It is with great pride that 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, high-precision 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. These are the demanding conditions for which the Caleffi PresCal HP family of PRVs is designed. The high-range model serves as a first-stage PRV in a two-stage application. The low-range model serves as a stand-alone PRV for neutralizing punishing pressure spikes.
“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 PresCal HP is truly a problem-solver because instead of using a flexible, rubber diaphragm separating the high pressure and low pressure chambers inside the PRV, the HP uses a durable piston design. Additionally the valve is pressure compensated, meaning 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. They also allow for different types of piping connections on the inlet and outlet. The high-range model is available from ½- to 2-inch sizes. The low-range model is available from ½- to 1½-inch sizes. Both models have an easily removable and replaceable cartridge, which reduces the downtime to clean or maintain the valve.
For more information on the PresCal HP family line-up, call Caleffi at (414) 238-2360.
Source: Caleffi
