HYDRANT & ACCESSORIES
Automatic Pressure Maintenance Device
| TECHNICAL SPECIFICATIONS |
|---|
| THE HD MODEL AR-1 IS PRESSURE MAINTENANCE DEVICE WHICH REGULATES AND RESTRICTS THE AIR FLOW |
| IT IS AUTOMATIC FIELD ADJUSTABLE. IT IS USED TO CONTROL THE PRESSURE IN PRE-ACTION SYSTEM OR IN DRY PILOT ACTUATED DELUGE VALVE SYSTEM |