What are the classifications of steam hoses? What are their specific characteristics? Are they expensive? What is the approximate price? Please tell us? Hello, steam hose 28 yuan 1m. The steam hose is used to transport saturated steam or superheated water not higher than 150℃. The biggest feature is that the rubber layer has good heat resistance, and the bursting pressure of the hose is not less than 10 times of the working pressure. The price of steam hose on the market is generally one meter from 22 yuan to 30 yuan. Personally, I suggest that you should pay attention to:
Daily method
To see whether a hose is good or bad, look, smell, ask and cut like a doctor.
We need to buy some hoses when we decorate our home. Now I&;ll teach you how to buy a good hose. The first thing is to distinguish the materials.
However, the hoses on the market are mainly made of stainless steel and aluminum-magnesium alloy wires. Which is better, stainless steel wire or aluminum wire? The tensile force of stainless steel wire is greater than that of aluminum-magnesium alloy wire, and the stainless steel wire has good corrosion resistance and is not easy to oxidize; The friction on the surface of the stainless steel hose will not make the hand dark, if the grey one is alloy wire; The surface color of stainless steel hose is black and bright, and stainless steel wire is pale and dark and bright, and alloy wire is used. By comparison, it shows that stainless steel is easy to use. What have you been taught to judge the material?
Second, what is the appearance of whether the braided tube is high-grade or not?
When we buy a braided hose, we must first look at its weaving effect. If the weaving does not jump, the weaving is continuous, and the density of non-overlapping weaving is as high as possible, how to look at the density of braided hose: that is, look at the gap and diameter of each strand); See if the braided hose is made of stainless steel wire; Look at the quality and material of other hose fittings; Use your nose to smell whether there is a pungent smell at the water inlet of the hose: the higher the rubber content in the hose, the better the pungent smell, and the performance of tension blasting will also be enhanced. General price of steam hose: the steam hose with cloth can&;t dissipate the temperature quickly. It is recommended that you use the hose woven with thread, and the price is 22 yuan/m. For your reference. Steam hose, that is, steam hose. It is used for cooling water of refrigeration equipment, hot and cold water of engine, food processing, especially hot water and saturated steam of dairy products factory, and can resist dilute (low concentration) acid and alkali.
structure
Steam hoses, like ordinary industrial hoses, are composed of inner rubber, outer rubber and intermediate layer.
Steam hose with braided steel wire and wrapped in water
Steam hose with braided steel wire and wrapped in water
Commonly used internal and external glue materials are made of EPDM material with excellent heat resistance, steam resistance, ozone and ultraviolet resistance and chemical properties, and the external glue is wrapped. Generally, the middle layer is braided wire or braided steel wire to strengthen the pressure bearing range of the rubber hose.
Common parameter editing
Generally, there are the following parameters for defining steam hose:
pressure
Generally, the working pressure is within 7 bar, and the higher blasting pressure can reach 70 bar.
temperature
The common temperature range is -30℃~ 130℃, and some imported hoses can even reach up to 210℃
electric resistance
The common price of steam hose with resistance coefficient less than 109Ω is about 50 yuan, and the price of this kind of outer glass fiber high-temperature and high-pressure braided pipe is 42 yuan. Because of different brands and specifications, the price is different. I believe that one cent costs one cent goods. Steam glue of clothTube, can&;t quickly spread the temperature, it is recommended that you use thread woven hose, the price of 22 yuan/m.
Generally, 20# seamless pipe is used for low-pressure steam, and 20G or 15CrMo seamless pipe can be used for medium-pressure steam.
20 # steel for steam below 2.0MPa,
20G or 15CrMo is used for steam of 2.0MPa to 4.0MPa,
Relevant labels of Cr-Mo steel or stainless steel for steam above 4.0mpa