Superior Sealing for Chemical and Abrasive Processing Applications

  • The Science Inside: Proprietary diaphragm technology provides exceptional sealing and complete emissions control.
  • Unmatched Experience & Innovation:  A comprehensive selection of polymers delivers superior corrosion and abrasion resistance for a wide range of demanding applications, since 1928.
  • Efficient Operation: Top Entry design enables in-line maintenance to reduce plant downtime

Available in both weir and straight through designs and with a number of lining options to suit both aggressive and abrasive line service.

Lining Chemical name Body material Size Temperature
    Cast Iron   -10 Deg C to 110 Deg C
Butyl Isobutylene Isoprene SG Iron DN20 - DN500 -10 Deg C to 110 Deg C
    Cast Steel   -30 Deg C to 110 Deg C
    Cast Iron   -10 Deg C to 105 Deg C
Neoprene Polychloroprene SG Iron DN20 - DN500 -10 Deg C to 105 Deg C
    Cast Steel   -30 Deg C to 105 Deg C
    Cast Iron   -10 Deg C to 85 Deg C
HRL Hard Natural Rubber SG Iron DN20 - DN500 -10 Deg C to 85 Deg C
    Cast Steel   -30 Deg C to 85 Deg C


Our Metal bodies provide simultaneous mechanical support for the linings and protection against Ultraviolet (UV) attack.

The nominal bore thickness of Saunders linings range from 1 to 5.5mm depending on lining material and valve size: Glass 1mm, Rubber 2 – 4.5mm, Plastic 4 – 5.5mm.


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Corrosive & abrasive duty

Designed and developed by our in-house engineering team,

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