Influx Flow Meters (FM)

Influx Flow Meters (FM)

  • FM Approved Logo Mid Grey 300.jpg
Size range 50mm - 200mm (2" - 8")
Body type Flanged / Grooved
Working pressure 16 Bar (max test pressure 30 bar)
(232 psi (max test pressure 435 psi))
Working temperature 90°C (194°F)
Material Stainless steel (main orifice carrier)
Approvals FM Approved

FM approved sprinkler system flow meter that can be installed between flanges or with grooved couplings. The unit includes integral restrictor and bleed assembly, filter and drain assembly plus spare metering glass. The preferred installation pipe layout would include the optional full bore isolating valve upstream of the meter and a control valve downstream of the meter.

Flow Rate

Pump USGPM Flowmeter and line size Flowmeter test ranges USGPM Flometer range USGPM Flowmeter range dm³/min
Inches mm min max min max min max
200 80  100 400 100  400  400  1500 
250 150 500
300 4   100   150 600 150   900   600   3400  
450 250 900
500 250 1000
750 6   150   375 1500 250   2000   1000   7500  
100 500 2000
1250 750 2500
1500 200  750 3000 750  4000  3000  15000 
2000 1000 4000