The WFAR water flow indicators shall be installed on system piping as designated on the drawing and/or as specified herein. Water flow indicators shall mount on any clear pipe span of the appropriate normal size, either a horizontal or vertical pipe. The indicators shall have a sensitivity in the range of 4-10 gallons per minute and a static pressure rating up to 450psi for 2"-8" (50mm thru 200mm) pipes. The indicator shall respond to water flow in the specified direction after a preset time delay that is field adjustable. The retard structure shall be a sealed mechanical pneumatic unit with visual time delay adjustment.
|
Rating Pressure:
|
Up to 450PSI (3.1MPa)
|
|
Flow Sensitivity:
|
4-10GPM (15.0-37.5L/min)
|
|
Maximum Surge:
|
18FPS (5.5m/s)
|
|
Contact Ratings:
|
Two sets of SPDT (Form C)
|
| |
10.1Amps at 125/250 VAC
|
| |
2.0Amps at 24 VDC
|
|
Enclosure Rating:
|
NEMA 4- suitable for indoor/outdoor use
|
|
Conduit Entrances:
|
Two opening for 1/2" conduit
|
| |
One open, one knock-out type
|
|
Compatible Pipe:
|
Steel water pipe, schedule 10 through 40
|
|
Service Use:
|
Automatic Sprinkler: NFPA-13
|
| |
One or Two Family Dwelling: NFPA-13D
|
| |
Residential Occupancies up to 4 stories: NFPA-13R
|
| |
National Fire Alarm Code: NFPA-72
|
|
Warranty:
|
3 Years
|
