Page 633 - Subyek Teknik Mesin - Forsthoffers Best Practice Handbook for Rotating Machinery by William E Forsthoffer

Index
Dry gas seal (DGS) system (Continued)

monitoring and protection of, 517, 522e523

separation systems, 516, 520, 524

tandem dry gas seal, 515f, 519f

tandem seals, 509f

with interstage labyrinth, 510, 511f

with interstage labyrinth-nitrogen supply, 512f

for saturated gas applications, 510, 510f

types, 507

high pressure applications, 508

low/medium pressure applications, 507e508

tandem seals, 508e510

toxic and/or flammable gas applications, 508

vent systems between the DGS cartridge and separation seal, 514, 519e520

Dry gas seal design

applications of

high pressure, 204

low/medium pressure, 203e204

tandem seals for, 204e206, 204e206f

leakage rates, 203, 203f

principles of operation, 201e202, 201f, 202f

ranges of operation, 202

Dry twin screw compressors, 130f,136f. See also Screw compressors

Dual gland condenser systems, 283

Dual motor-driven positive displacement pump system with a rundown tank, 379, 379f

Dual un-pressurized vs. dual pressurized seals, 473e474, 474f,476e477, 477f.See also Seals

606