The DN900 soft seal ductile iron lug butterfly valve is a high-performance control valve specially designed for large-diameter pipeline systems. It adopts ductile iron as the main body material, which has excellent mechanical properties, high strength, good toughness and corrosion resistance, and can adapt to various harsh working conditions. The soft seal structure (EPDM or NBR sealing ring) ensures zero leakage of the valve, effectively preventing medium loss and environmental pollution.

As a lug-type butterfly valve, it is equipped with lug flanges on both ends, which allows the valve to be installed and disassembled independently of the pipeline, greatly improving the convenience of maintenance and replacement. Compared with other large-diameter valves (such as gate valves), the valve has a compact structure, small volume and light weight, which significantly reduces the installation space and transportation cost. Its disc adopts a streamlined design, which can minimize the flow resistance when the valve is fully open, reduce energy consumption of the pipeline system, and is particularly suitable for large-flow medium transportation scenarios in DN900 large-diameter pipelines. Whether it is manual operation or automatic control (pneumatic, motorized), the valve can realize quick opening and closing, and the operation is stable and reliable, ensuring the smooth operation of the entire pipeline system.

In addition, the DN900 soft seal ductile iron lug butterfly valve is easy to maintain, with simple internal structure and few wearing parts. Regular inspection and replacement of the sealing ring can extend the service life of the valve, which is widely used in various fields such as water supply and drainage, petrochemical industry and heating systems.

Advantages of DN900 Soft Seal Ductile Iron Lug Butterfly Valve:

1. Excellent Sealing Performance:

Adopting high-quality EPDM or NBR soft sealing ring, combined with precise processing technology, the valve achieves zero leakage, which can effectively prevent the medium from leaking and avoid environmental pollution and economic loss. It is especially suitable for occasions with high sealing requirements such as clean water transportation and gas transmission.

2. Unique Lug Design & High Structural Reliability, Long Service Life:

The valve adopts an integrated lug structure, which is easy to install, disassemble and maintain, and can be independently fixed without relying on the pipeline flange, reducing the difficulty of maintenance and replacement. The valve body is made of ductile iron, which has higher strength and toughness than ordinary cast iron, strong impact resistance and wear resistance, and can withstand the pressure impact of DN900 large-diameter pipeline systems. The valve stem is made of stainless steel, which has good corrosion resistance and avoids rust and damage caused by medium erosion. The overall design is reasonable, which reduces the wear of parts during operation and extends the service life of the valve.

3. Energy-saving and Convenient Installation:

The streamlined disc design reduces the flow resistance coefficient, minimizes the energy consumption of the pipeline system when conveying medium in large-diameter pipelines, and achieves the effect of energy saving. At the same time, the valve has a compact structure, small volume and light weight compared with the same specification gate valves and globe valves, which is convenient for transportation and installation, saves installation space and reduces installation cost, especially suitable for large-diameter pipeline projects with limited installation space.

4. Flexible Operation and Easy Maintenance:

It supports multiple operation modes such as manual, gear, pneumatic and motorized, which can meet the needs of different working conditions (such as on-site operation, remote control, large torque operation) of DN900 pipeline systems. The internal structure of the valve is simple, the wearing parts are few, and the maintenance is convenient. The unique lug design further facilitates the disassembly and maintenance of the valve. Only regular inspection and replacement of the sealing ring and other vulnerable parts are needed to ensure the normal operation of the valve, which reduces the maintenance cost and workload.

Applicable Working Conditions of DN900 Soft Seal Ductile Iron Lug Butterfly Valve

The DN900 soft seal ductile iron lug butterfly valve is mainly suitable for DN900 large-diameter pipeline systems that require good sealing performance, small flow resistance, convenient installation and maintenance, and is widely used in various industrial and civil fields.

For example:

Water Plant and Sewage Treatment Plant:

In the water supply and drainage system, it is used to control the flow of clean water, raw water and sewage in DN900 large-diameter pipelines. The zero leakage performance prevents secondary pollution of water quality, and the small flow resistance is suitable for large-flow water transportation, which improves the efficiency of the water treatment system. The lug design facilitates the maintenance and replacement of the valve without stopping the entire water supply and drainage system.

Municipal Pipeline System:

Applied to municipal water supply, drainage, heating and gas pipelines with DN900 specifications. The compact structure adapts to the limited underground installation space, and the flexible operation mode is convenient for on-site and remote control, which ensures the stable operation of the municipal infrastructure. The lug structure is suitable for the frequent maintenance needs of municipal pipelines, reducing the impact of maintenance on urban operation.

Petrochemical and Light Industry:

Used to control the flow of light oil, chemical solvents and weak corrosive media in DN900 large-diameter pipelines. The corrosion-resistant material and good sealing performance avoid medium leakage and equipment damage, and adapt to the harsh working environment of the chemical industry. The stable operation performance ensures the safety and continuity of production.

Agricultural Irrigation and Water Conservancy Projects:

In large-scale agricultural irrigation systems and water conservancy projects, it is used to control the water flow of DN900 large-diameter irrigation pipelines. The convenient operation and energy-saving characteristics reduce the operation and maintenance cost of the irrigation system and improve the irrigation efficiency. The strong corrosion resistance and impact resistance can adapt to the harsh outdoor working environment of irrigation and water conservancy projects.