The ZHA KL gear flow meters series (aluminum design) are flow meters primarily used for lubricants. They are also suitable for higher to low viscosity media. Only high-quality aluminum is used in the manufacture of the gear flowmeters. Combined with the use of high-quality precision ball bearings, the ZHA KL guarantees optimum measuring accuracy and a long service life even under the toughest application conditions. The ball bearings ensure a very low starting torque of the measuring element. Thus, even the lowest flow rates at low viscosities can be accurately measured.
Measuring Ranges0.1 up to 7.0 l/min
Measuring Accuracyup to ±0.1 %
Repeatability±0.05 % (under the same conditions)
Linearity±0.5 % of actual flow (viscosity ≥ 30 mm²/s)
Materials
- Housing: as per DIN 3.4365 [EN AW 7075].
- Gears: shaft per DIN 1.4122
- Bearing: Stainless steel ball bearing
- Seals: FKM, PTFE
Pressureup to 420 bar [6,000 psi]
Medium Temperature-40 °C up to +150 °C [-40 °F up to +302 °F] (others on request)





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