Pressure sustaining grooved 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

2”, 3” and 4”

Dimensions / Pressure loss

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Description

References and dimensions
Product code	Valve	L	H	W	Kg.
892420+499310	2″	203	128	128	4,5
892430+499310	3″	231	165	172	8,2
892440+499310	4″	283	200	204	12,4

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

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

Solenoids
Connexions	Ways	Function	Orifice	Body Material	Voltage*	Wires
1/8″”	3	NO,NC	1,2;1,6	Reinforced Nylon	24 VAC; 9-12 Latch	2
1/8″; 1/4″	3	NO,NC	1,2;1,6;2,0	Brass	24 VAC; 110 VAC; 9-12 Latch	2

MAXIMUM PRESSURES:

Plastic Body: Protection Class IP66
Function	Orifice	AC	DC	DC Llatch
NC	1,2	11	9	11
	1,6	6	5	6
NO	1,2	12	12	12
	1,6	8	8	8

Brass Body: Protection Class IP65
Function	Power	Orifice
		1,2	1,6	2,0
NC	ADC	20	15	10
	AC/8W DC/10W	30	17	14
	AC/5,5W	20	15	10
	AC/2,5W DC/5,5W DC/3,5W	16	10	9
NO	ADC	20	15	11
	AC/8W DC/10W	22	17	12
	AC/5,5W	20	15	11
	AC/2,5W DC/3,5W	18	12	8

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