Stack-mounting Pilot-operated Check Valves SRE

Description

ISO sizes 2 … 7, series SRE… / SREA… / SREZ…

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.

Stack-mounting valves with ISO / DIN / NFPA / ANSI interface.

Advantages

- High pressure rating
- Virtually zero leakage
- Small opening pressures

Technical Data

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