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