characteristics of PU Spiral Tube‎

PU Spiral Tube‎ characteristics: Longitudinal production process is simple, high production efficiency, low cost, rapid development. The strength of the high temperature pneumatic tube welded pipe is generally higher than the Longitudinal, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. However, compared with the same length of straight pipe seam weld length of 30 to 100%, and lower production rate. Therefore, smaller diameter pipe were powered by straight seam welded, large diameter spiral welded pipe for the most part.

A reliability and the top quality of the pneumatic tube

Holid is a professional manufacturer and a world-class factory of PU Pneumatic Tube.Holid has created a trustworthy worldwide reputation due to excellent service and high-quality polyurethane products.With Holid’s leading producing and processing technologies, Holid can manufacture various kinds of polyurethane pneumatic tubing according to client’s requirement.Each step of producing PU Pneumatic Tube is carefully calculated by production line engineers.From raw material selecting to final product selecting, Holid has chemical engineers and quality control technicians to make sure the high temperature pneumatic tube fit client’s need of physical properties.Therefore, Holid assures customers of the reliability and the top quality of the PU Pneumatic Tube.

The Evaluation of PU Tube

In most cases without any testing tools and testing conditions we can according to the visual, olfactory, tactile sensory rough identification of PU Spiral Tube‎ quality.

1. Observe whether the lumen is regular or not. Good quality PU tube lumen and the outer edge of the standard circular? Ring wall evenly distributed. The diameter of 89mm? 7mm wall thickness of PU tube, for example? Poor quality of the thickest tube wall can reach 7.5mm? The thinnest at only 5.5mm? Working in the larger pressure? Easily lead to uneven wall high temperature pneumatic tube burst or deformation? Affect the normal use.

2. Observe the presence of bubbles or other visually visible objects in the PU tube wall, and see if they are colorless and transparent. High-quality PU tube wall crystal clear? Without any impurities. The defective PU tube color yellowing? May be in the production process due to improper handling decomposition, aging? Or improper storage due to long-term.

3, high-quality PU tube in addition to a little plastic odor outside? No other petrochemical products smell. The poor steel pipe has a pungent smell of diesel oil? Especially in the hot summer? People can not be close.

4, high-quality PU tube inside and outside the pipe wall are smooth? Feel good? And low-quality pipe is more rough.

5, when measuring the wall thickness should be cut off the ends of the PU tube? Select the middle tube as a sample test to prevent some illegal manufacturers make an article in the tube at both ends of the actual wall thickness at both ends of the tube.

6, at both ends of the PU tube interception of a few centimeters of the wire? Repeated folding wire? Detection of steel wire strength and toughness. Poor quality of the wire folded a couple of will break? And high-quality PU pipe steel wire to be special tools to cut off. The quality of steel wire determines the quality of the entire pipe? Due to quality problems caused by steel pipe PU tube is prone to irreversible deformation

PE pipe with PVC pipe on the difference between appearance

PVC and PE are all olefins, PVC for PVC, is the largest of the three olefins in a strength, PE for the polyethylene, divided into low-density polyethylene, high-density polyethylene and linear low-density polyethylene tris Species. PE pneumatic air hose stiffness is not enough, the toughness of PVC is now out of the product, because he is more brittle, and PE flexibility is better, relatively large pressure is now used for water supply and drainage. Gas pipe and the connection is relatively easy to use hot-melt welding connection strength is better than their own strength high raw material to do the PE pipe was white, non-toxic, can be used as a water pipe, flexible, commonly used in rural drinking projects, water-saving irrigation Project.PVC high temperature pneumatic tube is not recommended as a water pipe, commonly used in farmland irrigation works, urban drainage works.

The methods to store pneumatic tube

The PE pneumatic air hose products should be stored in a way that does not allow for excessive stress, elongation or deformation and should be avoided from contact with sharp objects or the ground. Whenever possible, use storage racks to store hose products. PU spiral tube‎ or hose assembly should be stored flat, it is best not to stack. If stacking is unavoidable, the height of the stack should be limited to the extent that no permanent deformation of the hose at the bottom is caused. Coiled hose products shall not be suspended from stakes. Hose and hose assemblies supplied in a straightened condition shall be stored flat and shall not bend. Large diameter hoses used in the petroleum industry should be fitted with caps on the ends.

Classification of PU pipes

PU tube classification According to the material points, polyester PU tube, polyether PU tube, according to the use of requirements and call different points: PU air hose, PU clamp to strengthen the tube, PU industrial hose,

First, PU tube classification

PU PU hose, PU industrial hose, PU steel wire telescopic tube, PU spiral tube, PU tube, PU tube, PU tube, PU tube, PU stretch tube, PU spring tube, PU folder tube, PU braided tube, PU reticulate tube, PU single tube, PU straight tube.

Second, PU tube performance:

1, Transparent tube with high transparency, the state of the flow of media is clearly visible.

2, the use of high resilience polyurethane raw materials; makes the high temperature pneumatic tube has a smaller bending radius, easier to install.

3, anti-yellowing to 3 or more, not easy to turn yellow.

4, the color tube The use of imported weathering of the toner, the color tube manufactured by the standard color, bright, long-term work does not fade.

5, the use of online diameter control system, pipe diameter tolerance control within ± 0.12mm.

6, the use of 100% high physical plastic polyurethane elastomer (TPU) manufacturing, the use of a constant working pressure state, longer life.