Diaphragm Valves SDV Series are available as DIN- or ANSI-Valves, with handwheel for manual operation as per standard.

The sturdy design bodies are made of cast steel 1.0619 (WCB), epoxy coating RAL 5005 signal-blue or stainless steel casting 1.4408 (CF-8M), with resistant linings such as PFA or PFA-AS (conductive).

Proven PTFE/EPDM-diaphragms assure faultless closing function at any time.

Main Features

  • Heavy-duty, robust construction, maintenance-free

  • Bubble-tight shut-off throughout the full pressure and temperature range

  • Spindle protected against atmosheric corrosion

  • Force limiting device protecting diaphragm from cold flow and other deformations, high life cycle

  • Yellow sight indicator showing actual position of diaphragm

  • Easy replacement of components on site

  • Flanges acc. to DIN PN10/16 resp. ANSI 150lbs for installation into existing piping systems

Conformity according to European
Pressure Equipment Directive 97/23/EC (PED) 


  • Rubber and Fluoropolymer Linings:
  • Hard Rubber
  • Soft Natural Rubber
  • Soft Butyl Rubbe
  • Neoprene
  • Hypalon
  • Halar
  • Linatex