Resilient-seated gate valves have been used for more than a quarter century. While there are perhaps many aspects to compare, I believe a few advantages of modern resilient-seated valvesForged Steel Valves for example over iron-body bronze mounted (IBBM) gate valves are: 1.Basically a clear and unobstructed waterway, that does not exhibit a bottom potentially debris-trapping "pocket" (like to receive the wedges that hit down in same and in various fashions spread e.g. IBBM disks). 2.Demonstrations that at least some resilient-seated gate valve designsHydraulic control valves will effectively seal (and even bottle-tight) against at least some significant foreign objects like Water Control valvesrocks and steel nails (that will generally thwart metal seals when trapped in the seat area). 3.At least some resilient-seated gate valve designs employ quite strong principal parts of ductile iron only, whereas Cast Gate, Globe, Check ValvesIBBM gate valves per some standards/designs still can contain weaker gray cast iron. While I believe "better" is something that should ultimately be defined by the users (including I would think Contractors, as Forged Gate, Globe, Check Valvesit appears is one party you're already conversing with, who sometimes are asked to even test against such valves), I believe there has been a dramatic relative increase in demand over many years for resilient-seated as opposed to IBBM valves, and particularly in common municipal fields.

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