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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.
  • Sizes R 1/2" - 3/4" - 1" - 1 1/4" - 1 1/2" - 2"
  • Pressure Rating PFA 25 bar max
  • Downstream Adjustment Range 1 to 6 bar
  • Complies with EN 1567
  • Outlet Gauge / Test port
  • 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) 1,8 3,0 4,7 8,0 10,0 16,0
    Flow(l/min) 30 50 78 133 167 277