Stainless steel expandable plastic-coated drinking water hose PROFI MW with brass end caps (1/2" FF, 80-160 cm)

Product detailed description

Stainless steel expandable hoses are commonly used in residential and commercial plumbing applications where flexible, yet durable connections are required. These hoses are ideal for connecting water appliances, such as dishwashers, washing machines, and under-sink filtration units. The expandable design allows for easy installation in tight spaces and accommodates variations in pipe alignment. The plastic coating provides additional protection against mechanical damage and corrosion, making it suitable for both indoor and semi-protected outdoor environments.

When working with potable water systems, it is essential to use components that meet hygiene and safety standards. This hose is tested and certified for drinking water use, ensuring it does not leach harmful substances into the water supply. The material combination of stainless steel and brass fittings ensures long-term reliability and resistance to scaling and bacterial growth.

Technical parameters

Code	TMW1/2FFL0800

The hose is rated for a maximum operating pressure of 10 bar and a maximum temperature of 110°C, making it suitable for hot and cold water applications. The expandable design allows the hose to be stretched to twice its original length, which is particularly useful in installations where space constraints or misalignment are common. The 1/2 inch female-female (FF) threaded ends with internal threads ensure compatibility with standard plumbing fittings. These parameters are critical for proper sizing and selection to ensure safe and efficient operation under expected load conditions.

Installation and connection

To install the hose, first ensure that the supply and appliance sides are clean and free of debris. The 1/2 inch internal thread on both ends allows for direct connection to standard brass or plastic fittings. Apply a suitable thread sealant or PTFE tape to the threads before tightening to prevent leaks. It is important to avoid over-tightening, which can damage the brass fittings or distort the hose. A common mistake is failing to account for the hose's expandable nature, which can lead to incorrect length calculations. Always verify the stretched length required for the installation and allow for slight movement to accommodate thermal expansion and contraction.

Compatibility and accessories

This hose is compatible with standard 1/2 inch internal thread fittings used in potable water systems. It is recommended to use with compatible brass or stainless steel valves, filters, and water appliances. Additional components such as shut-off valves, pressure regulators, or water softeners may be required depending on the system configuration. For complex installations, it is advisable to use certified fittings and accessories to maintain the integrity of the drinking water supply.

Technical background for designers

The hose is constructed from austenitic stainless steel (AISI 304L), known for its high ductility and resistance to corrosion. The plastic coating is made from polyolefin, which provides an additional layer of protection against abrasion and environmental exposure. The expandable design allows the hose to adapt to installation challenges without compromising structural integrity. The brass fittings are nickel-plated to prevent oxidation and ensure long-term compatibility with water. The material properties and design make this hose suitable for integration into potable water systems, where hygiene and durability are essential. The service life is influenced by the quality of installation, the operating conditions, and the frequency of use.

Service and operation

Regular inspection is recommended to ensure the hose remains free of leaks, cracks, or signs of wear. Check the connections for tightness and signs of corrosion, particularly on the brass fittings. If the hose is used in high-temperature applications, ensure that the operating conditions do not exceed the maximum temperature rating. There are no specified service intervals in the product documentation, but it is advisable to replace the hose if any damage is detected or if it has been in continuous use for an extended period.

Frequently asked questions

Can this hose be used for hot water applications?
Yes, the hose is rated for a maximum operating temperature of 110°C, making it suitable for both hot and cold water systems.

Is the hose suitable for outdoor use?
While the plastic coating provides some protection, the hose is primarily intended for indoor use. For outdoor applications, additional protection from UV exposure and weather conditions is recommended.

Can the hose be cut to a custom length?
No, the hose is designed to be stretched to twice its original length but cannot be cut or modified after manufacturing.

Can the hose be used with non-potable water systems?
Although the hose is certified for potable water use, it can also be used in non-potable water systems. However, it is not recommended for applications involving chemicals or aggressive media.