Tonga They can be found in sewage plants, where already purified liquids must be kept from contact with those that have not been purified. They are largely used as part of the braking system for vehicles. Turkey Silicone (VMQ) Laos Tunisia If your pool is getting up there in years, it may be time to start replacing those worn out parts. Peru Pool valves keep your pool water moving in the right direction. Also, if the pump is turned off, theres nothing to keep the water from flowing the wrong way. A check valve that faces a lot of pressure on a regular basis, such as those found in oil drilling operations, will wear out a great deal more quickly than those that face only weak pressure differentials. Equatorial Guinea Belize A check valve will stop this backflow from happening and keep the water on your roof where it needs to be. Pakistan Sweden Lithuania Serbia Lesotho When the pressure behind the valve is higher than the pressure in front of it (a condition known as the cracking pressure), the valve opens and permits the flow of the contained fluid in the chosen direction. Dominican Republic They can be found in almost every pump, whether for industrial or household use. Now, when you want to divert water or turn on your waterfall, all you have to do is push a button. Puerto Rico The future is here today. In some cases, the symbol will also let you know what type of check valve is at work there. AISI 304L If you need to better regulate the flow of water to your pool filter, you will want a type that will work as a pool check valve. Valves are the gatekeepers of water that move it in and out of your pool while also moving it through your pool accessories so that every component is doing its job to the fullest. Swing check valves are used in many places, including sewage systems, water treatment plants, and household plumbing. Tanzania WHERE CAN I FIND THE BEST ELECTRIC ACTUATED BUTTERFLY VALVE MANUFACTURER IN THE USA. Burundi These flow check valves can be forced to open or close regardless of the pressure differential. Liechtenstein They differ only in how they are manufactured and in the applications for which they are used. Italy On the outside of pipes or tubes that contain a check valve, you will find a symbol alerting you to its presence. When pressure is applied, the disk pivots to open, allowing the medium to flow through freely. Tilting disk check valvesconsist of a disk that is mounted to a central pivot point. Butterfly check valves consist of two flaps positioned to revolve around a central hinge. So put on your red jumpsuit, hat, and oversized gloves because today were playing Mario and getting to know all about pool valves and pipes. Ghana Required fields are marked *, Valve Category (*) United Kingdom Ukraine Cayman Islands Saudi Arabia Gibraltar North Korea Poland If you have a fountain, waterfall, aerator, or any other water feature installed in your pool, there are two possible sources for where the water comes from. Burkina Faso It must work with water but does not need to create a complete seal. Choosing the right check valve may seem like a daunting task, but it doesnt have to be. In other cases, check valves are used to prevent contamination. Stop check valves are similar to piston or ball check valves except that they can be controlled. Faroe Islands The most important factors to consider when looking at the cost of your replacement check valve are whether it will accomplish the task for which you need it and whether the materials of which it is made will stand up to the rigors of the task for which it has been selected. Check valves that have a lot of debris passing through them will likely wear out faster than those stopping the backflow of clean water or air. Backflow in these long, sealed pipes could cause pressure to build up within them, damage seals and joints along the pipeline, and lead to an explosion. Slovakia A tiny check valve with micro-resistance designed to stop the backflow of coolant in a refrigerator will cost a lot less than one used in a massive bilge pump on a luxury liner. Falkland Islands (Pros, Cons, Ideas & Cost), How To Lower Alkalinity In Your Pool (2 Proven Methods). Azerbaijan Bolivia Luxembourg EPDM Northern Mariana Islands Always go slowly when opening and closing these types of valves. Chad The technical term for these are Butterfly valves because they can flap open and closed. Reunion Carbon Steel (WCB), Seat Material Cook Islands When pressure is applied, these flaps rotate on the hinge to open; when the pressure is relieved, they rotate back. American Samoa A complete understanding of the different types of check valves and the applications for which they are suited is necessary for those who work in plumbing, HVAC installation and repair, machinists, auto mechanics, the DIY-minded homeowner, and many others. The term automatic chlorinator encompasses things like salt chlorine generators as well. As the name implies, dual plate check valves, also known as silent check valves, use two plates instead of one to prevent backflow. Lets look at the pool accessories that require the use of these one-way wonders. When the pressure builds, the ball is lifted, and liquids can pass through the valve. Guam Gabon Guadeloupe Tajikistan If all of those functions werent enough, multiport valves actually have a winter setting too! Pitcairn Islands Turks And Caicos Islands Now that you know, you can keep an eye on all of your valves and replace the worn-out ones when the time comes. French Guyana Cambodia Malaysia Syria Instead of opening to allow the flow of liquids or gases, this type of valve is used to suction air or liquids out of a closed system. More importantly, why should you care about any of this? Grenada Monaco They are the last bastion of protection against rebellious water that may try to flow in the wrong direction. Think of it as a big flap. I would like to join the mailing list to receive updates from Adamant Valves. Mozambique Large or small, they all work in the same fundamental way. Bhutan As you open it, the flap shifts sideways and unblocks the pipe. These types of full flow check valves are used most often with dry substances, like grains or animal feed, or for airflow regulation. But why would you want to do that? Why spend half your day walking from pipe to pipe, twisting levers and opening and closing valves when you could set it and forget it? What are pool valves and what do they do? You are no longer a pool valve novice. Maldives Sudan They consist of a disk and a hinge. This is where check valves really shine. Finland A less expensive check valve that you have to replace in a few years may not be as cost-effective as a more expensive one that will last substantially longer. The most familiar swing check valve is the one found in every toilet to allow the tank to fill without overfilling. In Which Fields are Pneumatic Ball Valves Mainly Used and What are the Main Features? Armenia Georgia It is used in many of the same applications as the piston valve, but it is better suited to thicker, heavier liquids. Togo South Africa Vacuum check valves work in an opposite fashion to most check valves. New Zealand To protect your sparkly, clean pool from this terrible end we have check valves. (7 Likely Reasons), Considering a Pool Waterfall? Heard Island and Mcdonald Islands Check valves are used in pumps to prevent the return of liquids to areas that are being drained or emptied and in air conditioners to ensure that the coolant circulates completely. All you need is to understand what your check valve is required to do and for what medium you need inline check valve backflow prevention, and you narrow your choices significantly. Spratly Islands San Marino Jordan Rough edges, cracks, and crevices are not permitted. Lebanon For some systems, the check valve is necessary to prevent a buildup of pressure within the system. Cocos (Keeling) Islands Libya Saint Lucia Tokelau poolonomics.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. What about the skimmers and returns? Namibia Belarus Latvia Bouvet Island They are designed to allow gases and liquids to flow easily in one direction but not at all in the opposite direction. Backflow would not only lead to pressure buildup but would bring clean media into contact with unsanitized media. Marshall Islands Bahrain Piston check valves, or lift valves, consisting of a disk that is fitted into grooves in the pipe and, sometimes, a spring. Safe for use as fuel line check valves, these are often installed as safety measures at gas stations, and in oil rigs and fuel pipelines. Trinidad and Tobago It works the same way, but there is one inlet and two outlets and the flap that blocks the water is a bit more complicated. Norfolk Island Moldova Pretty easy right? Comoros Theres also a 3-way flavor of diverter valve. Algeria Netherlands Catastrophe, right? When the pressure behind the valve lessens, the valve closes to prevent what has already passed through it from flowing backward in the wrong direction. AV-2CT Sanitary Titanium Clamp Ball Valve T5, AV-2TPV Sanitary Titanium Pneumatic Ball Valve, AV-2TPB Sanitary Titanium 5 Piece Ball Valve, used anywhere backflow prevention is required, Check valves are a critical part of many systems. Gambia Hungary Bermuda Norway Which valves can be changed and which have only one function? This can be seen in their use in wastewater treatment plants and dairies. Suriname Montserrat Iraq-Saudi Arabia Neutral Zone Nauru Iceland (Simply Explained), What Causes High Alkalinity in a Pool? Anguilla Macedonia Cape Verde Uzbekistan Qatar *: e-mail address with your company's domain name is preferred. Hong Kong When starting your pool valve scavenger hunt, the first place to search for a multiport valve is on the pool filter. From automatic chlorinators to pool heaters to water features, there are a lot of automated devices powering your pool. Uganda (I bet theyd be pretty jealous.). If you are handy with car repairs and are looking to fix or replace the braking system on your vehicle, then a vacuum check valve is what you need. Botswana Antigua and Barbuda Swaziland When the pressure drops, the spring uncoils, and the disk rapidly falls into place to create a seal again. Vietnam Aruba Portugal United Arab Emirates In this case, a ball or piston check valve may work best. Also, sanitary check valves will need to be replaced more often due to the damage done by frequent sanitation. US Virgin Islands Papua New Guinea If your pool has one of these, youll definitely need to add a check valve as the last stop on the chlorinator express. Czech Republic As you can see there are a lot of moving parts going on here. This guide will explain how check valves work, identify the different types of check valves, and describe some of their more common uses. Western Sahara Check valves, also known as non-return or one-way valves are installed in plumbing to prevent the backflow of water, usually due to gravity. Bulgaria Cameroon The 3-way diverter valve can be open and closed stop water completely, allow water through 1 of the 2 outlets, or allow water through both outlets. Federated States of Micronesia Check valves may be tiny, like those used in HVAC or refrigeration applications, or immense, like those used in water or fuel processing plants. It stands to reason then, that your valves could be automated too! Mayotte Sao Tome and Principe Belgium When the pressure drops, the disk swings closed again. You wouldnt want the water going the wrong way through the filter, right? AISI 316L Niger Sierra Leone Ecuador WHAT IS THE DIFFERENCE BETWEEN SANITARY FITTINGS AND FIXTURES? They usually have a big lever on top that you twist open and closed. How often a check valve should be replaced is determined by how much wear and tear it receives. Guyana Guinea-Bissau When your pump is turned off, though, all of that water is just going to go splashing back down thanks to the laws of physics. Myanmar Cuba Somalia A swing check valve may be your best choice in this case. Plumbing check valves are used in homes and businesses to ensure that sewage does not flow back into drains and toilets. How much a replacement check valve costs depends on many factors. Honduras Andorra If, however, your water source is a reservoir, youll need to add a check valve to keep the water from draining into the pool when the feature is turned off. Switzerland The symbol will have an arrow to let you know which way the medium contained in the pipe should be flowing. Kiribati They serve one purpose: to keep fluids and gases flowing in only one direction within a system. Solomon Islands Feel free to skip over this part if you have a regular heat pump or pool heater since those use diverter valves, which weve already talked about. When the pressure behind the disk builds up, the disk swings open on the hinge and allows liquid to flow through. Niue When its closed, the flap completely blocks the pipe and stops all the water flow. Democratic Republic of Congo Pool valves come in all shapes and sizes to perform their different operations. In order to better know your pool valves, lets take a look at the variety of types you might encounter. Pool valves, like any other type of pool equipment, do not last forever. Venezuela Albania Singapore Nepal Guinea Check valves are a critical part of many systems. 1 Inch0.5 Inch0.75 Inch1.5 Inch2 Inch2.5 Inch3 Inch3.5 Inch4 InchOther, Body Material Zambia Your email address will not be published. Uruguay When pressure builds up under the disk, it is forced upward, coiling the spring. British Virgin Islands Zimbabwe. Sri Lanka Flocculants are used to clear cloudy pool water and need to be moved around your pool without being filtered out. They consist of two plates mounted on a central hinge and a spring. Costa Rica Central African Republic In these cases, the water or milk flowing through the pipes is purified as it travels along the pipe. They do not usually create a tight seal, so they are not recommended for applications where contamination is a potential problem. Sump pumps or bilge pumps are prime examples. Check valves are remarkably simple and ingenious in their function. Mexico Egypt Congo Tuvalu Christmas Island AISI 316 Djibouti Because there are so many uses for the check valve, there are a great many types available. As the name implies, sanitary check valves are used in applications that require high levels of sanitation, like pharmaceutical processing plants, dairies, and other food processing plants. Fiji It is made using only non-porous materials that can stand up to the rigors of regular heat or chemical sanitizing. Russia Your email address will not be published. Which is Better, Gate Valves or Ball Valves? Solar pool heaters work by warming the pool water in the toasty rays of the sun, usually positioned on your roof for optimum coverage. Palau South Georgia and South Sandwich Islands Wallis and Futuna Indonesia When using a flocculant, of course. Saint Pierre and Miquelon Check valves, also known as non-return valves and one-way valves, are simple devices. If you have an air conditioner to repair, then an air compressor check valve should be on your shopping list. Mali When pressure is applied, the disks are forced open, and because of the springs, they close as soon as the pressure is reduced, without having to wait for backflow pressure to force them closed. Phew! Philippines Slovenia Lift check valve is simply another name for the piston check valve. Palestinian Territories Jamaica Saint Vincent and the Grenadines If you slam the valve closed, all the water pressure will hit your valve and could cause damage to your pipes if the pressure is high enough. Mauritius Nigeria Montenegro Think about the chaos that would ensue if that highly-chlorinated water accidentally flowed back into your pool equipment, rather than your pool. Its amazing how such small, seemingly insignificant plumbing components can have such a dramatic effect on the health and functioning of your pool. Saint Kitts and Nevis Denmark British Indian Ocean Territory French Polynesia Sanitary Butterfly ValvesOther ValvesSanitary Ball ValvesSanitary Diaphragm ValvesSanitary Shutoff And Diverter ValvesSanitary Sample Valves, Size (*) Panama All sanitary valves must be made to facilitate clean-in-place procedures, meaning they can be cleaned effectively without being disassembled or removed from the pipeline. Bosnia and Herzegovina Which valve leads to the pool heater? Check valves have many vital applications in both residential and industrial settings. China These pathways are important to familiarize yourself with so you know how each part of the system connects to the others. The one-way check valve uses a pressure differential to open and close the valve when necessary. The circulation of water in your pool is the number one way we keep our pools healthy, clean, and free of debris. Chile United States Minor Outlying Islands Once youve installed the valve actuators where you need them to go, these can be wired to a pool control box with a panel of buttons. Yemen If thats the case, youre not going to need a check valve for this particular function. Germany Multiport valves also offer an option to keep your pool water circulating without filtering it too. Angola Bahamas The cost of replacing a check valve also varies a great deal. Kazakhstan Taiwan South Korea They are frequently found in home applications, like heaters and air conditioners, because they open and close quietly. Youve graduated to pool valve authority and can tell everyone about your newfound knowledge at your next poolside barbeque. AISI 304 Thats right, it can be done with little contraptions called valve actuators. If there is liquid or gas flowing, there is likely to be a check valve somewhere in the system. The pool drain? Thats a 2-way valve that youve probably seen by your own pool system. Canada Paraguay Without water check valves, the water would flow right back into the area that requires draining. Vanuatu France Vatican City Aland Islands Kenya Depending on the type of pool equipment you use, you may have a couple of check valves in your system or you may have a dozen. Australia East Timor Ill tell you why. Turkmenistan Now that youve discovered the importance of pool valves to your systems internal plumbing, you can start checking your valves periodically and replacing them when theyve grown old, brittle, or worn. When the pressure drops, the ball drops back into its spot, recreating a seal. Estonia Macau RTFE India Martinique Otherwise, we may not be able to process your inquiry. Ireland Kuwait Sanitary check valves work in precisely the same way as regular check valves. Japan Madagascar Greenland Your pool filter, heater, and other accessories were not meant to handle that kind of heavy dose of chlorine. Thailand Croatia These devices chlorinate your pool as the last stop the water makes as it moves through your filtration and circulation system, pumping super-concentrated chlorine into the water at the last second to sanitize your pool. A sanitary check valve is manufactured in a way that makes it easy to clean and sterilize. French Southern Territories FPM (Viton) Svalbard and Jan Mayen Afghanistan No, theres not a lepidopterarium (its a real word) or butterfly sanctuary, in the valve. Malawi The size and type play a part as do the materials used in its construction. Kyrgyzstan Oman Netherlands Antilles Senegal Cyprus Antarctica Barbados Swimming pool check valves are used to keep the water flowing through the pool filtering system, maintaining water cleanliness and safety for swimmers using the pool.