Pilot Operated Check Valve

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Description
Pilot operated check valves prevent any flow in one direction. In the opposite direction, free flow with minimal pressure drop is possible. By applying a defined pilot pressure at X, the checked flow direction is held open as long as the pilot pressure is maintained.
Advantages
1. High pressure rating
2. Virtually zero leakage
3. Small opening pressures
Technical Date of Pilot Operated Check Valve

Symbol	Type	Q max. l/min	P max. bar	Opening pressure ratio	Interface	Data sheet
	SREA-A	25	250	1 : 3,3	ISO 4401-02-01	SRE-4_400-P-465101-en
	SREZ-A	60	315	1 : 6	ISO 4401-03-02 / DIN 24 340	SRE-6_400-P-466101-en
	SREZ-A	120	315	1 : 6	ISO 4401-03-02 / DIN 24 340	SRE-10_400-P-467101-en
	SREA-A	300	350	1 : 13	ISO 4401-07-07 / DIN 24 340	SRE-16_400-P-468101-en
	SREA-B	25	250	1 : 3,3	ISO 4401-02-01	SRE-4_400-P-465101-en
	SREZ-B	60	315	1 : 6	ISO 4401-03-02 / DIN 24 340	SRE-6_400-P-466101-en
	SREZ-B	120	315	1 : 6	ISO 4401-03-02 / DIN 24 340	SRE-10_400-P-467101-en
	SREA-B	300	350	1 : 13	ISO 4401-07-07 / DIN 24 340	SRE-16_400-P-468101-en
	SREA-AB	25	250	1 : 3,3	ISO 4401-02-01	SRE-4_400-P-465101-en
	SREZ-AB	60	315	1 : 6	ISO 4401-03-02 / DIN 24 340	SRE-6_400-P-466101-en
	SREA-AB	120	315	1 : 6	ISO 4401-03-02 / DIN 24 340	SRE-10_400-P-467101-en
	SREA-AB	300	350	1 : 13	ISO 4401-07-07 / DIN 24 340	SRE-16_400-P-468101-en

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