ZHM MK Series Kem Kupper Gear Flow Meter

The ZHM MK gear flow meter (ball bearing design) are flow meters which are mainly used in lubrication and low-viscous liquids. Therefore they are used especially for the fuel consumption measurement and the dosing of low viscous 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 bearings, the ZHM MK 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 can be accurately measured.

Short response times, very dynamic performance and high measurement accuracy ensure accurate regulation and control of flow rates in demanding applications.

For applications in hazardous areas, we offer intrinsically safe sensors and amplifiers with Ex protection in accordance with ATEX, IECEx, CSA and other standards. Additional certifications such as EAC (TR-CU) are available.



  • Diesel- and fuel consumption
  • Additive dosage
  • Leakage measurement
  • Odorization
  • Laboratory and test bench applications


  • Measuring range from 0.002 l/min up to 70 l/min
  • High measuring accuracy up to ±0.1 %1)
  • Exceptional repeatability of ±0.05 %
  • Measuring range up to 1:500
  • High resolution and short response time
  • Pressure-resistant up to 420 bar [6,000 psi]
  • Robust construction and long lifetime


Technical Data

Measuring AccuracyUp to ±0.1 %4)
Repeatability±0.05 % (under the same conditions)

±1.5 % of actual flow (viscosity ≥ 5 mm²/s)

±2.5 % of actual flow (viscosity ≥ 5 mm²/s for ZHM 01/3)


Housing: as per DIN 1.4305 [AISI 303], 1.4404 [AISI 316L]

Gears: as per DIN 1.4122

Bearing: Stainless steel ball bearing

Seals: FKM, PTFE (others on request)

Medium Temperature-40 °C up to +180 °C [-40 °F up to +356 °F]
DimensionsSee dimensional drawing (page 5 of datasheet)

Technical Data – Filter Element (optional for ZHM 01/3)

Mounting positionHorizontal/vertical
Max. Pressure

Max. 200 bar [2,900 psi] (at +37 °C [+98 °F])

Max. 160 bar [2,320 psi] (at +120 °C [+248 °F])

MaterialAs per DIN 1.4401 [AISI 316]
Mesh15 μm
Pressure DropApprox. 300 mbar (at 0.5 l/min and 2 mm²/s)
Installation LengthApproxs. 80 mm/SW 19
Connection6 mm tube

Download Datasheet: ZHM MK Series Kem Kupper Gear Flow Meter

Reference : kem-kueppers.com