Verderflex Dura 7 - Page 4

4 | Page
Version 2.6v-12/2022
© Verder Liquids B.V
Dura 5 - 35 series - Operating manual
Original instructions (en)
6.6.4 Standard Port Flange Assembly (Dura 15, 25 and 35) ............................................................................18
6.6.5 Split Flange Assembly (Dura 15, 25 and 35) ...........................................................................................18
6.6.6 Dura MK III 15, 25 and 35- Hose and Flange Assembly .......................................................................... 18
6.7 Filling the Pump with Lubricant ................................................................................................................................19
6.7.1 Fitting the Inspection Window ..................................................................................................................19
6.8 Connecting the Pipes ...............................................................................................................................................19
6.8.1 Installing the Piping .................................................................................................................................. 19
7. Operation ..........................................................................................................................................................20
7.1 Pre-commissioning the Pump ..................................................................................................................................20
7.1.1 Checking the Direction of Rotation with Dry Pump ..................................................................................20
7.1.2 Starting the Pump ....................................................................................................................................20
7.1.3 Switching OFF the Pump .........................................................................................................................20
7.2 Commissioning the Pump ........................................................................................................................................21
7.2.1 Switching ON the Pump ........................................................................................................................... 21
7.2.2 Switching OFF the Pump (Refer to g 7.1.3) ...........................................................................................21
7.3 Shutting Down the Pump .........................................................................................................................................21
7.4 Start-up Following a Shutdown Period ..................................................................................................................... 21
7.5 Operating the Stand-by Pump..................................................................................................................................21
8. Inspection, Maintenance and Repair ..............................................................................................................22
8.1 Inspection ................................................................................................................................................................. 22
8.2 Maintenance.............................................................................................................................................................22
8.2.1 Cleaning the Pump ..................................................................................................................................22
8.2.2 Cleaning Protocol for Hoses ....................................................................................................................22
8.2.3 Maintenance Schedule ............................................................................................................................24
8.3 Repair .......................................................................................................................................................................25
8.3.1 Preparations for Dismounting ..................................................................................................................25
8.3.2 Returning the Pump to the Manufacturer ................................................................................................. 25
8.3.3 Rebuild/Repair .........................................................................................................................................25
8.4 Hose Change ...........................................................................................................................................................26
8.4.1 Dismounting the Hose..............................................................................................................................26
8.4.2 Re-installing the Hose, Port Flanges, Lubricant Rell and Fitting the Inspection Window.......................26
8.5 Ordering Spare Parts ...............................................................................................................................................26
9. Troubleshooting .............................................................................................................................................. 27
9.1 Pump malfunctions...................................................................................................................................................27
10. Listoftables&gures ....................................................................................................................................30
11. TechnicalSpecications ................................................................................................................................. 31
11.1 Pump Specications.................................................................................................................................................31
11.2 Standard Operating Conditions ................................................................................................................................ 31
11.3 Tightening Torques ................................................................................................................................................... 31
11.4 Preservatives ...........................................................................................................................................................31
11.5 Cleaning Agents (after hose is removed) .................................................................................................................31
11.6 Lubricants .................................................................................................................................................................31
11.7 Rotor Options ...........................................................................................................................................................31
12. Trademarks ....................................................................................................................................................... 32
13. Document history .............................................................................................................................................32