Difference between clamp type fluorine lined butterfly valve and flange type butterfly valve

Clamp type fluorine lined butterfly valve It is used in many working conditions and has a wide range of applications. In addition to general industrial use, it is also used in the cooling water system of power plants. We know that clamp and flange are two types of connection methods for valve products. So, for the clamp type Fluorine-lined Butterfly Valve What is the difference between flange butterfly valves?

The valve body of the flange butterfly valve is connected to the pipeline flange with flanges. But Clamp type fluorine lined butterfly valve There are no flanges at both ends, only guide bolt holes, which are connected using bolts or nuts. For clamp type fluorine lined butterfly valves, they are relatively inexpensive and have longer bolts, resulting in higher precision during production. Improper construction can easily lead to leakage.

The compression molding process in the clamp type fluorine lined butterfly valve

In contrast, disassembling the clamp type fluorine lined butterfly valve is more convenient and the valve cost is lower, but the disadvantage is that one sealing surface has a problem and both sealing surfaces need to be disassembled. Flange butterfly valves have relatively more reliable sealing, but the valve cost is relatively high. Moreover, clamp type fluorine lined butterfly valves are generally not suitable for the end of pipelines and downstream situations that require disassembly, because when the downstream flange is disassembled, the clamp type valve will fall off, and in this case, a short joint must be made separately for disassembly. Flange type butterfly valves do not have this problem, but the cost will be relatively high. Clamp type valve bolts are generally longer, and under high temperature conditions, bolt expansion may cause leakage, so they are not suitable for large pipe diameters under high temperature conditions.