Stainless Steel Extension Hose PROFI S for Drinking Water with Stainless Steel Fittings (1/2" FF, 50-100 cm)

Product detailed description

This expandable stainless steel hose is commonly used in potable water supply systems for both new installations and maintenance work. The hose is frequently found in residential plumbing, industrial water distribution networks and commercial building services where reliable, corrosion-resistant connections are required. Installers working on kitchen appliances, underfloor heating systems, water filtration units and boiler feed lines will benefit from the flexibility and durability of this hose design. The high elongation properties of the stainless steel allow for easy adaptation to irregular pipe layouts and movement compensation in dynamic environments.

Due to its high resistance to corrosion and mechanical stress, the hose is well suited for use in aggressive environments such as food processing plants and chemical facilities where potable water is supplied. The hose can also be used in steam condensate return systems where temperatures may fluctuate within the specified range. The double female thread configuration allows for direct connection between two threaded components without the need for additional adapters, simplifying installation in tight spaces.

Technical parameters

The hose is rated for operation between -20°C and +100°C, making it suitable for both cold and hot water applications. The 1/2 inch female-female configuration ensures compatibility with standard pipe fittings and valves. The hose length can be adjusted from 500 mm to 1000 mm by stretching the material up to twice its original length, allowing for precise fitting in variable installation scenarios.

Installation and connection

To install the hose, first ensure that the connecting components have matching 1/2 inch internal threads. Clean the threads of both the hose ends and the mating components using a dry cloth to remove any debris or grease. Apply a thin layer of thread sealing compound or PTFE tape to the male threads of the connecting components before screwing them onto the hose fittings. Tighten the connections using a spanner or wrench until the threads are fully engaged, but avoid over-tightening which could damage the stainless steel fittings.

During installation, verify that the hose is not twisted and that the connection points are aligned properly. A common mistake is using the hose in high-pressure systems beyond its 10 bar rating, which can lead to premature failure. Another frequent error is neglecting to account for the expansion capability of the hose when planning the layout, resulting in unnecessary bending or kinking. Always ensure that the hose is installed with sufficient clearance to accommodate its maximum stretched length without interference from surrounding structures or components.

Compatibility and accessories

This hose is compatible with all standard 1/2 inch internal thread fittings commonly used in potable water systems. For installations requiring a different thread configuration, such as male-female or male-male, alternative hose variants should be selected. When connecting to valves, meters or other equipment, ensure that the mating components are made from compatible materials to prevent galvanic corrosion. Additional components such as union couplings or isolation valves may be required for complex systems, depending on the specific application requirements.

Technical background for designers

The hose operates on the principle of elastic deformation of the stainless steel material, allowing it to stretch and return to its original shape without permanent damage. The AISI 304L stainless steel pipe offers high ductility and low thermal expansion, making it ideal for environments with temperature fluctuations. The AISI 303 fittings, which feature a flange for flat gasket sealing in rotating parts, ensure a secure and leak-free connection while allowing for angular misalignment during installation. The hose integrates seamlessly into potable water systems, providing a reliable solution for temporary or semi-permanent connections. The service life and efficiency of the hose depend on proper installation, regular inspection for signs of wear and adherence to the specified operating conditions.

Service and operation

During regular service checks, inspect the hose for signs of mechanical damage, corrosion or leakage at the connection points. Ensure that the hose remains free from kinks and that the connections are still tight. In case of suspected contamination or after prolonged periods of disuse, flush the hose with clean water to remove any potential deposits. There are no scheduled service intervals specified for this product, but it should be replaced if any visible damage or performance issues are observed.

Frequently asked questions

Can this hose be used in steam systems?
No, the hose is specifically certified for potable water use and is not suitable for steam applications, even though the temperature range includes up to 100°C.

Can the hose be cut to a custom length?
No, the hose is manufactured with fixed lengths and cannot be cut or modified without compromising its structural integrity and sealing properties.

Is the hose suitable for connecting to copper pipes?
Yes, provided that the copper components have 1/2 inch internal threads matching the female-female configuration of the hose and that appropriate anti-corrosion measures are taken.

Can the hose be used in outdoor applications?
Yes, the stainless steel construction provides good resistance to atmospheric corrosion, but the hose should be protected from direct exposure to extreme weather conditions to ensure long-term performance.