TEWA SPRAY FIRE PROTECTION TECHNOLOGY CO.,LTD Company Logo TEWA SPRAY FIRE PROTECTION TECHNOLOGY CO.,LTD
5 1

Water Flow Switch with Delay Function

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TEWA SPRAY FIRE PROTECTION TECHNOLOGY CO.,LTD
[China]

Address
xiangcheng Suzhou Jiangsu
Phone
0086-0512-18114362013
Contact name
Leo Liu

Quick Information

  • Brand Name: TEWASPRAY
  • Place of Origin: China
  • Model Number : WFAR series
  • :

Description

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


Certificates

  • CCC : Z2018081803000841

Price

  • Delivery Port : Shanghai

Packaging & Delivery

  • Packing :1peicein1box
  • Delivery Lead Time : 15dyas
  • Supply Ability : 5000pcs/month

Product Image

  • 1Water Flow Switch with Delay Function image 1
  • 2 Water Flow Switch with Delay Function image 2
  • 3 Water Flow Switch with Delay Function image 3

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