Industry News

The butterfly valve commonly divided in to these two general types, Concentric is sealed by the rubber, according to the rubber type it can be suitable for many substances, like water, or some chemical. But it usually used in below PN 16. Eccentric butterfly valve include the double or triple eccentric/offsets, the disc achieves a “cam-like rotation” during opening and closing, completely eliminating frictional wear. Taking the triple offset structure as an example, the valve stem axis forms a compound angle with the sealing surface, ensuring zero leakage even under high temperature and high pressure conditions.

The article is talking about the features of ball valve

Cast steel butterfly valve: "Flow Switch" in Industrial pipelines

Core advantages: thin structure (30%~50% thinner than flange type) and with lightweight (weight reduction of 20%~40%) Necessary scenarios: it usually be used in space-constrained pipelines (equipment interlayer/renovation projects).