Absolute pressure gauges 5. Gauges Indicating pressure gauges with an elastic measuring element are used extensively to measure pressures in technical applications because they are both robust and easy to handle. These Wika pressure gauges incorporate measuring elements which deform elastically under the influence of pressure. Wika Mechanical pressure gauges are produced with bourdon tube, diaphragm, and bellow and spring elements and are accordingly different. Wika measuring elements are made of copper alloys, alloyed steels or produced with special materials for specific measuring applications.
Pressures are only measurable in conjunction with a reference pressure.
The measured pressure is shown in standard measuring ranges on over 270 degrees on the dial. Liquid filled pressure gauges offer optimal protection against destruction by high dynamic pressure loads or vibrations as a result of their cushioning. Switching operations can be carried out when combined with alarm contacts. The pressure of the media acts on the inside of this tube which results in the oval cross section becoming almost round. Because of the curvature of the tube ring, the bourdon tube bends when tension occurs.