Grundfos DMX 115-3 FKM Mechanical Diaphragm Dosing Pump

The Grundfos DMX 115-3 FKM Mechanical Diaphragm Dosing Pump is a robust mechanically actuated diaphragm dosing pump designed for reliable and accurate chemical dosing in water treatment, wastewater treatment, industrial process water, cooling water and general chemical injection applications. With a maximum flow rate of 115 L/h and operating pressure up to 3 bar, it is ideal for continuous-duty installations requiring dependable mechanical dosing performance.

As part of the Grundfos DMX range, this model features a mechanically driven diaphragm powered by a high-efficiency AC motor through a precision gear, eccentric and tappet drive system. The dosing capacity is adjusted by varying the stroke length using the integrated adjustment knob, providing a 1:10 turndown ratio for simple and accurate flow adjustment. The long-life PTFE-coated diaphragm delivers consistent dosing accuracy and extended service life, while the robust mechanical design ensures reliable operation in demanding industrial environments.

The pump incorporates a chemically resistant thermoplastic housing, durable ceramic valve balls and FKM valve gaskets with PTFE valve seats for dependable performance across a wide range of compatible chemicals. Its simple installation, low-maintenance design and continuous-duty operation make it well suited for industrial dosing systems where reliability is a priority.

This model features a PVC dosing head, FKM seals and ceramic valve balls, making it suitable for a wide range of chemical dosing applications, subject to chemical compatibility.