1. Hoses are mainly used as wire and cable protection pipes and civil shower hoses, with inner diameters ranging from 3mm to 150mm. Small diameter hoses with an inner diameter of 3mm to 25mm are mainly used for precision optical circuit protection.
2. Hoses are mainly divided into: threading hose, drainage hose, ventilation hose, sprinkler hose, and harness pipe according to their use; According to the material, it is mainly divided into: metal hose, stainless steel hose, corrugated hose, plastic hose, rubber hose, and so on.
3. The hose is lightweight, corrosion resistant, high temperature resistant, and has excellent scalability, bending resistance, tensile performance, strong lateral pressure resistance, and easy to thread and install. It is widely used in industry and civil applications.
What are the materials of the hose?
1. Metal hose: Metal hose consists of three parts: corrugated pipe, mesh sleeve, and joint. Metal hoses are resistant to corrosion, high and low temperatures, light weight, and good flexibility. Widely used in aviation, petroleum, chemical, metallurgy, electric power, wood, construction, medicine, food, transportation, and other industries.
2. Stainless steel hose: mainly refers to a hose made of stainless steel. Stainless steel hose is also known as single and double hook stainless steel hose, P3 type P4 type single and double hook metal hose, single buckle hose, double buckle hose, wire (gas) tensile protection hose, cotton thread stainless steel metal hose. Stainless steel hose has good flexibility, corrosion resistance, high temperature resistance, abrasion resistance, tensile resistance, waterproof performance, and a certain shielding effect, which can be used as a wire protection hose for automatic instrument signals.
3. Corrugated hose: As a flexible pressure resistant pipe fitting installed in liquid transportation systems, it can play a role in vibration reduction and noise reduction, and has high flexibility, anti distortion, good bending performance, wear resistance, acid corrosion resistance, and other characteristics.
4. Plastic hoses: There are two types of plastic hoses, one is completely airtight and watertight, used for propellant delivery of carrier rockets, gas, water heaters, etc; The other type is continuously wound with tape material, and commonly wound corrugated pipes are used to protect cables.
5. Rubber hose: A rubber hose is also known as a steel wire braided hose, which consists of an inner rubber layer, a two-layer steel wire braided interlayer, and an outer rubber layer. Rubber hoses have good flexibility and are suitable for conveying hydraulic fluids.
Large metal hoses can be used in plumbing systems such as drainage, ventilation, and heating in high-rise buildings, but they are also increasingly widely used in daily life. A layer of woven mesh is added to the periphery of the micro metal hoses, making them better performance, corrosion resistance, high temperature resistance, and longer antioxidant life. Metal hoses are an important component of modern industry. Wire and cable protection tubes used to protect civil wires, cables, automatic instrument signals, and shower hoses, with sizes ranging from 3mm to 150mm. Small diameter metal hoses (inner diameter 3mm to 25mm) are mainly used for sensor line protection of precision optical rulers and industrial sensor line protection.
The main functions of metal hoses are as follows:
1、 Reduce the installation stress of the pipeline
In complex pipeline systems, due to the limitations of spatial location conditions, there are often various difficulties in installation: molded pipes cannot be installed; Bending, turning, and fitting inevitably result in local cold corrections. According to the pipe size and specific site conditions, the range of cold correction ranges from a few millimeters to tens of millimeters, sometimes even hundreds of millimeters. Practice has proven that the larger the amount of residual stress installed in a pipeline system, the higher the internal stress, which is undoubtedly a significant hidden danger.
2、 Position of compensation pipe movement
Due to the need to load and unload molds, the movable cylinders of the vulcanizing machine will move up and down. The copper coil will undergo fatigue fracture after repeated reciprocating motion. Although it can continue to be used after maintenance, stopping maintenance can cause time loss. Although the rubber tube has good flexibility and strong fatigue resistance, it is a weak link in pressure resistance, temperature resistance, aging resistance and other aspects. Generally, it cannot be used after several months. This fully reflects the good comprehensive performance of metal hoses.
3、 Vibration reduction of pipeline system
The metal hose connected to the connecting pipe can not only absorb the noise generated by the vibration of the unit, but also absorb the noise generated by fluid pulsation in the pipeline system, greatly improving the indoor environment. Metal hoses absorb vibration, which not only improves the fatigue failure ability of the system, but also reduces noise. This is why some large buildings use metal hoses in their piping systems.