Wafer vs Lug Butterfly Valves: Differences & Uses

Compare wafer and lug butterfly valves by body design, installation method, pipeline isolation, end-of-line capability, maintenance flexibility, weight, and cost. Wafer butterfly valves provide a lightweight and economical solution for HVAC, water treatment, and general low- to medium-pressure systems, while lug butterfly valves allow one-sided pipeline disconnection and end-of-line service for industrial systems requiring easier maintenance and isolation.