{"id":2164,"date":"2024-08-01T19:20:18","date_gmt":"2024-08-01T19:20:18","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=2164"},"modified":"2025-05-11T10:52:22","modified_gmt":"2025-05-11T10:52:22","slug":"ame-unit-11-q7","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=2164","title":{"rendered":"AME Unit 11 Q7"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"892\" height=\"331\" src=\"https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-374.png\" alt=\"\" class=\"wp-image-6212\" srcset=\"https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-374.png 892w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-374-300x111.png 300w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-374-768x285.png 768w\" sizes=\"auto, (max-width: 892px) 100vw, 892px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">(a) State the reasons for fitting a pneumatic process valve with EACH of the following:<br>(i) a volume booster;(2)<br>(ii) a feedback positioner.(2)<br>(b) State, with reasons, the type of actuator fitted to the process valves for EACH of the following systems:<br>(i) a fuel supply system in which the valve must not move on loss of power to the control system;(3)<br>(ii) a lubrication oil cooling system in which the valve diverts the oil through a cooler.(3)<\/p>\n\n\n<div class=\"wp-block-ub-content-toggle wp-block-ub-content-toggle-block\" id=\"ub-content-toggle-block-7932b330-03c5-4a76-ada9-95ecb338d0bf\" data-mobilecollapse=\"true\" data-desktopcollapse=\"true\" data-preventcollapse=\"false\" data-showonlyone=\"false\">\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-6976f88a-fc74-47a4-b6cd-640fa1bf7e9c\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-0-7932b330-03c5-4a76-ada9-95ecb338d0bf\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-7932b330-03c5-4a76-ada9-95ecb338d0bf\" style=\"color: #000000; \">Reasons for Fitting a Pneumatic Process Valve with a Volume Booster<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-0-7932b330-03c5-4a76-ada9-95ecb338d0bf\">\n\n<p class=\"wp-block-paragraph\">A volume booster is a device used to amplify the air supply to a pneumatic actuator. It&#8217;s commonly fitted to a pneumatic process valve for several reasons:<\/p>\n\n\n\n<h3 class=\" wp-block-heading\">1. <strong>Increased Actuator Speed:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">By providing a larger volume of air, the volume booster can accelerate the actuator&#8217;s response time, allowing for faster valve opening or closing.<\/li>\n\n\n\n<li class=\"\">This is crucial in applications where rapid valve actuation is required, such as emergency shutdowns or fast-acting control loops.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">2. <strong>Overcoming Back Pressure:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">In systems with high back pressure, the actuator may struggle to overcome the resistance and achieve full stroke.<\/li>\n\n\n\n<li class=\"\">A volume booster can provide the additional air supply needed to counteract the back pressure and ensure complete valve travel.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">3. <strong>Consistent Performance:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">By maintaining a stable and sufficient air supply, a volume booster helps to ensure consistent valve performance across a wide range of operating conditions.<\/li>\n\n\n\n<li class=\"\">This is particularly important in applications where valve reliability and accuracy are critical.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">4. <strong>Handling Large Actuators:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">For large-sized actuators that require significant air volume to operate, a volume booster is essential to provide the necessary power.<\/li>\n\n\n\n<li class=\"\">This is common in valves used in high-pressure or large-diameter pipelines.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">By addressing these factors, the volume booster enhances the overall performance and reliability of the pneumatic process valve.<\/p>\n\n<\/div>\n\t\t<\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-5f5de3ff-b795-407e-a425-6643e92dcb04\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-1-7932b330-03c5-4a76-ada9-95ecb338d0bf\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-7932b330-03c5-4a76-ada9-95ecb338d0bf\" style=\"color: #000000; \">Reasons for Fitting a Pneumatic Process Valve with a Feedback Positioner<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-1-7932b330-03c5-4a76-ada9-95ecb338d0bf\">\n\n<p class=\"wp-block-paragraph\">A feedback positioner is a device that improves the accuracy and response of a pneumatic process valve. Here are the primary reasons for fitting one:<\/p>\n\n\n\n<h3 class=\" wp-block-heading\">1. <strong>Improved Accuracy:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Eliminates hysteresis:<\/strong> Positioners compensate for the valve&#8217;s inherent hysteresis, ensuring that the valve stem position accurately reflects the control signal.<\/li>\n\n\n\n<li class=\"\"><strong>Overcomes friction:<\/strong> Friction in the valve stem can prevent accurate positioning. Positioners provide the necessary force to overcome this friction.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">2. <strong>Faster Response Time:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Reduces stiction:<\/strong> Positioners help to overcome the static friction (stiction) that occurs when the valve is initially opened or closed.<\/li>\n\n\n\n<li class=\"\"><strong>Amplifies control signal:<\/strong> By amplifying the control signal, positioners enable faster valve movement.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">3. <strong>Consistent Performance:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Compensates for changes in supply pressure:<\/strong> Positioners maintain consistent valve performance even if the supply air pressure fluctuates.<\/li>\n\n\n\n<li class=\"\"><strong>Handles back pressure:<\/strong> Positioners can overcome back pressure on the valve, ensuring full valve travel.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">4. <strong>Remote Monitoring:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Many positioners include a feedback signal that allows for remote monitoring of the valve position. This is essential for troubleshooting and process optimization.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">5. <strong>Increased Control Range:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">By amplifying the control signal, positioners can extend the control range of the valve, allowing for finer adjustments.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In essence, a feedback positioner enhances the performance of a pneumatic process valve by improving accuracy, speed, and reliability.<\/p>\n\n<\/div>\n\t\t<\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-d5631513-f2a7-4ffe-a8b7-1c58c24fab2e\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-2-7932b330-03c5-4a76-ada9-95ecb338d0bf\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-7932b330-03c5-4a76-ada9-95ecb338d0bf\" style=\"color: #000000; \">Actuator Type for Fail-Safe Fuel Supply System<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-2-7932b330-03c5-4a76-ada9-95ecb338d0bf\">\n\n<p class=\"wp-block-paragraph\"><strong>For a fuel supply system where the valve must not move on loss of power to the control system, a spring-return pneumatic actuator is the most suitable choice.<\/strong><\/p>\n\n\n\n<h3 class=\" wp-block-heading\">Reasons for Choosing a Spring-Return Pneumatic Actuator:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Fail-safe position:<\/strong> In the event of a power failure, the compressed air supply to the actuator is lost. The spring within the actuator will then return the valve to its default (closed) position, preventing fuel leakage.<\/li>\n\n\n\n<li class=\"\"><strong>Reliability:<\/strong> Pneumatic systems are generally more reliable than electric or hydraulic systems in harsh environments.<\/li>\n\n\n\n<li class=\"\"><strong>Speed of operation:<\/strong> Pneumatic actuators can provide rapid valve actuation when required.<\/li>\n\n\n\n<li class=\"\"><strong>Safety:<\/strong> The fail-safe nature of the spring-return actuator contributes to overall system safety.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Additional considerations:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Actuator size:<\/strong> The actuator must be sized correctly to provide sufficient force to operate the valve.<\/li>\n\n\n\n<li class=\"\"><strong>Spring force:<\/strong> The spring force should be adequate to overcome any potential back pressure on the valve.<\/li>\n\n\n\n<li class=\"\"><strong>Safety devices:<\/strong> Additional safety devices, such as solenoid valves and interlocks, can be incorporated to enhance system reliability.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">By selecting a spring-return pneumatic actuator, the fuel supply system is designed to prioritize safety and prevent uncontrolled fuel flow in case of power loss.<\/p>\n\n<\/div>\n\t\t<\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-eb37fec6-97b8-4ceb-891a-51dc8304c744\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-3-7932b330-03c5-4a76-ada9-95ecb338d0bf\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-7932b330-03c5-4a76-ada9-95ecb338d0bf\" style=\"color: #000000; \">Actuator Type for Lubrication Oil Cooling System<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-3-7932b330-03c5-4a76-ada9-95ecb338d0bf\">\n\n<p class=\"wp-block-paragraph\"><strong>A pneumatic actuator with a double-acting design is typically suitable for process valves in a lubrication oil cooling system.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reasons for Choosing a Double-Acting Pneumatic Actuator:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Bidirectional control:<\/strong> This type of actuator can open and close the valve in both directions, allowing for precise control of oil flow through the cooler. \u00a0 <a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\">1. Single-Acting vs. Double-Acting Valve Actuators &#8211; Gemini Valve <\/a><a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\">www.geminivalve.com<\/a><a href=\"https:\/\/www.geminivalve.com\/single-vs-double-acting-actuator\/#:~:text=Source-,What%20Is%20a%20Double%2DActing%20Actuator%3F,open%20and%20close%20the%20valve.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Speed control:<\/strong> The speed of valve operation can be adjusted by controlling the air supply to the actuator.<\/li>\n\n\n\n<li class=\"\"><strong>Reliability:<\/strong> Pneumatic systems are generally robust and reliable in industrial environments. \u00a0 <a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\">1. Industrial Applications of Pneumatic Systems | JHFOSTER <\/a><a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\">jhfoster.com<\/a><a href=\"https:\/\/jhfoster.com\/automation-blogs\/pneumatic-systems-a-perfect-fit-for-industrial-applications\/#:~:text=Finally%2C%20pneumatic%20systems%20function%20well,as%20those%20that%20feature%20high\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Safety:<\/strong> Pneumatic systems are inherently safer than hydraulic or electrical systems in many applications. \u00a0 <a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\">1. Understanding the Key Differences Between Hydraulics and Pneumatics &#8211; Titan Fittings <\/a><a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\">www.titanfittings.com<\/a><a href=\"https:\/\/www.titanfittings.com\/articles\/hydraulics-vs-pneumatics-the-key-differences\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Flexibility:<\/strong> Double-acting actuators can be used with various valve types, including ball, globe, and butterfly valves.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Additional considerations:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Actuator size:<\/strong> The actuator should be sized appropriately to match the valve size and the required flow rate.<\/li>\n\n\n\n<li class=\"\"><strong>Positioner:<\/strong> For precise control, a feedback positioner can be added to the actuator.<\/li>\n\n\n\n<li class=\"\"><strong>Fail-safe mechanism:<\/strong> Depending on the specific application, a fail-safe mechanism (e.g., spring return) might be necessary.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">By selecting a double-acting pneumatic actuator, the lubrication oil cooling system can effectively regulate oil temperature through precise control of the bypass valve.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>(a) State the reasons for fitting a pneumatic process valve with EACH of the following:(i) a volume booster;(2)(ii) a feedback positioner.(2)(b) State, with reasons, the type of actuator fitted to the process valves for EACH of the following systems:(i) a fuel supply system in which the valve must not move on loss of power to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-2164","page","type-page","status-publish","hentry"],"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/2164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2164"}],"version-history":[{"count":4,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/2164\/revisions"}],"predecessor-version":[{"id":9863,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/2164\/revisions\/9863"}],"wp:attachment":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}