TABLE 1. GENERAL MAINTENANCE-REDUCTION CHECKLIST FOR ACHIEVING BUILT-IN RELIABILITY FOR CENTRIFUGAL PUMPS Description of check point no. Adequate Remark Yes No 1 Design provides the suitable materials of construction of major components, surface sealing materials and hardware to withstand the most adverse operating conditions possible in the system, including all mechanical and hydraulic forces acting upon it 2 Design provides inherent protection to components from corrosive or erosive environments to which it is, or can be, exposed as a part of the operating process 3 Design provides a correct and realistic input process condition for the equipment Design provides a correct and realistic equipment output performance within the limit of specified input condition 4 Design provides the most suitable hydraulic balancing for equipment, so as to minimize the forces acting on components 5 Design provides a specified trouble-free operating zone without affecting the desired performance and component life 6 Design provides correct and robust shaft-sealing system that can withstand the most adverse operating conditions possible in the system without failure 7 Design provides an appropriate bearing-support system to provide maximum stiffness to the rotating mass at minimum frictional loss 8 Design provides proper lubrication system that is most suitable to protect the bearings at minimum friction loss 9 Design provides the most suitable lubricant for the bearing system, considering the load and service conditions 10 Design provides for bearings and seals with wear- or failuremonitoring capability to permit scheduling of maintenance prior to actual component failure or component damage 11 Design provides suitable casing design pertinent to service conditions to provide highest built-in reliability 12 Design provides that all running clearances are minimized with applicable tolerances for thermal expansion provides monitoring facilities for crucial performance dynamic parameters of the equipment, so as to asmachine ghousing seals to avoid ingress bricating oil dequate rigidity event September 2013 Sizing Steam Traps Page 58 www.che.com Practical Solutions for Plant Management and Operations ROTARY EQUIPMENT RELIABILITY: Follow the ✓ ✓ ✓ ✓ Checklist ✓ PAGE 52 ✓ ✓ ✓ ✓ ✓ SEPTEMBER 25-26, 2013 MOODY GARDENS HOTEL GALVESTON, TX & CONVENTION CENTER www.cpievent.com THE LIVE EVENT OF CHEMICAL ENGINEERING MAGAZINE Spotlight on India: Petroleum Refi ning CPI Modular Construction Focus on Safety Equipment ✓ ChemInnovations Conference and Expo Show Preview Finned Heat Exchangers Focus on Sensors Bulk Solids Mixing Facts at Your Fingertips: PVC and CPVC plastics ✓ ✓ ✓ ✓ ✓ ✓ ✓http://www.che.com http://www.cpievent.com