Description: Capsule pressure gauges are offered. Elastic pressure gauges indicate the relative difference between the pressure of the medium and the surrounding atmosphere. The construction is simple and robust; no additional source of energy is needed for its operation. Among the existing types of sensing/elastic elements, the most commonly used are capsule pressure gauges that are designed for measuring low/very low pressures and vacuum, The pressure medium needs to be gaseous. The capsule consists of two diaphragms joined and sealed around their circumference. Several such capsules may be combined to enable measurement of very low pressures. Normally, pressure is applied to the inside of the capsule, which changes shape as a result. By means of a link and gear movement system, this deflection is converted into rotation of a concentric pointer indicating pressure on a dial.
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