To Next Page

To Previous Page

Operating instructions B-Series

Version 2.4, En Page 37 of 81 21-10-2005

6 Mechanical shaft seal

In this section we describe the mechanical shaft seals that can be used in a pump:

•

mechanical shaft seal versions

•

circulation systems API 610/682

•

piping rinsing sealing liquid

•

cooling liquid for seal

6.1 Mechanical shaft seal without cooling B and BE

This mechanical shaft seal is not lubricated or cooled.

6.1.1 Single mechanical shaft seal with cooling

, e.g.: oil, grease, water, glycerin or antifreeze.B, B+W, B.., B..+W, TW, TW+W, T..W en T..W+W

versions.

For the lubrication and cooling of the contact surfaces, after the mechanical shaft seal a pressureless fluid

reservoir can be provided through a drill hole, see technical specifications B-Series. An example is clean

water. Make sure that the materials and elastomers are resistant to the coolant.

6.1.2 Single mechanical shaft seal without cooling

, along with rinsing of the contact surfaces of the mechanical shaft seal (sealing water) B+W version.

This mechanical shaft seal is not lubricated or cooled. The mechanical shaft seal is provided with sealing

water. Connect the sealing water according to the drawing, see technical specifications B-Series. The

sealing liquid must circulate at 1 to 2 bar overpressure with respect to the pressure in the pump housing.

6.1.3 Single mechanical shaft seal with cooling

, e.g.: oil, grease, water, glycerin or antifreeze. Along with rinsing of the contact surfaces of the

mechanical shaft seal (sealing water).B+W, B..+W, TW+W, T..W+W versions.

For the lubrication and cooling of the contact surfaces, after the mechanical shaft seal a pressureless fluid

reservoir can be placed through a drill hole, see technical specifications B-Series. An example is clean

water. Make sure that the materials and elastomers are resistant to the coolant.

This mechanical shaft seal is also provided with sealing water. Connect the sealing water according to the

drawing, see technical specifications B-Series. The sealing liquid must circulate at 1 to 2 bar overpressure

with respect to the pressure in the pump housing.

6.1.4 Double mechanical shaft seal with Back to Back setup

.B-BTW, B-BTW+W or Cartex.

This is available but may only be chosen with written permission from BBA Pompen BV. On delivery of

a pump/pump unit the standard operating instructions augmented with information about the used

mechanical shaft seal must be present. Contact the supplier if these are not present.

Extra point(s) for attention with ATEX pumps.

BBA Pumps B Series User Manual

Questions and Answers: