There are three types of wastewater or sewage: domestic sewage, industrial sewage, and storm sewage. Sewage treatment is designed to treat and treat raw sewage at different steps, including crushing, filtration, sedimentation, controlled aerobic decomposition and chemical treatment.
Modern sewage treatment technology can be divided into primary treatment, secondary treatment and tertiary treatment according to the degree of treatment. Generally speaking, the degree of sewage treatment can be determined according to the water quality and the flow direction of the treated water. The valves used in each stage are different.
Let me introduce the valves that COVNA valve can use in wastewater treatment systems
Pneumatic Butterfly Valve
The butterfly plate of the pneumatic butterfly valve is installed in the diameter direction of the pipeline. The butterfly valve is simple in structure, small in size and light in weight, and only consists of a few parts. And it only needs to rotate 90° to open and close quickly, and the operation is simple. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the resistance generated by the valve is very small, so it has better flow control characteristics and can be used for adjustment. One of the most used valves in sewage treatment projects. According to the opening method, it can be divided into handle butterfly valve and worm gear butterfly valve.
Advantages:
● Simple structure, small size, light weight, less consumables, do not use in large-diameter valves
● Quick opening and closing, small flow resistance
● It can be used for media with suspended solid particles, and can also be used for media with suspended solid particles, depending on the strength of the sealing surface. Powdered and granular media.
Electric ball valve
The ball valve is evolved from the plug valve. It has the same action of rotating 90 degrees, except that the cock body is a sphere with a circular through hole or channel through its axis. When the ball rotates 90 degrees, it should be spherical at the inlet and outlet, so as to cut off the flow. Such a design is very suitable for sewage treatment. Electric pvc ball valves, electric stainless steel ball valves, etc. are often used.
If you are engaged in the sewage treatment industry or are interested in sewage treatment valves, you can contact us for more professional sewage treatment automation solutions
Post time: Sep-19-2023