Pressure sustaining flanged valve with electric control and plastic pilot

Description

Hydraulic control valve used to maintain upstream pressure value constant. When the incorporated 3/2 solenoid receives the order for opening the valve opens only when the inlet pressure reaches a preset level by means of a three way plastic sustaining pilot incorporated. This valve controls the inlet pressure and maintains it above the preset pressure 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+4993103″27526517215,7
DN100  892345 +4993104″31529020422,7
DN125  892355+4993105″31530520429,1
DN150  892365+4993106″40035030251,1
DN200  892385+4993108″56040030264,1
DN250  892410+49931010″460515372111,1
DN300  892412+49931012″580550372161,1

Codes of valves with high pressure diaphragm AP, for valves with low pressure diaphragm BP, please consult. Valves with 24 VAC NO solenoid. Other voltages, please consult.

Solenoids
PortWaysFunctionOrificeBody MaterialVoltage*Wires
1/8″”3NO,NC1,2;1,6Reinforced Nylon24 VAC; 9-12 Latch2
1/8″; 1/4″3NO,NC1,2;1,6;2,0Brass24 VAC; 110 VAC; 9-12 Latch2

 

MAXIMUM PRESSURES:

Plastic Body: Protection Class IP66
FunctionOrificeACDCDC Llatch
NC1,211911
1,6656
NO1,2121212
1,6888

 

Brass Body: Protection Class IP65 with connector
FunctionPowerOrifice
1,21,62,0
NCADC201510
AC/8W DC/10W301714
AC/5,5W201510
AC/2,5W DC/5,5W DC/3,5W16109
NOADC201511
AC/8W DC/10W221712
AC/5,5W201511
AC/2,5W DC/3,5W18128

 

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