SISTO-RSKS Swing check valve
Swing check valve


Swing check valve with flanged ends, body with or without lining, soft-seated, no dead volumes; straight-way pattern with slanted seat; with internal hinge pin and soft rubber-coated valve disc.
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Main Applications

  • Mining
  • General irrigation systems
  • Chemical industry
  • Disposal
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Technical Data

  • Nominal pressurePN 16
  • Max. nominal sizeDN 300
  • Max. allowed fluid temperature120 °C


  • Streamlined body design provides low flow resistance coefficient.
  • Short stabilisation distances
  • Valve hydraulics without dead volume ensure optimum conditions for high-purity fluids.

Material number list – SISTO-RSKS

15 products
NameNominal pressureNominal size InletWeightMaterial numberPrice
RSK-S PN16 DN0254 KilogramM133A003
RSK-S PN16 DN0254 KilogramM131A003
RSK-S PN16 DN050PN 16DN 5012 KilogramM133A006
RSK-S PN16 DN050PN 16DN 5012 KilogramM131A006
RSK-S PN16 DN065PN 16DN 6515 KilogramM133A007


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icon download-pdfDeclaration of conformity (8630.8507_EN)pdf0.194/23/2020
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icon download-pdfOperating Manual (0570.821_EN)pdf4.056/17/2020
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icon download-pdfType series booklet SISTO-RSK/-RSKS (8675.1_EN)pdf0.279/26/2020

Technical Data

  • FunctionPrevent backflow
  • Connection typeFlange
  • Casing material1877
  • Nominal pressurePN 16
  • Max. nominal sizeDN 300
  • Min. nominal sizeDN 25
  • Max. allowed fluid temperature120 °C
  • Min. allowed fluid temperature-20 °C

Sectional Drawings