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metal bellows
The corrugated pipes mainly include metal bellows, corrugated expansion joints, corrugated heat exchange tubes, diaphragm boxes and metal hoses. Metal bellows are mainly used in compensation pipeline thermal deformation, shock absorption, absorption pipeline settlement deformation and other effects, widely used in petrochemical, instrumentation, aerospace, chemical, electric power, cement, metallurgy and other industries.
Bellows: A pressure measuring elastic element in a pressure measuring instrument. It is a cylindrical thin-walled creased shell with multiple transverse ripples. The bellows are elastic and can produce displacement under pressure, axial force, transverse force or bending moment. Bellows are widely used in instruments and meters, and the main use is as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The wall of the bellows is thin, the sensitivity is high, and the measuring range is tens of pa to tens of mpa. In addition, the bellows can also be used as a sealing isolation element to separate the two media or prevent harmful fluids from entering the measuring part of the device. It can also be used as a compensation element, using its volume variability to compensate for the temperature error of the instrument. Sometimes it is also used as an elastic joint for two parts. According to the material, the bellows can be divided into metal bellows and non-metal bellows. According to the structure can be divided into single layer and multi-layer. Single-layer bellows are widely used. Multi-layer bellows have high strength, good durability and low stress, and are used in important measurements. The material of the bellows is generally bronze, brass, stainless steel, Monel alloy and Inconel alloy.
Our bellows are mainly three types, one is formed bellows, the second is welded bellows, the third is electrochemical bellows, the cost of the three bellows is compared, the cost of formed bellows is the lowest, because it is a molding, no other processing links are required, and the pressure resistance is better. Welding bellows take into account the processing process, mainly involved: stamping, cleaning, pure manual welding, so the cost is relatively high, this product is suitable for small space, large compensation place. The last is currently the most demanding, usually its diameter is less than 1mm, generally used in military, medical and so on.
We will help customers to recommend suitable materials and dimensions according to the customer's working conditions. Professional people do professional things, welcome to consult us.
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