Skip to content

Caleffi 533650HA 3/4" Press Union x FNPT PresCal™ Compact Pressure Reducing Valve w/out Gauge

Save 32%
Original price $64.00
Current price $43.29
SKU 533650HA
Currently 1 in stock.

Caleffi 533650HA 3/4" Press Union x FNPT PresCal™ Compact Pressure Reducing Valve w/out Gauge

Pressure reducing valves are devices which, when installed in water systems, reduce and stabilize the pressure of the water entering from the water supply main. This pressure, in general, is too high and variable for domestic systems to operate correctly. The PresCal™ Compact 533H series pressure reducing valve, ideal for small system applications, is constructed of a DZR low-lead forged brass body and incorporates a unique noise reducing and high flow seat design. It is easily serviced with a replaceable cartridge and has an integral stainless steel filter (35 mesh), helpful for water systems that may contain sediment or debris. A tamper-resistant cap is included to replace the standard cap to hide the adjustment screw to help prevent set point tampering. The valve complies with NSF/ANSI 61 (180°F/82°C Commercial Hot) as certified by ICC-ES, and complies 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.


DZR low lead "Ecobrass" body with inlet union connection.

  • Low friction anti-scale moving parts
  • High flow seat design.
  • Replaceable cartridge.
  • Integral stainless steel filter.
  • Adjustment screw for pressure set point.
  • Tamper-resistant cap included.
  • Max working pressure:  250 psi (17.25 bar)
  • Max working temperature:  180°F (80°C)
  • Pressure setting range:  15 - 80 psi (1 - 5.5 bar)
  • Factory setting:  45 psi (3 bar)

Compliance with the following codes:  IPC, IRC, NPC and UPC for use in accordance with the U.S. and Canadian plumbing codes

Compliance with the following standards:  
     ASSE 1003
     CSA B356
     NSF/ANSI 61, Drinking Water System Components - Health Effects
     NSF/ANSI 372, Drinking Water System Components - Lead Content
     Reduction of Lead in Drinking Water Act, California Health and
                  Safety Code 116875
      S.3874, Reduction of Lead in Drinking Water Act
      Vermont Act 193 - The Lead in Plumbing Supplies Law
      Hb.372, Maryland's Lead Free Law


    Technical Brochure

    Instruction Sheet