Avery-Hardoll BM Series flowmeters are precision made, positive displacement, liquid measuring instruments that maintain the higest level of accuracy over a life time 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 bulkmeter 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.
Types Of Bulkmeter
Serial Nuber : BM 250
Manifolds : 2-2 1/2 inches, 63 mm
Flowrates : 25-250 Imperial Gallons, 115-1140 liters
General Description : Single Capsul Meters
Bulkmeter Main Components
- The BM Series bulkmeter 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 calbrating 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, such as MASTER II or MASTER III registers.
Specifications
Meter Size : BM 250
Pipeline Size : 2-2 1/2 ” (50-65 mm)
Flow rate : 25 to 250 lpm. Gal, 115 to 1140 lpm, 7 to 68 M3/h
Flanges Conform to : ASA 150 FF
Flanges Material : Ductile Iron Steel
Viscous Product :
Avery-Hardoll bulkmeters can be used all petroleum product of all viscosities. However, there is an increase in pressure drop with more viscous fuels, which under normal circumstances will limit the maximum flowrate 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.