Homogenizer pressure gauges are used in applications in the pharmaceutical, biotechnology and food and beverage industries. They use a diaphragm measuring system to measure pressure. For most hygienic purposes, pressure gauges are usually suitable with an aperture. However, there are high pressure diaphragm pressure gauges for applications that require certain standards or additional safety precautions. This article focuses on high pressure diaphragm pressure gauges for sanitary applications.
Diaphragm pressure gauge
The diaphragm elements of the corrugated membrane are circular. They are either closed at their edge between two flanges or welded. They are then pressurized by a fluid that acts on one side. This causes a deflection in the membrane, which is amplified by the gears and attached to the indicator on the gauge to show pressure. Homogenizer pressure gauges use a welded diaphragm element. These welded diaphragm pressure gauges have several advantages over pressure gaugesThey have a standard. Measurements with a homogenizer pressure gauge are known as dry gauges, meaning that a liquid or gas diaphragm is measured and the pressure gauge parts are separated. This protects both the pressure gauge and the system fluids or gases from contamination. These pressure gauges provide continuous and reliable measurement even in critical operations due to the strength of the diaphragm element and excessive safety. Compared to standard pressure gauges, homogeneity pressure gauges are less prone to unpredictable process conditions (pressure peaks, overloads) and mechanical effects.
Liquid or process gas contamination can have serious human and financial consequences for applications in the pharmaceutical, biotechnology, and food and beverage industries. Accumulation of single particles can change the desired dose of a product due to contamination in some areas. Therefore, the performance of the pressure gauge used in the processes must comply with strict hygiene standards and anti-pollution measures at every level. Pressure gauges with a flash diaphragm element (material D in the figure below) all eliminate contamination because they work without liquid. Their strong diaphragm element transmits pressure to the motion through a direct bond. In a homogeneous pressure gauge, the thickness of this diaphragm is two to five times the thickness of a normal seal diaphragm. See Diaphragm Pressure Gauge for more information.
Figure 2: Pressure input pressure gauge
At the entry point the pressure becomes (H). Pressure is created in the pressure chamber (G), which causes the diaphragm (D) to move, which sits between the lower (F) and upper (E) diaphragm chambers. The diaphragm is connected to motion (B) through a link (C). Diaphragm displacement is transmitted to the pressure gauge on the indicator (A)
Some homogenizer pressure gauges are equipped with secondary safety equipment. The gauge is equipped with a second protective barrier and a monitoring element for the diaphragm. If the diaphragm is broken, the process environment and the measuring instrument are separated. This environment can not escape to the environment and nothing polluting can enter the process.
Observance of health principles
In addition to pollution, cleanliness is another important component of a homogenizer pressure gauge. These special pressure gauges can be associated with one or more of the following:
- EHEDG Compliance : EHEDG is an industrial consortium representing equipment manufacturers, food manufacturers, research institutes and public health officials. Founded in 1989 to promote hygiene during food processing and packaging.
- CIP / SIP cleaning : In many industries that require frequent cleaning or sterilization of equipment, such as pharmaceuticals and food and beverages, integrated on-site clean solutions (CIP) and sterile on-site (SIP) play a central role.
- Autoclave capability : Medical autoclaves are used to disinfect equipment. If your sphygmomanometer is considered an autoclave, it is suitable for use in an autoclave.
- FDA Approval : The FDA (“Food and Drug Administration”) is an American authority under the Department of Health. It oversees food and medicine and protects public health in the United States.
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