{"id":50753,"date":"2023-07-11T13:07:11","date_gmt":"2023-07-11T11:07:11","guid":{"rendered":"https:\/\/blog.wika.com\/en\/?p=50753"},"modified":"2025-05-19T11:39:47","modified_gmt":"2025-05-19T09:39:47","slug":"pressure-switch-for-safe-operation-of-food-silos","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/en\/applications\/pressure-switch-for-safe-operation-of-food-silos\/","title":{"rendered":"Pressure switch for safe operation of food silos"},"content":{"rendered":"

Pressure switches in food silos make a significant contribution to detecting overpressure in good time and safely preventing it. A manufacturer of such elevated vessels uses the model MA mechanical pressure switch for this task. One special property tipped the scales towards this explosion-proof instrument \u2013 it is also approved for dust applications.<\/strong><\/p>\n

In addition to the overpressure, there is also a risk of explosion due to dust formation<\/h2>\n

The customer’s food silos accommodate bulk goods, primarily powdered milk, flour and sugar. Overpressure can build up during pneumatic filling, which endangers the safety of the silo and thus people and the environment. The presence of highly flammable dust can add to the risk of explosion. The risk potential is therefore large and requires appropriate measures.<\/p>\n

WIKA’s customer has therefore installed a complex safety system to protect against overpressure in its food silos. The model MA pressure switch takes on a central function: It monitors the pressure profile in the silos and shuts down the pump when the defined limit value is exceeded to stop the <\/span>filling<\/span> process.<\/span><\/p>\n

Robust pressure switch for safety-critical applications such as in food silos<\/h2>\n\n
\"The

The model MA pressure switch is also suitable for use in dust environments such as in food silos.<\/p><\/div>\n \n

The model MA pressure switch is virtually predestined for safety-critical applications such as in food silos. As a mechanical instrument, it works without auxiliary power. It is fitted with either one or two microswitches that are actuated via a explosionproof joint.<\/p>\n

The customer also selected the switch for its robustness. The casing consists of an aluminium alloy and can withstand pressures of up to 600 bar. The model MA has an IECEx or ATEX approval and is designed in accordance with the Ex d ignition protection type (flameproof enclosure). It can be used in both gas and dust environments. The switch is also available in SIL 2 and SIL 3 versions.<\/p>\n

Note<\/strong>
\nFurther technical details on the model MA pressure switch can be found on the WIKA website<\/a>. There we also present other products and solutions for the food industry<\/a>. If you have any questions, your contact<\/a> will gladly help you.<\/p>\n

Also read our posts<\/strong>
\nPressure monitoring in UHT plant without risk of contamination<\/a>
\nDiaphragm seal system with diaphragm monitoring \u2013 also digital<\/a>
\nPressure switch in hydrogen-powered train ensures safety<\/a>
\nSIL pressure switch: Safety in tyre manufacturing<\/a><\/p>\n\n

\"Women

Pressure measurement technology for the food and beverage industry<\/p><\/div>\n \n

Your free buyer\u2019s guide
\n<\/strong>Precision in the food and beverage industry: Our guide provides practical information on what to look for when selecting pressure measurement solutions. Download your free\u00a0buyer\u2019s guide \u201cPressure measurement technology for the food and beverage industry\u201d<\/a>\u00a0now.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Pressure switches in food silos make a significant contribution to detecting overpressure in good time and safely preventing it. A manufacturer of such elevated vessels uses the model MA mechanical pressure switch for this task. One special property tipped the scales towards this explosion-proof instrument \u2013 it is also approved for dust applications. In addition […]<\/p>\n","protected":false},"author":134,"featured_media":50756,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[232],"tags":[737,262,563,79,721],"class_list":["post-50753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applications","tag-foodbeverages","tag-functional-safety-sil","tag-pressure","tag-pressure-switch","tag-process-safety"],"acf":[],"yoast_head":"\nPressure switch for safe operation of food silos - WIKA blog<\/title>\n<meta name=\"description\" content=\"For safety-critical applications such as in food silos, pressure switches such as the MA type from WIKA are almost predestined.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.wika.com\/en\/applications\/pressure-switch-for-safe-operation-of-food-silos\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pressure switch for safe operation of food silos - 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