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GRUNDFOS DMH digital dosing pumps

Hydraulically driven diaphragm dosing pumps with external motor See more

on demand check availability

Goods cannot be purchased online. These are either oversized goods with an individual price of transport or an assortment that can only be purchased on demand. If you are interested in the goods, contact us by email [email protected]

Not sellable online

Delivery accross EU within 3-7 business days %

Brand:
Grundfos
Category:
Dosing pump
Product No.:
MAS000528

Product description

The pump of the DMH series is a versatile positive displacement diaphragm dosing pump.

The diaphragm is coupled hydraulically via a precise gear-eccenter-tapet-system to a high efficiency AC motor. The dosing capacity is adjusted by varying the stroke length at the stroke adjustment knob in the ratio 1 to 10.

The range is highly versatile, it covers a wide flow range and offers a variety of dosing head sizes, materials and accessories. Customers worldwide have enjoyed years of trouble-free operation from their DMH pumps.

The Grundfos DMH range is a series of extremely strong, robust pumps for applications requiring reliable dosing capability, such as process engineering.

The liquid end is composed of:

  • Dosing head
  • PTFE diaphragm
  • Ball valves

Other features:

  • Robust industrial pump with aluminium or cast iron enclosure
  • Easy to install and operate design
  • Long life PTFE diaphragm
  • Optimum capacity and stroke frequency graduation
  • Dosing flow variation ±1.5% (FS), linearity ±2% (FS)

Applies only to pumps with: ATEX certification
The dosing pump DMH 25x is certified according to the ATEX guideline RL 94/9/EC for non-electrical operating supplies. The motor versions EEx e and EEx de defined by Grundfos are certified by the manufacturers according to ATEX guidelines for electrical operating supplies. The motor type plate is labelled according to ATEX. The ATEX approved DMH pumps are available in a variety of configurations - some can be used for dosing combustible liquids.

Electronics features:
Applies only to pumps with control variant: AR
Etron Profi microprocessor electronics, direct attached to motor:

  • Stroke frequency adjustable from 1 stroke/min to maximum stroke frequency
  • Pulse control with multiplier and divisor
  • Analogue signal control 0/4-20 mA
  • Level control with input for two level signals.
  • Pulse, analogue and remote on/off input
  • Analogue output
  • Alarm relay output
    • Stroke output
    • Input for dosing controller and diaphragm monitoring sensor

Applies only to pumps with control variant: D3; D6

  • Automatic adjustment of stroke length via direct drive control or mA-input signal
  • For further specifications please refer to servomotor

Instructions