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PROGEF Standard
Diaphragm valve DIASTAR Six
FC (Fail safe to close)
With fixed flanges PP-H JIS

The new pneumatic Diaphragm Valves of GF Piping Systems represent a revolution in terms of safety, efficiency and simplicity.

Like the hand valves the new DIASTAR also has a central union nut. This connection is non-corrosive, temperature stable and high pressure rating up to 16 bar.

Because of the doubled flow rate the energy expenditure can be reduced considerably. At the same time the flow characteristic is very linear and thus ideally suited for control applications.

Features like rotatable air connections and pre-tensioned spring-kits facilitate installation and maintenance enormously. The accessory interface allows simple integration into facility automation.

  • Material: PP-H
  • Double flow rate compared to predecessor
  • One housing nut replaces four screws
  • Rotating air connection at 90° intervals
  • Joining faces flat/serrated
  • Connecting dimension: JIS B2238/39 10K
  • Individual configuration of the valve

Technical Details

kv-value (Δp=1 bar)
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3∕4206271Measurements 167617913
1256481Measurements 167617914
1 1∕4326759Measurements 167617915
1 1∕2406960Measurements 167617916
25061181Measurements 167617917


  • easy integration of a wide range of accessories
  • rotatable air connection
  • corrosion resistant and high pressure rating
  • high efficiency due to doubled flow factor, linear valve characteristics
  • wide selection of material for best chemical resistance
  • linear control characteristic
  • suitable for slurries and abrasive media

Fields of Application:
  • Microelectronics
  • Chemical Process Industry

  • Food and Beverage
  • Life science
  • Applications with high viscosity and solid content
  • Measurement and control
  • water treatment

  • Stroke limiter / manual override

  • AS-Interface
  • self adjusting electrical feedback
  • Positioner

  • Pilot valves

  • Valve cluster with bus-communication


Diaphragm valves - A class of their own.pdfPDF2.76 MBDownload
Mounting methods for the new generation of diaphragm valves.pdfPDF348.81 KBDownload
Innovation by revolution - The new generation of diaphragm valves.pdfPDF488.96 KBDownload
Tips and Tricks - Diaphragm valves.pdfPDF3.41 MBDownload

Datasheet pneumatic Diaphragm ValvesType Six, Ten, TenPlus and Sixteen.pdfPDF751.64 KBDownload

Promoflyer - SAFETY WITH NO COMPROMISE.pdfPDF1.45 MBDownload

Instruction Manual
Pneumatic Diaphragm Valve DIASTAR.pdfPDF2.02 MBDownload

Product Catalog
Product Range - The new generation of diaphragm valves.pdfPDF3.07 MBDownload
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