Separating membranes
E.06.
Description
Measured pressure acts through membrane upon working liquid, that fills up the area behind membrane and trasfers the pressure onto measure mechanism of sensor or pressure gauge. Pressure transfer is performed by means of oil, that fills up the pressure gauge. In between the upper and lower flange there is a membrane, that separates in inlet of measured medium from the measure mechanism and transfers the measured pressure onto the pressure gauges filling. If not mentioned otherwise, the membranes are made of corrosion-resistant steel.
Membranes may also be produced in the following designs: leaded steel, teflonplated steel, stainless steel, sprayed with epox. polish, PTFE, Hestelloy, Monel, Nickel, Tantan, Titan, silver-plated steel. Flanges: cast-iron, leaded cast-iron, rubberized cast-iron, stainless steel, brass, rubberized steel. Separating membranes are suitable for all pressure gauges of diameters: 63, 100 and 160mm.
Application
- power-engineering
- petrochemical industry
- food industry
- farmaceutical industry
Specification
Separating membranes are used during pressure measurements in cases, where it is impermissible to let the measured substance get in contact with the measurement mechanism of the sensor or the pressure gauge. Separating membranes enable pressure measurement of chemical substances, that have corrosive effect on material of the pressure gauges measure element. Perfect sealing of the area filled with working liquid is a basic prerequisite for a reliable and trouble-free operation.
For these purposes the most suitable are separators with metal membranes, which are welded to the separator body. All used construction elements and their connection must meet requirements of vacuum tightness.
