Colfax CIG Mechanical Seal Manuel de service

1 GENERAL INSTALLATION, OPERATION, MAINTENANCE AND TROUBLESHOOTING MANUAL FOR THREE SCREW AND CIG SERIES PUMPS WARNING This manual, a

10 D.7 PIPING AND VALVES D7.1 General Piping connected to pump MUST be independently supported and not allowed to impose strains on pump casing i

11 DANGER The Imo pump is a positive displacement type. It will deliver (or attempt to deliver) flow regardless of back-pressure on unit. Failur

12 D.7.4 Suction Line Suction line should be designed so pump inlet pressure, measured at pump inlet flange, is greater than or equal to minimum re

13 D.7.5 Suction Strainer /Filter Pump life is related to liquid cleanliness. Suction strainers or filters should be installed in all systems to p

14 D.7.6 System Filtration In systems that recirculate pumped liquid, downstream (pressure and/or return side) filtration should be installed. Dow

15 NOTE: Refer to pump or pump/driver outline drawing and/or specific pump’s instruction manual for quench connection size and port locations. D.10

16 E. Startup, Operation and Shutdown CAUTION ATTENTION Operation conditions, such as speed, liquid viscosity, temperature, inlet pressure, di

17 E.4 PROTECTIVE DEVICES E.4.1 General Automatic shutdowns, emergency switches, and similar controls should be part of pumping system. They are

18 E.7 QUENCHED SHAFT SEALS When quenching fluid is hot water or steam, apply to seal at least 30 minutes prior to pump start-up to insure seal are

19 SEAL CHAMBER PRIMING: Fill mechanical seal chamber with liquid to insure seal does not start dry. This can be done by removing seal vent set-scre

2 Note: This page was added because of the prevalence of seal damage and leakage caused by not venting the seal chamber before putting a pump in ser

20 E.11 SHAFT PACKING (STUFFING BOX) LEAKAGE Pumps with packing-type seals must be checked to insure packing gland is not too tight. Excessive glan

21 F.1 FILTERS AND STRAINERS All filter and strainer elements should be periodically checked for cleanliness and cleaned or replaced as necessary.

22 NOTE: Make sure any seal leakage is disposed of properly. WARNING Since leakage or seal failure can be expected to eventually occur, be sure i

23 H. TROUBLESHOOTING MALFUNCTION POSSIBLE CAUSE REMEDY Loss of Flow or Low Capacity System component malfunction Inspect all system components. C

24 H. TROUBLESHOOTING (Continued) MALFUNCTION POSSIBLE CAUSE REMEDY Excessive or Unusual Noise or Vibration Misalignment Check pump and driver al

25 Imo Pump 1710 Airport Road PO Box 5020 Monroe, NC USA 28111.5020 Tel: +1.704.289.6511 Toll: +1.877.853.7867 Email: c

3 READ THIS ENTIRE PAGE BEFORE PROCEEDING FOR SAFETY OF PERSONNEL AND TO PREVENT DAMAGE TO EQUIPMENT, FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS M

4 APPLICATIONS MANUAL FOR IMO PUMPS A. GENERAL Instructions found herein cover general installation, operation, maintenance and troubleshooting of

5 D.1 TOOLS Procedures described in this manual require common mechanics hand tools, dial indicators for alignment and suitable lifting devices suc

6 D.5 MOUNTING OF FOOT MOUNTED PUMPS AND DRIVERS Some pumps are shipped on baseplates without drivers. For these units, install and tighten each c

7 The objective of any aligning procedure is to align shafts (not align coupling hubs) by using methods that cancel out any surface irregularities,

8 YDial IndicatorθX1X2Dial Indicator A. Face Check (Angularity) Rotating both shafts together for one full turn, align pump and driver until shaft

9 After pump-bracket-driver is installed into system and after piping is connected to pump, shaft alignment should be re-checked and adjusted, if nec