Avery Hardoll BM850 Flow Meter for Oil are precision made, positive displacement, liquid measuring instruments that maintain the highest level of accuracy over a lifetime of operation. Simplicity of design and accuracy has resulted in the Avery-Hardoll BM Series meters to being the most preferred meters by aviation fueling operators and airlines in international markets.
BM Series bulkmeters are manufactured in three basic sizes with different ratings identified by a series number. The series numbers, sizes, flow rates, and a brief description of each series of meter are shown below.
VISCOUS PRODUCTS :
Avery Hardoll BM850 can be used on all petroleum products of all viscosities. However, there is an increase in pressure drop with more viscous fuels, which under normal circumstances will limit the maximum flow rate obtainable.
It is recommended that the pressure drop through a bulkmeter should not exceed 15 psi (1 bar), above which the load on the bearings will start to cause wear. Consequently when using products with viscosities above 100 centistokes (at operating conditions), it is necessary to reduce the maximum permitted flow rate.
As a guide, it is suggested that the pressure drop through the meter should not exceed 10 psi (0.7 bar) for continuous running at maximum speed or 15 psi (1 bar) for continuous running at half speed. The low pressure drop for the BM Series of Avery-Hardoll bulkmeters is displayed on the left.
TYPES OF BULKMETER
- Serial Number : BM850
- Pipeline Size : 6” (152 mm)
- Flow Rate : 85 to 1000 Imp. Gal., 387 to 4000 lpm, 23 to 232 M³/h
BULKMETER MAIN COMPONENTS
- The BM Series bulkmeters consist of three main assemblies: the manifold, body assembly and rotor assembly
- The higher rating of the larger meters is achieved by bolting two or three body capsules together and fitting double or triple rotor assemblies with a larger manifold to suit
- A calibrating mechanism and mechanical register are also attached to the front end cover
- The calibrating mechanism can be replaced by a front cover incorporating a pulse transmitter when required for electronic systems
