Depa DH40-FA - Page 10

10
DEPA
®
Air Operated Diaphragm Pumps
4.12 Downtimes ................................................................................................................................................25
4.13 Taking out of service ................................................................................................................................ 25
4.14 Wastedisposalafterexpiryoftheexpectedservicelife ............................................................................ 25
5.0 Maintenance ...........................................................................................................................................26
5.1 Inspection periods ....................................................................................................................................26
5.2 Cleaning ...................................................................................................................................................26
5.3 Dismantling and assembling ....................................................................................................................26
5.3.1 Series DL, DP, DZ, DF, DB, DH-PT/TL ......................................................................................................26
5.3.1.1 Replacement of diaphragms, valve seats and valve balls ......................................................................... 26
5.3.1.2 Replacement of elastomer components ................................................................................................. 27
5.3.1.3 Replacement of PTFE diaphragm .............................................................................................................27
5.3.1.4 Replacement of the internal control valve ................................................................................................. 29
5.3.1.5 ReplacementoftheexternalQ-valve ........................................................................................................ 30
5.3.1.6 ReplacementoftheexternalDEPAAirSavevalve(DL15/25/40) ............................................................... 30
5.3.1.7 Assembling and disassembling the pressure booster (DB series) ............................................................ 30
5.3.2 Series DH-FA/SA/SS ................................................................................................................................30
5.3.2.1 Replacement of elastomer components ................................................................................................. 30
5.3.2.2 Replacement of diaphragms, valve seats and valve balls ......................................................................... 31
5.3.2.3 Disassembly of the control block ..............................................................................................................31
5.3.2.4 Replacement of internal valve ................................................................................................................... 31
5.3.2.5 Replacement of the AirSave control valve (M-valve) ................................................................................. 32
5.4 Assembling the pump ............................................................................................................................... 32
5.4.1 Assembling new clamp bands ..................................................................................................................32
6.0 Troubleshooting .....................................................................................................................................33
7.0 Active pulsation damper .......................................................................................................................35
7.1 Principle of function ..................................................................................................................................35
7.2 Recommended installation schematic ......................................................................................................35
7.3 Pulsation damper with diaphragm breakage monitoring ........................................................................... 36
7.4 Active pulsation damper with DEPA nopped E4 compound diaphragm ....................................................36
8.0 Spare parts .............................................................................................................................................37
8.1 Spare parts storage ..................................................................................................................................37
8.2 Ordering spare parts .................................................................................................................................37
8.3 Spare parts kits ....................................................................................................................................... 37
9.0 Materials and pump coding .................................................................................................................42
9.1 Appendix“pumpweightsinkg” ................................................................................................................. 43
10.0 Category 1 and 2 equipment intended for use in potentially explosive environments .................. 43
10.1 Equipment category 1 ............................................................................................................................... 43
10.1.1 Design, housing and materials .................................................................................................................. 43
10.1.2 Usage instructions .................................................................................................................................... 43
10.1.3 Equipotential bonding ............................................................................................................................... 44
10.1.4 Vibrationdistance ..................................................................................................................................... 44
10.1.5 Equipment category 1 accessories ........................................................................................................... 44
10.1.5.1 The level control........................................................................................................................................44
10.2 Equipment category 2 (not the subject of discussion) ............................................................................... 44
10.3 Temperature information for category 1 and 2 equipment ........................................................................ 44
10.3.1 Surface temperature ................................................................................................................................. 44
10.3.2 Pumped medium temperature ..................................................................................................................44
10.3.3 Ambient temperatures ..............................................................................................................................44
10.4 Equipmentintendedforuseinpotentiallyexplosiveenvironments
Maintenance instructions for category 1 and 2 equipment ........................................................................ 45
11.0 Tightening torques .................................................................................................................................45
12.0 Information on the Declaration of No Objection if goods are returned ............................................ 52