Diaphragm seal technology: the guardian of industrial safety and efficiency
In the chemical, petroleum, pharmaceutical, and other industrial fields, the highly corrosive, high temperature, or high pressure characteristics of the medium pose severe challenges to the equipment. Traditional pressure instruments are easily corroded or blocked due to direct contact with the medium, resulting in measurement failure or even safety hazards. Diaphragm seal technology has become a key solution to this problem through innovative isolation design.
The core of the diaphragm seal system lies in its double-layer isolation structure: the diaphragm of corrosion-resistant materials (such as stainless steel and polytetrafluoroethylene) and the sealing liquid together form a pressure transmission channel, which completely isolates the medium from the sensor. This design not only protects the sensor from corrosive media such as strong acids and alkalis but also effectively copes with high viscosity and easy-to-crystallize fluids. For example, in chlor-alkali chemicals, diaphragm pressure gauges can measure wet chlorine pressure stably for a long time, avoiding the frequent replacement of traditional instruments due to material corrosion.
In addition, the modular structure of diaphragm seal technology greatly reduces maintenance costs. The diaphragm components can be replaced separately without disassembling the entire instrument, significantly reducing downtime. In the oil-refining scenario, the pressure monitoring of high-temperature oil products often causes the traditional instrument to be blocked due to the solidification of the medium, while the sealing liquid transmission mechanism of the diaphragm system can ensure the continuity and accuracy of the pressure signal.
With the upgrading of industrial automation, diaphragm sealing technology has been integrated into equipment such as intelligent pressure transmitters to achieve real-time data collection and remote monitoring. Its pressure range covers vacuum to ultra-high pressure scenarios, making it the preferred solution in the fields of chemical process control, energy safety monitoring, etc.
Post time: Mar-03-2025