Diaphragm seal with flange connection

for pressure gaugesprocesschemical

Level, flow, pressure, interface, density Extreme hot and cold temperatures Corrosive, clogging, or viscous processes Hygienic requirements High-tech industries such as chemical, oil and gas, pulp and paper, food and beverage put their measuring devices to the test. Manufacturing processes require pressure sensors with high accuracy and reliability. The reduction of manufacturing costs requires avoiding rejects and production stoppages. The obsolescence of some measuring devices requires finding replacement instruments that can fit in place. When your need is specific and no conventional equipment fits the particularities of your installation, we build a custom seal sensor. Seals are used with differential, gauge or absolute pressure sensors. They can be mounted rigidly, directly on the sensor or with a capillary tube that connects the seal to the transmitter. The seal and the sensor are welded together without any gaskets, and then filled with an oil suitable for the application. In some chemical or hygienic applications, it is necessary to isolate the measuring instrument from the process medium pressure. The diaphragm seal serves as a protective interface between the measuring cell and the process medium. The diaphragm and the contacting parts are made of a material resistant to the process medium and welded to the base of the measuring cell. A capillary tube or a connecting sleeve provides the connection between the seal membrane and the sensor measuring cell. This space must be degassed under vacuum and then filled with a suitable oil filler and sealed.