In this product training video, Caleffi Hydronic Solutions presents an in-depth look at the PresCal™ 535H Series Pressure Reducing Valve (PRV). Learn how the 535H series protects residential and commercial plumbing systems from high incoming municipal water pressure while streamlining installation with its calibrated pre-adjusting knob.

In this video, you’ll learn:

• How the PresCal™ 535H Series controls static and dynamic pressure in water systems
• The pre-adjustment feature that allows precise PSI setting before water system startup
• Internal self-contained cartridge design for easy inline cleaning and servicing
• High-flow performance with minimal head loss and low-noise operation
• Key installation best practices for maximum system protection and reliability