Grundfos DMH 251-B Hydraulic Piston Diaphragm Dosing Pump 3 Phase with External Motor
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)
Suitable for:
- Industrial heating
- Desalination
- Industrial water supply & transfer
- Industrial wastewater treatment & reuse
- Drinking water treatment
- Wastewater treatment
- Fertigation & Chemigation