极速十一选五龙虎技巧 www.wogqyx.tw About the flange of the basic knowledge about the basic knowledge of the flange
About the basic knowledge of the flange is introduced
Flange is a kind of disc parts, are the most common in the pipeline engineering, the flange is used in pairs. In pipeline engineering, the flange is mainly used for pipe connection. In need of connecting pipes and all kinds of installation of a flange, the low pressure pipe flange can use silk, the use of more than 4 kg pressure welding flange. By sealing point between two pieces of flange and bolt fastening. Different stress of flange bolts with different thickness and use different. When water pump and valve, and pipe connection, the local equipment, also made the corresponding flange shape, also known as flange connection. Where there are two surfaces in the surrounding use of bolt connection closed connection parts at the same time, generally referred to as the "flange", such as ventilation pipe connections, this kind of parts can be called "flange parts". But this connection is only a partial equipment, such as flange connection and water pumps, not good called the pump flange parts ". Relatively small, such as valve can call "flange parts".
Flange connection is an important connection mode of pipeline construction.
Flange connection is the two pipes, fittings or equipment, fixed on a flange, a first between the two flanges, plus the flange gasket, bolt fastening together, complete the connection. Some pipe fittings and equipment have been bringing flange, is also belongs to the flange connection.
Flange threaded connection (screwed) flange and welding flange. Low pressure small diameter wire connect flange, high pressure and low pressure of large diameter used welding flange, the thickness of the flange and the connection of different pressure bolt diameter and the number is different.
According to the different levels of pressure, flange gasket also have different material, from the low pressure asbestos pad, high-pressure asbestos pad to metal pads.
Flange connection is convenient to use, can withstand greater pressure.
In industrial piping, flange connection is widely used. Within the family, pipe diameter is small, and it is low voltage, invisible flange connection. If in a boiler room or production site, the flange connection of pipes and equipment are everywhere.