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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 picture type Q max. l/min P max. bar opening pressure ratio cavity type thread data sheet
SREA-A… 25 250 1 : 3.3 ISO 4401-02-01 SRE-4_400-P-465101
SREZ-A… 60 315 1 : 6 ISO 4401-03-02 / DIN 24 340 SRE-6_400-P-466101
SREZ-A… 120  315  1 : 6  ISO 4401-03-02 / DIN 24 340  SRE-10_400-P-467101
SREA-B… 25  250  1 : 3.3  ISO 4401-02-01 SRE-4_400-P-465101
SREZ-B… 120  315  1 : 6  ISO 4401-03-02 / DIN 24 340 SRE-10_400-P-467101
SREA-B… 300  350   1 : 13
ISO 4401-07-07 / DIN 24 340
SRE-16_400-P-468101
  SREA-AB… 25  250  1 : 3.3  ISO 4401-02-01 SRE-4_400-P-465101
SREZ-AB…  60 315  1 : 6  ISO 4401-03-02 / DIN 24 340 SRE-6_400-P-466101
SREA-AB… 120  315   1 : 6 ISO 4401-03-02 / DIN 24 340 SRE-10_400-P-467101
SREA-AB… 300  350  1 : 13  ISO 4401-07-07 / DIN 24 340 SRE-16_400-P-468101