Pressure sustaining grooved 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

2”, 3” and 4”

Dimensions / Pressure loss

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Description

References and dimensions
Product code	Valve	L	H	W	Kg.
892420+499012	2”	203	128	128	4,3
892430+499012	3″	231	165	172	8,0
892440+499012	4”	283	200	204	12,2

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

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

Head loss, fully opened valve (mca)
	Flow (m³/h)
Valve	5	10	15	20	25	30	35	40	45	50	55	60	65	70	80	90	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″	0,08	0,35	0,82	1,50	2,40	2,80	4,85	6,42	8,22	10,25
2″ 1/2	0,05	0,30	0,60	1,20	0,68	1,85	3,95	4,90	6,10	7,75	9,00	10,15
3″	0,04	0,12	0,25	0,44	0,50	0,68	1,31	1,70	2,13	2,62	3,15	3,73	4,35	5,03	6,51	8,18	9,08	10,03
4″	0,03	0,11	0,22	0,35	0,68	0,50	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