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Flexwell Safety pipe technology

Flexwell Safety pipe technology
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Flexwell Safety pipe technology

Product catalog summary
System Description
The FLEXWELL® Safety Pipe is a double-walled, flexible pipe system designed for transporting hazardous fluids. It includes a leak detection system compliant with European safety standards, with dimensions from DN 12 to DN 100, a pressure range of 25 bar, and a temperature range of -10°C to +50°C. It is approved under DIBt Approval Number: Z – 38.4 - 253.
Leak Monitoring
The system features a surveillance space for continuous leak monitoring using pneumatic devices, preventing fluid escape and providing acoustic and optical leak alarms. It complies with Class I European safety standards.
Installation and Laying
Installation is straightforward, allowing for continuous lengths up to 1000 meters, suitable for underground or above-ground laying. Flexible pipes accommodate directional changes, and installation is performed by accredited specialists with optional BRUGG support.
Advantages
The system offers operational safety and economic benefits, such as easy checks without downtime and reduced testing requirements. It is a non-weld system with no molded fittings along the pipe route, and BRUGG provides comprehensive installation services.
Product Overview
The document details specifications for components like piping, connecting fittings, through-connections, elbows, and T-pieces, describing type, nominal bore, pressure, connector type, material, and worksheet reference.
Construction
The FLEXWELL® Safety Pipe consists of a corrugated inner pipe, surveillance space, corrugated outer pipe, corrosion-proof PE casing, and connecting fittings. Quality and material tests are conducted by external agencies and internal quality assurance departments.
Specifications
The document lists specifications for components, including dimensions, materials, and pressure stages. Components are primarily made from stainless steel materials 1.4404/1.4571 for parts in contact with the medium and 1.4301 for outer parts, with a pressure stage of PN 25.
Materials and Components
Flanges and collars are made according to DIN EN 1092-1 standards. O-rings are made of Viton, with alternatives available based on the substances being transported. All parts are made of stainless austenitic steel, with specific material numbers provided.
Installation Instructions
Split loose flanges should be installed staggered 90° in reverse order. Only BRUGG solder Type BRL 8.50.34 is recommended. Insulation should be done using suitable materials as per DIN 30762.
Joining Methods
The document specifies TIG welding and hard soldering for integrated connections.
Additional Features
Monitorable elbows and T-pieces with flanged connections are available, complete with assembly and tested for quality. Longer through-connections are available upon request.
Company Information
Brugg Rohrsystem AG and BRUGG Rohrsysteme GmbH are responsible for these products, offering customer-specific solutions and an international network of partners for support.
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Catalog excerpts

Flexwell Safety pipe technology-1

FLEXWELL® Safety Pipe Pipe systems for installations Technical details

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Flexwell Safety pipe technology-2

FLEXWELL® Safety Pipe Notes 08.04.2013 - T - page 2 Subject to technical changes. BRUGG PIPESYSTEMS Flexible solutions

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Flexwell Safety pipe technology-3

FLEXWELL® Safety Pipe Contents System description System description FLEXWELL® Safety Pipe System description FLEXWELL® Safety Pipe - Leak monitoring Product overview - Piping/Connecting fittings TIG welding Product overview - Connecting fittings GRAPA graphite compression joint Product overview - Through-connections Product overview - Elbows, T-pieces Piping FLEXWELL® Safety Pipe with stainless steel smooth-bore inner pipe, stainless steel outer pipe and PE casing FLEXWELL® Safety Pipe with stainless steel inner pipe, stainless steel outer pipe and PE casing Connecting fittings Connecting fitting...

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Flexwell Safety pipe technology-4

FLEXWELL® Safety Pipe System description Construction and function The FLEXWELL® Safety Pipe is a: - double-walled, monitorable, flexible and factory produced pipe system with all necessary quality tests - approved for the transport of water-hazardous, flammable or otherwise dangerous fluids - recognized and approved leak detection system - Dimensions: DN 12 – DN 100 - Pressure range: 25 bar, PN 25 - Temperature range: –10 °C and +50 °C - DIBt Approval Number: Z – 38.4 - 253 Construction of the FLEXWELL® Safety Pipe: Leak monitoring 1 corrugated inner pipe (1.4404/1.4571) 2 surveillance space...

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Flexwell Safety pipe technology-5

FLEXWELL® Safety Pipe The FLEXWELL® Safety Pipe is permanently monitored using pneumatic leak detection devices/leak detectors. These regulate the monitoring pressure in the surveillance space and register any changes of pressure which may occur. The surveillance space prevents the uncontrolled escape of the transport medium into the environment in the event of a leakage. The surveillance space must be constructed in such a way that the proper functioning and operating safety of the leak detection system is ensured under all operating conditions. In the case of a leakage the alarm is given by...

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Flexwell Safety pipe technology-6

I FSR 4.110 Version TypeFSR Nominal bore/ Connector DN/DN 12 Pressure Connector Type of joint inner/outer PN 25 smooth-bore inner pipe corrugated outer pipe 25 corrugated inner pipe corrugated outer pipe collar with split loose flange collar FSR 4.211 Connecting fitting external R thread socket with FSR 4.221 collar with split loose flange collar FSR 4.216 and monitorable sealing surface 1.4404 with O-rings (Part 1) TIG welding/hard soldering 25 collar with split loose flange collar FSR 4.217 and monitorable sealing surface 1.4404 with O-rings (Part 2) TIG welding/hard...

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Flexwell Safety pipe technology-7

I FSR 4.111 Version TypeFSR Nominal bore/ Connector DN/DN 12/ 12 Connecting fitting Pressure Connector Material Worksheet Type of joint inner/outer No. compression-type screwed joint/ graphite screwed joint 10 welded end in contact FSR 4.222 graphite seal/hard soldering with medium external thread in contact FSR 4.223 graphite seal/hard soldering with medium 10 collar with split loose flange in contact FSR 4.224 graphite seal/hard soldering with medium 1.4404 outer 1.4301 graphite seal/ with medium shaped ring screw joint 1.4404 graphite seal/ with...

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Flexwell Safety pipe technology-8

Connector Type of joint inner/outer TIG welding/hard soldering Material Worksheet No. collar FSR 4.401 25 TIG welding/hard soldering with medium 1.4404 outer 1.4301 in contact FSR 4.404 shaped ring-screw joint 08.04.2013 - T - page 8 Subject to technical changes. BRUGG PIPESYSTEMS Flexible solutions

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Flexwell Safety pipe technology-9

FLEXWELL® Safety Pipe Product overview Elbows, T-pieces Version Connector Type of joint inner/outer Material Worksheet complete assembly 25 TIG welding/hard soldering in contact FSR 4.413 complete assembly 25 TIG welding/hard soldering in contact FSR 4.433 08.04.2013 - T - page 9 Subject to technical changes. BRUGG PIPESYSTEMS Flexible solutions

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Flexwell Safety pipe technology-10

FLEXWELL® Safety Pipe FLEXWELL® Safety Pipe with stainless steel smooth-bore inner pipe, stainless steel outer pipe and PE casing FLEXWELL® Safety Pipe Type FSR 13/25 PE casing corrugated stainless steel outer pipe (1.4301) smooth-bore stainless steel inner pipe 15 x 1 * Volume Weight Bending Article No. inner pipe surveillance space radius * inner pipe: Material No. 1.4404/1.4571 Type ID/OD DN PN d D PE 08.04.2013 - T - page 10 Subject to technical changes. BRUGG PIPESYSTEMS Flexible solutions

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Flexwell Safety pipe technology-11

FLEXWELL® Safety Pipe FLEXWELL® Safety Pipe Type FSR 30/48 - FSR 127/175 * inner pipe: Material No. 1.4404/1.4571 Type ID/OD DN PN d D PE Volume Weight Bending Article No. WT inner pipe surveillance space radius Subject to technical changes. BRUGG PIPESYSTEMS Flexible solutions

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Flexwell Safety pipe technology-12

FLEXWELL® Safety Pipe Connector: pipe 15 x 1 Pressure stage PN 25 shrink sleeve or tape overlaps connector for leak detector or test valve connecting fitting Material No. 1.4571/1.4404 brass, not in contact with medium graphite Materials: stainless steel Connecting fitting: Sliding collar: Sealing ring: Type ID/OD DN l L appr. x Article No. 08.04.2013 - T - page 12 Subject to technical changes. BRUGG PIPESYSTEMS Flexible solutions

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Flexwell Safety pipe technology-13

FLEXWELL® Safety Pipe Connecting fitting with collar and split loose flange Joining method: TIG welding/hard soldering FLEXWELL® Safety Pipe Type FSR 30/48 to FSR 127/175 pressure stage PN 25 shrink sleeve Version: Collar and split loose flange according to DIN EN 1092-1 Material: Threaded socket made of material no. 1.4404/1.4571 flange made of material P265GH/P250GH, hot-galvanised Installation instruction for split loose flange: The splitting of the loose flange needs to be installed staggered Type ID/OD DN d1 Flange acc. to DIN EN 1092-1 l L * Screw length is given for the connector to...

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Flexwell Safety pipe technology-14

FLEXWELL® Safety Pipe Type FSR 30/48 to FSR 127/175, pressure stage PN 25 shrink sleeve TIG welding stainless steel inner pipe Version: Collar and split loose flange acc. to DIN EN1092-1 Material: Threaded socket made of material no. 1.4404/1.4571 Flange made of material no. 1.4404/1.4571 Installation instruction for split loose flange: The splitting of the loose flange needs to be installed staggered 90° in reverse order. Flange acc. to DIN EN 1092-1 l L Article No. without measuring branch DN D 0 k screws* appr. split loose flange mm mm pcs. mm mm stainless steel 1.4404...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.