Rubber check valves are a simple, passive, and cost-effective solution to backflow problems. They offer the same advantages as flap and slat check valves, but without any mechanical wear and tear. They are a great option for wastewater treatment applications, and for outfalls and tidal operations. This type of check valve is also ideal for high flow applications.
There are a variety of different materials and design options available for this type of check valve. It is important to select the proper material for your application, and to choose a valve that will last.
Many of the newer models of check valves are designed with a unique structure that allows them to withstand corrosive liquids. This gives them a significant advantage over traditional austinic steel check valves. These valves are able to handle fluids that range from -65 F to 400 F. They can also handle raw sewage, saltwater, and more.
The Proco 700 series of ProFlex Rubber Check Valves are ideal for harsh fluids. They can also be installed in stormwater piping systems. These valves are specially designed to operate in the presence of extreme conditions.
In addition to being durable, these check valves are quiet. Unlike flap and slat check valves, they are completely independent of the hinges. This allows them to be installed at a variety of angles. They also feature a reinforced nitrile jacket.
The Duplex and Superduplex structures of the second generation give improved corrosion resistance. These are made of a 50/50 ferrite/austenite composition. The newer versions of these check valves have also been introduced to the desalination market. These valves have a much larger advantage over standard austinic steel, and they are easier to produce.
In addition to being durable and resistant to abrasion, these valves are also resistant to cold temperatures. This means that they can be used in water tanks and other cold environments. They also are able to withstand freeze-ups and other abnormal conditions, which are often a concern when using other types of valves.
Some rubber check valves are even capable of working in ultraviolet radiation. They can be installed on non-circular pipes, and they can withstand high flow applications. They are available in sizes from 1 to 96. They are typically installed vertically.
Regardless of the duckbill check valve type of material you use for your check valve, it is a good idea to replace it regularly. They should be replaced every 5-7 years. They are a vital part of your system, and they must be able to withstand the pressures and temperatures involved in your application. If your valve is improperly rated, it could stick in the open position. It can also lead to a dangerous water hammer.
There are a variety of other considerations for choosing the right check valve. These include the type of installation, the connection type, and the line size. The best valves are low-maintenance, quiet, and dependable. They can withstand a variety of media, and they can help you prevent the onset of backflow.