Installation; Installation Information - Grundfos DMX 24-8 Installation And Operating Instructions Manual

DMX model 226 en
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Installation

4.1 Installation Information

Picture of optimal installation:
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11
V6.0
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For easy deaeration of the pump:
12
In case of long pressure lines:
Keep the suction line as short as possible, avoid a tangled suction
line
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Always lay the suction line rising to the suction valve of the dosing
pump.
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p
For non-degassing media with viscosity similar to water, the pump can
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be mounted onto the tank (observe the admissible suction height).
Preferably flooded suction.
For dosing media which tend to sedimentation:
Install a suction line with filter (13) in a way ensuring that the suction
valve remains several centimetres a bove the botton of the tank.
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6 Overflow valve
10 Injection unit
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9
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Install a ball valve (11) with bypass line (back to the dosing tank)
immediately behind the pressure valve
Install a check-back valve (12) into the dosing line.
If necessary, use swept bends instead of elbows.
Avoid loops which cause air bubbles.
Dosing tank
Electric agitator
Extraction device
Suction pulsation damper
Dosing pump
Overflow valve
Pressure retention valve
Pulsation damper
Measuring glass
Injection unit
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