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A grooved butterfly valve is a type of pipeline control valve that regulates water flow—or shuts it off entirely—by rotating a disc (the butterfly plate) 90 degrees. The term "grooved" refers to the connection method at both ends, which utilizes mechanical couplings to clamp the valve in place; this allows for rapid installation and disassembly without the need for welding or extensive bolting, making it particularly well-suited for piping systems—such as fire protection and water supply/drainage networks—that require quick construction and ease of future maintenance. Designed to meet industry standards and offering excellent compatibility with mainstream coupling systems, these valves are widely used and highly favored in sectors including fire protection, HVAC, and industrial water distribution networks.

The Wafer Expansion Butterfly Valve is an advanced flow control device engineered for demanding operating conditions involving abrasive, powdery, or granular media. Its core feature is a pneumatically actuated, inflatable elastic seat: when the valve closes, the seat is inflated with a medium (air) to form a uniform, airtight (zero-leakage) seal against the valve disc; conversely, before the valve opens, the pressure is released, creating a clearance between the seat and the disc. This design ensures that components make contact only in the fully closed position, virtually eliminating friction and significantly extending the service life of both the seat and the disc. With its superior wear resistance, low maintenance requirements, and reliable bidirectional shut-off capabilities, this inflatable sealing design offers an ideal, cost-effective, and high-performance solution for challenging fluid control applications.

The ET VALVE Powder Flange Butterfly Valve, designed specifically for powder applications, effectively resolves issues such as face clogging, localized wear, and media leakage often encountered during the transport of dry powders and granules. The valve body is manufactured from lightweight, highly durable materials to prevent material contamination.Unlike conventional butterfly valves, this design fundamentally alters the movement trajectory of the disc relative to the valve body's center; it effectively prevents powder accumulation and contamination while ensuring long-term zero-leakage shutoff and precise flow control.The powder flange butterfly valve is a type of butterfly valve particularly well-suited for handling various powdery and granular materials in industrial applications.

The ET VALVE U-Type Backrest-Seated Butterfly Valve is a high-performance flow control valve designed for heavy-duty industrial piping systems. It operates by rotating an internal disc in conjunction with a U-section seat seal to open, close, or regulate fluid flow. A 90-degree turn enables quick opening and closing with rapid response. When fully open, the disc offers minimal resistance to fluid flow, ensuring superior energy efficiency.Its U-shaped valve body design facilitates centering and installation between flanges, making it an ideal alternative to standard wafer-style or lug-style butterfly valves.This valve is specifically designed to achieve bidirectional zero-leakage sealing, consistently maintaining reliable shut-off performance.

The ET VALVE Wafer-Type Full F4-Lined Split Body Butterfly Valve is an ideal solution for controlling highly corrosive media and fluids. Its two-piece split-body design facilitates easy seat replacement and routine maintenance. Both the valve body interior and the disc are encapsulated in a thick layer of high-density PTFE (or PFA), completely isolating metal components from the process medium; this ensures superior chemical corrosion resistance and prevents cross-contamination. Available in nominal sizes ranging from DN50 to DN300, the valve complies with various connection standards, including GB (PN10/PN16) and ANSI (Class 150).

The Lug-Type Backrest-Seated Butterfly Valve is a common type of butterfly valve, named for the ear-like connection structures (lugs) on both sides of its body. Flow is controlled by rotating the stem to turn the disc, thereby altering the disc's position relative to the flow path. The valve supports single-sided disassembly at the end of a pipeline and features ultra-low operating torque, condensation resistance, and a long service life. ETVALVE Lug-Type Backrest-Seated Butterfly Valves are available in sizes ranging from DN40 to DN1000 and pressure ratings of PN10, PN16, PN25, and 150LB, with a variety of body and seat material options.