Pressure Gauges

Standard Diaphragm Seals

DSS Series


  • High temperature: Max 240ºC
  • Diaphragm material: SS 316 standard; others are available (Hastelloy C, Titanium, Monel)
  • Wetted material: DN 0.75″ (20mm), DN 1.5″ (40mm), DN 2″ (50mm), DN 2.5″ (63mm)
  • Filling liquid: As different media, optional fluorocarbon oil, -60+120ºC, food oil, -20+60ºC


  • Provides an economical solution to protect instruments from corrosion and clogging
  • Used to isolate and protect a pressure instrument on ultra-pure or highly corrosive fluid lines
  • Can be used with liquids such as demineralized water, sulphuric acid, hydrochloric acid and caustic gases (such as corrosive air and ammonia), where such fluids will corrode metal instruments
  • Review of chemical compatibility is available upon request
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