{"id":17010,"date":"2022-08-11T10:00:33","date_gmt":"2022-08-11T18:00:33","guid":{"rendered":"https:\/\/www.linquip.com\/blog\/?p=17010"},"modified":"2026-02-27T10:53:34","modified_gmt":"2026-02-27T18:53:34","slug":"what-is-drain-valve-working-principle-types","status":"publish","type":"post","link":"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/","title":{"rendered":"What is Drain Valve? Working Principle, Types &#038; Applications"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#What_is_A_Drain_Valve\" >What is A Drain Valve?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#How_Does_a_Drain_Valve_Work\" >How Does a Drain Valve Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#Parts_of_Drain_Valves\" >Parts of Drain Valves<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#Types_of_Drain_Valves\" >Types of Drain Valves<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#Application_of_Drain_Valves\" >Application of Drain Valves<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#How_to_Use_a_Drain_Valve\" >How to Use a Drain Valve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.linquip.com\/blog\/what-is-drain-valve-working-principle-types\/#FAQs_about_Drain_Valves\" >FAQs about Drain Valves<\/a><\/li><\/ul><\/nav><\/div>\n<p><i><span style=\"font-weight: 400;\">What is Drain Valve? Working Principle &amp; Types<\/span><\/i><span style=\"font-weight: 400;\"> &#8211; A drain valve is a mechanical mechanism that allows surplus liquid or gas to be released from a storage tank, vessel, or container. Although some drain valves are automatically opened when a specific pressure or temperature is met, most drain valves are opened manually by twisting a screw or handle. When the valve is opened, gravity or pressure differential causes liquid or air to drain from the storage tank.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_A_Drain_Valve\"><\/span><span style=\"font-weight: 400;\">What is A Drain Valve?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A condensate drain valve is a tiny mechanism found at the bottom of the air receiver of a compressor. Whether water flows out of or stays inside the compressor tank depends on whether the air compressor drain valve is open or closed.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">While the reservoir tank is the most common location for a drain valve, it may also be used to eliminate moisture from other compressor components and accessories. Compressor filters, drip legs, air dryers, air\/water separators, and nearly everywhere else where condensate is a concern can benefit from an air compressor valve extension.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Air may carry a significant amount of water vapor in its natural condition. The function of compressing air diminishes the vapor-holding capacity substantially. Water molecules clump together and generate condensation as a result of compression. Inside the tank, the impact is akin to a thunderstorm.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The critical purpose of a drain valve is to enable surplus water vapor to escape into the atmosphere. The removal of condensation aids in the prevention of corrosion, which can harm the compressor and reduce its lifespan. The drain valve lowers wear on tools and equipment operated by the compressor unit by removing water from the compressed air system.<\/span><\/p>\n<figure id=\"attachment_17017\" aria-describedby=\"caption-attachment-17017\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-17017\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4.png\" alt=\"What is Drain Valve? Working Principle &amp; Types\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4.png 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4-300x300.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4-150x150.png 150w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4-768x768.png 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4-696x696.png 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure1-4-420x420.png 420w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-17017\" class=\"wp-caption-text\">A Drain Valve (Reference: <strong>pegleryorkshire.co.uk<\/strong>)<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"How_Does_a_Drain_Valve_Work\"><\/span><span style=\"font-weight: 400;\">How Does a Drain Valve Work?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The bulk of industrial air compressors produces between 100 and 175 pounds per square inch of pressure. This pressure enables air compressors to perform an almost infinite number of functions. An air compressor comprises multiple valves that assist regulate the flow of air and pressure to guarantee optimal operation and safety.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">To compress air inside a sealed chamber, most industrial air compressors employ one of two methods: pistons or a revolving screw. Naturally, the equipment takes in ambient air around the compressor throughout this operation. Water vapor is present in this air.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">When the pressure of air is increased, some moisture in water molecules escapes. In addition, as the air cools to ambient temperature, the water vapor condenses into liquid, releasing more moisture. The water in the tank collects near the bottom. A 200 CFM (25 HP) compressor, for example, will create 18 gallons of water each day.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Water in your compression chamber will quickly cause major issues, including rust and corrosion. Corrosion like this will eat straight through the sidewall of your air receiver if left uncontrolled. Excessive water might also cause the air dryers in your compressor to get overwhelmed and stop working correctly. All of this results in increased wear on tools and other air-operated equipment downstream.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">All air compressors feature a drain valve on the bottom of the air receiver to prevent these issues. Water can flow out of the system through the drain valve.<\/span><\/p>\n<figure id=\"attachment_17013\" aria-describedby=\"caption-attachment-17013\" style=\"width: 1280px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-17013\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3.png\" alt=\"What is Drain Valve? Working Principle &amp; Types\" width=\"1280\" height=\"720\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3.png 1280w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3-300x169.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3-1024x576.png 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3-768x432.png 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3-696x392.png 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3-1068x601.png 1068w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure2-3-747x420.png 747w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><figcaption id=\"caption-attachment-17013\" class=\"wp-caption-text\">Working principle of a Drain Valve (Reference: <strong>youtube.com<\/strong>)<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Parts_of_Drain_Valves\"><\/span><span style=\"font-weight: 400;\">Parts of Drain Valves<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A drain valve is made up of a stem and a hollow cylindrical body. The stem runs parallel to the hollow section of the body&#8217;s axis. When the stem is open, liquid or gas travels through the hollow area of the body. The stem closes the passage through the body when it is rotated, thereby preventing the liquid or gas from leaving. The stem of certain drain valve designs prevents the flow, whereas the stem of others is employed to raise or lower a flow-blocking gate. Depending on the design, this gate might be in the shape of a disk or a ball.<\/span><\/p>\n<figure id=\"attachment_17014\" aria-describedby=\"caption-attachment-17014\" style=\"width: 614px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-17014\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure3-3.png\" alt=\"What is Drain Valve? Working Principle &amp; Types\" width=\"614\" height=\"449\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure3-3.png 614w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure3-3-300x219.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure3-3-574x420.png 574w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure3-3-80x60.png 80w\" sizes=\"(max-width: 614px) 100vw, 614px\" \/><figcaption id=\"caption-attachment-17014\" class=\"wp-caption-text\">Parts of a Drain Valve (Reference: <strong>alibaba.com<\/strong>)<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_Drain_Valves\"><\/span><span style=\"font-weight: 400;\">Types of Drain Valves<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Drain valves come in a variety of shapes and sizes, ranging from basic screw plugs to automated, electrically controlled types. The most basic oil drain valve on a car is a threaded plug placed into a matching threaded hole in the engine oil pan. The plug serves as the valve stem, and it is activated by removing it from the oil pan. Highly complicated valves, on the other hand, are electronically controlled to open at certain periods or in reaction to a predetermined temperature or pressure thresholds.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A manual drain valve is the most basic sort of drain valve. It remains closed unless manually opened by a person. The operator is responsible for emptying the condensate from the tank on a regular basis. This task should not be too difficult for smaller air compressors.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For industrial air compressors, a manual drain valve isn&#8217;t practicable. Instead, one of three valve types is used in such air compressors.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A float-operated drain, for example, is made of a unique housing constructed around the drain valve. Water pours into this housing as it accumulates in the tank. A float inside the housing rises as the water level rises. When the float reaches a predetermined level, the drain opens and the water flows out. With this sort of valve, some compressed air is wasted. This can waste power in bigger air compressor systems.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A timer-controlled drain, the second type of drain valve, utilizes a different strategy. The water level is not measured by the valve. Instead, an electrical timer is used to open and stop the valve at the user&#8217;s specified timings. The amount of liquid generated fluctuates because the water in compressed air depends on the ambient relative humidity. Again, compressed air and energy might be lost.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A zero-loss drain, the third type of drain valve, has a distinct triggering mechanism. The presence of water in the valve is monitored by a sensor probe. When the water level rises to a certain level, the probe transmits an electrical signal to a solenoid, which opens the drain but stops the flow before any compressed air is released.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For air compressors used in highly controlled environments, a timed valve makes sense. The valve may be configured to open at certain periods after the water accumulation rate has been calculated. This balances drainage against the air loss that might happen when a drain valve opens.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Application_of_Drain_Valves\"><\/span><span style=\"font-weight: 400;\">Application of Drain Valves<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Drain valves are utilized in many different situations. They&#8217;re common in things like air compressors and air supply lines. An air drain valve allows potentially dangerous condensates like water, oil, or rust to be removed. These impurities can accumulate over time, obstructing the airline or weakening the storage tank. The interior of steel storage tanks might corrode if there is too much water in the system. On big vehicles with air braking systems, automatic air drain valves are often utilized to remove oil and water that may cause the brakes to fail.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Water heater drain valves are used to drain water and remove contaminants from hot water heaters on a regular basis. Mineral scale, composed of calcium or other minerals, can build up within water heaters over time. Sediments such as dirt or sand can also accumulate in the tank&#8217;s bottom. If left unchecked, this reduces the heating efficacy of the heating components and can eventually lead to irreversible damage. Most of these contaminants may be drained from the hot water heater by periodically opening the drain valve.<\/span><\/p>\n<figure id=\"attachment_17016\" aria-describedby=\"caption-attachment-17016\" style=\"width: 958px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-17016\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure4-2.png\" alt=\"What is Drain Valve? Working Principle &amp; Types\" width=\"958\" height=\"605\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure4-2.png 958w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure4-2-300x189.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure4-2-768x485.png 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure4-2-696x440.png 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2022\/05\/Figure4-2-665x420.png 665w\" sizes=\"(max-width: 958px) 100vw, 958px\" \/><figcaption id=\"caption-attachment-17016\" class=\"wp-caption-text\">Drain Valves have numerous applications in the industry (Reference: <strong>vanairsystems.com<\/strong>)<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Use_a_Drain_Valve\"><\/span><span style=\"font-weight: 400;\">How to Use a Drain Valve<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Each drain valve type described above is self-contained, requiring little or no physical intervention. The most difficult part is deciding on a model that is compatible with your equipment and fits your operational needs.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If your compressor is not near an electrical supply, for example, a float-operated machine makes sense. If you use your compressor on a regular basis, a timer-controlled model is probably the best option. If you&#8217;re concerned about compressed air loss while draining, a zero-loss air compressor drain valve is ideal.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Do you need assistance choosing a drain valve? Inquire about it at the <\/span><a href=\"https:\/\/www.linquip.com\/\"><b>Linquip<\/b><\/a><span style=\"font-weight: 400;\"> platform! There you can find numerous <\/span><a href=\"https:\/\/www.linquip.com\/suppliers-companies\/manufacturer?category_id=339&amp;cn=valve\"><b>Manufacturers<\/b><\/a> <span style=\"font-weight: 400;\">and <\/span><a href=\"https:\/\/www.linquip.com\/suppliers-companies\/distributor?category_id=339&amp;cn=valve\"><b>Distributors<\/b><\/a><span style=\"font-weight: 400;\"> of valves along with various <\/span><a href=\"https:\/\/www.linquip.com\/suppliers-companies\/service-provider?category_id=339&amp;cn=valve\"><b>Service Providers<\/b><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs_about_Drain_Valves\"><\/span><span style=\"font-weight: 400;\">FAQs about Drain Valves<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">1. What is the purpose of draining valves?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The critical purpose of a drain valve is to enable surplus water vapor to escape into the atmosphere. The removal of condensation aids in the prevention of corrosion, which can harm the compressor and reduce its lifespan.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">2. Should the drain valve be open or closed?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">If the unit will not be used for a long time, it is advisable to keep the drain valve open until it is needed. This allows moisture to drain entirely and prevents rusting on the interior of the tank.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">3. Where should drain valves be installed?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Above the internal stop valve, a drain-off valve must be fitted. It is the property owner&#8217;s obligation. The building water service is made up of the communication and supply pipes.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">4. Which way do you turn a drain valve?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To open the drain, look at the handle of the drain valve and turn it counterclockwise. Close the drain by turning it clockwise. It&#8217;s common for new valves to be difficult to turn. If necessary, use pliers; the valve will not be damaged.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">5. Why is the drain valve used in air bottles?<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To remove collected condensate from the receiver, a drain valve is installed at the bottom of the bottle.<\/span><\/p>\n<h3><b>Buy Equipment or Ask for a Service<\/b><\/h3>\n<p>By using Linquip RFQ Service, you can expect\u00a0to receive quotations from various suppliers across multiple industries and regions.<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"http:\/\/linquip.com\/get-quote?utm_source=blog&amp;utm_medium=content&amp;utm_campaign=product_list&amp;utm_term=product_list&amp;utm_content=rfq\" target=\"_blank\" rel=\"noopener\">Click Here to Request a Quotation From Suppliers and Service Provider<\/a><\/strong><\/p>\n<p><strong><em>Read More In Linquip<\/em><\/strong><\/p>\n<ul>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/how-to-prevent-sewer-backflow-valve-problems\/\" target=\"_blank\" rel=\"noopener\">How to Prevent Sewer Backflow Valve Problems?<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/what-is-pilot-valve\/\" target=\"_blank\" rel=\"noopener\">What is Pilot Valve? Working Principle &amp; Types (Complete Guide)<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/what-is-poppet-valve\/\" target=\"_blank\" rel=\"noopener\">What is Poppet Valve? Working Principle, Types &amp; PDF<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/shower-valve-types-your-101-guide\/\" target=\"_blank\" rel=\"noopener\">6 Different Shower Valve Types + Pictures: Your 101 Guide!<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/best-ball-valves\/\" target=\"_blank\" rel=\"noopener\">The 9 Best Ball Valves: Top Rated Models (2026 Reviews)<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/parts-of-butterfly-valve\/\" target=\"_blank\" rel=\"noopener\">6 Parts of Butterfly Valve + Function: A complete guide!<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/types-of-pressure-relief-valve-all-you-need-to-know-about-prvs\/\" target=\"_blank\" rel=\"noopener\">Types of Pressure Relief Valve: All you need to know about PRVs<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/types-of-plumbing-valves-a-complete-guide\/\" target=\"_blank\" rel=\"noopener\">6 Main Types of Plumbing Valves: Complete Guide<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/air-release-valve-installation-costs\/\" target=\"_blank\" rel=\"noopener\">Air Release Valve Installation Costs in 2026 (Ultimate Guide) + PDF<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/angle-valve-installation-costs\/\" target=\"_blank\" rel=\"noopener\">Angle Valve Installation Costs: Practical Factors in 2026<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/globe-valve-installation-costs\/\" target=\"_blank\" rel=\"noopener\">Globe Valve Installation Costs in 2026 (Clear Guide) + PDF<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/gate-valve-installation-costs\/\" target=\"_blank\" rel=\"noopener\">Gate Valve Installation Costs and Maintenance in 2026 (Clear Guide)<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/types-of-expansion-valves-guide\/\" target=\"_blank\" rel=\"noopener\">6 Main Types of Expansion Valves: an Easy to Understand Guide<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/angle-valve\/\" target=\"_blank\" rel=\"noopener\">Angle Valve: The Most Essential Tips of Features, Functions &amp; Applications<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/globe-valve-parts-101-all-you-need-to-know\/\" target=\"_blank\" rel=\"noopener\">Globe valve parts 101: All you need to know in one place<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/the-10-best-sprinkler-valves-in-2022\/\" target=\"_blank\" rel=\"noopener\">The 10 Best Sprinkler Valves in 2026<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt; font-family: verdana, geneva, sans-serif;\"><a href=\"https:\/\/www.linquip.com\/blog\/what-is-automatic-expansion-valve\/\" target=\"_blank\" rel=\"noopener\">What is Automatic Expansion Valve: A Basic Guide<\/a><\/span><\/strong><\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What is Drain Valve? Working Principle &amp; Types &#8211; A drain valve is a mechanical mechanism that allows surplus liquid or gas to be released from a storage tank, vessel, or container. Although some drain valves are automatically opened when a specific pressure or temperature is met, most drain valves are opened manually by twisting &#8230;<\/p>\n","protected":false},"author":12,"featured_media":17015,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[13],"tags":[333],"class_list":["post-17010","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-valves","tag-industrial-guideline"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/17010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/comments?post=17010"}],"version-history":[{"count":9,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/17010\/revisions"}],"predecessor-version":[{"id":37819,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/17010\/revisions\/37819"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media\/17015"}],"wp:attachment":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media?parent=17010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/categories?post=17010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/tags?post=17010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}