SISTO-RSK Swing check valve
Swing check valve


Swing check valve to DIN/EN with flanged ends, body with or without lining, soft-seated, no dead volumes, straight-way pattern, full bore, slanted seat, static sealing to atmosphere; with soft rubber encapsulated pre-loaded valve disc featuring short travel to closure.
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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 150
  • 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-RSK

15 products
NameNominal pressureNominal size InletWeightMaterial numberPrice
RSK PN16 DN025PN 16DN 254 KilogramM132A003
RSK PN16 DN025PN 16DN 254 KilogramM130A003
RSK PN16 DN025PN 16DN 254 KilogramM130A017
RSK PN16 DN040PN 16DN 4011 KilogramM130A019
RSK PN16 DN040PN 16DN 4011 KilogramM130A005


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Declaration of conformity (8630.8507_EN)pdf0.194/23/2020
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ATEX-Declaration by the manufacturer (8630.8501_EN)pdf0.565/24/2019
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Operating Manual (0570.821_EN)pdf4.056/17/2020
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Type 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 150
  • Min. nominal sizeDN 25
  • Max. allowed fluid temperature120 °C
  • Min. allowed fluid temperature-20 °C

Sectional Drawings