{"id":15783,"date":"2021-05-06T08:43:12","date_gmt":"2021-05-06T04:13:12","guid":{"rendered":"https:\/\/awring.co\/product\/mechanical-interlock\/"},"modified":"2026-01-06T10:18:12","modified_gmt":"2026-01-06T06:48:12","slug":"mechanical-interlock","status":"publish","type":"product","link":"https:\/\/awring.co\/en\/product\/mechanical-interlock\/","title":{"rendered":"Mechanical Interlock"},"content":{"rendered":"<h2 style=\"font-size: 20px; line-height: 1.6; margin: 20px 0;\"><strong>Product Introduction<\/strong><\/h2>\n<p>Accidents in industries refer to events that do not occur frequently, but when they do, they can result in catastrophic consequences.<br \/>\nStart-up, shutdown, switching, and other examples of industrial operations are instances where small mistakes or lack of attention can<br \/>\nlead to undesirable and irreversible outcomes.<\/p>\n<p>To prevent such incidents, our specialists have designed and manufactured a device called a <strong>mechanical interlock<\/strong>, which<br \/>\ncontrols the sequence of opening and closing material transfer valves.<br \/>\nTo open and close transfer valves, control fluid flow, and perform maintenance on transfer lines,<br \/>\nthe use of interlocks is essential to prevent unauthorized operations and<br \/>\nensure the safety of pipelines and personnel.<\/p>\n<p>In general, interlocks are used for the following purposes:<\/p>\n<ul>\n<li>Compliance with procedures<\/li>\n<li>Personnel protection<\/li>\n<li>Equipment protection<\/li>\n<li>Environmental protection<\/li>\n<\/ul>\n<h3 style=\"font-size: 18px; line-height: 1.6; margin: 16px 0;\"><strong>Interlock Function and Logic<\/strong><\/h3>\n<p>A mechanical interlock is a combination of locks and keys that keeps valves in one or two positions (open or closed).<br \/>\nThe interlock and its associated valve operate such that opening or closing the valve is only possible when both keys are inserted into the interlock.<br \/>\nIn other words, the valve in its fully closed or fully open position has only one key and remains locked.<\/p>\n<p>Using mechanical interlock systems ensures that equipment operates in a safe sequence and remains in a safe condition.<br \/>\nInterlocks not only control the sequence of opening and closing process valves but also prevent unauthorized operations.<br \/>\nDifferent types of mechanical interlock systems are designed based on the mechanism of key exchange.<br \/>\nIn this system, valves can only be operated in a predetermined sequence to ensure production, safety, and accessibility.<\/p>\n<p>Mechanical interlocks are typically installed on valves, gates, and rotary switches.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-12286\" src=\"https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/17-300x212.jpg\" alt=\"\" width=\"300\" height=\"212\" srcset=\"https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/17-300x212.jpg 300w, https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/17-600x424.jpg 600w, https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/17.jpg 651w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h2 style=\"font-size: 20px; line-height: 1.6; margin: 20px 0;\"><strong>Technical Specifications<\/strong><\/h2>\n<table width=\"523\">\n<tbody>\n<tr class=\"awring-row\">\n<td width=\"50\"><strong>Legend<\/strong><\/td>\n<td width=\"113\"><strong>Full-Rotation Lock<\/strong><\/td>\n<td width=\"112\"><strong>Quarter-Turn Lock<\/strong><\/td>\n<td width=\"248\"><strong>Material<\/strong><\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>Hand Wheel<\/td>\n<td>Sliding Lever<\/td>\n<td>Carbon Steel (Coated) \/ Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Body<\/td>\n<td>Body<\/td>\n<td>Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Linear Key<\/td>\n<td>Linear Key<\/td>\n<td>Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Key Slots<\/td>\n<td>Key Slots<\/td>\n<td>Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Connection Means<\/td>\n<td>Connection Means<\/td>\n<td>Carbon Steel (Coated) \/ Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>Adaptor<\/td>\n<td>Adaptor<\/td>\n<td>Carbon Steel (Coated) \/ Stainless Steel<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Bracket<\/td>\n<td>Bracket<\/td>\n<td>Carbon Steel (Coated) \/ Stainless Steel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" class=\"alignnone wp-image-12262\" src=\"https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/12-300x145.jpg\" alt=\"\" width=\"329\" height=\"159\" srcset=\"https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/12-300x145.jpg 300w, https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/12-600x290.jpg 600w, https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/12-768x372.jpg 768w, https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/12-800x387.jpg 800w, https:\/\/awring.co\/wp-content\/uploads\/2021\/05\/12.jpg 868w\" sizes=\"(max-width: 329px) 100vw, 329px\" \/><\/p>\n<table>\n<tbody>\n<tr class=\"awring-row\">\n<td width=\"343\"><strong>Features<\/strong><\/td>\n<td width=\"200\"><strong>Keys<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Permanently Mounted on Valve<\/td>\n<td>Linear Keys<\/td>\n<\/tr>\n<tr>\n<td>Suitable for All Hand Wheel Operated Applications.<\/td>\n<td>Uniquely Coded<\/td>\n<\/tr>\n<tr>\n<td>No Grease or Other Lubrication Required<\/td>\n<td rowspan=\"3\">Key Codes are Registered, for Easy Replacement and to Avoid use of Duplicate Keys<\/td>\n<\/tr>\n<tr>\n<td>Entrance Protection of Key Slots by Self-Sealing Weather Strips<\/td>\n<\/tr>\n<tr>\n<td>Single or Double Key Versions are Available.<\/td>\n<\/tr>\n<tr>\n<td><strong>Mounting<\/strong><\/td>\n<td>Spare Keys Available<\/td>\n<\/tr>\n<tr>\n<td>No Alterations to Host Valve Required<\/td>\n<td>Master Keys Available<\/td>\n<\/tr>\n<tr>\n<td>Custom Made Bracket and Adaptor for Mounting to the Valve<\/td>\n<td>Colored Tag Marks<\/td>\n<\/tr>\n<tr>\n<td>Original Nut is used if Possible<\/td>\n<td>Master Key &amp; Master Key Cabinet<\/td>\n<\/tr>\n<tr>\n<td>Can be Mounted in a Live Plant<\/td>\n<td rowspan=\"2\">Keys are Inserted Linearly and the Internal Locking Mechanism Consists only of Linear Moving Components.<\/td>\n<\/tr>\n<tr>\n<td>Can be Mounted on Each Size of Valve, However to a Maximum Valve Spindle Size of 68 mm. Above That Size, a Customized Interlock is Provided.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li data-start=\"57\" data-end=\"103\">\n<p data-start=\"59\" data-end=\"103\">Used in Process Sequence Control Systems<\/p>\n<\/li>\n<li data-start=\"104\" data-end=\"171\">\n<p data-start=\"106\" data-end=\"171\">Applied in Refineries, Petrochemical Plants, and Power Plants<\/p>\n<\/li>\n<li data-start=\"172\" data-end=\"254\">\n<p data-start=\"174\" data-end=\"254\">Ensures Safe Operations for the Loading and Unloading of Hazardous Materials<\/p>\n<\/li>\n<li data-start=\"255\" data-end=\"312\">\n<p data-start=\"257\" data-end=\"312\">Used in Gas, Steam, and High-Pressure Process Lines<\/p>\n<\/li>\n<li data-start=\"313\" data-end=\"365\">\n<p data-start=\"315\" data-end=\"365\">Enhances Safety in Explosive Environments (EX)<\/p>\n<\/li>\n<li data-start=\"366\" data-end=\"422\" data-is-last-node=\"\">\n<p data-start=\"368\" data-end=\"422\" data-is-last-node=\"\">Integrated with Lockout and Permit to Work Systems<\/p>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":15465,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"product_brand":[],"product_cat":[491],"product_tag":[],"class_list":["post-15783","product","type-product","status-publish","has-post-thumbnail","product_cat-innovative-products","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/product\/15783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/comments?post=15783"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/media\/15465"}],"wp:attachment":[{"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/media?parent=15783"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/product_brand?post=15783"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/product_cat?post=15783"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/awring.co\/en\/wp-json\/wp\/v2\/product_tag?post=15783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}