As mentioned above, double check valves are commonly used in commercial dishwashers. But this isn’t the only place you’ll find them frequently employed in industrial and commercial settings. In these environments, protecting a clean water supply is essential for public health and safety. Therefore, double check valves are used in food and beverage industries, chemical processing plants and manufacturing facilities.

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Double check valves work as a type of backflow preventer that consists of two independent spring-loaded check valves within a single body. Usually, these check valves are installed in series, which means that if one valve were to fail (for whatever reason) then the second valve can act as a backup and prevent backflow.

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Double check valves are usually two single check valves that are linked together to provide a failsafe backup to one of the check valves failing. Double check valves have screws on each side making the valve port accessible so it can be opened and cleaned as typically debris can build up over time.

Quickly and efficiently clean and sterilize racks of dishes, glassware, pots and pans, and utensils with the Hobart Stero SD3-2 Door-Type Dishwasher with Built-In Booster Heater.

Therefore, double check valves are essential to help businesses meet regulatory compliance and effectively prevent backflow and preserve water quality.

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In this article, we will look at double check valves in more detail and answer any questions you may have such as, ‘what is a double check valve’ and ‘what does a double check valve do’. While also looking at the main uses and purposes of double check valves, we will take a closer view of some of the options available here at Fluid Controls.

Due to how significant a role double check valves play in ensuring water safety and quality, in many countries, including the UK, there are strict regulations and standards in place. Often double check valves are required by law for use in specific applications, such as during the protection of potable water systems.

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As we’ve already discussed, double check valves are used mostly for backflow prevention but there are also some other main purposes and uses that we will explore below.

Double check valves, which may sometimes also be referred to as double-check backflow preventers, is a device that has been designed to prevent the backflow of contaminated water. It also works with other undesirable substances to prevent them from entering a clean water supply.

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When it comes to fluid control and plumbing, precision is paramount. In fact, without it, you can’t guarantee a product will perform and function as you’d like. Precision is especially important with systems that deal with chemicals, water or any other liquid substances. This is where double check valves come in as they are indispensable components that safeguard against contamination and backflow within systems.

This powerful and energy efficient door-type dishwasher uses only 0.85 gallons of water per rack and has the ability to clean 58 racks per hour. Three timed wash cycles of 1, 2, or 4 minutes help give you the most effective clean. An 8.5 kW built-in booster heater ensures minimum temperatures of 180°F for the final rinse cycle.

This door-type warewasher is constructed out of stainless steel and features interchangeable upper and lower wash and rinse arms. It’s equipped with clear digital controls that let you select between cycle lengths as well as deliver error notifications in case of a problem.

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Fluid Controls is a trusted supplier of fluid control solutions in the UK, offering a wide range of high-quality double check valves that meet the requirements and needs of various industries. We also have an extensive range of fluid control products for industrial applications, from compressed air and pneumatic systems to pressure control valves.

The primary function of double check valves is to prevent the reversal of flow in a water supply system. Backflow can occur when water pressure suddenly drops or when there is a cross-connection between a clean water supply and a potentially contaminated source. An example of this is an irrigation system or a chemical tank.

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Another main use of double check valves comes from its versatility. They are versatile components that are suitable for a wide range of applications. They’re commonly used in both residential and commercial settings which makes them popular choices. Some of the most common uses of double check valves include boilers, lawn irrigation systems and commercial dishwashers.

Another common use of double check valves includes heating systems and boiler applications. Here, they’re essential to prevent the backflow of heating chemicals or contaminants in the potable water supply. This is a particularly crucial usage when maintaining the safety of heating systems in our homes and commercial buildings.

Nella Cutlery have been serving Canada's food industry since 1951. We import, manufacture, and distribute a full line of restaurant equipment and supplies used in supermarkets, delis, convenience stores, restaurants, schools, casinos and more. We carry many top brands and thousands of products available for purchase online or at our stores. Pickup or delivery, our goal is to provide customers with ease and convenience. Feel free to contact us via phone, live chat, or email our friendly staff are always happy to help!

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Find out more about the products we have available by getting in touch with our contact sales office at 0118 970 2060 or email fluid@fluidcontrols.co.uk.

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So we know that double check valves are mostly used for backflow prevention. But what does that mean and how does it work?

Cleans 58-63 racks/hour using only 4.04L of water per rack Automatic tank fill Single 57 second wash cycle 17.25" vertical chamber clearance 70°F...

Now that we’ve covered the main questions of ‘what is a double check valve’ and ‘what does a double check valve do’, you need to know where to get double check values.

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The Spence Type ED pressure regulator is designed to reduce a steady or varying initial pressure to a constant, adjustable delivery pressure.

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The dishwasher has a large 17-inch door opening to accommodate a variety of dishes and cookware including large pots and pans.

Therefore, by having double check valves in place, they act as a robust barrier against backflow and can ensure that even if one were to fail the other could ensure that the water supply remains safe to use and offers contamination control.

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Cleans 58-63 racks/hour using only 4.04L of water per rack Automatic tank fill Single 57 second wash cycle 17.25" vertical chamber clearance 70°F...