Avery-Hardoll flowmeters are precision made, positive displacement, liquid measuring instrument that maintain accurate and construction together with sustained accuracy has led to the widespread use of BM Series meters on aviation refuelling vehicles as well as master meters for use in calibration throughout 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 mufacturing and testing facility in Lake bluff, Illnois, Avery-Hardoll metering products 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 distrubance surrounding conditions, such as turbulance 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 fluids 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 ratational output with minimum scope for error and with minimal disturbance from surrounding conditions, eg. turbulance from nearby valves, bends, etc.
Specifications :
Viscous product :
Avery – Hardoll bulkmeters can be used on all petroleum product of all viscosities. However there is obviously an increase in pressure drop with more viscous fuels which, under normal circumstance, will limit the maximum flow rate obtainable.
It is recomended 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 centistikes, 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 0r 15 psi (one bar) for cntinuous 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 accesible after breaking a seal and removing sealing screw
- All meters are tested to 300 psi (21 bar)
- All meters re tested before dispatch at a range of flow rates, and test certificates can be supllied 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 calibarating mechanism when used with products 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 : BM950
- Pipeline Size : 3 ” (76 mm)
- Flow Rate : 30 to 300 Imp. Gal, 130 to 1370 lmp, 8 to 82 M3/h