call back
Back to Top
The pressure reducing valve AQUA 80-451, can be used in water distribution systems and on domestic distribution systems to protect installations from a high inlet (upstream) pressure. Regardless of variations of inlet pressure, the pressure reducing valve AQUA 80-451 will reduce and maintain a lower and constant outlet (downstream) pressure.

  • Pressure Rating PFA 25 bar max
  • Downstream Adjustment Range 1 to 6 bar
  • Complies with EN 1567
  • Outlet Gauge / Test port
  • AQUA 80-451 : Material Specifications

  • Body and moving parts: dezincification resistant alloy EN 12165 & 12164
  • Cover: PA 66 G 30
  • Stem: Stainless Steel
  • Seat: Synthetic material
  • Diaphragm: RBR
  • Gaskets: RBR
  • Strainer: Stainless Steel
  • AQUA 80-451 : Technical Specifications

  • Medium: Water
  • Max. working temperature: 40°C
  • Factory setting: 3 bar
  • Connections: BSP Male
  • Downstream pressure gauge: optional
  • AQUA 80-451 Technical Specifications

    Dimensions
    A(DN) B B2 C D E WEIGHT
    mm mm mm mm mm kg
    1/2" 140 76 20.5 112 Ø54 0.9
    3/4" 160 90 20.5 112 Ø54 1.1
    1" 180 95 20.5 112 Ø54 1.4
    1 1/4" 200 110 40 178 Ø73 2.6
    1 1/2" 220 120 40 178 Ø73 3.4
    2" 250 130 40 178 Ø73 4.3
    Flow coefficient
    DN 1/2" 3/4" 1" 1 1/4" 1 1/2" 2"
    Kv(m3/h) 2.6 2.8 3.0 5.9 12.6 12.6
    Cv (l/s) 0.72 0.78 0.83 1.64 3.5 3.5
    Nominal flow rates (recommended average velocity of 2 m/s)
    Ø 1/2" 3/4" 1" 1 1/4" 1 1/2" 2"
    Flow(m3/h) 1.27 2.27 3.6 5.8 9.1 14.0
    Flow(l/min) 21.16 37.83 60 96.66 151.66 233.33