Grundfos ALLDOS KM 251 User Manual

Name: Grundfos ALLDOS KM 251
Brand: Grundfos
Rating: 4 (1 reviews)

56 pages

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15.720148-V1.0

Piston Diaphragm

Dosing Pump

KM 251

Operation Manual

Please read the Operating and Servicing Manual completely and retain for future refe-

rence!

Imprint2
Table of Contents3
General6
Introduction6
Information about the Product6
Pump Types6
Pump Performance6
Accuracy7
Admission Pressure and Counterpressure / Suction Height7
Sound Pressure Level8
Degree of Protection8
Mains Voltage8
Ambient and Operating Conditions8
Dosing Medium9
Application of the Device10
Appropriate, Acceptable and Correct Usage10
Warranty10
Safety11
Identification of Safety Instructions in the Operation Manual11
Qualification and Training of Personnel11
Risks When Safety Instructions Are Not Observed11
Safety-Conscious Working11
Safety Instructions for the Operator / User12
Safety Instructions for Maintenance, Inspection and Installation Work12
Unauthorised Modification and Manufacture of Spare Parts12
Improper Operating Methods12
Safety of the System in the Event of a Failure in the Dosing System13
Transport and Intermediate Storage14
Transport14
Delivery14
Return14
Unpacking14
Intermediate Storage14
Product Description and Accessories15
General Description15
Combined Overpressure and Degassing Valve16
Diaphragm Protection System AMS16
Double Diaphragm System / Diaphragm Breakage Signal (Optional)16
Dimensional Drawing17
Weight18
Stroke Volume18
Versions18
Etron Profi Electronics (Optional)18
Dosing Heads: Materials and Additional Features18
Valves: Materials and Additional Features19
Materials20
Electronic Etron Profi Data (Optional)20
Data of Contact Manometer for MBS (Optional)21
Installation Location21
Space Required for Operation and Maintenance21
Permissible Ambient Influences21
Underground21
Installation22
Mounting22
General Information on Installation22
Approximate Values When Using Pulsation Dampers22
Installation Examples and Tips23
Tube/Pipe Lines26
General26
Connecting the Suction and Pressure Lines26
Connecting a Liquid-Heated Dosing Head (Optional)27
Electrical Connections28
Etron Profi Electronics (Optional)28
Connecting the Etron Profi Electronics28
Electrical Servomotor (Optional)28
Electronic Stroke Preset Counter (Optional)28
Electrically Heated Dosing Head (Optional)28
Diaphragm Control (Optional)29
Connecting the Power Supply Cable29
Versions Without Mains Plug29
Version with Mains Plug30
Start-Up/Shutdown31
Safety Information31
Initial Start-Up/Subsequent Start-Up31
Checks before Start-Up31
Oil Filling31
Filling the Dosing Head for the Initial Start-Up for Systems Without Dosing Medium Flooded Suction31
Start-Up/Subsequent Start-Up32
After Start-Up33
Setting the Pressure Relief Valve33
Zero Point Adjustments34
Adjusting the Zero Point for System Pressures up to 100 Bar34
Adjusting the Zero Point34
Operating the Pump35
Shutdown35
Switching Off/Uninstalling35
Cleaning35
Storage36
Disposal36
Operating the Pump37
Switching On/Off37
Switching on the Pump37
Switching off the Pump37
Operating the Pump with Etron Profi Electronics (Optional)37
Setting the Dosing Capacity37
Setting the Dosing Flow and Locking the Stroke Adjustment Button37
Electrical Servomotor (Optional)37
Electronic Stroke Preset Counter (Optional)38
Electrically Heated Dosing Head (Optional)38
Maintenance39
General Notes39
Diaphragm Breakage Control for Diaphragm Breakage Signal39
Intervals for Cleaning and Maintenance39
Checking the Oil Level40
Cleaning the Suction and Pressure Valves40
Changing the Diaphragm and Gear Oil for Dosing Head with Single Diaphragm (no MBS)42
Drain Gear Oil42
Removing the Dosing Head42
Replacing a Single Diaphragm (no MBS)42
Fitting the Dosing Head43
Filling Gear Oil43
Checking the Oil Level43
Replacing the Diaphragm for Dosing Head with Double Diaphragm44
Removing the Dosing Head44
Replace the Double Diaphragm44
Fitting the Dosing Head45
Filling the Double Diaphragm with Separating Agent45
Filling Gear Oil46
Checking the Oil Level46
Cleaning the Ball Check Valve46
10 Possible Errors48
11 Spare Parts50
12 Dosing Curves52
EC Declaration of Conformity (Translation)56

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Grundfos ALLDOS KM 251 Specifications

General

Max. Flow Rate	25 l/h
Pressure	10 bar
Diaphragm Material	PTFE
Protection Class	IP65
Power Supply	230 V, 50/60 Hz
Materials	PVDF, Stainless Steel
Housing Material	PVDF
Stroke Frequency	120 min-1

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Grundfos ALLDOS KM 251 User Manual

Table of Contents

Questions and Answers:

Grundfos ALLDOS KM 251 Specifications

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