Generally, metal hoses can be divided into three types of lengths: the first type is the compressed length, that is, the length when the hose is compressed to the limit position; the second type is the installation length, which is in the middle position of the half of the Z maximum displacement When the length of the hose; the third type is the stretched length, the length of the hose is stretched to the limit.
When installing the hose, the hose should be in the middle position, which is the so-called installation length. When installed in this position, the hose can move in two directions when subjected to axial load. Otherwise, if it can only move in one direction, it will affect the strength of the metal hose and reduce its service life.
In the actual installation process, considering that the use of a ruler to measure the length of the hose according to the calculation result before installation may affect production efficiency, some foreign manufacturers install the ruler directly on the hose and cut the ruler after installation.
1. When choosing a metal hose, please choose a metal hose with a loose flange at one end as much as possible for ease of installation.
2. The surface of the metal hose should be protected during electric welding at the construction site to prevent welding slag and arc ignition from burning the metal hose.
3. It is strictly forbidden to twist and install the metal hose.
4. There should be no bends along the root of the metal hose, and no dead bends.
5. The passing medium must not be corrosive to the material of the bellows, and the chloride ion content in the medium should be ≤25PPM
6. Strictly install the installation as shown in the correct installation method. (See installation guide)
7. It is strictly forbidden to damage the flange sealing surface mechanically.
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Shanghai Sansheng Health Technology Co.,Ltd. with more than 20 years’ history is headquartered in Shanghai city. We enjoy very convenient traffic, near Pudong airport and Ningbo port. Shanghai factory covers over 24000 square meters, produces corrugated stainless steel tube. The branch factory is located in Yuhuan Zhejiang province, supply all kinds of brass valves and fittings.As a famous China flexible metal hoses manufacturers and custom metal flex hoses factory, our core business is the production of CSST corrugated stainless steel tube 304 (with high resistance to pressure and deformation ) for two different applications: Plumbing and Gas.We specialize in manufacturing and supplying a wide variety of water tube and gas tube, wholesale metal flex hoses, and all kinds of fittings. Our ISO9001 certification further assures our internal and external quality control. We guarantee our customers high-quality products, quick delivery, and direct and attentive customer service. All the while we continue to actively seek mutual cooperation in business and technology, advocating OEM and ODM projects. We are looking forward to working with you.