-flow PSRVs, therefore, consume substantially less water and energy than standard models.
Standard PSRVs have flow rates ranging from 10 to 20 litres per minute (Lpm) or 2.6 to 5.2 gallons per minute (gpm), whereas low-flow PRSVs have flow rates of 6.1 Lpm (1.6 gpm).
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