Butterfly valve seal ring
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Are there any standard specifications for the sealing rings in butterfly valves? If available, thank you in advance. For example, for a valve with an inner diameter of 400 mm and a pressure of 0.6 MPa, what specification is the sealing ring used?
There are no standard specifications for butterfly valve seals, and those offered by different manufacturers generally vary
This post was last edited by swliu2006 on 2017-3-5 at 19:15. Nowadays, butterfly valves all follow enterprise standards; there is no **standard**. Butterfly valves with the same diameter and pressure can have different thicknesses. If you need to repair a butterfly valve, it’s best to obtain spare parts from the original manufacturer; when ordering a new one, simply provide them with the DN, PN, and δ values.
The best way is to ask the original manufacturer!