DMH 25x
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The optimum capacity graduation between 5 and 2 × 1150 l/h makes this series of extra-rugged dosing pumps stand out. Three drive sizes as well as versions with single or double dosing head are available.

Piston diaphragm dosing pump DMH 250 models 251 / 252 / 253 / 254 / 255 / 257 series

All models are equipped with universally resistant full Teflon diaphragms as well as with the patented ALLDOS diaphragm protection system AMS and a vernier scale with a very fine graduation. A variety of options is available, e.g. electric or pneumatic actuators, frequency motor control, special dosing heads or a double diaphragm system with breakage signal.

Reliability and accuracy: the elaborate combination

  • High dosing accuracy and exact reproducibility of the dosing flow. The deviations in dosing flow constancy and linearity are below 2%.
  • High degree of functional safety by standardised diaphragm breakage system and overpressure valve.
  • The pumps can be universally employed due to the full Teflon dosing diaphragm and * Very easy adjustment of the dosing flow: the dosing flow can be adjusted accurately, even if the system is not running.

Further functions:

  • Any capacity requirement between 5 and 2 × 1150 l/h can be covered without any problems
  • Especially for applications in chemical engineering: adjustment of the dosing flow ranges by different stroke numbers
  • The number of spare parts required is essentially reduced thanks to the elaborate * Can be equipped with further quality components, as electric or pneumatic servomotor, motor frequency control, stroke frequency control, dosing head heating.
  • The pump types DMH 250 models 251 – 253 are optionally available with Etron Profi electronics and diaphragm breakage signal

Applications:

The DMH 250 models 251 / 252 / 253 / 254 / 255 / 257 pumps offer high dosing accuracy as well as modern interfaces for function monitoring and automatic control and regulation. Therefore, they are made to accomplish the demanding dosing and regulation tasks of water technology and chemical engineering industry.