TAILIEUCHUNG - Mechanical Seal Piping Plans

The hydraulic system consists of an oil sump, one or two oil pumps, an air over oil accumulator tank, and piping to the servomotors. Typically, there are two pumps with lead and lag controls so that there is always a backup pump. Some systems will share two pumps between two units so that in an emergency one pump could be used for both units. The accumulator tank is usually sized so that in the event the pumps fail, the gates can still be closed. The size of the valve required to control the large amount of oil. | FLOWSERVE Mechanical Seal Piping Plans _I Single Seals plans 01 02 03 11 13 14 21 23 31 32 41 _I Dual Seals plans 52 53A 53B 53C 54 55 __ Quench Seals plans 62 65A 65B 66A 66B I_I Gas Seals plans 72 74 75 76 Experience In Motion FLOWSERVE Mechanical Seal Piping Plans Flowserve recognizes that one of the most effective ways to achieve long uninterrupted mechanical seal life is to create a healthy environment around the seal faces. Piping plans help keep mechanical seals running cool and clean promote safe handling of dangerous fluids and extend the operational availability of rotating equipment. This reference book provides a concise summary of the most essential piping plans used successfully in today s process plants. Each plan shows all the standard and optional auxiliary components referenced in ISO 21049 API Standard 682 and recommended by Flowserve. Consult your local Flowserve sales engineer to identify the right solution that satisfies your application requirements. Page Layout Seal End View Piping Plan Layout What Why and Where Viewed from drive end Illustrated schematic Describes piping plans Shows preferred gland connection orientation of auxiliary components their purpose and typical applications cooling out drair normail closed iqudTill c normally closed pressure source normally open pressure indicator low t pressure sw high level switch high What Pressurzed barrier fluid circulation through reservoir. Fluid is circulated by a pumping ring in the dual seal assemby. level indicator level switch low cooling coils cooling in Pump Cross-section Mechanical Seal Hhỵr Isolate process fluid. Zero process emissions. Where Used with dual pressurized seals double High vapor pressure fluids light hydrocarbons. Hazardous toxic fluids. Heat transfer fluids. Dirty abrasve or polymerizing fluids. Mixers agitators andvacuum service. Preventative Maintenance - Reference Appendix B Piping loop must self-veri io reservoir locale al highest elgvaliori. Press jree reservoir

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