Les vannes sont une partie essentielle de tout système de plomberie ou de tuyauterie, permettant le contrôle de l'écoulement des liquides et des gaz à travers les tuyaux. Two common types of valves used in industrial and commercial applications are butterfly valves and gate valves.
Les vannes papillon – Detail About Double Flanged Type
Butterfly valves have a circular disc that rotates perpendicular to the direction of flow. When the disc is opened, it aligns with the pipe axis allowing full flow. When closed, it blocks flow through the valve.
Double Flanged Butterfly Valves
They have a flanged connection on both ends that mate with flanges on the connecting pipes. They are typically used in larger pipe systems from 2 to 60 inches in diameter where the higher operating pressure requires a more robust valve construction.
Materials For Double Flange Butterfly Valves
It include cast iron, ductile iron, steel and alloy steel, depending on the service conditions and medium being controlled. They are used for flow control of liquids and gases in applications like pumping systems, power plants, oil and gas facilities and more.
Gate Valves – Introduce About Ductile Iron Type
Gate valves have a wedge-shaped disc that moves linearly to open and close the flowpath. Ductile iron gate valves have a cast or ductile iron body and wedge disc.
Ductile Iron Gate Valves
They are similar in design to cast iron gate valves. Cependant, they are made of ductile iron which is less brittle and more durable. They can operate at higher pressures and withstand more impact.
Ductile iron gate valves are widely used in water and wastewater applications from 2 to 48 inches in diameter. They are frequently used on transmission mains, distribution mains and in plants and facilities to isolate piping runs for maintenance or repair work.
Both Of Two Types’ Valves Play An Important Role
Both double flange butterfly valves and ductile iron gate valves play an important role in ensuring process efficiency and safety in industrial and commercial fluid handling systems. Proper valve selection, installation and maintenance are critical to maximize the performance and service life of the valves.