What is the function of a metal hose? What are the main uses of metal hoses?

The function is to connect the mesh sleeve with the entire bellows, and at the same time, the fitting is also the component that connects the metal hose and metal hose to other pipe fittings and equipment. It ensures that the media works properly in the piping system. The material of the joints is usually the same as that of bellows and mesh sleeves, and most are stainless steel.

In order to reduce production costs, some metal hoses with larger diameters can be made of carbon steel when conveying non-corrosive or non-corrosive media. Metal hose fittings for corrosive media, if designed, take appropriate measures to avoid contact with the media and can also be made of carbon steel. The structure of joints can be broadly divided into three categories:

Screw type, flange type and quick type: the joints of metal hoses (explosion-proof pipes) with a thread diameter of less than 50 mm under high working conditions They are mostly threaded. Once the threads are tightened, the inner and outer cones of the two joints fit tightly together to achieve a seal.

The cone angle is usually 60 degrees, while 74 degrees is also useful. The structure has good sealing properties, but the concentricity of the two mating parts must be ensured during installation. To address the repeated disassembly, assembly, and concentricity issues that often occur in real-world projects, the joints can also be designed to match the cone and ball joint.

The three major roles are described as follows:

1. Reduce the installation stress of pipelines.

In the complex pipeline system, there are often various difficulties in installation due to the limitation of space location conditions: the formed pipe cannot be installed; Tubes that are bent over, are coming over, and are put on improvised, will inevitably produce local cold corrections. Depending on the diameter of the tube and the specific conditions of the site, the amount of cold correction varies from a few millimeters to tens of millimeters, and some can reach hundreds of millimeters.

Practice has proved that the larger the amount, the higher the internal stress, and the installation stress remaining in the pipeline system is undoubtedly extremely hidden.

A section of bearing lubricating oil duct in a certain type of engine has broken many times in actual operation, which is caused by excessive installation stress.

Because the metal hose can be bent at will and the internal stress generated by bending under the rated bending radius is very small, it can bring great convenience to the installation work and play a certain role in ensuring the safe operation of the pipeline system. This is the main reason why metal hoses must be used in some piping systems.

2. Compensate for the position movement of the pipeline.

Due to the need to load and unload the mold, the movable cylinder on the vulcanizer will move in the upward and downward directions. After the copper serpentine tube reciprocating many times, fatigue fracture will occur, although it can continue to be used after repair, but parking repair will cause time loss. Although the rubber pipe has good soft characteristics and strong fatigue resistance, it is a weak link in pressure, temperature resistance, aging resistance, etc., and it cannot continue after a few months of general use.

The good comprehensive performance of the metal hose is fully reflected here. In the general industrial field, in addition to pressure and temperature, there are often some harsh conditions such as fatigue, corrosion, vibration, compression, impact, etc., in such a situation, it is most appropriate to use metal hoses to compensate for the position movement of pipes.

3. Absorb the vibration of the pipeline system.

In a huge building, the air conditioning in the hall is provided by a 6FWB unit fixed in the basement. The vibration of the unit is transmitted to the ground hall through the bridge connecting the pipe, and the noise level is up to 45dB. In such an environment, people always feel a sense of discomfort.

After the design is improved, the metal hose is connected in series on the connecting pipe, which not only absorbs part of the noise generated by the vibration of the unit, but also absorbs a lot of noise caused by the fluid pulsation in the pipe system, at this time, the noise value in the ground hall is only 33db, which greatly improves the environment in the hall.

Metal hoses can absorb vibrations, which can not only improve the fatigue damage ability of the system, but also achieve the effect of reducing noise. That's why some piping systems use metal hoses.

Metal hoses are characterized by displacement under pressure, axial force, lateral force or bending moment, and are pressure-resistant, vacuum-sealed, corrosion-resistant, temperature-stable, and long-lasting. As a result, it is widely used in many industrial fields. It is mainly used in the following aspects.

1. It is used for elastic sensing components in instruments.

High demands are placed on the elastic properties of bellows as elastic sensitive elements. The bellows, which is used as an elastic sensitive element, basically converts the pressure into a displacement output or the pressure into a concentrated force output.

2. Vacuum sealing for vacuum switch.

Vacuum switch is a switchgear that conducts current breaking in a vacuum, its main contact is located in the vacuum interrupter, the bellows is the key element in the vacuum interrupter, only after the use of metal bellows is it possible to use mechanical force to move the moving contact from outside the vacuum interrupter, and can keep the vacuum interrupter shell completely sealed.

3. It is used as a sealing and isolation element for valves.

Bellows valves, whether they are globe valves, throttle valves, regulating valves, or pressure reducing valves, bellows are used as a seal-free sealing isolation element for valve stems.

Fourth, it is used for metal corrugated expansion joints.

Metal corrugated expansion joints are widely used in a variety of piping systems to compensate for axial, lateral, and angular displacements caused by temperature and pressure fluctuations.

5. It is used for metal hoses as flexible connections.

The metal hose uses its flexibility to compensate for the position deviation caused by installation in the piping system and meet the requirements of the working end displacement in all directions, and withstand the fluid pressure of the system.

6. It is used as a heat exchange element for bellows heat exchanger.

The bellows heat exchanger is a high-efficiency, reinforced heat exchanger, which is the product of a combination of metal forming, mechanics and heat transfer. As a heat exchange tube bundle, the bellows mainly plays the role of strengthening heat exchange, and also plays the role of heat compensation and anti-vibration.

The stainless steel metal hose is made of stainless steel SUS304 or SUS301, which is used as a protection pipe for wires, cables, optical fibers, automation instrument signal lines and wire and cable protection pipes for instruments, with an outer diameter from 3mm to 150mm, and a small-diameter stainless steel metal hose (outer diameter 5mm-25mm) is used for the protection of precision electronic equipment and sensor circuits, precision optical ruler sensing circuit protection, and industrial sensor circuit protection. It has excellent flexibility, corrosion resistance, high temperature resistance, wear resistance, and tensile resistance.

Advantages of stainless steel metal hoses.

1. Stainless steel and metal hose pitch is flexible.

2. Stainless steel metal hose has good elasticity, no blockage and stiffness.

3. The stainless steel metal hose is light in weight and has good caliber consistency.

4. Stainless steel metal hose has good flexibility, repeated bending and flexibility.

5. Stainless steel metal hose has good corrosion resistance and high temperature resistance.

6. The stainless steel metal hose is anti-rat bite and wear-resistant, and prevents the internal wires from being worn.

7. Stainless steel metal hose has strong bending resistance, tensile resistance and side pressure resistance. 8. The stainless steel metal hose is soft and smooth, easy to thread, install and position.

Stainless steel metal hose product use:

It is used as a variety of equipment signal lines, transmission wires and cables, and optical fiber and cable protection.

Applicable to four categories of products:

1. Wire protection tubes for armored optical cables, precision optical rulers, optical measuring instruments, medical instruments, machinery and equipment;

2. It is suitable for public machines, remote water meters, door magnetic alarms and other equipment that needs to be used for safety protection of wires;

3. Protective tubes for various small wires;

4. Pipe for network cable protection of various computers, robots, etc.

Metal hoses are an important component in the connecting pipelines of modern industrial equipment. Metal hoses are used as wire and cable protection pipes for wires, cables, automation instrument signals and civil shower hoses, with specifications from 3mm to 150mm. Small-diameter metal hose (inner diameter 3mm-25mm) is mainly used for the protection of the sensing circuit of the precision optical ruler and the protection of the industrial sensor line.

Here are some of the well-known brands recognized in the metal soft joints industry that are widely recognized and have a great reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Metal hoses are mainly used to reduce vibration and noise.

The function of the metal hose should be to connect some more important liquids.

There are two main materials of metal bellows, one is black steel strip and the other is galvanized steel strip.

The processing technology is mainly made by the machine processing of the bellows, the wavy port, the mutual occlusion, and the production of one circle after another.

It's okay, the environment is good, and the doctor is also very serious and responsible.

Stainless steel wire braided metal hose application field: machine tool equipment, lifting machinery, elevator manufacturing, ship repair and power station, workshop, power plant and other electrical engineering equipment wiring supporting engineering. Automobile, subway, train, aerospace, machinery, oil field, ship, wiring harness, wire protection, when strong protection pipe; It has good flexibility, corrosion resistance, temperature, wear resistance, waterproof and explosion-proof, good shielding, tensile resistance, and UV resistance.

Characteristics of stainless steel wire braided metal hoses:

1.Stainless steel wire braided metal hose structure: the outer layer is thickened 304 stainless steel braided middle layer PVC is coated with the inner layer of galvanized metal hose, so it is also called 304 stainless steel wire braided metal hose.

2.Color: Metallic, Silver.

3.Thread specifications: inch G, metric mefyicGerman PG.

4.It has thickened zinc alloy galvanized or chrome plating, beautiful appearance, compact structure and high strength.

5.The hose sheath design is designed to be interlocking with the hose, so that the assembly is time-saving, convenient and tensile resistant.

6.It can be waterproof, dustproof, salt-resistant, acid-alkaline, alcohol, oil, clothing and general solvents.

7.The size and thread standard can be customized according to customer requirements.

8.Temperature resistance: 40°C +120°C.

I firmly believe that the word metal hose will not be unfamiliar in everyone's current life, especially today, when high-tech is so advanced. Those who have not seen it can also literally understand the practical significance of this kind of plastic hose. The inner layer is made of metal materials, the outer layer is plastic, and the covering layer is not only plastic, but also PVC materials.

The main use is also widespread.

One: moisture-proof insulation. Metal hoses are widely used in various fields, and many of them are wet and cold, exposed to the air under the premise of using the process, which stipulates that there must be moisture-proof and its insulation characteristics, otherwise in the communication industry, in the power station, the interruption of several routes will cause very obvious adverse effects, may be a part of the communication hemiplegia, may be a power supply and distribution system hemiplegia.

2. Heat-resistant and fire-resistant. Metal hoses have the unique characteristics of fire resistance and heat resistance, and many routes are not operated in normal conditions, especially in the case of summer in the southern region, which is actually widely hot in our country.

In such a natural environment, it is necessary to have the effect of heat resistance and fire protection. This is also a very characteristic of this type of plastic hose. In fact, there are some common problems in the application of this kind of metal hose, and there are also some problems to pay attention to behind the general application scope.

What are the characteristics of metal hoses 1The metal hose is mainly made of stainless steel material, which has a high corrosion resistance. 2. The working temperature range of metal hose is very wide, from -196-600, and its high and low temperature resistance is good.

As for the metal hose, he has a lot of insults, for example, in those bending places, this one that requires courage is a hose, and his one must be better to use.