OBL X9 Series - Page 3

Operating manual X9 Series metering pumps
File: UT-4336 – Rev.0 Copyright © - OBL Metering pumps - All rights reserved Page 3
GB
6.3.2 Pulsation dampener ........................................................................................................................ 20
6.3.3 Pressure gauge .............................................................................................................................. 21
6.3.4 Calibration pot ............................................................................................................................... 21
6.4 EXAMPLE OF PLANT FOR METERING PUMPS ............................................................................................. 21
6.5 ELECTRIC MOTOR INSTALLATION ............................................................................................................ 22
6.5.1 Flexible joint coupling ..................................................................................................................... 22
6.5.2 Check and change the direction of rotation ....................................................................................... 22
6.6 DESIGN DATA CHECK .............................................................................................................................. 22
6.6.1 Environmental conditions ................................................................................................................ 22
6.6.2 Installation conditions ..................................................................................................................... 22
6.7 START-UP .............................................................................................................................................. 22
6.7.1 Checks before start-up .................................................................................................................... 22
6.7.2 Checks during operation ................................................................................................................. 23
6.7.3 Abnormal conditions ....................................................................................................................... 23
6.7.4 Prolonged stops ............................................................................................................................. 23
7. ROUTINE MAINTENANCE ......................................................................................................................... 23
7.1 OPERATING PRECAUTIONS ..................................................................................................................... 23
7.2 CONSULTING TECHNICAL DOCUMENTATION ............................................................................................ 24
7.3 PERIODIC OPERATIONS .......................................................................................................................... 24
7.3.1 Checks of normal operation ............................................................................................................. 24
7.3.2 Checks of electrical connections ....................................................................................................... 24
7.3.3 Checks of pump connection to plant pipeline .................................................................................... 24
7.3.4 General and surface cleaning........................................................................................................... 24
7.3.5 Protection against corrosion ............................................................................................................ 24
7.3.6 Verification of thermal protections ................................................................................................... 25
7.3.7 Painting check (if foreseen) ............................................................................................................. 25
7.3.8 Lubricant oil check.......................................................................................................................... 25
7.3.9 Hydraulic oil system check .............................................................................................................. 25
7.4 RECOMMENDED SPARE PARTS ................................................................................................................. 25
7.4.1 Pumps with PLASTIC material pumphead ......................................................................................... 25
7.4.2 Pumps with METALLIC material pumphead ....................................................................................... 25
7.5 DISMANTLING, REPLACEMENT AND REASSEMBLY ..................................................................................... 25
7.5.1 Personnel qualifications - Customer service ....................................................................................... 26
7.5.2 Disconnecting electrical connections................................................................................................. 26
7.6 VALVE VERIFY AND/OR REPLACEMENT ..................................................................................................... 26
7.6.1 Pumps type LY, LYH ....................................................................................................................... 26
7.6.2 Pumps type LK, LN, LP .................................................................................................................... 27
7.7 LUBRICANT OIL CHANGE ......................................................................................................................... 27
8. SPECIAL MAINTENANCE .......................................................................................................................... 28
8.1 TECHNICAL DOCUMENTATION................................................................................................................. 28
8.2 HYDRAULIC SYSTEM MAINTENANCE ........................................................................................................ 28
8.2.1 Hydraulic oil system change ............................................................................................................ 29
8.2.2 Diaphragm rupture signaling ........................................................................................................... 29
8.2.3 Diaphragm condition check ............................................................................................................. 29
8.2.4 Diaphragm replacement .................................................................................................................. 29
8.2.5 Hydraulic system oil filling ............................................................................................................... 31
8.2.6 Pumphead tightening torque values ................................................................................................. 33
8.2.7 Pumps with plastic material pumphead: Recommendations ................................................................ 33
8.3 DIAPHRAGM RUPTURE DETECTOR RESETTING ......................................................................................... 34
8.4 PUMPS TYPE LN, LP: KNOB ADJUSTMENT FRICTION SETTING ................................................................... 34
8.4.1 Increase the adjustment friction ...................................................................................................... 34
8.4.2 Reduce the adjustment friction ........................................................................................................ 34
8.5 BEARINGS REPLACEMENT ....................................................................................................................... 35
8.5.1 Reassembling................................................................................................................................. 35
8.6 CHANGE OF INTERNAL SAFETY VALVE SET PRESSURE .............................................................................. 35
9. OTHER INFORMATION ............................................................................................................................. 36
9.1 FAULTS AND OPERATING PROBLEMS ....................................................................................................... 36
9.1.1 Flowrate lower than expected .......................................................................................................... 36
9.1.2 Flow rate irregular or higher than expected ...................................................................................... 36
9.1.3 Overheating of pump body and/or motor .......................................................................................... 36
9.2 DISCONNECTION FROM THE PLANT AND SENDING TO OBL FOR MAINTENANCE ......................................... 36
9.3 STORAGE FOR LONG PERIODS ................................................................................................................ 36
9.4 DISPOSAL AND DEMOLITION................................................................................................................... 36
10. MANDATORY INSTRUCTION FOR RETURNING GOOD IN OBL ............................................................... 37