Pneumatic Lug Type Butterfly Valve

ALIS Valves offers Pneumatic Lug Type Butterfly Valves designed for automated flow isolation and control in industrial piping systems. These valves feature a circular disc mounted on a central shaft that rotates approximately 90 degrees to open or close the flow passage. The lug-style body includes threaded lugs around the valve perimeter, allowing installation between compatible pipeline flanges with suitable bolting arrangements. Depending on the design, the lug configuration may also support independent bolting to each side of the pipeline. A pneumatic actuator uses compressed air to operate the disc remotely, enabling integration with automated control panels and process control systems. These valves are available with suitable body, disc, seat and sealing materials, along with double-acting or spring-return actuators to meet specified operating requirements.

Pneumatic Lug Type Butterfly Valves are commonly used in water treatment, wastewater management, chemical processing, HVAC systems, power generation and other industrial fluid handling applications. Depending on the valve construction and material selection, they can handle compatible liquids and gases within their rated pressure and temperature limits. Important selection factors include valve size, lug and flange compatibility, pressure rating, operating temperature, process media, disc and seat materials, and required leakage performance. Buyers should also consider actuator torque, compressed air supply pressure, operating frequency, control arrangement and required fail-safe position. For installations where the valve may be exposed to pressure from one side only, the lug pattern and pressure rating must be verified for the intended service. Selecting the appropriate pneumatic lug type butterfly valve helps provide reliable automated operation, convenient maintenance access and effective flow isolation in compatible industrial systems.