FLEXTRONPURE FLEXIBILITY
Electropolished corrugated hoses in stainless steel
for high-purity semiconductor and fine chemicals applications.

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HIGH-PURITY
HOSES MADE OF STAINLESS STEEL.
IT’S ABOUT KNOW-HOW.
Dockweiler shows how it's done.
Ultra-pure gases are used in sensitive processes. Where they are used, high-purity, electropolished tubing systems
are the first choice. In order to be able to connect components quickly and flexibly, flexible corrugated hoses areused. Another advantage: Vibrations and misalignments can thus be reduced. The disadvantage is that conventional corrugated hoses do not yet achieve the surface purity of electropolished stainless steel tubes systems.
This is exactly where Flextron comes into play: based on many years of experience in the semiconductor industry,
Dockweiler has developed a process for electropolishing corrugated stainless steel hoses. With this special technology, Dockweiler guarantees a surface cleanliness that has previously only been achieved with electropolished tubesystems. The result: Flextron corrugated hoses made of stainless steel. For the first time, it is now possible to deploy
a complete ultra-pure gas supply made of stainless steel with electropolished surfaces. – With Flextron made by
Dockweiler!

Electropolished stainless steel corrugatedhoses of the highest Dockweiler quality:1		

more safety in the production process
thanks to maximum absence of particles

2		

guaranteed roughness in the flexible range:
Ra of ≤ 0,4 / 0,6 µm

3		

Ultron quality: Cleanroom-cleaned
and UHP-packed

fast and flexible also with individual
4		connectionsFlextron corrugated hoses in stainless steel:Electropolishing ensures an optimal surface
quality and a roughness of ≤ 0,4/0,6µm

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faster release of moisturein the system due to smaller surface area3THE FLEXIBLE SOLUTION
WITH THE PURITY OF ULTRON:FLEXTRON.
Flextron DN6 with VCR connection

High-purity corrugated hoses in Dockweiler quality.
Flextron from Dockweiler is manufactured from mechanically corrugated stainless steel tubes. High-quality standard material is stainless steel 1.4404. A stainless steel wire braiding is added for higher pressure resistance. The
unique combination of electropolished surface and flexible corrugated hose minimizes the risk of contaminationand enables gas transport under full UHP conditions throughout the system.
Flextron DN8 with ZeroCon connection

Particle measurement: Flextron compared with a common CFOS quality
Partikelmessung – Flextron vs. CFOS
(ohne und mit Bewegung)Flextron particle size 0,3 µm / 0,2 µm idle
Flextron particle size 0,3 µm / 0,2 µm in motion

Flextron DN6 with optional wire braiding and welding ends

simulation of movement 3simulation of movement 2

simulation of movement 1

Flextron at a Glance:
Parts per ft

Number of particles in sample volume

CFOS quality particle size 0,3 µm / 0,2 µm idle
CFOS quality particle size 0,3 µm / 0,2 µm in motion

Measuring duration (t)Features

Variants

Material

1.4404 UNS S31603 (316L)

System lengths (including welding ends)

6“, 12“, 24“ and 36“ (up to 60“ on request)

Hose diameter

DN 6, DN 10 und DN 20

Hose couplings¼“, 3⁄₈“, ½“, ¾“ , 1“Surface treatment

Chemically cleanedElectropolishedRa ≤ 0,4 / 0,6µm

Proven in numerous tests: Flextron.
Dockweiler Flextron products have undergone extensive testing: bending and continuous stress test according toDIN EN ISO 10380, moisture and particle tests, combined tests, helium leak tests and pressure tests.
The results are impressive: All tests have shown that Flextron delivers almost comparable measurement values as
rigid stainless steel tube systems with high-purity surfaces! And in comparison with corrugated hoses cleaned toCFOS level, the purity of Flextron is 2 times higher (see diagram above).

4Connections

Welding ends
VCR
ZeroConKF- / CF flanges and others on request

Wire braiding (optional)

1.4301 UNS S30403 (304L)

5

EVERYTHING FROM A SINGLE
SOURCE. FOR HIGHEST PURITY.
ALL FROM DOCKWEILER.

For UHP requirementsof the semiconductor industry andfine chemicals suppliers.
Advantages at a glance:• Only with Flextron does a UHP gas system meet the highest purity requirements – from thegas tank to the production facilities.
• Fast and flexible connection of system components to the ultra-pure gas supply.
• Electropolishing cleans the surface – the particle generation is reduced to a minimum.
• The smoothed surface minimizes the required flushing and evacuation time.
• The electropolished corrugated hose made of stainless steel guarantees a homogeneous
passive layer for optimum corrosion protection.
• A wide variety of connection ends allow installation into the overall system.
• Complete UHP stainless steel system from a single source.

More technical advantages of Flextron:• Tightness guaranteed as with a weld seam: with ZeroCon connection.
• Oscillations and/or vibrations in the system can be decoupled with Flextron.
• 	Optimal for compensating installation tolerances as well as narrow dimensions.

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Your contact person

Dockweiler AGAn der Autobahn 10/20
19306 Neustadt-Glewe
GermanyTel.:+ 49 38757 58 0
Fax:
+ 49 38757 58 222
Email: sales@dockweiler.com
Internet: www.dockweiler.com

05/2021