Types of Flange Connection

Flange connection is an important connection for pipeline construction. Flange type, according to the flange and pipe fixed way is divided into thread flange, welded flange, loose flange; according to the sealing surface form, can be divided into smooth, convex, tongue and groove, lens and trapezoidal groove formula. So there are many Ductile Iron DI Flange Fittings. General low-pressure small diameter wire flange, high pressure and low pressure large diameter welding flange, the pressure of the flange thickness and the diameter and the number of bolts are different.According to the different levels of pressure, flanged mats also have different materials, from low pressure asbestos mats, high pressure asbestos mats and PTFE foils to metal mats.

Flange connection easy to use, able to withstand greater pressure.In industrial piping, flange connection is widely used, such as in the indoor fire hydrant water supply system, butterfly valves, gate valves, check valves and other types of valves and pipe connections.

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