Flowserve P-200 Durametallic Instrukcja Użytkownika Pobierz pdf (Strona 8)

3.3 For dual pressurized seal (double seal) operation, supply a clean

compatiblebarrieruidtotheinletportatapressureatleast

170kPa(25psi)abovethesealchamberpressure.SeeFigure5.

Thepressureofthebarrieruidmustnotexceedtherecommended

maximumpressure.Flowservecansupplyinformationonbarrier 

uidowrequirementsbasedonsealsize,producttemperature, 

barrieruidcharacteristics,andshaftspeed.

3.4 For dual unpressurized (tandem seal) operation, supply a clean

compatiblebufferuidtotheinletportatapressurebelowtheseal

chamberpressure.SeeFigure6.Thepressureintheseal

chambermustnotexceedtherecommendedmaximumpressure. 

Flowservecansupplyinformationonbufferuidowrequirements

basedonsealsize,producttemperature,bufferuidcharacteris-

tics, and shaft speed.

3.5 TheFlowservesupplytankisdesignedtoworkwiththeP-200 

seal to form a self-contained sealing system. The circulating

featureintheP-200providesapositivebuffer/barrieruidow

fromthesealcavitytothesupplytankandbacktotheseal.

Inmostcasesthenaturalcoolingofthepipingandtankare

adequatetoremoveseal-generatedheat.Coolingcoilsare

availablewiththesupplytanktoextendoperatinglimits. 

ThesupplytankcanbeusedwiththeP-200sealinthedual

pressurized,Figure5,ordualunpressurized,Figure6, 

operating modes.

Recommendation: For enhanced seal performance and reduced

coking,useDuraClearasabarrieruid.RefertoDuraClearbrochure

FSD123orcontactaFlowservesealapplicationengineerforfurther

details.

3.6 Goodpipingpractices:     

• minimizelinelosses     

• uselargediametertubing     

• onlyupwardslopinglines     

• uselongradiusbends     

• minimizecomponentlosses    

• optimizeforthermosyphon    

• checkrotationdirection    

• testforleaks

1 2 3 4 5 6 7 8 9 10 11 12

Brak uwag

Flowserve P-200 Durametallic Instrukcja Użytkownika Strona 8