Stainless Steel Extension Hose PROFI S for Drinking Water with Stainless Steel Fittings (1/2" FF, 100-200 cm)

Product detailed description

This stainless steel expansion hose is commonly used in residential and commercial plumbing systems where flexible yet durable connections for potable water are required. Installers often apply it in domestic kitchens, bathrooms, or industrial water supply lines that need temporary or semi-permanent adjustments. Its ability to extend to double its original length makes it ideal for connecting components at varying distances during construction or retrofit projects.

The hose is frequently encountered in situations involving pipe joints with misaligned centres or where space constraints prevent rigid connections. It can also serve as a replacement for damaged hoses in existing systems. The hose’s resistance to corrosion and compatibility with flat gaskets make it well-suited for long-term operation in wet environments and high-humidity areas such as boiler rooms or condensate systems.

Technical parameters

These specifications are essential for determining correct hose size and suitability for specific applications. The operating temperature range (-20 °C to +100 °C) ensures functionality in both cold and warm water installations. The use of 1/2 inch female-female fittings allows direct connection to standard brass or stainless steel valves and fittings without requiring additional adapters. The length range (1000–2000 mm) should be selected based on the maximum anticipated extension needed at the installation site.

Installation and connection

Installers should ensure that both threaded ends are fully engaged and tightened using a wrench to prevent leaks. The hose should be aligned straight between the connected points to avoid kinking or stress on the fittings. Because the hose can stretch up to twice its initial length, it is important to allow sufficient slack during installation to accommodate any movement or thermal expansion in the system.

• Verify that the internal threads match the external threads of the connected components.
• Apply a suitable sealing compound or PTFE tape to the threads to enhance the watertight seal.
• Avoid over-tightening, which may damage the fitting threads or cause deformation of the hose body.
• Ensure that the hose is not twisted or bent beyond its flexibility limits during installation.

Common installation errors include using mismatched thread types, insufficient tightening, or installing the hose in a compressed state, which reduces its ability to extend when needed.

Compatibility and accessories

This hose is compatible with standard 1/2 inch threaded valves, taps, and fittings commonly found in potable water systems. When connecting to a male-threaded component, an FM version of the hose would be more appropriate. For non-potable applications or higher-pressure systems, alternative stainless steel hoses with different material grades may be required. No additional accessories are typically needed for standard installations, although sealing compounds or flat gaskets may be recommended for enhanced durability.

Technical background for designers

The PROFI S hose operates by utilising the inherent elasticity of the AISI 304L stainless steel tube, allowing it to expand and contract while maintaining structural integrity. The use of AISI 304L provides good corrosion resistance and mechanical strength, making it suitable for long-term exposure to water and mild chemical environments. The AISI 303 fittings are designed for easy assembly and disassembly and are manufactured to EN 10226-1 standards for flange connections and flat gasket compatibility.

The hose’s ability to operate within a wide temperature range ensures compatibility with both cold and hot water circuits. In system design, the hose should be placed in locations where flexibility is required to compensate for thermal expansion or vibration. Its performance depends on proper alignment and avoidance of sharp bends or excessive tension during operation.

Service and operation

No scheduled maintenance is required for this hose during normal operation. However, periodic visual inspections are recommended to check for signs of wear, corrosion, or leakage around the fittings. If the hose becomes kinked or deformed, it should be replaced immediately to avoid potential failure. The hose should be kept clean and free from debris to maintain its operational lifespan.

Frequently asked questions

Can this hose be used for hot water applications?
Yes, it is suitable for hot water up to 100 °C according to its operating temperature range.

Is the hose compatible with flat gaskets in flanged connections?
Yes, the fittings are designed for flat gasket use as per EN 10226-1 standards.

Can the hose be cut to custom lengths?
No, the hose is supplied in fixed lengths and cannot be modified without compromising its structural integrity.

What is the maximum pressure rating for this hose?
According to the manufacturer's technical data sheet, the maximum working pressure is 10 bar.