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Wafer-type connection is a method of fastening valves (especially butterfly valves, check valves, etc.) between pipe flanges using long bolts. Its defining characteristic is: the valve does not have its own integral flanges; instead, long bolts pass through the flanges of the two pipes to secure the valve in the middle.

Socket Weld is a connection method where a pipe is inserted into the socket (recessed hole) of a fitting or valve, and then a fillet weld is applied to the outer joint between the two, making them an integral assembly. This connection method is easy to operate, highly proven, and is widely applied particularly in small-bore (typically DN50 and below) and medium-to-high pressure applications.

Butt welding is a welding method where the ends of two workpieces are placed facing each other, heated simultaneously across the entire end surface, and pressure is practical to reach atomic bonding between the two workpieces in the solid state, therefore joining them into one piece.

The Lug Type Semi-shaft Butterfly Valve has emerged as a versatile and reliable solution in various industrial piping systems. This article delves into its design, benefits, applications, and maintenance, providing a comprehensive guide for engineers, procurement specialists, and industrial maintenance teams. Featuring insights from Zhongguan, this blog also includes tables, lists, and FAQs to ensure a complete understanding of this essential valve type.

What is a Flange Connection? A flange connection is a connection method that widely used detachable mechanical. It often uses a pair of flanges, a sealing gasket, and bolts and nuts to connect pipes, valves, or equipment together tightly . Its key principle is: using the tightening force of bolts to compress the sealing gasket between the flanges, so protecting the fluid (liquid or gas) from leaking.

Lift type check valves are critical components in industrial piping systems, ensuring one-way flow and preventing backflow that could damage equipment. In this comprehensive guide, we explore the design, functionality, benefits, and applications of lift type check valves.