Valve reverse wafer: what is worth knowing?
The reverse flapper valve is aThe type of device that is connected to the pipeline by means of an interflange or flange connection. The nominal diameter passage for it can vary between 15-400 millimeters.
The reverse wafer valve is intended forprevention of reverse flows of the internal environment in the pipe, as well as hydraulic hammers. It does not represent a stop valve. On the structural device, it can be pivoting, lifting, ball or spring. Wafer type check valve is usually characterized by the feature of penetration of the working medium in only one direction, and for its fastening a flange connection is used. The flange is the connecting part of the pipeline, which is a frame or a disk equipped with bolt holes. The flange is used to connect pipelines with valves, in addition, it can be part of a closure, fitting or pipe. The return flap valve is intended for installation on pipelines located horizontally, which prevents the formation of backflows in the internal environment. The armature of this type is a regulating mechanism. This species may well become a substitute for various valves, ball valves, as well as locking cranes.
This type of valve can be made froma wide range of materials, among which the most popular are usually distinguished: cast iron, brass, steel, copper. This allows it to be used as a connecting part of pipelines at different pressures and temperatures, while its functioning remains at a sufficiently reliable level, regardless of the working medium.