Flow Meters
A fire flow meter is a measuring device connected to the fire pump test line that reads the pump flow directly. By running the pump at and above rated flow, you can check whether its pressure-flow curve meets the specification without discharging water.
The store range covers sizes from 2½” to 12″; the measuring range extends from 100 GPM (2½”) to 4500–5000 GPM (12″) depending on size. The meter is selected to cover the pump’s rated flow.
Main Applications
- Periodic fire pump performance tests
- Commissioning and acceptance tests
- Pump test lines returning to the tank
- Jockey and main pump flow checks
Technical Data
| Use | Fire pump test line |
|---|---|
| Size and upper range | 2½” 100 · 3″ 200 · 4″ 450 · 5″ 500 GPM (product range) |
| 6″ options | 500, 750, 1000, 1250 GPM (product range) |
| 8″ options | 1500, 2000, 2500 GPM (product range) |
| 10″ options | 3000, 3500, 4000 GPM (product range) |
| 12″ options | 4500, 5000 GPM (product range) |
| Connection | By model |
| Reading | Direct flow indicator (by model) |
| Installation | Straight pipe runs at inlet and outlet (by model) |
Material Options
| Part | Flow meter |
|---|---|
| Body | By model |
| Measuring element | By model |
| Indicator | By model |
| Connection | By model |
Which material? The meter should be selected to read up to about one and a half times the pump’s rated flow so the overload point can also be tested. For accurate readings, leave the straight pipe runs stated in the datasheet before and after the meter.
Advantages
Testing Without Waste
- Test line can return to the tank
Direct Reading
- Flow without extra calculation
Wide Range
- From 100 GPM to 5000 GPM
Suited to Acceptance Tests
- Pump curve verified on site
Construction and Design Features
- Measuring body connected to the test line
- Flow-sensing element
- Flow indicator
- Inlet and outlet connections
Send the pump’s rated flow and test line size; we will select a flow meter with the right range together.
How to Choose?
- Find the pump flowTake the rated flow from the pump nameplate.
- Set the rangeSelect a meter covering one and a half times rated flow.
- Match the sizePick the meter size for the test line diameter.
- Leave straight pipeApply the datasheet straight runs before and after the meter.
Complementary Products
Why ORFA?
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Details →Get a quote for your project
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