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