Pressure sustaining flanged valve with plastic pilot

Description

Hydraulic control valve used to maintain upstream pressure value constant. The valve opens when the inlet pressure reaches a preset level by means of a three way plastic reducing pilot incorporated. This valve controls the inlet pressure and maintains it constant without being affected from upstream flow and pressure variations.
When upstream pressure value is lower than the preset pressure value, the valve closes completely.

Applications

Upstream pressure control.
Pump system protection against excessive demand.

Available models

DN80 (3”), DN100 (4”), DN125 (5”), DN150 (6”), DN200 (8”), DN250 (10”), DN300 (12”)

Dimensions / Pressure loss

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Description

References and dimensions
Product codeValveLHWKg.
DN80    892335+4990123″27526517215,5
DN100  892345 +4990124″31529020422,5
DN125  892355+4990125″31530520428,9
DN150  892365+4990126″40035030250,9
DN200  892385+4990128″56040030263,9
DN250  892410+49901210″460515372110,9
DN300  892412+49901212″580550372160,9

(Codes of valves with high pressure diaphragm AP, for valves with low pressure diaphragm BP, please consult)

Minimum working pressure
ValveLow PressureHigh Pressure
DN800,40,7
DN1000,50,7
DN1250,50,7
DN1500,61
DN2000,60,9
DN2500,71,0
DN3000,71,0

 

Head loss, fully opened valve (mca)
Flow (m3/h)
Valve203040506070809010012515020030040050060080010001200
DN800,440,972,623,735,036,518,1810,03
DN1000,350,681,091,582,132,753,424,154,957,159,66
DN1251,001,252,104,559,865,10
DN1501,252,703,758,00
DN2001,002,001,006,008,90
DN2501,652,103,826,10
DN3000,951,322,403,605,10
Bold: Advised flow rates