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PCP – Progressive Cavity Pump Seal Design


The first4seals Progressing Cavity Pump (PCP) mechanical seal has been developed to incorporate proven modular designs from our highly acclaimed range of single and double mechanical seals. Designs are available to suit all major PCP manufacturers including Mono, Netzsch, Seepex, Orbit and many more.


  • Available in single or double seal options.
  • No pump modification necessary, reducing cost of conversion
  • Components are modular to standardize seal ranges.
  • Big bore flared housing maximizes cooling and lubrication, increasing seal life and prevents clogging.


Cross Section





 Bill of Materials

No Item Description
1 O Ring Viton / EPR / Chemraz / Kalrez
2 Cartridge Sleeve Stainless Steel
3 O Ring Viton / EPR / Chemraz / Kalrez
4 Springs Alloy 276
5 Rotary Face 316L Stainless Steel – Carbon / TC / SiC
6 Stationary Face Alumina Ceramic / SiC / Ch.Ox
7 O Ring Viton / EPR / Chemraz / Kalrez
8 Self Aligner Stainless Steel
9 O Ring Viton / EPR / Chemraz / Kalrez
10 Restriction Bush Carbon
11 Drive Screws Stainless Steel
12 Clamp O Ring Nitrile / Viton
13 Clamp Ring 316L Stainless Steel
14 Gland Stainless Steel

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