Acid-alkali suction and delivery hose

These acid-alkali suction and delivery hoses are designed for industrial environments where safe and efficient transfer of aggressive media is required. Thanks to the EPDM inner tube and cover, they are suitable for many acids, alkalis, light chemicals and water, while offering good resistance to weathering and external mechanical stress.

The smooth inner surface of the hose supports an even flow and helps reduce pressure loss in the system. This is particularly important in longer hose lines or where stable operating pressure is required. The EPDM inner tube is black and smooth, which simplifies cleaning and visual inspection.

The reinforcement consists of a strong, cross-braided synthetic textile layer combined with one or two embedded steel spirals, depending on the hose size. This construction ensures good dimensional stability, supports both suction and pressure applications, and helps the hose maintain its shape under vacuum. The steel spiral reinforcement also improves kink resistance compared to hoses without spiral support.

The outer cover is made of black, smooth EPDM rubber. This material is abrasion-resistant and weather-resistant, making the hose suitable for both indoor and outdoor use under typical industrial conditions. The smooth outer surface makes the hose easier to clean and helps it slide over surfaces or through hose guides.

The temperature range of -30°C to +60°C allows the hose to be used in many standard industrial processes. Within this range, the hose maintains its flexibility and mechanical properties under normal operating conditions. When selecting a hose, the actual operating temperature, the nature of the medium and the pressure conditions should always be taken into account.

The table above lists key technical data for each available nominal size. For each inner diameter, you will find the corresponding outer diameter, recommended working pressure, burst pressure, maximum vacuum (in m/H2O), weight per meter and standard coil length. These data support precise system design and help you choose the hose that best matches your existing fittings and equipment.

Typical areas of use include:

• Transfer lines in chemical plants and industrial facilities handling suitable acids, alkalis and light chemicals
• Suction and delivery lines on pumps and stationary or mobile units
• Filling and emptying of tanks, containers and process vessels with compatible media
• Water and utility lines in environments where chemical resistance is required within the specified range

When integrating these hoses into your system, it is important to select suitable couplings and clamps that are compatible with the hose dimensions and pressure ratings. Proper installation, including correct clamping and strain relief, helps maintain tightness and extend service life. Regular visual checks for external damage and compliance with the recommended operating parameters support safe use.

Before final use with specific chemicals, it is advisable to compare the planned media with general EPDM compatibility information and to take into account the operating temperature and concentration. This supports the selection of a hose configuration that fits your application.

With multiple diameters, defined pressure ratings and vacuum data, these acid-alkali suction and delivery hoses offer a practical solution for many industrial transfer tasks where reliability, robustness and resistance to the specified media are required.