The Caleffi PresCal 533H compact pressure reducing valve is precision engineered to deliver accurate pressure regulation at a competitive price. Low internal pressure losses produce excellent falloff performance enabling more flow capacity to fixtures.
PresCal Compact 533H series pressure reducing valves, ideal for small system applications, are constructed of a DZR low-lead forged brass body and incorporate a unique noise reducing and high flow seat design. It can be easily serviced with a replaceable cartridge and has an integral stainless steel filter (35 mesh), suitable for water systems that may contain sediment and debris. A tamper-resistant cap is included to replace the standard cap to hide the adjustment screw to prevent set point tampering.
The valves comply with NSF/ANSI 61 (180°F/82°C Commercial Hot) as certified by ICC-ES, and with NSF/ANSI 372, low lead, and codes IPC, IRC, NPC and UPC for use in accordance with the US and Canadian plumbing codes, as certified by ICC-ES.