Centrifugal Pumps Design and Application 2nd ed - Val S. Lobanoff, Robert R. Ross (Butterworth-Heinemann, 1992)
Mechanical Seals 391 seal to work in an environment where the liquid in the seal chamber is near its vapor pressure. As a rule of thumb, when the stuffing box pressure is less than one-third of the vapor pressure, a seal face design with hydropads should be considered. Hydropads or lubrication recesses are Figure 17-28A. Piping plans for mechanical seals from A.P.l. Standard 610,6th Edition. (Reproduced courtesy American Petroleum Institute.)
392 Centrifugal Pumps: Design and Application an effective way of reducing the power loss of a flat sealing face by as much as 30%. The hydropad design feature is shown in Figure 17-29. In most applications this will permit the seal to operate in a very stable condition with very low leakage to the atmosphere. Leakage rates from these Figure 17-28B. Piping plans for mechanical seals from A.P. I. Standard 610,6th Edition, (Reproduced courtesy American Petroleum Institute.)
- Page 356 and 357: Shaft Design and Axial Thrust 341 b
- Page 358 and 359: Shaft Design and Axial Thrust 343 K
- Page 360 and 361: Double-Suction Single-Stage Pumps S
- Page 362 and 363: Shaft Design and Axial Thrust 347 F
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- Page 368 and 369: D (with subscript) P D P s T T (wit
- Page 370 and 371: Mechanical Seals 355 Figure 17-1. M
- Page 372 and 373: Mechanical Seats 357 Figure 17-2B.
- Page 374 and 375: Mechanical Seals 359 Figure 17-2D.
- Page 376 and 377: Mechanical Seals 361 Figure 17-4. H
- Page 378 and 379: Mechanical Seals 363 Pressure-Veloc
- Page 380 and 381: Mechanical Seals 365 The temperatur
- Page 382 and 383: Mechanical Seals 367 Figure 17-7. B
- Page 384 and 385: Mechanical Seals 369 Figure 17-9. P
- Page 386 and 387: Mechanical Seals 371 where C 3 = 53
- Page 388 and 389: Mechanical Seals 373 Classification
- Page 390 and 391: Mechanical Seals 375 Double seals m
- Page 392 and 393: Mechanical Seals 377 less than 100,
- Page 394 and 395: Mechanical Seals 379 Figure 17-19.
- Page 396 and 397: Mechanical Seals 381 Table 17-4 Tem
- Page 398 and 399: Mechanical Seals 383 Figure 17-20.
- Page 400 and 401: Mechanical Seats 385 steam, is to p
- Page 402 and 403: Mechanical Seats 38? rather than a
- Page 404 and 405: Mechanical Seals 389 Mechanical Sea
- Page 408 and 409: Mechanical Seals 393 Figure 17-29.
- Page 410 and 411: Mechanical Seals 395 The measured l
- Page 412 and 413: Mechanical Seals 39? Figure 17-34.
- Page 414 and 415: Mechanical Seals 399 Figure 17-36.
- Page 416 and 417: Mechanical Seals 401 This design is
- Page 418 and 419: Mechanical Seals 403 alignment, par
- Page 420 and 421: Mechanical Seals 405 Figure 17-42.
- Page 422 and 423: Mechanical Seals 407 Figure 17-43.
- Page 424 and 425: Mechanical Seals 409 Figure 17-46.
- Page 426 and 427: Mechanical Seals 411 Figure 17-47.
- Page 428 and 429: Mechanical Seals 413 Figure 17-51.
- Page 430 and 431: Mechanical Seals 415 Figure 17-53.
- Page 432 and 433: Mechanical Seals 417 Figure 17-55.
- Page 434 and 435: Mechanical Seats 419 Figure 17-58.
- Page 436 and 437: Vibration and Noise in Pumps 421 Re
- Page 438 and 439: Vibration and Noise in Pumps 423 me
- Page 440 and 441: Vibration and Noise in Pumps 425 in
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- Page 450 and 451: Vibration and Noise in Pumps 435 pr
- Page 452 and 453: Vibration and Noise in Pumps 437 up
- Page 454 and 455: Vibration and Noise in Pumps 439 Fi
392 <strong>Centrifugal</strong> <strong>Pumps</strong>: <strong>Design</strong> <strong>and</strong> <strong>Application</strong><br />
an effective way of r<strong>ed</strong>ucing the power loss of a flat sealing face by as<br />
much as 30%. The hydropad design feature is shown in Figure 17-29. In<br />
most applications this will permit the seal to operate in a very stable condition<br />
with very low leakage to the atmosphere. Leakage rates from these<br />
Figure 17-28B. Piping plans for mechanical seals from A.P. I. St<strong>and</strong>ard 610,6th<br />
Edition, (Reproduc<strong>ed</strong> courtesy American Petroleum Institute.)
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