Types and characteristics of metal hoses

The metal hose is particularly flexible between the ends and is more convenient to use. Many consumers will choose this kind of metal hose when they need it, so they want to know more about the model and selection skills of metal hose, so that they can buy products that satisfy them when they buy. But we know very little about metal hoses in our life, so Xiaobai will share the basic knowledge about metal hoses in detail, hoping to help everyone.

Metal hose model

Metal hoses are suitable for conveying liquids and all high-temperature media. Specification DN20-DN800mm can be selected according to equipment and pipeline diameter. The specifications of stainless steel hoses mainly include single-button P3 and double-button P4, and the caliber of metal hoses generally ranges from 5mm to 100 mm, and the models are compiled according to the requirements of various manufacturers. The general coding rule of metal hose is enterprise name code+hose inner diameter+hose outer diameter+single or double buckle code. For example, TF0406D represents a single-button metal hose with an inner diameter of 4mm and an outer diameter of 6mm produced by Tongfeng metal hose.

Quality standard of metal hose

1. The metal hose is right-handed, and the length is not less than 3m.

2. It is not recommended to use the specifications in brackets.

3. Stainless steel metal hose is a metal hose made of stainless steel belt without filler, which is mainly used as a wire protection tube.

4.P3 stainless steel metal hose is made of stainless steel belt without filler and wound with stainless steel belt, which is used as wire protection tube.

5. The pitch of the metal hose should be flexible and elastic, and there should be no blockage and serious tensile elasticity.

6. There are no cracks and serious scratches on the internal and external joints of the metal hose.

7. Thickness S and theoretical quality of stainless steel strip.

Selection skills of metal hose

1. See size: nominal diameter of hose, joint type (mainly flange connection, threaded connection and quick joint connection), size and length of metal hose.

2. Look at the pressure: according to the actual working pressure of the hose, look at the nominal diameter and pressure gauge of the corrugated metal hose and decide whether to use the stainless steel mesh metal hose.

3. Mesoscopic quality: The chemical properties of the conveying medium in the hose determine the material of each part of the hose according to the corrosion resistance of the hose material.

4. Look at the temperature: the working temperature and range of the medium in the hose; Ambient temperature when the hose works. At high temperature, the pressure after temperature correction should be determined according to the temperature correction coefficient of the high temperature working pressure of the metal hose, so as to determine the correct pressure grade.

5. Depending on the status: according to the status of the hose in use, and referring to the correct use and installation method of the metal hose, the optimal length of the hose during settlement compensation, the length calculation of the hose in various motion states, the minimum bending times and the minimum bending radius of the hose, the hose length is correctly selected and installed.

Metal hose is characterized by:

1, flexible between metal hose pitches;

2, the metal hose has good flexibility, no blockage and good rigidity;

3. The metal hose has light weight and good caliber consistency;

4. The metal hose has good flexibility, repeated bending and flexibility;

5. The metal hose has good corrosion resistance and high temperature resistance;

6. The metal hose is resistant to rat bite and abrasion, and the internal wires are prevented from abrasion;

7. Metal hose has strong bending, tensile and lateral pressure resistance;

8. The metal hose is soft and smooth, easy to thread, install and locate;

There are relatively many types of metal hoses, so consumers should choose according to their own needs, so as to buy future metal hoses. Because the model is suitable for your own use, there will be no problem after use and installation. Moreover, friends who want to buy metal hoses should know more about the selection skills. By understanding the skills of stock selection, they can choose the metal hose that satisfies them through the skills of stock selection. The knowledge we shared about metal hoses above is also very detailed, and I hope it will help everyone.