Figure SU10R Polyurethane


The SU10R valve offers bi-directional isolation with a field replaceable snap-in liner that completely protects the wetted area from abrasion and corrosive slurries, increasing reliability and service life.

The Clarkson SU10R valve is designed for a wide range of on/off low to medium density slurry applications such as mining and mineral processing , coal preparation plants, Chemical plants, Corrosive environments and wastewater treatment plants.

  • True bi-directional flow and shut-off, allowing it to be installed in either direction.
  • Unique one-piece, precision molded high strength polyurethane liner protects the wetted parts, from corrosion and abrasion. It is field replaceable in all sizes, no need to return to factory for repair.
  • The liner has integral flange seals eliminating the need for flange gaskets in most cases*.
  • The liner has integral O-rings to support and wipe slurry from the gate, minimizing deflection and improving packing life.
  • It can replace conventional and short pattern slurry knife gate valves. As a true pressure vessel valve the SU10R does not discharge to atmosphere when cycled.
  • Compact two piece split body construction for easy maintenance.
  • Sealing per ANSI Class V tested per MSS SP-81
  • Fully rated 316 stainless steel gate, with optional 17-4 ph to provide improved abrasion resistance against the rigors of abrasive applications.
  • Full round port and seat design offers low pressure drop across valve and longer service life in abrasive applications.
  • Designed to be a repairable asset, lower the cost of ownership.
  • Inverted self-aligning gland box allows for easier setup and longer packing life.
  • Complies with MSS SP-81 face-to-face dimensions.
  • All valves are factory pressure tested.
  • A range of actuation options from manual hand wheel, bevel gear, chain wheel to pneumatic, hydraulic, and electric actuators. Note: Patent pending
    • To ensure effective integral flange seal, pipeline flange internal diameter should not exceed schedule 40 pipe outside diameter. Slip-on flanges are suitable within this limitation.

Technical Data


Up to 145 psi


NPS 2-24


Up to +140°F





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