{"id":6017,"date":"2018-03-28T07:30:28","date_gmt":"2018-03-28T06:30:28","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=6017"},"modified":"2018-03-27T10:30:53","modified_gmt":"2018-03-27T09:30:53","slug":"explosion-proof-variable-speed-valve-actuators","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/","title":{"rendered":"Explosion-proof variable speed valve actuators"},"content":{"rendered":"<p>Electric actuator manufacturer <span class=\"highlight highlight-blue\"><a href=\"http:\/\/www.auma.com\" target=\"_blank\" rel=\"noopener\">AUMA<\/a><\/span> has launched explosion-proof variable speed valve actuators for use in potentially hazardous environment.<\/p>\n<p>The new SAVEx actuators for open-close duty and SARVEx multi-turn actuators for modulating duty, combined with intelligent ACVEx actuator controls, provide full control of the motor speed at any time.<\/p>\n<p>Variable speed offers significant advantages for challenging valve control tasks, since it allows the optimum operating speed to be selected for each change of valve position.<br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-7565662001938327\" data-ad-slot=\"7585079586\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><br \/>\nHigh positioning accuracy and optimised setpoint control considerably increase the effectiveness of pressure control valves in gas pipelines, for example.<\/p>\n<p>On multiport valves, variable speed valve actuators aid rapid and accurate switch-over between ports.<\/p>\n<p><strong>Mechanical stresses<\/strong><\/p>\n<p>Mechanical stresses on valve, actuator and pipeline are minimised by reducing the operating speed close to the end positions, allowing the moving element of the valve to make gentle contact with the seat.<\/p>\n<p>Pressure surges and cavitation effects in the pipeline can be avoided by using speed profiles.<\/p>\n<p>When working in modulating duty, the actuator speed can be set to reduce progressively as the valve position approaches the setpoint, giving a significant increase in positioning accuracy.<\/p>\n<p>Actuator speed can also be controlled by an external signal \u2013 either 4\u201320 mA analog or 0\u2013100 % digital \u2013 to take full advantage of additional control variables or algorithms.<\/p>\n<p>A further option is speed synchronisation between two actuators.<\/p>\n<p>AUMA\u2019s new explosion-proof SAVEx and SARVEx actuators complement the weatherproof SAV and SARV type range.<\/p>\n<p>They are available in six sizes covering torques up to 1,000Nm. Speed ranges include 6\u201360rpm, 12\u2013108rpm and 24\u2013116rpm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Electric actuator manufacturer AUMA has launched explosion-proof variable speed valve actuators for use in potentially hazardous environment. The new SAVEx actuators for open-close duty and SARVEx multi-turn actuators for modulating duty, combined with intelligent ACVEx actuator controls, provide full control of the motor speed at any time. Variable speed offers significant advantages for challenging valve &hellip;<\/p>\n","protected":false},"author":1,"featured_media":6018,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6017","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-process"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Explosion-proof variable speed valve actuators - Engineer News Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Explosion-proof variable speed valve actuators - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Electric actuator manufacturer AUMA has launched explosion-proof variable speed valve actuators for use in potentially hazardous environment. The new SAVEx actuators for open-close duty and SARVEx multi-turn actuators for modulating duty, combined with intelligent ACVEx actuator controls, provide full control of the motor speed at any time. Variable speed offers significant advantages for challenging valve &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineer News Network\" \/>\n<meta property=\"article:published_time\" content=\"2018-03-28T06:30:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/03\/auma_sarvex.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"3340\" \/>\n\t<meta property=\"og:image:height\" content=\"2124\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1\"},\"headline\":\"Explosion-proof variable speed valve actuators\",\"datePublished\":\"2018-03-28T06:30:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/\"},\"wordCount\":262,\"image\":{\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/03\/auma_sarvex.jpg\",\"articleSection\":[\"Process\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/\",\"url\":\"https:\/\/www.engineernewsnetwork.com\/blog\/explosion-proof-variable-speed-valve-actuators\/\",\"name\":\"Explosion-proof variable speed valve actuators - 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