• Know-How

• Quality

• Flexibility

www.weka-ag.ch

Headquarters

Baeretswil - 25 km south-east from Zürich

Location

Subsidiary

La Chaux-de-Fonds,

the Swiss watch manufacturing

capital , approx. 20km from Neuchâtel

Our background

• Foundation of WEKA AG in 1940

• Since 2001 member of the ARCA Flow Group, headquarters in Tönisvorst, near Düsseldorf, Germany

• Total 80 employees, incl. 13 apprentices

• More than 90% of the turnover is realized by worldwide export

Our business:

• Instruments for level measurement of liquids, based on the magnetic float principle

• Cryogenic components for cryogenic applications

• MicroFlow & LowFlow valves

• Stainless steel needle valves

• Services for specific centres of competence

Our strength:

• Constant development and design addressing market needs

• Professional and quality minded manufacturing

• Tailor-made solutions for specific customer requests

• Extensive experience and professional know-how with standard instruments and components

ARCA Regler GmbH

Tönisvorst, Germany

Valves

www.arca-valve.com

Subsidiaries

Strotzbüsch, Germany

Dresden, Germany

ARTES Valve &

Service GmbH

Berlin, Germany

Control Valves

www.artes-valve.com

von Rohr Armaturen AG

Muttenz, Switzerland

Valves

www.von-rohr.ch

von Rohr ARCA BV

Eerbeck, Netherlands

sales organisation

WEKA Licence Production: Forbes Marshall Ltd., Pune, India

Control Components, Caringbah, Australia

Maxonic Automation Control Co Ltd, Honkong & Shenzen, China

NIC, Johannesburg, South Africa

Fritz Barthel Armaturen, Hamburg, Germany

ARCA Joint Ventures/Partners: Forbes Marshall ARCA Ltd, Pune, India

ARCA Valvulas S.A. de C.V., Mexico-City/Tampioco, Mexico

SAMYANG-ARCA Co. Ltd., Seoul, South Korea

Wuzhong Instrument Co. Ltd., Wuzhong, P.R. China

TOA Valve Co., Ltd., Tokyo, Japan

Feluwa Pumpen GmbH

Mürlenbach, Germany

Pumps

www.feluwa.com

WEKA AG

Bäretswil, Switzerland

La Chaux-de-Fonds, Switzerland

Level Instruments

Valves

www.weka-ag.ch

ARCA Flow Group

Management Team

Reto Sägesser

Manufacturing Manager

Stefan Otto

Product Manager

Level Instruments

Stéphane Mächler

Sales & Marketing Manager

Brigitte Pfenninger

Controlling &

Human Ressource Manager

Fridolin Holdener

Managing Director

Gilles Favre

Product Manager

MicroFlow Valves

Michael Börsch

Engineering & Design

Manager

Visual Level

Indicators

VLI

Tank Level

Instruments

TLI

Stainless Steel

Valves

INOX

MicroFlow &

LowFlow

Valves

Cryogenic

Components

Services

&

Certifications

Overview of our products

WEKA Cryogenic Components

Main fluids He (Helium), H2 (Hydrogen), N2 (Nitrogen), O2 (Oxygen), etc.

• Industrial cryogens (gas liquefaction, refrigeration, distribution)

• Space (ground systems and satellites)

• Basic research, future technologies, plasma and fusion power

• Special applications in highly radioactive environment or high magnetic fields

• Valve blocks and coupling systems for mobile cryogenic tanks for Hydrogen and LNG

• Over 30 years know-how in valve technology and manufacturing experience

• Leading supplier for Cryogenic Components and all further Components around

the cryogenic process

• Cryogenic valves and components for service temperatures down to 1.8K (-271 C)

• DN2 to DN400, high flow rate relative to nominal size due to optimized flow environment

• Standard PN25 and PN50 (special executions up to PN1000)

• Control and Shut-off valves, Transferline Couplings (single, multi-coaxial), Check valves,

Overpressure and Relief valves etc.

• Custom made developments for special applications

Applications

• WEKA elaborates several design tasks as Third Party

linked with Karlsruhe Institute of Technology (KIT)

• Includes engineering and calculating of the valve functions

e.g. of sealing functions, actuator, valve head, valve stem,

position control and test equipment

Cryogenic Pump for ITER (PPC)

• Special valves with metallic double

sealing for cryogenic distillation of x-ray

fluids 3H/T-2H/D

• Overpressure valve for protection of 3H/T

vacuum pumps

• Cryogenic overpressure valves in closed

and high tight processes

Cryogenic and Non-Cryogenic Components for 3H/T technology

• Qualified shut-off valves with integrated cold

actuator for suprafluid He

• Temperatures down to 1.8K

WEKA Cryogenic Components in Space

• Bistable shut-off valves with integrated bellows

actuator for gaseous He

• Temperatures 80K - 320K

• Bättig Cryogenic and Ambiant Valves for ground systems

or rocket engine test benches (ARIANE 4/5, LPSC, DLR,

SNECMA)

• Temperatures 4.2K up to 500K

• Sizes DN6 to DN250

• Pressure up to 600 bar

• Handling of rocket fuels (e.g. Hydrazine)

Valves for the Space Industry and Space Ground Support

• Together with CRPP-EPFL an innovation transfer project

has been started

• Project is promoted by CTI the Swiss Confederation’s

Innovation Promotion Agency

• Objective is to develope and manufacture HTS current

leads as an industrial product

HTS Hybrid Current Leads

• G/LHe; T = 1.9K to amb.

• Safety operation mode or actuated on/off

• Travel feedback

• Extremely low heat load

• Cracking pressure independend of back pressure

• Extensive tests on magnet test benches has shown fully

functional capability

Quench Relief Valves

JET Project, Abingdon GB

• Partly with Linde Kryotechnik CH, formerly Sulzer Bros. CH

• Since 1982 JET specifies WEKA Cryogenic Valves for all cryogenic service, i.e. approx. 300 Valves are in

service for LHe and LN2 as well as Tritium/Deuterium distillation.

IPP (Institute of Plasma Physics), Bhat, Gandhinagar, IN

• Cryogenic Valves for L/GHe distribution for testing of SC cavities

EAST project, IPP (Institute of Plasma Physics), Hefei, CN

• All Cryogenic and Warm Valves for 7kW He Liquefier and distribution system

KSTAR project, NFRI (National Fusion Research Institute), Deajon, KR

• Partly with Air Liquide DTA FR

• Cryogenic and Warm Valves for Refrigerator and L/GHe distribution system

NIFS-LHD project , (National Institute for Fusion Science), Toki, Nagoya JP

• partly with TAIYO NIPPON SANSO CORP. and Fuji Electric Co. Ltd. JP

• Cryogenic valves DN15 - DN125 for 10 kW He Liquefier/Refrigerator

• Cryogenic valves for LHe/GHe distribution for bus line

Our References in Fusion Research Projects (I)

Karlsruhe Institute of Technology (KIT), ITP, formerly Forschungszentrum Karlsruhe , DE

• Since 1984 several cryogenic valves, also with cold actuator for testing of big superconducting solenoids for

fusion science, Cryogenic valves, couplings, check valves for the TOSKA L/GHe distribution system and

upgrade CultKa

• Pilot Cryogenic Valves for ITER prototype superconducting coil

• Engineering tasks as Third Party for ITER Pre-production Cryopump (PPC)

MPI-IPP, Max-Planck-Institut für Plasmaphysik, Garching bei München und Greifswald, DE

• Partly with Linde Kryotechnik CH

• Manual Crygenic valves for prototype testing of shield cooling

• Compact Cryogenic Valves for superconducting Demo Coil for WENDELSTEIN 7-X

• All cryogenic valves for refrigerator and distribution

EPFL/CRPP and PSI, Lausanne and Villigen, CH

• Partly with Linde Kryotechnik CH, formerly Sulzer Bros. CH

• Cryogenic Valves for L/GHe test installations, liquefaction and refrigeration

DIII-D Research Program, General Atomics, San Diego US

• Partly with Linde Kryotechnik CH, formerly Sulzer Bros. CH

• Cryogenic Valves for liquefaction, refrigeration and distribution

Our References in Fusion Research Projects (II)

• Hand operated rising stem needle valves

• DN4 to DN15

• Up to PN 420

• -250 C…+450 C

• Weldneck (wn) or any other connection

• Various options for sealing of body

WEKA Stainless Steel Valves (INOX Valves)

Applications

• Instrumentation valves (also for special requirements such as

high pressure, special f luids, special materials, etc)

• Purge valves

• Fine adjustment of f low rate using precision hand w heel

w ith graduations

• Cold service for temperatures dow n to -250 C

NV

CNV

WEKA Micro Flow & Low Flow Valves

• For liquids and gases

• Adjustment for very low flow rates

• Flow control, pressure control

• Flow -, pressure - and/or temperature control loops

• Low est f low control ( Kv 0.000001)

• Measurement equipment

• Laboratory use

• Test panels

• Gas installat ions (Hydrogen, Helium, Xenon, Oxygen, Krypton, etc.)

• Bott le f illing stat ions

• Industrial installat ions and skids

• Solar energy

• Biogas applications

• Food industry (cold f luids, addit ive metering, etc.)

Applications

Services Member of

Welding technology

• TIG manual / automatic welding

• Plasma welding

• Stellite hard surfacing layer

coating

2 dust free assembly and testing rooms

acc. to DIN25410, category 2

Standard testing facilities:

• Hydro pressure testing up to 500bar

• Helium pressure testing up to 500bar

• Helium leakage testing

• Dye penetration testing (PT)

• Hardness testing on Rockwell (NACE)

• Permeability testing

• Delta ferrite portion measurement

• Integral cold testing facility with LN2 (temperatures approx. – 170 C)

• Testing of welded connections with videoscope

• Material testing with microscope

Mechanical treatment

• CNC machining

• Rolling operations,

superfinish to N1

• Honing, flat grinding

Stainless Steel

Valves

10 %

Tank Level

Instruments

TLI 10 %

Cryogenic

Components

30 %

Visual Level

Indicators

VLI 35%

Total Turnover ~ 10.0 Mio. EUR

(90% Export)

Turnover and Product Share

MicroFlow & LowFlow

Valves

10 %

3rd party services

5 %

Thank you for your attention!

WEKA AGSchürlistrasse 8, CH-8344 Bäretswil

Phone +41 43 833 4343 - Fax +41 43 833 4329

info@weka-ag.ch - weka-ag.ch