Rapidrop Model B wet alarm valves are designed for use in wet pipe sprinkler installations in buildings not subject to freezing temperatures. This type of wet alarm valve is designed to automatically initiate electric or hydraulic alarm whenever there is a flow of water to one or more sprinklers. A variety of trim packages are available to suit the requirements of the authority having jurisdiction and a number of accessories can be supplied including straps and padlocks, pressure switches, retard chamber and water motor alarm gong. This valve must be installed vertically in the main supply to a wet pipe sprinkler system.
| Model | Sizes | Face to Face (mm) | Weight (kg) | Connection Type |
Model B | DN80/3” | 273 | 23.0 |
- ANSI 125/150 |
| DN100/4” | 225 | 23.5 | ||
| DN150/6” | 267 | 35.5 | ||
| DN200/8”** | 298 | 60.0 |
*All valves with flange connections are supplied with flat face flanges. **The PN16 drilling on the top flange of the DN200 size valve is radially off set to the drilling in the bottom flange. This is required to achieve bolt clearance of the body casting and must be taken into consideration in the design of mating flanged pipe work. |
VALVE COMPONENTS
| Description | Qty. DN80 DN100 DN150 | Qty. DN200 |
| Valve Body | 1 | 1 |
| Cover Plate Bolt | 4 | 4 |
| Cover Plate | 1 | 1 |
| Cover Plate Gasket | 1 | 1 |
| Clapper Shaft Retaining Plug | 2 | 1 |
| Clapper Shaft | 1 | 1 |
| Clapper | 1 | 1 |
| Clapper Nut | 1 | 5 |
| Clapper Bolt Lock Washer | 1 | 5 |
| Clapper Retainer | 1 | 1 |
| Clapper Gasket | 1 | 1 |
| Clapper Bolt | 4 | 5 |
| Clapper Seat Ring | 1 | 1 |
DATASHEET
