{"id":52165,"date":"2025-11-10T07:00:22","date_gmt":"2025-11-10T06:00:22","guid":{"rendered":"https:\/\/blog-stage.wika.cloudpowered.services\/en\/?p=52165"},"modified":"2026-02-03T11:55:10","modified_gmt":"2026-02-03T10:55:10","slug":"permanently-tight-pressure-gauges-with-fully-welded-connecting-flange","status":"publish","type":"post","link":"https:\/\/blog-stage.wika.cloudpowered.services\/en\/know-how\/permanently-tight-pressure-gauges-with-fully-welded-connecting-flange\/","title":{"rendered":"Permanently tight: Pressure gauges with fully welded connection flange"},"content":{"rendered":"

In process technology systems in which flammable, explosive or particularly high-quality media are used, one thing is paramount: safety. A key requirement for operators is the permanent leak tightness of mechanical connections \u2013 especially for pressure measuring instruments. Pressure gauges with a fully welded connection flange offer an effective solution here.<\/strong><\/p>\n

Conventional threaded connections such as G1\/2 B or 1\/2 NPT are not considered to be permanently tight in safety-critical applications. They can also come loose due to vibrations, for example, or be opened accidentally by maintenance personnel. All of this poses a considerable risk to people, the environment and the process. Potential consequences include dangerous leakages, fugitive emissions and high maintenance and downtime costs.<\/p>\n

All-round fully welded connection flanges<\/h2>\n

Pressure gauges with fully welded connection flanges are an innovative and reliable alternative for critical environments. The flange is welded directly to the socket of the pressure gauge all around, without internal seals and tested 100 percent for leak tightness. Fully welded connection flanges are also suitable for applications where the use of a diaphragm seal is not absolutely necessary – for example, for media that are not highly aggressive or if a flush diaphragm is not required.<\/p>\n\n

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WIKA pressure gauge with fully welded connecting flange<\/p><\/div>\n \n

Advantages of a fully welded flange solution<\/h2>\n

WIKA has developed a fully welded flange solution that is already being used successfully by leading industrial companies in the chemical and petrochemical, oil and gas and pharmaceutical industries. The advantages of this flange solution are manifold:<\/p>\n