double containment e (3)

AGRU - Kunststofftechnik GmbHWorldwide Competence in Plastics

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Technical Information

DOUBLE CONTAINMENT

PIPING SYSTEMS


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RANGE OF APPLICATION WELDING METHODS:

- SIMULTANOUS-WELDING- STAGGERED-WELDING

NEW SUPPLY PROGRAM LEAKAGE CONTROL

CONTENT


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outside pipe(cover pipe)

spacers

PEHDPP

PVDFECTFE

PEHDPP

PVDFECTFE

monitored space room

Schematic sketch of the AGRUSAFE double containment piping system

inside pipe(containment pipe)


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Transportation pipelines fordagnerous chemicals:

UNDER-GROUND: ABOVE-GROUND:

Transportation pipelines of dangerous and corrosivemedias through ground waterprotection areas - in industrial plants

- in the chemical industry

- in the pharmaceutical industry

- in the semi conductor industry

Sewage water systems forpharmaceutical wastewater

Sewage water transportationpipelines for dump facilites tocollection basins or to settling basins

Application range


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SIMULTANOUS - WELDING

STAGGERED - WELDING

Welding methods


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Method 1: Simultaneous welding (butt welding)

butt welding seam outside pipe

inside pipe

Connection methods


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SIMULTANOUS - WELDING1. Control the offset at the inside pipe

and afterwards planing the inside and outside pipe

Welding methods


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2. Preheating of the jointing area

SIMULTANOUS - WELDING:

Welding methods


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3.Welding of the inside & outside pipe


Welding methods


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Method 2: Cascade welding (butt welding)

butt welding seam outside pipe

inside pipe

10 - 15 cm

Connection methods


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STAGGERED - WELDING1. Welding of the inside pipe

Welding methods


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2. Welding of the outside pipe with a splitted heating element

STAGGERED - WELDING

Welding methods


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3. Control of the welding beat at the outside pipe

STAGGERED - WELDING

Welding methods


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butt welding seam

outside pipe

inside pipe

10 - 15 cm

sliding socket hot gas welding seam

Method 3: Joining of the outside pipe with sliding socket

Connection methods


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butt welding seam

outside pipe

inside pipe

10 - 15 cm

electric socket

Method 4: Welding of the outside pipe by means of electric socket

Connection methods


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STAGGERED - WELDING SIMULTANOUS - WELDING

In principal no control of theinside pipe welding seam possible

Control of the inside welding seam possible

Less time spent for a welding ( low installing costs)

Outside and inside pipe out of the same material

Difficult installation of theleak detection cable

Higher time expenditure per welding (higher installing costs)

Outside and inside pipes can be a different material

Easier installation of theleak detection cable

Welding methods System comparison


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PEHD/PEHDPP/PP

STAGGERED - WELDING

PEHD/PPPEHD/PVDFPP/PVDF

Standard supply program


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Dimension PEHD/PEHD PP/PPSimultanous - welding

90 32 SDR 17-11

110 - 63 SDR 33-11

160 - 90 SDR 33-17160 - 90 SDR 33-11

STANDARD

200 - 110 SDR 33-17200 - 110 SDR 33-11

280 - 160 SDR 33-11

315 - 200 SDR 33-11355 - 250 SDR 33-11

STANDARD


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BENDS 90 BENDS 45 TEES

REDUCERS END CAPS SPIDER-CLIP DISC-CLIP

Double containment fittings for simultanous - welding


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TYP I

TYP I-A with connectionto single pipe

TYP II with outside shoulder

TYP II-Awith outside shoulder andwith connection to single pipe

Standard design without CUTOUT

Variant C: with CUTOUT

DB - with connectionfor leakage control

Double containment dog bones for simultanous - welding


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DimensionsStaggered - welding

90 - 32 SDR 17-21125 - 63 SDR 17-21160 - 90 SDR 17-33

200 - 110 SDR 17-33280 - 160 SDR 17-33

STANDARD PE/PVDF

90 - 32 SDR 17-11125 - 63 SDR 17-11160 - 90 SDR 17-11

200 - 110 SDR 17-11280 - 160 SDR 17-11

STANDARD PE/PP


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SPIDER-CLIP

BENDS 90 BENDS 45 TEES

REDUCTION E-SOCKET

Double containment fittings for staggered - welding


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Double containment dog bones for staggered - welding

Standard design without CUTOUT

Variant C: with CUTOUT

Dog bone TYP III

Dog bone TYP III-Awith connection to single pipe


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OUTSIDE CONTROLLED VALVE

ACCES TEE

LATERALSTEEREDUCED

Double containment special fitting


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Special fittingoutside controlled ball valve


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Inside and outside pipe are fixed againstthe surrounded area Inside and outside pipe are fixed against

the surrounde area

Inside and outside pipe arefixed together

1. RIGIDE SYSTEM WITHOUT POSSIBILITY OF HEAT EXPANSION

2. RIGIDE SYSTEM WITH HINDERED HEAT EXPANSION

Installation methods


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3. FLEXIBLE SYSTEM



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Result of a NOT very well installed piping system !



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1. input data 2. calculation 3. resultCalculation program


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P inside

P=0

Pressure test on the internal pipe

P outside

P=P outside

Pressure test on the outside pipe

It is necessary that the inner pipe remains under pressure

during testing of the outer pipe to prevent collapsing of the

carrier pipe.

The internal pipe has to be tested first. Upon successful

completion of the inner pipe test the outer pipe can be tested.

Pressure test


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LEAKAGE SENSOR

VISUAL LEAKAGE CONTROL

LEAK DETECTION CABLE

Leakage detection methods


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LEAKAGE SENSOR example for underground installation



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LEAKAGE SENSOR example for above gound installation



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Project: Boeing/USA

Application range


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Project: CNC PP/PP

Application range


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Project: ABBOTT LABSECTFE/PP

Application range


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Project: brewery Zipf / ZipfPEHD/PEHD

Application range


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Project: PWN AndijkPEHD/PEHDVINK_NL

Application range


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Project: CORUS BVPEHD/PVDF

Application range


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Application rangeProject: Petrochemica de Venezuela

PP/ECTFE 250/160 & 315/200


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References:

USA: AT&T/Macungie PA, Bell Labs/Naperville IL,Cessna Air/Wichita KS, Dupont/Niagara Falls NYFord Motor Company/Detroit MI, General Motors/Trenton NJ, IBM/Austin TX, Motorola/Chandler AZ, Texas Instruments/Dallas TX

EUROPE: Frauenhofer Institut/Germany, Voest Alpine/Austria, Flockton/GB, Philips/The Netherlands, Ciba Geigy/Switzerland

ASIA: Sharp/Japan, Samsung/Korea, Tech/SingaporePosco Hls/Korea ...

Application range


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References in the Pharmaceutical Industrie:References in the Pharmaceutical Industrie:PROJEKT DIMENSION PRESSURE RATE MATERIAL

Novartis 355/250 - 250/160 - 160/110 PN 4 / PN 4 PPH/PPH

Yamanouchi 315/225 - 250/160 - 160/110 PN 3,2 / PN 6 PPH/PPH

Leo Laborities 160/110 PN 6 / PN 6 PPH/PPH

Abbott Ireland 315/200 - 250/160 - 160/110 PN 3,2 / PN 6 PPH/PPH

Pharmacia & Upjohn 355/250 - 315/200 - 250/160 - 160/110 PN 3,2 / PN 6 PPR/PPR

Warner Lambert Export Ltd. 355/280 - 315/200 - 250/160 - 160/110 PN 3,2 / PN 6 PPR/PPR

Pfizers 500/355 - 450/315 - 355/250 - 250/160 - 160/110 PN 3,2 / PN4 PPR/PPR

SIFA 160/110 - 110/63 PN 3,2 / PN 6 PPH/PPH

Schering 110/63 PN 10 / PN 10 PPH/PPH

110/50 PN 16 / PN 10 PVDF/PVDF

Uniklinik Jena 110/63 - 160/110 PN 3,2 / PN 6 PEHD/PEHD

Application range


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double containment e (3)

Documents

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welding beat

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chemical industry

pharmaceutical industry

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industrial plants