FLEXWELL Safety Pipe

Pipe system for installations

FSR 1.01.01

Flexible, double-walled pipe system

with stainless steel inner pipe and

outer containment pipe and perma-

nent leak detection with approval

DIBt Z-38.4-253

1

SYSTEM DESCRIPTION

FLEXWELL Safety Pipe (FSR) was

specially designed for the underground

transport of flammable, water-hazard-

ous fluids. It can be used as a suction or

positive pressure supply pipe. The

FLEXWELL Safety Pipe can be perma-

nently monitored by means of suitable

leak detectors.

CONSTRUCTION

FLEXWELL Safety Pipe is a flexible, per-

manently monitorable, double-walled

pipe system. The FLEXWELL Safety

Pipe consists of a corrugated stainless

steel inner medium pipe, a reinforcing

band and a corrugated outer contain-

ment pipe made of stainless steel. The

annular gap between the inner and out-

er pipes is a surveillance space for leak

monitoring. External corrosion protec-

tion is provided by a PE casing covering

the outer pipe.

RANGE OF APPLICATIONS

• suction pipe

• positive pressure supply pipe

• filling pipe

NOMINAL BORES /

PRESSURE STAGES

FLEXWELL Safety Pipe is available in

nominal bores from DN 12 to DN 150.

It can be operated with positive pressure

up to max. 25 bar.

LAYING THE PIPES

FLEXWELL Safety Pipe can be laid di-

rectly into the trench in one piece. It can

be laid either overground in a trace or

inside of bulidings. The unique corru-

gated 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 flexibility.

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 avail-

able in the FLEXWELL Safety Pipe pro-

gramme.

LEAK MONITORING

The surveillance space between the in-

ner 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.

1) DIBt: Deutsches Institut für Bautechnik / German institut for construction technology

19.08.2024 KIWA Subject to technical changes. Page 4