Our diverse range of flange butterfly valves covers large‑bore sizes from DN300 to DN1000. Valve bodies are available in carbon steel and cast iron. Multiple actuation versions including manual, electric and pneumatic configurations are offered to satisfy varied operating requirements. These industrial valves serve as vital equipment for pipeline shut‑off and throttling regulation, and they are widely deployed in water supply and drainage systems, municipal infrastructure, wastewater treatment plants, thermal power stations, chemical processing facilities and other fluid piping systems for global overseas projects.

Center‑line flange butterfly valves are widely selected across different industrial projects thanks to comprehensive performance merits. Compared with gate valves and globe valves of identical nominal diameter, this valve series comes with shorter face‑to‑face dimension and lighter overall weight. It lowers load stress on pipeline support structures and cuts material as well as labor expenses during on‑site installation. Standard flange interfaces deliver outstanding universal compatibility. Disassembly and routine maintenance can be completed conveniently. Valve inspection and replacement will not trigger large‑scale pipe modification, which significantly shortens equipment downtime and reduces long‑term operational costs for projects.

This valve series is equipped with remarkable technical features. Benefiting from center‑line structural layout, the disc runs in centered position throughout opening and closing strokes. Operating torque stays low so manual manipulation can be finished effortlessly. Fitted with electric or pneumatic actuators, the valves support remote automatic management, perfectly suiting smart factory infrastructure and unattended operation conditions. Carbon steel valve bodies possess strong impact resistance and high pressure‑bearing capacity for harsh industrial working conditions. Cast iron valve bodies demonstrate favorable anti‑corrosion properties and fit municipal water‑medium applications. Rubber sealing components obtain even compression force to achieve reliable tight shut‑off and zero‑leakage performance under low‑pressure service. Complete size spectrum ranging from DN300 to DN1000 supports bulk‑quantity order delivery to meet centralized procurement demands from large‑scale overseas projects.

Distinct practical advantages can be reflected in real‑world applications. When fully open, the internal flow passage remains unobstructed with minimum fluid resistance. Medium pressure loss is kept at a low level, which helps end‑users cut energy consumption of the whole fluid circulation system. Flexible actuation options accommodate various site environments. Manual and electric actuators are ideal for sites without compressed‑air supply, while pneumatic actuators are preferred for automated process pipelines. Manufactured in compliance with internationally recognized flange standards, the valves require no pipe rework during overseas field installation. Every single unit undergoes pressure and sealing tests prior to shipment. Pre‑delivery quality control effectively mitigates potential breakdown risks at project sites.

For overseas EPC contractors, system integrators and international trading partners, our versatile flange butterfly valves deliver balanced value among competitive cost, stable performance and dependable bulk‑order delivery capability. They constitute a highly cost‑effective solution for flow shut‑off and modulation within large‑diameter industrial pipelines. Procurement teams can adopt this single product series to cover multiple working scenarios, simplify spare‑parts inventory administration and optimize end‑to‑end supply‑chain procedures. Whether your project concerns new municipal water construction, wastewater pipeline upgrading or heavy‑industry process piping setup, our diversified flange butterfly valves can match both your technical specifications and commercial objectives.