Table Of Contents - Johnson Pump MDR Series Instruction Manual

1.0 Introduction ______________________________________________5
1.1 General ____________________________________________________5
1.2 Reception, handling and storage _______________________________5
1.2.1 Reception __________________________________________________ 5
1.2.2 Handling ___________________________________________________ 5
1.2.3 Storage ____________________________________________________ 6
1.3 Safety _____________________________________________________6
1.4 Type designation ____________________________________________7
1.5 Function and operating principle ______________________________7
1.6 General precautions _________________________________________8
1.7 Standard parts ______________________________________________8
2.0 Technical information ______________________________________9
2.1 Material specification ________________________________________9
2.2 Suction lift and liquid level ___________________________________9
2.2.1 Max suction lift (Hs) _________________________________________ 9
2.2.2 Min required liquid level _____________________________________ 9
2.3 Min back pressure __________________________________________10
2.4 Min flow required __________________________________________10
2.5 Temperature range _________________________________________10
2.6 Max temperature versus system pressure ______________________10
2.7 Viscosity and specific gravity limits____________________________11
2.8 Sound level _______________________________________________11
3.0 Capacity _________________________________________________12
3.1 MDR - 1V (full impeller diameter) ___________________________12
3.2 MDR - 1VD (reduced impeller diameter) ______________________13
4.0 Installation and maintenance _______________________________14
4.1 General ___________________________________________________14
4.2 Installation and piping ______________________________________14
4.3 Start up ___________________________________________________15
4.4 Routine control ____________________________________________15
4.5 Disassembly and assembly ___________________________________16
4.5.1 Disassembly _______________________________________________ 16
4.5.2 Assembly _________________________________________________ 16
4.6 Waste handling/material recycling ____________________________17
Index