lug wafer knife gate valve
Description
Knife gate valve is a commonly used valve type, its main characteristics are simple structure, small size, light weight, good sealing, corrosion resistance, flexible operation and other advantages, is widely used in various industrial fields, especially in mining, metallurgy, chemical industry, sewage treatment and other fields have been widely used.
Knife gate valve is also known as knife gate valve, knife gate valve, slurry valve, mud valve, its opening and closing parts are gate, the direction of motion of the gate is perpendicular to the direction of the fluid, by cutting fiber material blade shaped gate to cut off the medium, gate has two sealing surface, the most commonly used mode gate valve two sealing surface form wedge, wedge Angle varies with the valve parameters, Usually 5°, the gate plate of the wedge knife gate valve can be made into a whole, called the rigid gate plate; It can also be made to produce a micro deformation of the ram, in order to improve its processability, make up for the sealing surface Angle in the processing of the deviation, this ram is called elastic ram. The valve body does not actually have a chamber, the gate is raised and lowered in the side guide groove, and is pressed against the seat by the bottom lug. If high dielectric sealing is required, the O-seal seat can be used to achieve a two-way seal. Knife gate valve has a small installation space, low working pressure, not easy to accumulate debris, low price.
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