Grundfos DDE 120-7 B PTFE Manual Smart Digital XL Dosing Pump
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Product Overview
The Grundfos DDE 120-7 B PTFE Manual Smart Digital XL Dosing Pump is a high-capacity digital chemical dosing pump designed for accurate and reliable chemical injection in municipal water treatment, wastewater treatment, industrial process water, cooling water and other general chemical dosing applications. With a maximum flow rate of 120 L/h and operating pressure up to 7 bar, it provides an economical solution for applications requiring precise manual chemical dosing.
As part of the Grundfos SMART Digital XL Essential range, this model uses a variable-speed stepper motor and full-stroke dosing technology to deliver smooth, continuous and accurate chemical dosing across its operating range. The B control variant is designed for straightforward manual operation, allowing the dosing rate to be adjusted from 0.1–100% using the front-mounted logarithmic adjustment knob. The durable full PTFE diaphragm, ceramic valve balls and integrated deaeration valve ensure excellent dosing accuracy, reliable priming and dependable operation, even with degassing liquids.
The compact modular design features a rotating control cube for flexible installation, while the transparent protective cover safeguards the control elements in demanding industrial environments. With its simple manual operation and energy-efficient design, the DDE series offers dependable performance for essential dosing applications.
This model features a PVC dosing head, PTFE gasket and ceramic valve balls, making it suitable for a wide range of chemical dosing applications, subject to chemical compatibility.
Applications
Frequently Asked Questions
What is the Grundfos DDE 120-7 B used for?
The DDE 120-7 B is used for simple and reliable chemical dosing in water treatment, fertigation, cooling water, process water and industrial chemical injection systems.
What is the maximum flow rate of this pump?
This model has a maximum flow rate of 120 L/h.
What pressure can the DDE 120-7 B operate up to?
The DDE 120-7 B is rated up to 10 bar maximum operating pressure.
What does the B control type mean?
The B version is the basic manual control model. It uses manual 0.1–100% capacity adjustment and does not include external stop input or output relays.
Can this pump be controlled by a water meter or external controller?
No. This B version is designed for manual fixed-rate dosing. For pulse or external control, consider the DDE AR, DDA AR or DDA FCM models.
What are the wetted materials?
This pump has a PVC dosing head, PTFE gasket and ceramic valve ball.
Does this pump include an installation kit?
No. Installation kits, tubing, suction lances and injection valves are ordered separately.
Is this pump suitable for all chemicals?
Chemical compatibility should be checked against the chemical type, concentration, temperature and site conditions before use.
Specifications
Maintenance Kits & Spare Parts
Compatible spare parts for this pump
Contact us for spare parts and maintenance kits.
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What Our Customers Say
"Incredible dosing and consistent results. Perfect for our irrigation needs."
Agriculture
"Simple to operate and built to last – exactly what we needed for fertigation."
Horticulture
"The team knows their stuff. Helped us choose the right dosing solution."
Water Treatment