A rubber check valve is a passive device that is designed to prevent reverse flows. Its rubber diaphragm and duckbill design make it flexible and easy to maintain. However, you should also be aware of possible warning signs. These include excessive vibration or chattering of the check valve, and leakage of fluid. You can also listen to the flow of fluid to detect leaks.
Duckbill check valves
Duckbill check valves are widely used in a variety of applications. These valves have a simple design, which makes them easy to integrate into a variety of different devices. They also do not require complex assembly processes or surface finish on the mating seat. They are ideal for applications where they need to control water flow rates and prevent backflow.
Duckbill check valves can be installed on the inside or the outside of the pipe. Installing them requires access to the inside of the pipe, which is usually smaller than the outside diameter. The valves are available all across Australia.
Flexible rubber diaphragm
A diaphragm check valve is a type of valve with a flexing rubber diaphragm as the working part. The valve body is shaped to keep the rubber check valve diaphragm centered over the sealing surface, which is usually concave back towards the inlet port. When the pressure in a pipe or liquid exceeds the pressure in the outlet, the diaphragm closes, closing the opening. Once this positive pressure has been eliminated, the diaphragm will return to its original position.
The elastomer used to make these check valves determines their efficiency, quality, and life. It is important to choose the correct elastomer for a specific application.
Low maintenance
Low maintenance rubber check valves are a cost-effective alternative to flap-type check valves. They are ideal for applications that require backpressure control, such as sewage treatment plants, outfalls, and tidal operations. They are designed to be passive, meaning they don’t need external power or manual assistance to operate. Moreover, they don’t absorb vibration energy or thermal expansion.
While metal check valves may appear durable, they are not immune to corrosion, particularly in saltwater applications. Moreover, corrosive fluids like raw sewage can erode metal components. Hence, it is recommended to replace these valves after a few years of use.
Long service life
If you are using a check valve in a water pumping application, then the longevity of the valve’s service life is essential. Various factors need to be considered before determining the appropriate check valve. These factors include the line size, connection type, and special requirements. A detailed evaluation of all of these factors should be undertaken to ensure the best check valve for the application.
If you want a long service life for your rubber check valve, then you should buy a high-quality model. The quality of the valve will make a big difference in the performance of your system. Cheaper versions usually have a short lifespan.
Cost-effective
When you’re looking for a cost-effective rubber check valve, you have to consider its longevity. Check valves are often expensive, but you get what you pay for, so it’s important to buy one that will last for several years. The life of a check valve depends on the type of application it’s used in, but a high-quality one can last for 35-50 years.
One popular type of check valve is a rubber flapper valve. These valves have a smaller stroke than swing check valves, making them cost-effective and versatile. They also provide a quick and strong seal.