Avery-Hardoll flowmeter are precision made, positive displacement, liquid measuring instruments that maintain accurate metering over long periods of operation. Simplicity of design and construction together with sustained accuracy has led to the widespread use of BM Series meters on aviation refueling vehicles as well as master meters for use in calibration through the world.
Liquid Control is committed to maintaining the decades long legacy of Avery-Hardoll quality and precision in aviation fueling. Inside their state of the art precision in aviation fueling. Inside their state of the art manufacturing and testing facilicy in Lake bluff, Illinois, 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 wiith minimal disturbance from surrounding conditions, such as turbelence from nearby valves, 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 subjebt to assumption. The Avery-Hardoll bulkmeter directly converts volume to rotational output with minimum scope for error and with minimal disturbance from surrounding conditions, eg. turbulence from nearby valves, bends, etc.
Specifications :
Viscous Products
Avery-Hardoll bulkmeter can be used on all petroleum product of all viscosities. However there is obviusly an increase in pressure drop with more viscous fuels which, under normal circumstances will imit the maximum flow rate obtainable.
It is recommended that the pressure drop through a bulkmeter should not exceed 15 psi (one bar), above which the load on the bearings will start to cause wear. Consequently when using products with viscosities (at operating conditions) above 100 centistokes, it is necessary to reduce the maximum permitted flowrate. AS a guide it is susgested that the pressure drop through the meter should not exceed 10 psi (0,7 bar) for continuous running at maximum speed or 15 psi (one bar) for continuous running at half speed.
Operational Specs :
Maximum working pressure : 10.5 bar (150 psi)
Test pressure : 21 bar (300 psi)
Temperature range : 28°C to 100°C
Volume per revolution :
- 2.27 litres (single capsule)
- 4.54 litres (double capsule)
- 6.82 litres (triple capsule)
Calibration :
- Calibration adjustment is provided to minimize the meter error at any selected flowrate. Adjustment is stepless, no gear changing is necessary; the calibration screw is easily accessible after breaking a sea and removing a sealing screw.
- All meter 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 odorless kerosene
– Specific gravity at 60/60°F, 15/15°C=0.8
– Viscosity at 60°F, 15°C = 2.4 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 : BM750
- Pipeline Size : 6″ (152 mm)
- Flow Rate : 30 to 300 lmp, Gal, 300 to 3000 lpm, 18 to 177 M3/h