Caleffi 535651HA PresCal 3/4" Press Pressure Reducing Valve with Gauge

The Caleffi 535651HA PresCal pressure reducing valve is designed to regulate and stabilize water pressure in residential and commercial plumbing systems. This precision-engineered valve protects fixtures and appliances from damage caused by excessive water pressure, which commonly enters from municipal water supplies at pressures too high for domestic use.

Key Features:

• 3/4" press union connections for fast, reliable installation
• Pre-adjustable pressure range of 15-90 PSI with factory setting at 45 PSI
• Integrated pressure gauge with front and back set point indication for visibility in any mounting orientation
• Low lead dezincification resistant "Ecobrass" body for durability and compliance
• Replaceable self-contained cartridge design with integral stainless steel filter for easy maintenance
• Pressure balanced cartridge with noise-reducing technology
• Low friction, anti-scale internal components for long service life
• UV protective cover included for outdoor installations
• Tamper-proof adjustment locking screw prevents unauthorized changes

Specifications:

• Maximum working pressure: 300 PSI
• Maximum working temperature: 180°F
• Maximum flow rate: 12.5 GPM
• Temperature range: 35.6°F to 180°F
• Pressure gauge connection: 1/4"

This valve is certified to ASSE 1003, CSA B356, NSF/ANSI 61, NSF/ANSI 372, and complies with Low Lead Laws. It meets IPC, IRC, UPC, and NPC codes for use in accordance with U.S. and Canadian plumbing standards. The conical seat and shuttle design minimizes pressure drop, while peroxide-cured EPDM elastomers provide chlorine and chloramine resistance for extended service life.