The Structural Value of Corrosion-Resistant Bonnets in Water Treatment Systems
In sewage treatment, desalination, water plant construction and other systems, the valve is in long-term contact with chlorine-containing and salt-containing medium, which puts forward higher requirements for the corrosion resistance and structural strength of the superstructure such as the valve cover.
Sichuan Yining Machinery supplies supporting bonnet products for a number of water system integrators, often using CF3, 2205 duplex steel and other materials, and processing and design for different pressure levels and installation forms. The matching accuracy with the valve body is controlled within ±0.02mm, and the sealing part is processed by mirror, and the PTFE packing structure is used to effectively reduce the risk of leakage.
Most of the bonnets we provide are used for manual gate valves, automatic ball valves, exhaust valves, etc., and can be adapted to electric actuators or gearboxes, with high on-site installation efficiency. Some customers pointed out in the on-site feedback that the valve cover of Yili is "flat on the upper cover, reasonable arrangement of the screw holes, easy to replace, and saves downtime".
The company has a regular DN15~DN300 range of spot drawings and standard parts library, if there are special project needs, can also complete the structural design and proofing in a short cycle.
In modern water treatment engineering, valve fittings not only require corrosion resistance, but also emphasize precision consistency and stable supply capacity. Yining Machinery is committed to providing the industry with truly "landable" processed parts, not just "reasonable" samples.






