Flanged diaphragm seals

Instrumentation · Pressure

Nuova Fima MGS9/5 flanged diaphragm seals isolate the sensing element of pressure gauges and pressure switches from process media that are corrosive, viscous, laden with sediment or at high temperature. The diaphragm is welded to the upper body, ensuring separation between the fill fluid and the process medium, and its flush position allows thorough cleaning. They are used in the chemical, petrochemical, water treatment and paper industries. They cover measuring ranges from -1…0 to 0…400 bar, depending on the flange rating, and working temperatures from -90 to +400 °C depending on the fill fluid (silicone oils, fluorinated liquid or food-grade oil). Flanges cover DN 25…100 and PN 2.5…400 to EN 1092-1, or 1"…4" class 150…2500 to ASME B16.5. The diaphragm can be AISI 316L, Monel 400 or Hastelloy C276, and a full-cover version with all wetted parts in Monel 400, Hastelloy C276 or tantalum is available. Mounting can be direct or via capillary up to 6 m, and on request they are supplied with NACE MR0103/MR0175 (ISO 15156) certification, helium test and dye penetrant test. At Tecnovent we help you choose the right flange, materials and fill fluid for your process.