TP0003B
BM METER
Chap 3
Page 1
SPECIFICATIONS
Chapter 3
SPECIFICATIONS
1MATERIALS
1.1 MANIFOLD: Ductile Iron (single/double capsule)
Fabricated Steel (all builds)
BODY: Ni-Resist cast iron
VANES: Carbon
ROTOR: Aluminium or Ni-Resist cast iron
OUTER COVERS: Aluminium or Ni-Resist cast iron
INNERCOVERS Ni-Resist cast iron
BEARINGS: Stainless steel
SEALS: High Nitrile or Fluorocarbon
2 REPEATABILITY
2.1 The Avery--Hardoll brand bulkmeter is repeatable typically to 0.01%. Factory tested to 0.02%.
3 PRESSURES
Maximum working pressure: 150 lbf/in
2
(10.3 bar)
Hydrostatic test pressure: 300 lbf/in
2
(20.7 bar)
Pressure drop: 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 (at operating conditions) above 100 centistrokes, it is necessary to
reduce the maximum permitted flowrate. 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.
4 OPERATING TEMPERATURES
Minimum operating temperature -28 deg C (-18.4 deg F)
Maximum operating temperature 70 deg C (158 deg F)
5 CAPACITIES
5.1 Metered volume per revolution nominal:
Single Meter 2.27 litres
Double Meter 4.54 litres
Triple Meter 6.81 litres
5.2 Calibrating mechanism grease:
10cc Min. SHELL ALBIDA RL or equivalent
or SHELL ALVANIA R1 or equivalent
6 STORAGE LIFE
6.1 When stored in cool, dry conditions storage life is limited to two years by deterioration of seals.
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