Manual Wafer Type Butterfly Valve

ALIS Valves offers Manual Wafer Type Butterfly Valves designed for efficient 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 wafer-style body fits between two compatible pipeline flanges and is secured using suitable bolting arrangements, providing a compact and space-saving installation. Manual operation is typically provided through a lever handle for smaller sizes or a gearbox and handwheel for larger valves or applications requiring greater operating torque. Depending on the application, these valves are available with cast iron, ductile iron, carbon steel or stainless steel body options, along with suitable disc, seat and sealing materials to meet the specified pressure, temperature and media requirements.

Manual Wafer Type Butterfly Valves are commonly used in water treatment plants, wastewater systems, HVAC installations, industrial utilities, chemical processing and general fluid handling applications. Depending on the valve construction and material selection, they can handle compatible liquids and gases within their rated operating limits. Important selection factors include valve size, flange compatibility, pressure rating, operating temperature, process media, disc and seat materials, and required leakage performance. Buyers should also consider the operating method, available installation space and whether the valve is intended for isolation or throttling service. Proper alignment between the valve and pipeline flanges is essential to prevent damage to the disc or seat during installation. Selecting the appropriate manual wafer type butterfly valve helps provide compact installation, convenient operation, reliable shut-off and efficient flow control in compatible industrial systems.