Threaded flange is a kind of disc parts, is one of the most common in the pipeline engineering, flanges are used in pairs. In pipeline engineering, threaded 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. Add seal between two pieces of flange, bolt. Then different stress of flange bolts with different thickness and use different., pump and valve in and pipeline connection, these 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 known as the "flange", such as ventilation pipe connections, this kind of parts can be called "flange parts".
Threaded flange threaded connection (screwed) flange and welding flange. Low-pressure flange small diameter wire, 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.
Threaded flange according to the different levels of pressure, flange gasket also have different material, from the low pressure asbestos mat, high-pressure asbestos pad to metal pads.
1. The material divided into carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon luo drain, PPC, etc.
2. To make methods can be divided into forging flange, divided into the casting flange, rolled welding flange, flange (super models)
Division can be divided into 3. To make standard gb (chemical standards, oil standard, power standard), American standard, Germany standard, Japanese standard, the standard and so on.
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