Introduction To The Improvement Work Of Sanitary Butterfly Valve

Improvement work introduction of Sanitary Butterfly Valve

The rubber ring is outsourced for production at designated locations, and quality control is strengthened. It is usually used for valves in the water supply industry. EPDM and NBR are selected, while natural rubber is not used much. It is strictly forbidden to mix with recycled rubber; the whole pressure plate of the sealing rubber ring on the butterfly plate is changed to a short dovetail assembly connection, and the household self-priming pump adjusts the extrusion degree of the pressure plate in each part to balance the service life of the sanitary butterfly valve, but this adjustment technique is also difficult to master;

DB sanitary butterfly valves and flange sanitary butterfly valves, their sealing rubber rings are embedded in the dovetail groove, and there is some activity margin, which can adjust the extrusion of the rubber ring when the sanitary butterfly valve is closed;

Introducing metal-sealed sanitary butterfly valves to replace rubber ring-sealed sanitary butterfly valves. Metal-sealed sanitary butterfly valves generally use eccentric structures due to the low elasticity of the seal, especially the three-dimensional eccentric structure is more ideal. Metal-sealed sanitary butterfly valves were originally used on high-pressure steam pipelines, and the price is relatively expensive. Its sealing surface is not easily damaged during operation, but its manufacturing precision requirements are relatively high, and it is difficult to repair once it leaks.