Check valves are simple mechanical devices used to prevent the backflow of fluid, which can cause contamination and damage equipment. Other functions include maintaining a pressurized line, relieving pressure when inlet pressure reaches a desired level and minimizing the effects of water hammer across long stretches of piping.
You will get efficient and thoughtful service from Disai.
It&#;s important to choose a check valve that&#;s optimally sized for the application. An incorrectly sized valve can lead to premature wear or breakage, or the sealing mechanism can impede full and increase pressure loss.
There are several different types of check valves, including swing checks and sanitary checks that allow for a full port of opening, which minimizes pressure loss as well as the chance that debris will become stuck in the valve. Spring-loaded check valves are simple devices that use a spring to help seal the valve quickly or utilize spring tension to open the valve at a desired point.
Once you know the type of valve that&#;s required, you can select the right materials for your application. Primarily, check valve bodies are manufactured in bronze, stainless steel or plastic, but can be made using other materials as well. Seals are also available in a variety of materials. It&#;s important to select the correct body and seal materials for the type of fluid that will be flowing through the valve.
The next consideration is the size of check valve needed for your application. The function of a check valve is to impede the flow of fluid. The Cv, or Valve Flow Coefficient, is the measure of flow capability&#;how many gallons per minute will flow with a pressure loss of 1 psi. You will want to select a check valve size that maximizes flow and minimizes pressure loss. Pressure rating is also a consideration. Ensure the check valve selected has a maximum pressure rating that fits the application&#;s pressure.
If you have questions on how to select the right check valve for your application, contact the experts at Strataflo.
Although usually installed horizontally, they can also be placed vertically depending on the setup.
Selecting a Check Valve
The company is the world’s best Nozzle Check Valves supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.
The three main things to consider when selecting the check valve are the material viscosity, pressure, temperature and flow rate (or the volume of water that will flow through the valve per minute). This information will help you to choose the most suitable check valve for the job in terms of its design capabilities, ensuring efficient and reliable operations over the long term.
Check Valves for Clean/Potable Water
In potable water applications check valves ensure no external or backflowing materials can enter the system and contaminate the water - but they also need to be suitable for drinking water handling. Certification bodies such as WRAS can approve products for use in clean water applications, making sure your system is compliant with Water Supply Regulations.
The most suitable solutions for potable water applications are twin-plate (wafer) check valves, axial check valves and swing check valves.
Check Valves for Wastewater and Sewage
In these applications, the check valve will prevent materials from entering back into the system and causing an overflow or recontamination. The most suitable solutions for wastewater and sewage applications are swing or ball check valves, with Recoil check valves sometimes being used in demanding applications.
The T-T Flow team are on hand to provide expert advice in finding the most effective check valve for your application, for more help, contact T-T below by calling +44 (0) , emailing [ protected] or completing our online enquiry form.
Contact us to discuss your requirements of nozzle check valve manufacturers. Our experienced sales team can help you identify the options that best suit your needs.