FLEXWELL® Safety Pipe Pipe system for installations Flexible, double-walled pipe system with stainless steel inner pipe and outer containment pipe and permanent leak detection with approval Z-38.4-253 System description FLEXWELL® Safety Pipe was specially designed for the underground transport of flammable, water-hazardous fluids. It can be used as a suction or positive pressure supply pipe. The FLEXWELL® Safety Pipe can be permanently monitored by means of suitable leak detectors. Construction FLEXWELL® Safety Pipe is a flexible, permanently monitorable, double-walled pipe system. The FLEXWELL® Safety Pipe consists of a corrugated stainless steel inner medium pipe, a spacer tape and a corrugated outer containment pipe made of stainless steel. The annular gap between the inner and outer pipes is a surveillance space for leak monitoring. External corrosion protection is provided by a PE casing covering the outer pipe. Range of Applications • suction pipe • positive pressure supply pipe • filling pipe Double-walled fittings Monitorable through-connections and T-pieces as well as connectors with measuring branches are all part of the comprehensive range of products available in the FLEXWELL® Safety Pipe programme. Nominal bores / pressure stages FLEXWELL® Safety Pipe is available in nominal bores from DN 12 to DN 100. It can be operated with positive pressure up to max. 25 bar. Leak monitoring The surveillance space between the inner and outer pipes can be permanently monitored by means of suitable positive or negative pressure leak detectors. A wide range of leak detection systems for different areas of application and legal requirements is available. Laying the pipes FLEXWELL® Safety Pipe can be laid directly into the trench in one piece. It can be laid either overground in a trace or inside of bulidings. The unique corrugated pipe geometry of inner medium pipe and outer containment pipe ensures excellent flexibility. It can be cut to the required length at the construction site, laid endlessly and bent through tight radii thanks to its f

corrugated inner medium pipe of stainless steel corrugated outer containment pipe of stainless steel polyethylene casing leak detector pressure reservoir double-walled corrugated FLEXWELL® Safety Pipe with measuring branch and test valve distributor FLEXWELL® Safety Pipe Positive pressure leak detector Technical data FLEXWELL® Safety Pipe Material: Operating pressure inner pipe: Monitoring pressure outer pipe, permanent • inner pipe • outer pipe • armouring • corrosion proofing • vacuum • positive pressure • vacuum • positive pressure 1.4404/1.4571 1.4301 steel PE-LD casing suction pipe up to...