CSF Mechanical Seal Options CSM Series

CSF Mechanical Seal Options CSM Series

CSF Pumps are offered with the sealing options below as standard, each of which has a large and varied range of seal materials to suit every application.  All CSM /CSMX Seals are food grade or better.

Single Mechanical – Internal

  • Increased Hygiene Balanced (WH)
  • Internal Mechanical Seal with Lipseal Flush (V)


Special Sealing arrangements may also be available to best suit your application.

Standard Mechanical Seals in More Detail


Single Mechanical, Internal
Type WH – Hygiene+, Internal Balanced

Protected (sealed spring) and balanced execution with forced circulation of the liquid pumped. Suitable for viscous and dirty products, vacuum applications or those subject to differences in pressure. Easily cleaned, its therefore ideal for sanitary/pharmaceutical applications.

CSF WH Series seal sectional

CSF WH Series seal photo




Single Flushed Mechanical, Internal
Type V – with Lipseal Flush

The external liquid circulation chamber creates a protective barrier and avoids possible leakage of the internal mechanical seal into the atmosphere.  A lower cost version of the “Q” type compact flush, with wearing lipseal. As type “Q” the function of this seal is to flush the seal surfaces in order to limit the wear.

CSF V Series seal sectional

CSF V Series seal photo