RS PRO Compressed Air Pipe Blue Polyurethane Polyvinyl Chloride 6 mm OD 4 mm ID 30 m 40 bar Flame Retardant WST 174-5728

The RS PRO 174-5728 Compressed Air Pipe is a high-performance industrial tubing solution, combining a blue polyurethane inner tube with a protective polyvinyl chloride (PVC) flame retardant outer cover. This pipe offers a 6 mm outer diameter and 4 mm inner diameter, supplied in a 30 meter length to provide flexibility for a variety of pneumatic and automation installations.

Engineered to withstand maximum operating pressures up to 40 bar, it is ideal for demanding environments like welding facilities, manufacturing plants, and process automation systems. The inner tube is made from 100% ester-based polyurethane, which contains no plasticisers and is compatible with compressed air, a range of gases, some liquids, dry powders, and granules.

For enhanced protection, a 1 mm thick blue flame-retardant PVC sheath covers the tubing, increasing the outer diameter to 6 mm and providing UL94V0-rated self-extinguishing safety. This cover is designed to be removed easily before making pneumatic connections, ensuring simple installation and maintenance. The result is a tube that eliminates the need for expensive metallic braided alternatives, particularly when weld spatter or sparks are a risk.

This RS PRO air pipe delivers excellent resistance to a wide spectrum of chemicals, including mineral and organic acids, oils, greases, alkalis, solvents, petrols, and is also resistant to fungi and moulds. Its construction ensures durable, long-term reliability even in aggressive work environments, and supports an operating temperature range from -15°C to 60°C, meeting the requirements of HVAC, robotics, metering, and control applications.

Key industrial uses include compressed air supply for welding tools, industrial robots, valve and actuator control lines, chemical transfer, lubrication supply, and control instrumentation setups. The blue colour makes pneumatic line identification straightforward and supports organized system layouts.

Each 30 m coil consists of a single continuous tube. The flame retardant sheath is present along the entire length and can be stripped back by the user for pneumatic fittings. The construction optimizes both operator safety and process reliability.

For plant engineers, OEMs, and maintenance professionals, this RS PRO 174-5728 model represents a dependable choice for robust, flame resistant pneumatic plumbing. Explore more industrial compressed air, pneumatic pipe, and tubing solutions from RS PRO and category-leading brands on EnvMart.