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T-Tap Water Flow Detector with Time Daley Function
  • WFAR-TS Series: TEWA SPRAY
描述

TEWA SPRAY FIRE PROTECTION TECHNOLOGY CO.,LTD. The WFAR-TS T-tap water flow indicators shall be installed on a tee that has a 1 inch NPT branch include 1in.,11/4 in. ,11/2 in. and 2in. 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 1"-2" (DN25 thru DN50) 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:  Fits 1", 1-1/4",1-1/2" and 2" ferrous and brass threaded tees
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