Products

Product Description

Corrugated metal hose (abbreviated as bellows) is a kind of high quality flexible pipe in modern industrial pipelines. It is mainly composed of bellows, net sleeves and joints. Its inner tube is a thin-walled stainless steel bellows with spiral or annular waveforms. The net sleeve of the outer layer of the bellows is woven by stainless steel wires or strips according to certain parameters. The joints or flanges at both ends of the hose are compatible with the joints or flanges of the customer's pipelines.

Characteristics of Metal Bellows

Because the main parts of metal bellows are made of austenitic stainless steel, the excellent temperature resistance and corrosion resistance of the hose are guaranteed. The working temperature range of the hose is very wide, ranging from - 196 to 600 degrees. The suitable stainless steel grade is selected for the hose according to the corrosiveness of the medium through which the pipe is used, which can ensure the corrosion resistance of the hose.

1. Metal hose is made of 1Cr18Ni9Ti stainless steel with strong corrosion resistance.

2. The hose tube body is hydroforming of thin-walled stainless steel tube body, which has strong flexibility, flexibility, flexibility and anti-vibration ability. The braided mesh sleeve is strengthened to protect it and make it have higher bearing capacity.

3. The connection of both ends of hose can be made into other connection modes besides screw thread and flange standard, which is convenient for connection and use.

4. The product is not only suitable for matching with rotating joint, but also widely used for flexible connection of various fluid medium transportation.

Characteristics of Metal Bellows

Corrosion resistance, high temperature resistance, low temperature resistance (- 196 +420), light weight, small size, good flexibility. It is widely used in aviation, aerospace, petroleum, chemical industry, metallurgy, electric power, paper-making, wood, textile, construction, medicine, food, tobacco, transportation and other industries.

Installation of Metal Bellows

Although the metal hose can be compressed and stretched, if it is not installed in the right place, it will break quickly and reduce its service life.

Hose can be installed horizontally, vertically or obliquely. Ideally, it should be installed vertically. At the same time, it should be avoided to be installed near the wheel, and baffles can be installed if necessary.

Generally, metal hoses can be divided into three lengths: the first is compression length, that is, the length when the hose is compressed to the limit position; the second is installation length, which is the length of the hose when it is in the middle position of half of the maximum displacement; the third is stretch length, the length when the hose is stretched to the maximum limit.

When the hose is installed, the hose should be placed in the middle position, that is, the so-called installation length. When installed in this position, the hose can move in two directions when it is 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 measuring the length of hose according to the calculation results may affect the production efficiency, some foreign manufacturers directly mount the ruler on the hose and cut the ruler off after installation.