Flow Meter Avery Hardoll CM 2000 , CM 2500
CM SERIES METERS
Avery-Hardoll bulkmeters are precision made, positive displacement, liquid measuring instruments,which maintain accurate metering over long periods of operation. Simplicity of design and construction together with sustained accuracy make these meters ideally suited for use on aviation refuelling vehicles and in oil terminals.
The positive displacement principle is the ONLY accurate method of measuring fluid flow. No other technology can achieve such accuracy because measurement becomes inferred, that is indirect and subject 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.
The product enters the meter through the inlet manifold (1) and causes the rotor (4) to revolve by pressure on the vanes (3).
The proximity of the rotor (4) to the body (2) forms an efficient seal, whilst the profile of the casing ensures that the vanes (3) are guided through the measuring crescent (5), where the volume of product is accurately measured.
An extension shaft driving through a pressure tight gland in the meter front cover, transmits the rotor revolutions to the calibrating gearing 6) which drives the counter (7).
MANIFOLD: Ductile iron (single/double capsule)
Fabricated steel (all builds)
Cast Aluminium (6’’ Triple only)
Maximum Working pressure: 10.5 bar (150 psi)
Test pressure: 21 bar (300 psi)
Temperature range: -28ºC to 100ºC
Volume per revolution: 2.27 litres (Single capsule)
4.54 litres (Double capsule)
6.82 litres (Triple capsule)
9.08 litres (4 capsule)
Repeatability typically: .02%