Hose is widely used in various industries, and it can be mainly divided into: stainless steel hose, metal hose, corrugated hose, plastic hose, rubber hose. In this article, I will introduce you to the classification of hoses.
Stainless steel hoses are mainly hoses made of 304 or 301 stainless steel, wire protection hoses that are often used as signals for automated instrumentation, or stainless steel hoses that protect precision optical scales and protect sensing lines. It has good flexibility, corrosion resistance, high temperature resistance, abrasion resistance, tensile strength, water resistance, and provides a certain shielding effect. The corrosion resistance of stainless steel hoses depends on the chromium content. When the amount of chromium added is 10.5%, the atmospheric corrosion resistance of the steel is significantly increased. However, when the chromium content is higher, although the corrosion resistance is still improved, it is not obvious. The reason is that when chromium is used to alloy steel, the type of surface oxide is changed to a surface oxide similar to that formed on pure chromium metal. This tightly adhering chromium-rich oxide protects the surface from further oxidation. This oxide layer is extremely thin, through which you can see the natural luster of the stainless steel surface, giving the stainless steel a unique surface. Moreover, if the surface layer is damaged, the exposed steel surface will react with the atmosphere to repair itself, and the "passivation film" is reformed to continue the protection.
Metal hoses are mainly divided into spiral bellows and annular bellows. The outer shell of the spiral bellows is arranged in a corrugated spiral. There is a spiral angle between the adjacent two corrugations, and all the corrugations can be connected by a spiral. The annular bellows shell has a corrugated closed annular shape, and the wave and the wave are formed by a series of annular corrugations. The annular bellows are formed from seamless tubing or welded tubing. Restricted by the processing method, the single tube length is usually shorter than that of the spiral corrugated tube, but the advantage is good elasticity and low rigidity. The corrugated hose is installed in the liquid conveying system as a flexible pressure-resistant pipe fitting to compensate the mutual displacement of the pipe or the connection end of the machine and the device, absorb the vibration energy, and can play the role of vibration reduction and noise reduction. It has many characteristics such as good flexibility, light weight, corrosion resistance, fatigue resistance, high temperature resistance and so on.
There are two kinds of plastic hoses, one is completely airtight and watertight, and can transport some medium that is not easy to corrode the pipe body such as gas, liquefied petroleum gas or other fuel. The other is continuous winding with a strip of material. The ordinary coiled bellows is used to protect the cable, and the steel wire can be added to it to make it have certain plasticity, such as the covered wire of some lamps.
The rubber hose produced by Henan Lanphan, also known as the rubber hose and the steel wire braided hose, is made of the corresponding materials according to the different transport media. It is a flexible hose for conveying medium (positive and negative pressure conditions) of various liquid viscous fluids and powdery solids, such as alcohol, fuel oil, lubricating oil, emulsion and the like. At the normal temperature, it can pump or discharge mineral oils such as gasoline, kerosene, diesel oil, engine oil and crude oil. The rubber hose consists of an inner rubber layer, a steel wire braid (or multi-layer cloth woven or wound) and an outer rubber layer. The connection form is flanged and clamped. In contrast to hard tubes, the biggest feature of rubber hoses is their flexibility.
The above is the classification of the hose, if you want to know more about metal hoses, please contact us. Henan lanphan is a qualified company which boasts good reputation both home and abroad. For several decades, we are dedicated to the manufacture of laboratory equipment and pipe fittings. If you want to know more about our products and intend to purchase our products, please contact with us as soon as possible. We are willing to provide you as much information as possible.