What is the difference between a threaded connection and a flange connection?
According to the different method of transmission, the bolt coupling is divided into the tension join and the shear join. The former makes and installs convenience and applies widely; The latter can be combined with precision and can have a positioning effect. Screws and screws are used for structural constraints and cannot be used for bolts. The screw connection is not a nut, and it has a bare surface, but it should not be used for frequent disassembly, so as not to damage the threaded hole of the connecting piece. With tight set screw connection, tight set screw screwing in threaded hole is one of the connection, the end to resist another connection, with the mutual position fixed two parts, and can transfer small force or torque. In most cases, threaded joins are detachable. Loose joins apply less. Thread connection characteristics: (1) the thread can produce a large axial force when it is tightened.
There are differences in installation, mainly in terms of mechanical properties strength, compared to the flange and flange.
The flanges and flanges of the flange and pipe welding are simple to use bolts
Flange connection is actually convenient disassembly, while on the port equipment, valves and so on, in order to facilitate disassembly can select flange connection, also convenient disassembly and threaded connection sometimes, but their level of pressure is not high. The flange connection form also has thread connection, but it is the pipe that is smaller and thicker in diameter. The design has this kind of relation to have the strict regulation to consult the design manual to know
