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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.
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                 Rating Pressure:  | 
            
                 Up to 450PSI (3.1MPa)  | 
        
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                 Flow Sensitivity:  | 
            
                 4-10GPM (15.0-37.5L/min)  | 
        
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                 Maximum Surge:  | 
            
                 18FPS (5.5m/s)  | 
        
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                 Contact Ratings:  | 
            
                 Two sets of SPDT (Form C)  | 
        
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                 10.1Amps at 125/250 VAC  | 
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                 2.0Amps at 24 VDC  | 
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                 Enclosure Rating:  | 
            
                 NEMA 4- suitable for indoor/outdoor use  | 
        
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                 Conduit Entrances:  | 
            
                 Two opening for 1/2" conduit  | 
        
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                 One open, one knock-out type  | 
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                 Compatible Pipe:  | 
            
                 Steel water pipe, schedule 10 through 40  | 
        
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                 Service Use:  | 
            
                 Automatic Sprinkler: NFPA-13  | 
        
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                 One or Two Family Dwelling: NFPA-13D  | 
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                 Residential Occupancies up to 4 stories: NFPA-13R  | 
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                 National Fire Alarm Code: NFPA-72  | 
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                 Warranty:  | 
            
                 3 Years  | 
        
										
										
										
											| Registration Date | 2018/09/29(Year/Month/Date) | 
|---|---|
| Buyer / Seller in EC21 | Seller | 
| Business Type | Manufacturer | 
| Year established | 2018 | 
| Employees total | 11 - 50 | 
| Annual revenue | USD 500,001 - 1,000,000 | 
| Company | TEWA SPRAY FIRE PROTECTION TECHNOLOGY CO.,LTD | 
|---|---|
| Address | xiangchengSuzhouJiangsu215134China | 
| Phone | 0086 - 0512 - 18114362013 | 
| Contact | Leo Liu / Manager Director |