Special Hazards / Special Systems: Single Interlock Preaction Systems
![B-719-Cover-Figure](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-719-Cover-Figure.jpg)
Single Interlock Preaction System - 1-1/2" (40mm) - Electric Actuation Data sheet
![B-736CVRA](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-736CVRA.jpg)
Single Interlock Electric Release Preaction System - 2", 2-1/2", 3", & 76mm - DDX Valve Data sheet
![B-727-Cover-Figure](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-727-Cover-Figure.jpg)
Single Interlock Preaction System - 4" & 6" (100mm & 150mm) - DDX Valve Data sheet
![B-743-Single-Interlock-8-Electric-Actuation](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-743-Single-Interlock-8-Electric-Actuation.jpg)
Single Interlock Electric Release Preaction System - 8" - DDX Valve Data sheet
![B-734CVRA](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-734CVRA.jpg)
Wet Pilot Line Single Interlock Preaction System - 2", 2-1/2", 3" & 76mm - DDX Valve
![B-731-Wet-Pilot](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-731-Wet-Pilot.jpg)
Wet Pilot Line Single Interlock Preaction System 4" (100mm), 6" (150mm) & 165mm - DDX Valve
![B-741-Single-Interlock-Preaction-8](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-741-Single-Interlock-Preaction-8.jpg)
Wet Pilot Line Single Interlock Preaction System – 8" –DDX Valve
![B-735CVRA](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-735CVRA.jpg)
Pilot Line Single Interlock Preaction System 2", 2-1/2", 3" & 76mm –
![B-732-Dry-Pilot](/images/stories/data_sheet/water_system/reliable/special%20Hazard/single%20interlock/B-732-Dry-Pilot.jpg)