Caleffi PresCal™ HP Piston-type PRV Named AHR Innovation Award Winner

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It is with great pride Caleffi North America announces that the 536 Series PresCal™ HP has been recognized by the AHR Innovation Awards judges as the 2023 Plumbing product winner. The only direct-acting pressure regulating valve in North America with true piston operation, the PresCal HP family ensures stable water pressure control while withstanding severe inlet pressure or punishing downstream water hammer. It’s perfect for staged pressure control or demanding applications that are fraught with extreme pressure fluctuations.

"It is such an honor to be recognized again by the ASHRAE member panel of judges for this uniquely designed plumbing product," said Kevin Freidt, Director of Product Management and Technical Services. "The high-range PresCal HP model, with an adjustment range of 90 - 150 psi, is specifically designed to handle extremely high supply pressure or booster pump systems in highrise buildings where two-stage pressure reduction is needed. The low-range models, with a range of 10 - 90 psi, are perfect for irrigation, commercial laundry and dishwasher applications where severe water hammer can cause premature failure of a diaphragm-type PRV.”

The valve is pressure compensated: the force from upstream pressure acting on the valve plug is precisely canceled out by the countering force acting on the piston. This enables stable, controlled downstream pressure that is independent of upstream pressure changes.

Dual union connections are standard and convenient, thus simplifying installation and repairs to reduce contractor costs. The high-range model is available from ½” to 2” sizes. The low-range model is available from ½” to 1½” sizes. Both models have an easily removable and replaceable cartridge, which reduces the downtime to clean or maintain the valve.

The valve complies with NSF/ANSI/CAN 372 and NSF/ANSI/CAN 61 low lead laws, as certified by ICC-ES. The low range valve complies with ASSE 1003, CSA B356, and meets codes IPC, IRC and UPC for use in accordance with the U.S. and Canadian plumbing codes.

Visit Caleffi real-time during AHR Expo 2023 at Booth B3317 or visit us virtually at www.caleffi.us for more information about this award winning product.

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