Shipable shutters are extremely widely used. Their main purpose is to adjust the flow of the medium in the pipeline. In particular, a chimney can become such a pipeline, and the environment from the combustion of fuel can be the environment. Translated, a gate valve is a damper. Today, various types of gate shutters are used on almost all types of pipelines, as well as in ventilation systems, factory furnaces, water intake structures, and so on. Depending on the diameter of the pipeline, the diameter of the gate damper can be any, and often they are made to order for the purposes of a particular production or for a non -standard pipeline.
In the case when the gate damper is included with the fan, it is called launch. For air ducts, the gate shutters of two warrants of execution are used – with a round or with a rectangular section. Regardless of purpose, size and section, the principle of operation of the gate damper is very simple. There is a piece of the pipe of the desired diameter, and it provides a special pocket, inside which the damper is hidden at full opening. The damper itself is usually a flat metal sheet of various thicknesses. Structurally, the gate can be performed by straight or oblique. In the direct performance, the gate is overlapped by the damper perpendicular to its axis. In a braid – Shiber overlaps the flow at an angle of 45 degrees to its axis. Spray gategles are used in systems where in addition to regulation of the flow, it is required to clean it, and also the accuracy of adjustment is crucial. Due to the fact that the flap of the oblique gate is much larger, the accuracy of the flow adjustment can be extremely high. Thus, for example, the exact rate of air flow in the duct is established.
