Avery-Hardoll flowmeters are precision made positive displacement, liquid measuring instruments that maintain accurate metering over long preiods of opeartion. Simplicity of design and construction together with sustained accuracy has led to the widespread use of BM Series meters on aviation refuelling vehicless as well as master meters for use in calibration throughou the world.
Liquid Control is comitted to maintaining the decades long legacy of Avery-Hardoll quality and precision in aviation fueling. Inside their state of the art maufacturing and testing facility. Inside their state of the art manufacturing and testing facility in Lake Bluff, Illnois, Avery-Hardoll metering product are manufactured and vigorously 100% flow tested before being put into service.
Features :
The BM Series flowmeter directly converts volume to rotational output with minimum scope for error and with minimal disturbance from surrounding conditions, such as turbelence from nearby valves, bends, and other system conditions
- Positive displacement measurement
- 115 to 4000 LPM (30 to 1000 GPM) flow rates
- Unequalled performance in measurement
The positive displacement principle is the ONLY accurate method of measuring fluid flow. No other technology can achieve such accuracy because measurement becomes inferred, which is indirect and subject to assumption. The Avery-Hardoll bulkmeter directly converts volume to rotational output with minimum scope for error and with minimal distrubance from surrounding conditions, eg. turbulance from nearby valves, bends, etc.
Specifications
Viscous products
Avery-Hardoll bulkmeter can be used on all petroleum products of all viscosities. However there is obviously an increase in pressure drop with more viscous fuels which, under normal circumtances, will limit the maximum flow rate obtainable.
It is recommended that the pressure drop a bulkmeter should not exceed 15 psi (one bar), above which the load on the bearings will start to cause wear. Consequently when using product with viscosities (at opearting conditions) above 100 centistokes, it is necessary to reduce the maximum permitted flowrate. As a guide it is sugested that the pressure drop through the meter should not exceed 10 psi (0.7 bar) for continuous running at amximum speed or 15 psi (one bar) for continuous running at half speed.
Operational spect :
Maximum working pressure : 10.5 bar (150 psi)
Test pressure : 21 bar (300 psi)
Tempearture range : -28 °C to 100°C
Volume per revolution :
- 2.27 litres (sigle capsule)
- 4.54 litres (double capsule)
- 6.82 litres (triple capsule)
Calibration :
- Calibration adjustmen is provided to minimize the meter error at any selected flowrate. Adjustment is stepless, no gear chaniging is nescessary, the calibration screw is easily accessible after breaking a seal and removing a sealing screw
- All meters are tested to 300 psi (21 bar)
- All meters are tested before dispatch at a range of flow rates and test certificates can be supplied if requested
- The fluid used for testing is orderless kerosene
– Specific gravity at 60/60°F, 15/150°C = 0.8
– Viscosity at 60°F, 15°C = 24 centistokes - Susgested correction to be made to the calibrating mechanism when used with product with different viscosities as follows :
– Gasoline + 0.1% + means increase counter readings
– Kerosene 0.0% – means decrease counter readings
– Gas oil – 0.1%
– Fuel oil – 0.22%
Specification Product :
- Meter Series : BM850
- Pipeline Size : 6″ (152mm)
- Flow Rate : 85 to 1000 lmp, Gal, 387 to 4000 lpm, 23 to 232 M3/h