Main applications

  • Boiler feed systems
  • Building services
  • Fire fighting and sprinkler systems
  • Groundwaterlevel (mining/buildings)
  • Irrigation
  • Lake, Damwater extraction
  • Passenger ships and ferries
  • Pressure boosting, fire fighting systems
  • Rainwater utilization
  • Sea -& Riverwater Extraction
  • Swimming pools
  • Systems
  • Water
  • Water Extraction
  • Water supply
  • Water transport
  • Water works
  • Watertransport
  • Well

Technical data

T max 90 °C
DN max 80
PN max 16


Diaphragm valve to DIN/EN with gunmetal body and threaded sockets for drinking water installations in building services to DIN 1988, DIN-DVGW-approved for water acc. to test W 270, in compliance with KTW recommendations (use of elastomers in drinking water applications); shut-off and sealing to atmosphere by completely enclosed diaphragm; position indicator with integrated stem protection. All moving parts are separated from the fluid by the diaphragm. Maintenance-free.


Drinking water, particularly drinking water installations to DIN 1988, seawater, all service water qualities.

Further technical information about SISTO-16RGA

Overview of technical data

T -10 – 90 (°C)
DN 15 – 80
PN 16
Actuator options available ex works No
Body design Straight pattern body
Bonnet design Bonnet
No dead volume" design Yes
Dimension standard NACH BAUREIHENHEFT 8638.1
Handwheel movememt Rising
Valve disc/plug material Soft seat
Threaded-end design Threaded-end design, Internal thread
Body material (EN standard) CC499K-GS
eClass assignment 37010206, 37010201
Main applications Water, Building services, Oil / Gas, Industry and process engineering
Body material Bronze, Red-bronze
Body/bonnet seal element Supported and enclosed diaphragm