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Summary of Contents for KSB 25
- Page 1 Double Mechanical Seals Back-to-back Arrangement With Seal Supply System Supplementary Operating Manual...
- Page 2 All rights reserved. The contents provided herein must neither be distributed, copied, reproduced, edited or processed for any other purpose, nor otherwise transmitted, published or made available to a third party without the manufacturer's express written consent. Subject to technical modification without prior notice. © KSB SE & Co. KGaA, Frankenthal 19/01/2018...
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Page 3: Table Of Contents
Contents Contents Supplementary Operating Manual ....................... 4 General................................ 4 Technical data.............................. 4 Removing the shaft seal........................... 4 1.3.1 Removing the shaft seal - shaft units 25/35 .................. 4 Installing the shaft seal ............................ 5 Seal supply system ............................ 6 1.5.1 Applications............................ 6 1.5.2 Connections............................ 7 1.5.3 Requirements to be met by the seal supply system................ 7 General assembly drawing with list of components .................. 9... -
Page 4: Supplementary Operating Manual
ü Dismantle the pump as described in operating manual 2753.81 or 2753.82. ü The back pull-out unit has been placed in a clean and level assembly area. 1. Take hexagon nut 920.95, disc 550.95 (shaft unit 25 only), safety device 930.95, impeller 230 and discs 550.02/.04 off shaft 210. -
Page 5: Installing The Shaft Seal
471. 12. Loosen and remove the rotating assembly of mechanical seals 433.01 and 433.02 from shaft sleeve 523. 13. Remove and dispose of gasket 400.15 (for SU 25: joint ring 411.15) and gasket 400.75. 1.4 Installing the shaft seal Installing the... -
Page 6: Seal Supply System
12. Slide spacer sleeve 525 (shaft unit 35 only) onto shaft 210. 13. Place key 940.01 in the shaft keyway. 14. Slide discs 550.02/.04, impeller 230, disc 550.95 (shaft unit 25 only) and safety device 930.95 onto the shaft. Tighten with hexagon nut 920.95. -
Page 7: Connections
1 Supplementary Operating Manual 1.5.2 Connections 901.98 550.74 UG1385256-D01_002 Fig. 2: Connections of seal supply system Table 5: Connections Connection Description Size Barrier fluid outlet G 1/4 Barrier fluid inlet G 1/4 1.5.3 Requirements to be met by the seal supply system Pipework routing When routing pipework and flexible tubing, prevent any high points or ensure that requirements... - Page 8 Barrier fluid temperature ▪ The temperature of the barrier fluid should be within the processing range of the paint (normally 25 to +30 °C). Circulation flow ▪ To prevent the formation of paint deposits in the seal supply system and to stabilise the temperature in the sealing gap, we recommend a circulation flow of 2.5 - 5 l/min per seal.
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Page 9: General Assembly Drawing With List Of Components
Circlip Seal cover Shaft sleeve Auxiliary connections Spacer sleeve Barrier fluid outlet 550.24 Disc Barrier fluid inlet Strip Only for shaft unit 25: joint ring 411.15 For shaft unit 35 only; shaft unit see data sheet. Double Mechanical Seals 9 of 12... - Page 12 KSB SE & Co. KGaA Johann-Klein-Straße 9 • 67227 Frankenthal (Germany) Tel. +49 6233 86-0 www.ksb.com...
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