• 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
[email protected] - weka-ag.ch