Ductile iron, one of the materials of expanders

Ductile iron, one of the materials of expanders
The ductile iron expander is mainly divided into steel expander, stainless steel expander and ductile iron expander, etc. The ductile iron expander is made of ductile iron as the main material and the seal is made of NBR rubber, which is a kind of high-strength cast iron material and its comprehensive performance is close to steel.
 
Ductile Iron Expander Role: Ductile Iron Expander is a new product for connecting equipment and pipeline such as pump, valve, pipeline, etc. It connects them by full bolts to make it whole and easy to install. It can bear the axial pressure of the pipeline. This makes it possible to adjust the installation size according to the site when installing and maintaining, and when working, it not only improves the efficiency, but also plays a certain role in protecting the pipeline equipment such as pumps and valves. Ductile iron expanders are easy to install and can be widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industry, plumbing, fire-fighting, electric power and other basic projects.