The ZHM KL gear flow meter series (ball bearing design) are flow meters which are mainly used in lubrication and non-lubrication liquids. They are equally suitable for filled, viscous and abrasive media.

Only high-grade steels that even withstand corrosive liquids are used in the production of gear flow meters. Combined with the use of high-quality precision ball and hybrid bearings, the ZHM KL guarantees optimum measurement accuracy and a long service life under even the toughest application conditions. The ball bearing facilitates a very low starting torque of the measuring element. This way even the lowest flow rates at low viscosities can be accurately measured.

Technical Data

• Measuring Ranges: 0.02 up to 1,000 l/min
• Measuring Accuracy: up 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 1.4305 [AISI 303], 1.4404 [AISI 316L]
  • Gears: as per DIN 1.4122, 1.4501 [AISI F55]
  • Bearing: Stainless Steel Ball bearing (ZHM 01/2-06/1), Chrome roller bearing (ZHM 06-07)
  • Seals: FKM, PTFE (others on request)
• Pressure: up to 420 bar [6,000 psi]
• Medium Temperature: -40 °C up to +180 °C [-40 °F up to +356 °F] (others on request)