General
Material	PPE
Colour	Grey
Colour code	RAL 7035
Pipe type	medium plastic conduit
Sleeve	single-sided formed
Flame spread	non-flame propagating
Halogen-free	100% halogen-free
Norm	VDE 0605
Circuit integrity	E30/E60/E90
Minimum pressure resistance	750 N/5cm

The FPKu-EM-F-H0 40 from Fränkische Rohrwerke is a medium-sized plastic pipe made of polyphenylene ether (PPE), finished in grey (RAL 7035). It is supplied in rod lengths of 3 metres and features a one-sided formed socket, enabling simple and secure connection of pipe sections. The product is specifically designed for surface mounting installations in industrial and plant engineering, as well as for all standard surface mounting applications. Due to its halogen-free composition, no toxic or corrosive gases are released in case of heat or fire, increasing safety during operation. The product is particularly used in installations where the functional integrity of lines is required, such as in fire protection systems with requirements E30, E60 or E90. The system is tested and complies with standards VDE 0605 and DIN EN 61386-22. The minimum crush strength is 750 Newton per 5 cm, ensuring sufficient mechanical stability for typical installation situations.

Applications
This pipe is intended for surface mounting installations in industrial and technical plants where high mechanical strength and fire behaviour tolerance are required. It is particularly suitable for the installation of electrical lines in areas where functional integrity during a fire (functional retention) is required. Applications include indoor environments and areas with high mechanical stress or increased fire hazard. The halogen-free composition makes it especially suitable for rooms where the spread of smoke or toxic gases must be avoided, such as hospitals, administrative buildings or production halls.

Functions and Equipment in Detail
The FPKu-EM-F-H0 40 is non-flame propagating, meaning it does not burn independently when exposed to open flame and does not propagate the flame. The one-sided formed socket allows for quick and tool-free connection of pipe sections, reducing installation time. The standard grey colour (RAL 7035) ensures discreet integration into technical installations. The PPE material offers high heat resistance and chemical resistance, extending the pipe’s service life in demanding environments.

Technology Explained Simply
The pipe is made of polyphenylene ether (PPE), a thermoplastic polymer known for its high heat and chemical resistance. The halogen-free formulation means the material contains no halogens such as chlorine or bromine, which would release toxic gases when burned. The minimum crush strength of 750 N/5 cm ensures the pipe remains undamaged under mechanical stress, such as during installation or operation. The standard DIN EN 61386-22 specifies requirements for electrical installation pipes, and compliance with VDE 0605 confirms electrical safety. The functional retention classes E30, E60 and E90 refer to the ability of lines to remain operational even after 30, 60 or 90 minutes of fire exposure – an important requirement in fire protection concepts.

Compatibility and Accessories
The FPKu-EM-F-H0 40 is part of a system designed for the installation of lines with functional retention. It can be combined with other system components, such as matching cable glands, junction boxes or mounting brackets, all of which also comply with standards VDE 0605 and DIN EN 61386-22. Using accessories from the same system ensures consistent mechanical and electrical quality, as well as safe installation.

Installation and Mounting
Installation is carried out via surface mounting, with the 3-metre rod length enabling efficient installation. The one-sided formed socket allows easy connection of pipe sections by simply inserting the next pipe into the socket. No additional tools or connectors are required to make the connection. Mounting is done using suitable brackets designed for the system. Installation is typically carried out in straight lines, with bends only performed using appropriate bending aids or bending forms to maintain the mechanical integrity of the pipe.

Operational Advantages
The halogen-free composition reduces the risk of toxic gas formation in case of fire, increasing user safety. The non-flame propagating property prevents rapid fire spread along the lines. The high mechanical strength and heat resistance of the PPE material ensure long service life and low maintenance. Use within the functional retention system (E30/E60/E90) enables compliance with fire protection requirements in critical installations. The one-sided formed socket speeds up installation and reduces labour effort during mounting.