Industrial Diaphragm Valve - SISTO-16TWA

back Stop Valves

SISTO-16TWA

Diaphragm valve to DIN/EN with flanged ends, straight-way pattern, for drinking water installations to DIN 1988, DIN-DVGW-approved for water acc. to test W 270, in compliance with the latest elastomers guideline of the German Environment Agency; shut-off and sealing to atmosphere by confined and supported SISTOMaXX diaphragm; position indicator with integrated stem protection. All moving parts are separated from the fluid by the diaphragm. Maintenance-free.

Technical Data

  • Function Shut off/control flow
  • Connection type Flange
  • Design concept Drive With handwheel
  • Casing material
    • EN-GJL-250
    • GX2CRNIMO19-11-2
  • Nominal pressure PN 16
  • Max. nominal size DN 200
  • Min. nominal size DN 15
  • Max. allowed fluid temperature 90 °C
  • Min. allowed fluid temperature -10 °C

Benefits

  • eliable sealing ensured by one single sealing element (the diaphragm), which provides hermetic sealing to atmosphere and absolutely tight shut-off. The specially enclosed diaphragm ensures long service life and high operating reliability.
  • Increased functional reliability of the diaphragm thanks to balanced diaphragm suspension
  • Maintenance-free as all moving parts are separated from the fluid by the diaphragm.
  • High level of reliability as the thrust bearing minimises the closing torques required.

 

  • Optimised long-term operation as the position indicator with integrated stem protection prevents the ingress of contaminants.
  • High level of reliability as the valve hydraulics without dead volume ensure optimum conditions for high-purity fluids.
  • Long service life as the diaphragm support increases valve life and extends the pressure limit of the diaphragm.
  • Both the SISTOMaXX diaphragm material and the body material 1.4409 and coating material polyamide (Rilsan) meet the recommendations of the German Environment Agency (Elastomer Guideline) and DVGW Worksheet W270.