Durable PU Steel Wire Hose from China: FAQ on Compatibility, Sizing and Documentation

If you are sourcing a durable PU steel wire hose from China for dust collection, ventilation or vacuum systems, you will probably need to check three things before you order: whether the hose suits your media and environment, which size suits your equipment, and which documents you can get. This FAQ covers those questions for the PU steel wire vacuum and duct hose from Hebei Kebing Import and Export Trade Co., LTD.

All answers come from the confirmed product listing. Where the listing gives no data (for example pressure ratings or certifications), we say so. Do not assume those values. Confirm them in writing before you order.

What is the PU steel wire hose made of?

The hose wall is soft polyurethane (PU), reinforced with a spiral of copper-plated steel wire. The published overall wall thickness is 0.4–2.0 mm. The listing says the polyurethane wall and the spring steel wire spiral give the hose compression, abrasion and chemical resistance. It also notes that polyurethane resists abrasion well in both sliding and impact wear.

What applications is it suited to?

The listing recommends the hose for:

• suction and transport of abrasive solids such as dust, powders and wood chips
• industrial air movement, flue gas control and dust collection
• ventilation and air-conditioning systems
• industrial vacuum cleaners

Is it compatible with oil and fuel?

The hose is resistant to oil and fuel and has general chemical resistance.

What temperature range does it handle?

The published operating temperature is −20 °C to 80 °C, with short-term exposure up to 120 °C. The listing does not say how long "short time" means. Confirm this if your process has temperature peaks.

Is the hose anti-static or conductive?

The listing for this PU hose makes no anti-static or conductivity claim. If your dust or powder system needs static control, raise this as a specific requirement and ask for supporting documentation. Do not assume the hose has this property.

What sizes are available?

The published size table lists inner diameters from 25 mm upward, including 25, 32, 38, 40, 45, 50, 55, 60, 63, 65, 70, 75, 80, 90, 100, 110, 120, 125, 150, 160, 170, 180, 200, 250, 300, 350, 375, 400 and 425 mm. A 450 mm row also appears, but it is incomplete in the confirmed excerpt. Each listed size has wall thickness options of 0.6, 0.9, 1.2, 1.5 and 2.0 mm, and the standard length is 10 m per roll.

The table also gives a bending radius for each size. Examples:

How should I choose a wall thickness?

The listing says thinner walls make the hose lighter per linear foot and give it good flexibility. Several wall thicknesses are offered. The listing does not give a pressure, vacuum or crush rating for each thickness. Choose a thickness based on your duty requirements, and get the ratings for that thickness confirmed in writing.

Does the listing include working pressure or vacuum ratings?

No. The confirmed listing for the PU steel wire vacuum and duct hose gives no working pressure, burst pressure or vacuum rating. Ask for these values for the exact diameter and wall thickness you plan to order.

Can sizes or specifications be customized?

The listing says customized services are available for different product requirements. It does not say which parameters can be changed. Send your required diameter, wall thickness, length and application, and get confirmation of what can be supplied.

What material properties does the listing state?

The listing describes the hose as free of plasticizer, free of halogen, non-toxic and tasteless. It also says the hose is highly elastic, highly flexible and compressible, has a small bending radius and a smooth inner wall.

Are certifications or test reports available?

The confirmed product listing names no certifications, test reports or compliance standards. If your market or project needs specific documents, such as material declarations or test reports, list them in your inquiry and confirm what can be provided before you place an order.

How does it differ from the PVC steel wire duct hose?

The two are separate products. The PVC steel wire duct hose has a three-layer structure: soft PVC inner and outer layers with a PVC-coated steel wire in between. Its wall thickness is 0.2–2.0 mm and its temperature range is −20 °C to 80 °C. It is highly transparent and the steel wire can conduct static electricity when grounded. It includes working pressure and vacuum pressure values. The PU hose, by contrast, highlights polyurethane's abrasion resistance and its oil and fuel resistance. Choose based on the properties your application needs.