PIPING
WHAT
WHY
WHERE
PLAN
PLAN 01
Internal seal chamber Seal chamber heat removal. Custom seal chamber, most flush from pump Seal chamber venting on likely an ANSI/ASME discharge pump. Clean, moderate horizontal pumps. Reduce risk temperature fluids. of freezing/polymerizing fluid Used with single seals, in exposed Plan 11 piping rarely with dual seals.
PLAN 02
Dead-ended seal No fluid recirculation recirculation needed. needed. chamber with no flush.
PLAN 03
Circulat ion created by No external fluid recirculation recirculation Large bore/open throat seal the design of the seal needed. Solids removal from chambers. Dirty or chamber. seal chamber. contaminated fluids.
Cooling jacket seal chambers in high temperature services. Clean fluids. Top-entry mixers/agitators with dry seals. Heating jacket seal chambers in fluids that solidify at low temperatures. temperatures.
PLAN 11
Seal flush from pump discharge through orifice. Default single seal flush plan.
Seal chamber heat removal. General applications with Seal chamber venting on clean fluids. Clean, nonhorizontal pumps. Increase polymerizing fluids. seal chamber pressure and fluid vapor margin.
PLAN 13
Recirculation from seal chamber to pump suction through orifice. Standard flush plan on vertical pumps
Continuous seal chamber venting on vertical pumps. Seal chamber heat removal
PLAN 14
Seal flush from pump discharge and recirculation to pump suction with orifices. Combination of Plan 11 and Plan 13.
Continuous seal chamber Vertical pumps. Clean, nonventing on vertical pumps. polymerizing fluids at Seal chamber heat removal. moderate temperatures. Increase seal chamber pressure and fluid vapor margin.
Vertical pumps. Seal chamber pressure is greater than suction pressure. Moderate temperature fluids with moderate solids.
PLAN 21
Seal flush from pump Seal cooling. Reduce fluid High temperature service, discharge through temperature to increase fluid typically less than 177°C orifice and cooler. vapor margin. Reduce coking. (350°F). Hot water over Cooler added to Plan 11 80°C (180°F). Clean, nonflush increases heat polymerizing fluids. removal.
PLAN 23
Seal flush from internal pumping device through cooler. Standard flush plan in hot water services.
PLAN 31
Seal flush from pump Seal chamber heat removal. Dirty or contaminated discharge through Solids removal from flush and fluids, water with sand or cyclone separator. seal chamber. pipe slag. Non-polymerizing Centrifuged solids are fluids. returned to pump suction
Efficient seal cooling with low cooler duty. Increase fluid vapor margin. Improve water lubricity.
High temperature service, hot hydrocarbons. Boiler feed water and hot water over 80°C (180°F). Clean, non-polymerizing fluids.
PLAN 32
Seal flush from an external clean source.
Seal chamber heat removal. Process and solids removal from seal chamber. Increase seal chamber pressure and fluid vapor margin.
PLAN 41
Seal flush from pump Seal cooling. Solids removal High temperature service, discharge through from flush and seal chamber. typically less than 177°C cyclone separator and (350°F). Dirty or cooler. contaminated fluids, water Combination of Plan 21 with sand or pipe slag. Nonand Plan 31. polymerizing fluids.
PLAN 52
Unpressurized buffer fluid circulation through reservoir. Fluid is circulated by a pumping ring in the dual seal assembly.
Outboard seal acts as a safety backup to the primary seal. Zero to very low process emissions. No process contamination is allowed.
Dirty or contaminated fluids, paper pulp. High temperature service. Polymerizing and/or oxidizing fluids.
Used with dual unpressurized seals. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Heat transfer fluids.
PLAN 53 A
Pressurized barrier fluid Isolate process fluid. circulation through Zero process emissions reservoir. Fluid is circulated by a pumping ring in the dual seal assembly.
Used with dual pressurized seals. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Heat transfer fluids. Dirty/abrasive or polymerizing fluids. Mixers/agitators and vacuum service.
PLAN 53 B
Pressurized barrier fluid circulation with bladder accumulator. Fluid is circulated by a pumping ring in the dual seal assembly.
Isolate process fluid. Zero process emissions. Higher pressure than Plan 53A.
Used with dual pressurized seals. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Heat transfer fluids. Dirty/abrasive or polymerizing fluids.
PLAN 53 C
Pressurized barrier fluid circulation with piston accumulator. Fluid is circulated by a pumping ring in the dual seal assembly.
Isolate process fluid. Zero process emissions. Higher pressure than Plan 53A. Dynamic tracking of system pressure.
Used with dual pressurized seals. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Heat transfer fluids.
PLAN 54
Pressurized barrier fluid Isolate process fluid. Zero Used with pressurized dual circulation by external process emissions. Seal seals. High vapor pressure system. cannot induce circulation fluids, light hydrocarbons. Hazardous/toxic fluids. Heat transfer fluids. Dirty/abrasive or polymerizing fluids. Mixers/agitators.
PLAN 55
Unpressurized buffer Outboard seal acts as a safety fluid circulation by backup to the primary seal. external system. Zero to very low process emissions. No process contamination is allowed. Additional heat removal from the inner seal. Seal cannot induce circulation.
Used with unpressurized dual seals. Hazardous/toxic fluids. Fluids that may solidify in contact with atmosphere.
PLAN 62
External quench on atmospheric side of seal. Quench fluids typically steam, nitrogen, or water.
Used with single seals. Oxidizing fluids or fluids that coke, hot hydrocarbons. Crystallizing fluids or fluids that salt out. Caustic. Cold fluids less than 0°C (32°F).
Prevent solids buildup atmospheric side of seal. Prevent icing.
on
PLAN 65 A
External drain with leakage detection on atmospheric side of seal.
Safety indicator for primary seal detects failure.
May be used alone or with Plan 62 quench. Used with close clearance throttle bushing. Useful with single seals in remote locations and critical services.
PLAN 65 B
External drain with leakage detection on atmospheric side of seal
Leakage collection to detect for process leakage. Safety indicator to detect seal failure. Continuous monitoring of leakage rates to atmosphere
Use with close clearance throttle bushing. Use with non-flashing, condensing fluids. Useful with seals in remote locations and critical services
PLAN 66 A
Leakage detection on atmospheric side of seal utilizing two throttle bushings in series
Safety indicator for primary seal to detect failure. Minimize leakage from seal gland in case of seal failure.
May be used alone or with Plan 65A or Plan 65B. Used with flashing or nonflashing fluids. Useful with single seals in remote locations and critical services. Used with close clearance throttle bushings.
PLAN 66 B
Leakage detection on Safety indicator for primary atmospheric side of seal seal detects failure. utilizing a throttle bushing and orifice plug.
May be used alone or with Plan 65A or Plan 65B. Used with close clearance throttle bushing. Used with flashing or nonflashing fluids. Useful when adding atmospheric side leakage detection to an existing seal. Useful with single seals in remote locations and critical services.
PLAN 72
Unpressurized buffer Zero to very low process gas control system. emissions. Safety backup to Containment seal primary seal. support typically with nitrogen buffer gas
Used with dual unpressurized containment seals. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Clean, non-polymerizing, non-oxidizing fluids. Used in combination with Plan 75 and/or Plan 76.
PLAN 74
Pressurized barrier gas Isolate process fluid. Zero Used with dual pressurized control system. Gas seal process emissions gas seals. High vapor support typically with pressure fluids, light nitrogen barrier gas. hydrocarbons. Hazardous/toxic fluids. Services that do not tolerate liquid barrier seals. Clean, non-polymerizing fluids Moderate t emperature fluids.
PLAN 75
Drain from containment seal cavity to liquid collector and vapor recovery
Leakage collection for zero to very low process emissions. Safety indicator for primary seal.
May be used alone or with Plan 72 on containment seals. Fluids that condense at ambient temperature. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Clean, non-polymerizing, non-oxidizing fluids.
PLAN 76
Vent from containment seal cavity to vapor recovery.
Leakage collection for zero to very low process emissions. Safety indicator for primary seal.
May be used alone or with Plan 72 on containment seals. Fluids that do not condense at ambient temperature. High vapor pressure fluids, light hydrocarbons. Hazardous/toxic fluids. Clean, non-polymerizing, non-oxidizing fluids.
