Plastic diaphragm seals

Instrumentation · Pressure

Nuova Fima MGS9/P plastic diaphragm seals protect the sensing element of pressure gauges, pressure switches and electronic pressure transmitters from corrosive, viscous or sediment-laden media. An elastic PTFE diaphragm, mechanically clamped and leak-tested, separates the process medium from the transmission fluid, and the bolt-free assembly avoids corrosion points. Typical applications are electroplating, water treatment, irrigation and printed circuit board production. The body is made of PVC and two versions are available: MGS9/P10, for gauges of 100 mm and above, with G 1/2 or 1/2" NPT female process connection, and MGS9/P63, for 63 mm gauges, with G 1/4 or 1/4" NPT female connection. The maximum allowable pressure depends on the medium temperature: 10 bar at 20 °C, 5 bar at 40 °C and 1 bar at 60 °C. The standard fill is silicone oil, with fluorinated liquid or food-grade oil as options, and the additional error is ±1% for direct mounting. At Tecnovent we help you select the right seal and instrument for your application.