butterfly valve may include a pressure-tight resilient seat and an angularly offset disc. butterfly valve designs use a hard seat and an O-ring or piston ring around the disk to seal.Butterfly valves range in size from small to enormous, and are well suited for large flows of gases, liquids, or slurries, offer a number of advantages when used for the proper application. They may be used in a wide variety of chemical services, they are available with small dimensions allowing for use in areas where space is limited, and they allow a high coefficient of flow.
Conversely, the design of butterfly valve creates the disadvantage of not being easy to clean, and therefore should be avoided in situations that call for sterile, medical or food processing applications.
Additionally, some styles may have difficulty dispensing slurries.
1 条评论:
Nowadays the industrial valves used widely in all kinds of fields are metal valves. although the metal valve has a history with husbands of years and its structure and material is improved all the time, this valve now can not satisfy the requirement of high abrasion-proofness and high corrosion-proofness owing to the restriction of the metal material's own property. The present industrial valves are short in usage life and also have a great negative effect on the stability of the system operation.
发表评论