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

Download technical PDF

Download PDF characteristics and dimensions

Download PDF scheme

Description

References and dimensions
Product code	Valve	L	H	W	Kg.
DN80 892335+499012	3″	275	265	172	15,5
DN100 892345 +499012	4″	315	290	204	22,5
DN125 892355+499012	5″	315	305	204	28,9
DN150 892365+499012	6″	400	350	302	50,9
DN200 892385+499012	8″	560	400	302	63,9
DN250 892410+499012	10″	460	515	372	110,9
DN300 892412+499012	12″	580	550	372	160,9

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

Minimum working pressure
Valve	Low Pressure	High Pressure
DN80	0,4	0,7
DN100	0,5	0,7
DN125	0,5	0,7
DN150	0,6	1
DN200	0,6	0,9
DN250	0,7	1,0
DN300	0,7	1,0

Head loss, fully opened valve (mca)

Flow (m³/h)

Valve

100

125

150

200

300

400

500

600

800

1000

1200

DN80

0,44

0,97

2,62

3,73

5,03

6,51

8,18

10,03

DN100

0,35

0,68

1,09

1,58

2,13

2,75

3,42

4,15

4,95

7,15

9,66

DN125

1,00

1,25

2,10

4,55

9,86

5,10

DN150

1,25

2,70

3,75

8,00

DN200

1,00

2,00

1,00

6,00

8,90

DN250

1,65

2,10

3,82

6,10

DN300

0,95

1,32

2,40

3,60

5,10

Bold: Advised flow rates