SISTO-16RGAMaXX Diaphragm valve

Diaphragm valve SISTO-16RGAMaXX

Weir-type diaphragm valve to DIN/EN with threaded socket ends, straight-way pattern, body made of stainless steel for drinking water installations to DIN 1988, DIN-DVGW-approved for water acc. to test W 270, in compliance with the latest German Environment Agency guideline; 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.
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Main Applications

  • Pressure boosting
  • Fire-fighting systems
  • Domestic water supply
  • Air-conditioning systems

Technical Data

Nominal pressure
PN 16
Max. nominal size
DN 80
Maximum allowable fluid temperature
90 °C

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  • Reliable 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.
  • Balanced diaphragm suspension for increased functional reliability of the diaphragm
  • Maintenance-free: All functional parts are located outside the fluid.


  • S41B_30216374155-1_4
  • S41B_30216374155-4_4
  • S41B_30216374155-3_4

Technical Data

Shut off/control flow
Connection type
Internal-thread connection
Design concept Drive
With handwheel
Casing material
Nominal pressure
PN 16
Max. nominal size
DN 80
Min. nominal size
DN 15
Maximum allowable fluid temperature
90 °C
Minimum allowable fluid temperature
-10 °C

Sectional Drawings