Choosing PU Anti-Sprial Hose: Medium, Dimensions and Operating Conditions

1. Start with the medium

The product description says PU Anti-Sprial Hose is especially suitable for:

• abrasion-resistant solids
• uncertain media such as sand, gravel, grains and other particulate matter
• materials that generate static electricity

The product page also says the inner wall is very smooth and lists acid, alkali and chemical resistance.

What to confirm: The published material does not name specific chemicals, concentrations or exposure times. If your medium contains acids, alkalis, solvents or oils, send the exact composition and ask for written confirmation of compatibility before you order. The page calls the hose "anti-static" and says it suits static-generating materials, but it gives no electrical resistance value and no grounding method. If static control matters for safety, for example with combustible dust, ask for the electrical specification and grounding guidance first. Do not treat the product name alone as proof of static performance.

2. Check the construction

The published construction is:

• Wall: polyester polyurethane, transparent
• Spiral: rigid PVC, on the outside as reinforcement
• Wall thickness: 0.6–2.0 mm

The transparent wall lets operators see the material moving through the hose. The outer spiral adds reinforcement and keeps the inner bore smooth.

What to confirm: A short summary on the same product page describes the wall as "top platinum silicone", while the full description gives polyester polyurethane. Ask the supplier to confirm the wall material in writing, because this affects chemical and temperature suitability.

3. Match the dimensions

The size table lists inner diameters from 20 mm to 250 mm. These include 20, 25, 30, 31.8, 35, 38.1, 40, 45, 50.8, 55, 60, 63.5, 65, 76.2, 80, 90, 100, 102, 120, 127, 152, 200 and 250 mm. Several of these are inch-equivalent sizes, such as 38.1, 50.8, 63.5, 76.2, 102, 127 and 152 mm, which helps when you match imperial fittings.

The table shows 20 m rolls for sizes up to 102 mm and 10 m rolls for 102 mm and larger. The 102 mm size is listed in both lengths. The table also has columns for thickness, vacuum pressure and bending radius.

What to confirm: Before you order, ask for a clean data sheet for your chosen inner diameter. It should show the wall thickness, the vacuum rating with its unit, the minimum bending radius and the roll length. Also check that your clamps or couplings fit the hose's outer profile over the spiral.

4. Check the operating temperature

The published temperature range is -40 °C to 90 °C. The product summary says the hose can reach +150 °C for a short time. It does not say how long "a short time" is. If your process runs near or above 90 °C, or has heat peaks, give the supplier the temperature profile and duration and ask them to confirm suitability.

5. When this hose is not the right choice

The published material describes PU Anti-Sprial Hose as a hose for moving solids and particulates. It gives a vacuum column but no positive working pressure or burst pressure. If your application needs a pressure-rated line, such as compressed air or pressurised fluid, this hose's published data does not support that use.

For small-bore pressure work, the same company lists a PU braided hose. It has a thermoplastic polyurethane tube and cover with a high-tensile polyester yarn reinforcement. Its published data includes:

• inner diameters of 5–12 mm
• 100 m rolls
• a working pressure of 20 bar and a burst pressure of 60 bar
• a temperature range of -40 °C to +100 °C

The two products have different jobs. They do not compete for the same application.

Quick selection checklist

Next steps

To get a quotation or check suitability, send Hebei Kebing Import and Export Trade Co., LTD the following: the medium, the inner diameter, the required length, the temperature range, any vacuum or static needs, and the end fittings. Prices, lead times and certifications are not covered in the published product information. Confirm them directly with the supplier.