• Dutco Tennant LLC, PO Box 233, Dubai, U.A.E.

Dutco Tennant LLC has been a leading supplier for a wide range of industrial and engineering solutions for all types of industries from construction to networking to electrical for around four decades. Dutco Tennant LLC supplies products to a high-status list of corporate and government sector for various projects and has made the contribution behind the creation of world-class private and public infrastructures such as water and wastewater projects, airports, exhibition centers, shopping malls, networking infrastructure, hospitals, hotels, universities and offices around the Middle East and GCC region.

A plumbing double check valve is a back flow presenter that has been designed for protecting the sources of water from getting contaminated. Also, it is a valve which is used mostly in compressed air braking systems of heavy trucks. It comprises of two non-return valves that are series connected. Two principles of operation are used by this: firstly, the check valve will always act, even if the other one is blocked in the open position, secondly the pressure differential across the other reduces when one valve is closed, and this allows for a much more reliable seal and prevent the minor leaks. Barely, the small valve is noticeable, mainly when it is integrated into existing valve bodies. With end ball valves for testing and insulation, larger plumbing double check valves can be installed. The test valves are often in place for attaching the test equipment for assess whether the double check assembly is still in operation. For the prevention of siphoning and back pressure, the double check valve is suitable but for high-risk applications, it is not suitable. Commonly for lawn fire sprinklers, irrigation systems and mixed boilers it is used. A relatively low risk like the use of antifreeze in the sprinkler system, if the hazard is much higher, even a much more reliable sanitary check valve like a reduced pressure zone device is mandatory.

Backflow is the reversal of the flow of a liquid, gas, or solid into the clean or potable water supply. Backflow happens due to back pressure or due to the back siphoning of the plumbing system. If the water is pure, backflow is not a serious concern. But if the water is contaminated and contains chemicals and harmful bacteria, backflow can pose serious health and safety hazards.

A backflow preventer is quite effective in preventing this. It helps protect potable water supplies from contamination or pollution due to backflow. A backflow preventer though simple in design is ingenious in its working.

Preventing backflow is essential and your first line of defense is to install a backflow preventer.

If you are in search of Plumbing Double Check Valves in the Middle East, then get the most advanced and reliable options from Dutco Tennant LLC.

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