Pressure sustaining plastic 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

1 ½”, 2”, 3” BSP (NPT optional)
4” Victaulic

Dimensions / Pressure loss

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Description

References and dimensions
Product code	Valve	L	H	W	Kg.
892915/499006	1″1/2	188	129	147	1,8
892920/499006	2″	188	129	147	1,8
892930/499006	3″	252	167	209	3,3
892940/499006	4″	295	215	212	5,0

(Valves codes with low pressure diaphragm BP, for valves with high pressure diaphragm AP, consult.)

Minimum working pressure
Valve	Low Pressure	High Pressure
1″1/2	0,3	0,7
2″	0,3	0,7
3″	0,5	0,9
4″	0,5	1,0

Head loss, fully opened valve (mca)

Flow (m³/h)

Valve

100

125

150

1″1/2

0,08

0,35

0,82

1,50

2,40

3,51

4,85

6,42

8,22

10,25

2″

0,05

0,30

0,60

1,20

1,85

2,80

3,95

4,90

6,10

7,75

3″

0,04

0,12

0,25

0,44

0,68

0,97

1,31

1,70

2,13

2,62

3,15

3,73

4,35

5,03

6,51

8,18

10,03

4″

0,03

0,11

0,22

0,35

0,50

0,68

0,88

1,09

1,33

1,58

1,85

2,13

2,43

2,75

3,42

4,16

4,95

7,15

9,66

Bold: Advised flow rates