{"id":13136,"date":"2022-01-18T10:00:06","date_gmt":"2022-01-18T18:00:06","guid":{"rendered":"https:\/\/www.linquip.com\/blog\/?p=13136"},"modified":"2022-03-08T03:25:45","modified_gmt":"2022-03-08T11:25:45","slug":"types-of-solenoid-valves","status":"publish","type":"post","link":"https:\/\/www.linquip.com\/blog\/types-of-solenoid-valves\/","title":{"rendered":"Types Of Solenoid Valves: Everything You Need To Know"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 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\/types-of-solenoid-valves\/#Different_Types_Of_Solenoid_Valves\" >Different Types Of Solenoid Valves<\/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\/types-of-solenoid-valves\/#Based_on_the_number_of_pipe_connections\" >Based on the number of pipe connections<\/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\/types-of-solenoid-valves\/#Based_on_working_principles\" >Based on working principles<\/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\/types-of-solenoid-valves\/#Based_on_function\" >Based on function<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-weight: 400;\">Flow control of liquid or gaseous solutions has long been carried out not only mechanically. Modern industrial enterprises are constantly upgrading the main devices to meet all requirements and standards. So, in recent years, so-called solenoid valves are increasingly used for industrial purposes. A solenoid valve is an electrically operated valve that is mainly used to regulate the flow of air or a liquid in pneumatic and hydraulic power systems. Different <\/span><span style=\"font-weight: 400;\">types of solenoid valves<\/span><span style=\"font-weight: 400;\"> are available in the market based on application. To pick your type, Linquip provides a comprehensive guide for you. Read on to find out more about these different types.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-13207 size-large\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-1024x1024.png\" alt=\"Types Of Solenoid Valves\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-1024x1024.png 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-300x300.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-150x150.png 150w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-768x768.png 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-696x696.png 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-1392x1392.png 1392w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main-1068x1068.png 1068w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/2.-main.png 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Different_Types_Of_Solenoid_Valves\"><\/span><span style=\"font-weight: 400;\">Different <\/span><span style=\"font-weight: 400;\">Types Of Solenoid Valves<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>Based on the number of pipe connections:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Two-way Solenoid Valve<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Normally open construction<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Normally closed construction<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Three-way Solenoid Valve<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Normally open construction<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Normally closed construction<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Universal construction<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Four-way Solenoid Valve<\/span><\/li>\n<\/ul>\n<p><b>Based on working principles:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Direct-acting Solenoid Valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Pilot-operated Solenoid Valve<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Internally piloted solenoid valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Externally piloted solenoid valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Semi-direct Solenoid Valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Pressure-operated Solenoid Valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Air-operated Solenoid Valve<\/span><\/li>\n<\/ul>\n<p><b>Based on function:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">General-purpose Solenoid Valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Safety Shut-off Solenoid Valve<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Process-control Solenoid Valve<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The common <\/span><span style=\"font-weight: 400;\">types of solenoid valves<\/span><span style=\"font-weight: 400;\"> are explained below.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-13218 size-full\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Two-way-Solenoid-Valves.png\" alt=\"Types Of Solenoid Valves\" width=\"945\" height=\"851\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Two-way-Solenoid-Valves.png 945w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Two-way-Solenoid-Valves-300x270.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Two-way-Solenoid-Valves-768x692.png 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Two-way-Solenoid-Valves-696x627.png 696w\" sizes=\"(max-width: 945px) 100vw, 945px\" \/><\/p>\n<p><em><strong>Read More on Linquip<\/strong><\/em><\/p>\n<ul>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\"><a title=\"Types of shut off valve: Your ultimate guide\" href=\"https:\/\/www.linquip.com\/blog\/types-of-shut-off-valve-your-ultimate-guide\/\" target=\"_blank\" rel=\"noopener\">Types of shut off valve: Your ultimate guide<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\"><a title=\"Types of plumbing valves: A complete guide\" href=\"https:\/\/www.linquip.com\/blog\/types-of-plumbing-valves-a-complete-guide\/\" target=\"_blank\" rel=\"noopener\">Types of plumbing valves: A complete guide<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\"><a title=\"Types of isolation valve: All you need to know!\" href=\"https:\/\/www.linquip.com\/blog\/types-of-isolation-valve\/\" target=\"_blank\" rel=\"noopener\">Types of isolation valve: All you need to know!<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\"><a title=\"A Comprehensive Guide To Different Types Of Air Valves\" href=\"https:\/\/www.linquip.com\/blog\/types-of-air-valves\/\" target=\"_blank\" rel=\"noopener\">A Comprehensive Guide To Different Types Of Air Valves<\/a><\/span><\/strong><\/span><\/li>\n<li><a title=\"Types of Water Valves: The Ultimate Guide\" href=\"https:\/\/www.linquip.com\/blog\/types-of-water-valves-the-ultimate-guide\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\">Types of Water Valves: The Ultimate Guide<\/span><\/strong><\/span><\/a><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\"><a title=\"A Complete Tutorial To Learn About Different Types Of Check Valves\" href=\"https:\/\/www.linquip.com\/blog\/a-complete-tutorial-to-learn-about-different-types-of-check-valves\/\" target=\"_blank\" rel=\"noopener\">A Complete Tutorial To Learn About Different Types Of Check Valves<\/a><\/span><\/strong><\/span><\/li>\n<li><span style=\"text-decoration: underline;\"><strong><span style=\"font-size: 10pt;\"><a title=\"Types of pressure relief Valve: All you need to know about PRVs\" 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;\"><a title=\"Types of non return valve: Introducing 6 types and more!\" href=\"https:\/\/www.linquip.com\/blog\/13040-2\/\" target=\"_blank\" rel=\"noopener\">Types of non return valve: Introducing 6 types and more!<\/a><\/span><\/strong><\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Based_on_the_number_of_pipe_connections\"><\/span><span style=\"font-weight: 400;\">Based on the number of pipe connections<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Two-way Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">As the name suggests, a two-way solenoid valve has one inlet and one outlet piping connection. Each of these two ports is alternately used to permit flow as well as close it off. The inlet pipe should have greater pressure compared to the outlet in order to force the fluid through the two-way valve. The equal pressure of the two pipes will not facilitate the flow of fluid.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Two-way valves can be categorized into the following two types.<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Normally open construction\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">In a normally open valve, the valve remains open until some type of current is applied to close the valve. Suspension of the electrical power causes the valve to automatically reopen to its normal state.<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\">\n<h4><span style=\"font-weight: 400;\">Normally closed construction<\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A normally closed solenoid valve is the most common type, working in the opposite fashion, remaining closed until a power source causes it to open.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-13217 size-large\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-1024x1024.png\" alt=\"Types Of Solenoid Valves\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-1024x1024.png 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-300x300.png 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-150x150.png 150w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-768x768.png 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-696x696.png 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves-1068x1068.png 1068w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Three-way-Solenoid-Valves.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Three-way Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Three-way or three-port <a href=\"https:\/\/en.wikipedia.org\/wiki\/Solenoid_valve\" target=\"_blank\" rel=\"noopener\">solenoid valves<\/a> have three input\/output ports and two valve seals, one of which will always be open and one of which will always be closed in normal (inactive) mode.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In response to an electrical input signal, the open\/closed state of these two ports is reversed, allowing for various valve operations to be controlled. Flow can thus be diverted between channels as required, in accordance with the way the port connections have been set up and connected within the larger pipeline system.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Three-way valves operate in the following three modes:<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\">\n<h4><span style=\"font-weight: 400;\">Normally open construction<\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The pressure port is connected to the cylinder port when the valve is de-energized. But when the valve is energized the pressure port is closed and the cylinder port is connected to the exhaust port.<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\">\n<h4><span style=\"font-weight: 400;\">Normally closed construction<\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u00a0When the valve is de-energized, the pressure port is closed and the exhaust port is connected to the cylinder port. With the valve energized, the pressure port is connected to the cylinder port and the exhaust port is closed.<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\">\n<h4><span style=\"font-weight: 400;\">Universal construction<\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This type allows the valve to be connected in either the normally closed or normally open position. In addition, the valve may be connected to select one or two ports or to divert flow from one port to another.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Four-way Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These valves can have four or more port connections. Four-way valves are commonly used with a dual-acting cylinder or actuator. In this version, half of the port connections supply pressure, and the remaining connections provide exhaust pressure.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-13209 size-full\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Direct-acting-Solenoid-Valves.jpg\" alt=\"Types Of Solenoid Valves\" width=\"1000\" height=\"1000\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Direct-acting-Solenoid-Valves.jpg 1000w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Direct-acting-Solenoid-Valves-300x300.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Direct-acting-Solenoid-Valves-150x150.jpg 150w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Direct-acting-Solenoid-Valves-768x768.jpg 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Direct-acting-Solenoid-Valves-696x696.jpg 696w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Based_on_working_principles\"><\/span><span style=\"font-weight: 400;\">Based on working principles<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Direct-acting Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These <\/span><span style=\"font-weight: 400;\">types of solenoid valves<\/span><span style=\"font-weight: 400;\"> have a coil that magnetically opens the valve in direct action, causing the shaft and the seat of the valve to shift. Direct-acting solenoid Valves use the energy produced by the magnetic field of the solenoid to operate the valve. When the electrical current is removed, a mechanical spring returns the valve to its original position.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Direct-acting valves are utilized to prevent the development of too much pressure in a device.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Pilot-operated Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">In pilot-operated valves (sometimes referred to as an indirect-acting solenoid), the plunger opens up the pilot opening while the pressure causes the valve to open and close. In spite of the fact that pilot-operated valves require less electrical energy to work, they need to keep up full power with a specific end goal to stay in an open state, and they perform at a slower rate than direct-acting solenoids. Direct-acting valves just need full power when opening the valve, as they can hold their vacant position notwithstanding when working on low power.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are two types of pilot-operated solenoid valves.<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\">\n<h4><span style=\"font-weight: 400;\">Internally piloted solenoid valve<\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">For high flow rate and high-pressure applications, internally piloted solenoid valves are used. In this type of valve, pressure across the valve opens or closes the valve. To achieve this, an orifice or an equalizing hole is installed. The usual design involves the core blocking flow on the orifice. When the valve is closed, the fluid passes through the orifice and pressure builds up on both sides of the diaphragm. As long as the fluid flow is blocked, a shut-off force is created due to the larger effective area on top of the diaphragm. When the valve is opened, the core opens the orifice, and pressure is relieved from the top of the diaphragm. The line pressure then opens the valve.<\/span><\/p>\n<ul style=\"list-style-type: square;\">\n<li style=\"font-weight: 400;\">\n<h4><span style=\"font-weight: 400;\">Externally piloted solenoid valve<\/span><\/h4>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This type of valve applies the same concept from internally piloted valves, but the pressure used to actuate the valve comes from fluid from an external source. A separate fluid circuit is integrated into the valve through an extra port.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-13216 size-large\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves-1024x576.jpg\" alt=\"Types Of Solenoid Valves\" width=\"1024\" height=\"576\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves-1024x576.jpg 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves-300x169.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves-768x432.jpg 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves-696x392.jpg 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves-1068x601.jpg 1068w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/Semi-direct-Solenoid-Valves.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Semi-direct Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Semi-direct acting combines the principles of direct and indirect-acting valves. Aside from the magnetic force from the solenoid, the pressure differential across the valve assists in opening or closing the valve. When the plunger is actuated, the diaphragm is lifted to open the valve. At the same time, an orifice is opened causing pressure to be relieved on top of the diaphragm. Closing this orifice by the plunger creates a larger pressure on top of the diaphragm closing the valve.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Pressure-operated Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These <\/span><span style=\"font-weight: 400;\">types of solenoid valves<\/span><span style=\"font-weight: 400;\"> are usually diaphragm or piston-operated valves. They are normally equipped with a 3-way or 4-way solenoid pilot that controls the opening or closing of the main valve using operating pressure.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Air operated Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">This solenoid valve type has two basic functional units.<\/span><\/p>\n<ul style=\"list-style-type: circle;\">\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">an operator with a piston or diaphragm assembly that develops a force upon pressurization.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">a valve with an orifice in which a plug or disc is positioned to allow or stop the flow.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">A piston is normally used for pneumatic operation whereas low and instrument air-pressure range operators typically use a diaphragm.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-13211 size-large\" src=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves-1024x1024.jpg\" alt=\"Types Of Solenoid Valves\" width=\"1024\" height=\"1024\" title=\"\" srcset=\"https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves-1024x1024.jpg 1024w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves-300x300.jpg 300w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves-150x150.jpg 150w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves-768x768.jpg 768w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves-696x696.jpg 696w, https:\/\/www.linquip.com\/blog\/wp-content\/uploads\/2021\/11\/General-purpose-Solenoid-Valves.jpg 1052w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Based_on_function\"><\/span><span style=\"font-weight: 400;\">Based on function<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">General-purpose Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These <\/span><span style=\"font-weight: 400;\">types of solenoid valves<\/span><span style=\"font-weight: 400;\"> are either normally open or normally closed valves used for controlling the flow of a fluid. However, these valves do not act as safety valves.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Safety shut-off Solenoid valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u00a0This is normally a closed valve of the \u201con\u201d or \u201coff\u201d type that actuates using a safety control device for preventing unsafe fluid delivery. A multiple port valve can work as a safety shut-off valve with respect to its normally closed port.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><span style=\"font-weight: 400;\">Process-control Solenoid Valve<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">These type of solenoid valves are approved to control flammable gases but does not reliably work as a safety shut-off valve.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">So, this was everything you needed to know about different <\/span><span style=\"font-weight: 400;\">types of solenoid valves<\/span><span style=\"font-weight: 400;\">. If you enjoy this article, let us know what you think by leaving a reply in the comment section. We will be more than glad to have your viewpoint on the article. Is there any question we can help you through? Feel free to <a href=\"https:\/\/www.linquip.com\/sign-up?client_redirect=\/\" target=\"_blank\" rel=\"noopener\">sign up<\/a> on Linquip where our experts are prepared to provide you with the most professional advice.<\/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 Providers<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Flow control of liquid or gaseous solutions has long been carried out not only mechanically. Modern industrial enterprises are constantly upgrading the main devices to meet all requirements and standards. So, in recent years, so-called solenoid valves are increasingly used for industrial purposes. A solenoid valve is an electrically operated valve that is mainly used &#8230;<\/p>\n","protected":false},"author":4,"featured_media":13206,"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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[13],"tags":[331],"class_list":["post-13136","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-valves","tag-industrial-types"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/13136","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/comments?post=13136"}],"version-history":[{"count":0,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/posts\/13136\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media\/13206"}],"wp:attachment":[{"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/media?parent=13136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/categories?post=13136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linquip.com\/blog\/wp-json\/wp\/v2\/tags?post=13136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}