Stainless Steel Extension Hose PROFI S for Drinking Water with Stainless Steel Fittings (1/2" FF, 75-150 cm)

Product detailed description

This stainless steel extension hose is commonly used in residential and commercial plumbing systems where flexible, durable connections are required for potable water supply lines. It is ideal for situations where temporary or semi-permanent extensions are needed between fixed components such as valves, taps, or appliances. The hose’s adjustable length allows for precise fitting without the need for cutting or welding, making it suitable for retrofitting or emergency repairs in kitchens, bathrooms, or industrial water distribution systems.

With a working temperature range of -20 to 100 °C and a maximum working pressure of 10 bar, the hose is suited for both cold and warm water applications. Its flexibility and resistance to corrosion make it particularly useful in environments where exposure to moisture or fluctuating temperatures is expected. The FF (female-female) configuration ensures compatibility with standard pipe fittings and valves, simplifying installation and reducing the risk of leakage.

Technical parameters

Use	drinking water
Thread	1/2 inch
End fittings	FF
Length	750-1500 mm
Pipe material	stainless steel AISI 304L
Fittings material	stainless steel AISI 303 according to EN 10226-1
Operating temperature	-20 °C to +100 °C
Hygienic test	HK/W/0728/01/2014, SZU Brno, Nr. 39-10360
Code	YS1/2FFL0750

The hose is manufactured from austenitic stainless steel AISI 304L, which provides high ductility and stretchability. The fittings are made from AISI 303 stainless steel, conforming to EN 10226-1 standards. The hose can be stretched up to double its original length, allowing for lengths between 750 and 1500 mm depending on the initial size. The operating temperature range of -20 to 100 °C makes it suitable for both hot and cold water systems. These parameters are essential for selecting the correct hose length and verifying compatibility with system pressure and temperature conditions.

Installation and connection

Begin by measuring the distance between the two connection points to determine the required hose length. Ensure that the hose is fully retracted before installation. Thread the female ends onto the corresponding male fittings, ensuring a secure fit without over-tightening, which can damage the threads or cause stress on the hose body. Apply a flat gasket if necessary, especially in rotating parts, to prevent leakage and ensure a tight seal. After installation, visually inspect the hose for kinks or twists that could restrict flow or cause premature failure. A final pressure test should be conducted to confirm there are no leaks at the connections.

Compatibility and accessories

This hose is compatible with standard pipe fittings and valves that accept 1/2 inch internal threads. For systems requiring different configurations, such as FM (female-male) or other thread types, alternative models should be selected accordingly. When installing, ensure that all components are made from compatible materials to avoid galvanic corrosion. Additional components such as flat gaskets or sealing compounds may be required for optimal performance, depending on the application and local plumbing codes.

Technical background for designers

The hose operates by stretching the flexible stainless steel tube between two fixed points, allowing for movement and adjustment while maintaining a sealed connection. The design allows for integration into both rigid and flexible piping systems, offering a balance between flexibility and structural integrity. The service life of the hose is influenced by the frequency of stretching and retracting, as well as exposure to extreme temperatures or aggressive media outside the specified range. Proper sizing and installation are critical to maintaining system efficiency and preventing premature wear.

Service and operation

During operation, ensure that the hose is not subjected to excessive bending or twisting, as this can lead to kinking and reduced flow. Periodically inspect the hose for signs of wear, such as surface corrosion or thread damage. If the hose is used in high-temperature environments, verify that it remains within the specified operating range of -20 to 100 °C. There are no specific service intervals outlined in the technical documentation, but regular visual inspections are recommended to ensure continued safe operation.

Frequently asked questions

Can this hose be used with hot water up to 100 °C?
Yes, the hose is rated for operating temperatures up to 100 °C, making it suitable for hot water applications such as domestic heating systems or dishwashers.

Is the hose compatible with standard 1/2 inch fittings?
Yes, the FF configuration ensures compatibility with standard 1/2 inch internal thread fittings, allowing for straightforward installation in most plumbing systems.

How much can the hose be stretched during installation?
The hose can be stretched up to twice its original length, allowing for a range of 750 to 1500 mm depending on the initial size selected.

Are the fittings made from the same material as the hose body?
No, the hose body is made from AISI 304L stainless steel, while the fittings are made from AISI 303 stainless steel, which is specifically chosen for its machinability and thread conformity according to EN 10226-1.