Spiral and Suction Hoses

Suction hose is selected to retain its shape under vacuum; discharge hose is selected to carry liquid under pressure. Some spiral series may suit both duties; check the current product specification.

Consider pump inlet and outlet sizes, required flow, suction lift, run length and fittings together. Do not select the hose solely from the nominal inch size in its name.

High vacuum, muddy water, vacuum trucks, construction sites and crushing risks can require a series with stronger spiral reinforcement and wall construction. Confirm the choice against the actual operating conditions.

Inside and outside diameter, weight per metre, wall thickness, spiral reinforcement, series, coil length, order quantity and delivery terms affect the price. Different grades should not be compared by metre price alone.

These are nominal sizes; confirm actual inside and outside diameters for the series. Do not order by the inch designation alone without considering flow, pump connections and run length.

An inadequate vacuum rating, unsuitable diameter, excessive bending, air leaks, high suction lift or a blocked strainer can disrupt flow. Check the spiral construction, minimum bend radius and connections together.

Use the pump connection, required flow, suction distance, solids content and coil length as selection inputs. Confirm the heavy-duty series' actual inside diameter and vacuum/operating specification before requesting a quote.

Consider actual inside diameter, vacuum rating, flexibility, minimum bend radius, temperature and fluid type together. A restricted bore or loose clamp can reduce pump performance.

Clear or translucent spiral hoses may be chosen where water, dust, wood shavings, granules or similar flow must be seen. Food-contact or chemical compatibility must be confirmed from the current product declaration.

Colour alone does not establish the product grade. Compare standard and heavy-duty series by actual weight, spiral reinforcement, vacuum/operating conditions and intended use.

Check working and burst pressure information on the hose marking, data sheet and quotation together. Nominal values must be interpreted with regard to pump surges, temperature, fluid and connections.

Bending more tightly than permitted can restrict the bore, cause collapse under vacuum and load the connections. Measure the installation route and compare it with the product's current bending specification.

Coil length can vary with diameter, product family, production option and delivery plan. State the total length, desired continuous coil length and delivery city in the enquiry, and confirm available pack lengths.

Select clamps and connectors for the actual inside/outside diameter, wall stiffness, pressure or vacuum, and fluid. Cut squarely, avoid clamps that damage the wall and check for leaks before commissioning.

Fluid density and abrasiveness, vacuum or pressure, temperature, flow, run length and connections determine the choice. Series of the same diameter may serve different duties, so check the product declaration.

Provide the product type, suction or discharge duty, actual diameter, total metres or number of coils, operating conditions, fluid, pump connection, delivery city and target date. This helps avoid an unsuitable series or insufficient length.

If the selected series does not meet the required vacuum conditions, heat or sharp bends can strain its wall. Compare the pump's suction conditions, fluid and required vacuum with verified product vacuum and bending data.

The pump connection may specify a nominal thread size. Check the hose inside diameter, hose-tail size and pump thread separately. Do not order a fitting or hose based only on the 1″ designation.

Standard and heavy-duty series of the same diameter can differ in wall and spiral construction and operating conditions. Consider series, length, fittings and transport costs together. See the metre and coil cost guide. Current price list