Traditional Culture Encyclopedia - Traditional culture - What is the difference between 6-point bellows and 4-point bellows?
What is the difference between 6-point bellows and 4-point bellows?
/kloc-what is the distinction between 0/,6-point and 4-point bellows?
1, in terms of diameter, 6 minutes and 4 minutes are in inches, of which 6 minutes is six-eighths of the diameter, that is, G3/4, which is about 19mm, and 4 minutes is four-eighths of the inch, that is, G 1/2, which is about12.7mm; 2. Different from the thread outer diameter, the thread outer diameter of 6-point bellows is about φ26.2 mm, and that of 4-point bellows is about φ 20.8 mm. ..
2. What are the types of bellows?
1, according to the composition materials
Bellows can be divided into metal bellows and non-metal bellows according to the composition materials. Among them, metal bellows are used for natural gas and water heaters, such as stainless steel bellows, bronze bellows, brass bellows, Monel bellows and Inconel bellows. Non-metallic corrugated pipes are generally made of plastic materials, such as telescopic corrugated pipes and wear-resistant spiral double-walled corrugated pipes.
2. According to the structure
Bellows can be divided into single-layer bellows and multi-layer bellows according to their structures, among which single-layer bellows is widely used, especially in families. However, the multilayer corrugated pipe has higher strength, better durability and less stress, and is often used in important measurement, with thinner wall and higher sensitivity.
Editor's summary: The above is an introduction to the method of distinguishing 6-point bellows from 4-point bellows. I hope what Bian Xiao shared can give you some reference. If you want to know more about it, you can pay attention to our Qijia. Com information.
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