Selfa bellows

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Selfa bellows cryogenic valvesmarket segments
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Valves for pure, high purity and UHP gases and
nuclear applications
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Valves for cryogenic applications
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• 3 main applications

• Ultra high purity gas
• Microelectronic
• Photovoltaic
• Nuclear applications
• Cryogenic applications

SELFA Valves
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• Selfa Products 3 main markets
• Final users
• Nuclear industry
• Fundamental research laboratories
• Gas industry
• OEM's
• Installers

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• Final Users Nuclear Industry
• AREVA (Areva NC, Eurodif, Comurhex, etc)
• World leader in nuclear power, from the
  extraction to
• the recycling of the combustible
• Selfa applications
• Valves for UF6 transport (Uranium
  hexafluoride-combustible for nuclear reactor)
  K300 Series
• Special valves for nuclear application from K300
  Series

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• Final Users Industrial Gases
• Air Liquide
• Leader for industrial and medical gas solutions
• Present in 70 countries
• Selfa applications
• Valves for liquid gas production and transport
  K900, HP9000, Supra
• Valves for gas production, storage, filtration,
  etc K300, HP2000
• Valves for combustive gases NF3, SiH4, F2, O2

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• Final Users Industrial Gases
• Linde
• Industrial German gas company
• Present in 100 countries
• Selfa applications
• Valves for gas transport HP2000, K300, K900
• Valves for gas production, storage, filtration,
  etc
• Valves for hydrogen

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• Final Users Fundamental research laboratories
• Atomic research centre CEA, CERN, CNRS
• Nuclear research for civil or military
  applications
• Fundamental research
• Selfa applications
• Valves for glove box K300
• Controlled thermonuclear Fusion (ITER project)
  K300, K900, Supra with metal plug for H3
  (Tritium), D2 (Deuterium), He, Li,

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• OEM's
• Gardner
• Cryogenic tanks and trailers builder
• Cryogenic equipment
• Selfa applications
• Valves for liquid Helium and Hydrogen Supra
• Special stuffing box and cast body valves

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• OEM's
• Air Liquide DMC
• Cryogenic tank builder
• Cryogenic material
• Selfa applications
• K900, Supra

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• Installers
• Boccard
• Construction of industrial piping systems
• Integrator
• Selfa applications
• Specific valves for nuclear application (metal
  plug)
• K300, K900, HP2000-9000
• Cooling system RM Series

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• Installers
• Cegelec
• Cryogenic application for spatial industry
  (Ariane)
• Maintenance marine, airport
• Selfa applications
• K300 K900 Series
• Supra Series for LHe

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• Installers
• ALTAL (Air Liquide group)
• Construction of industrial cryogenic system
• Selfa applications
• Specific cryogenic valves for nuclear research
  and others (metal plug), K300, Supra
• HP2000, HP9000

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• Installers
• Endel (Suez group)
• Energy production
• Gas transport, storage
• Installation
• Selfa applications
• K300, K900
• HP2000, HP9000

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• Advantages for Ultra high purity gas
• Metallic bellows seal type
• very high sealing (1.10-9 mbar.l/sec He)
• Plug material according to the application
• Metal, Ni, PCTFE, PTFE, Vespel
• No pollution
• metal to metal sealing to atmosphere
• (1.10-9 mbar.l/sec He)
• electro-polishing 0.2µm (up to)

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• Advantages for nuclear application
• Forged body
• very small risk of fissure or porosity in the
  body
• Stainless steel parts
• very good compatibility with gas (corrosive
  gases, radioactive gases)

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• Advantages for cryogenic application
• K900, HP9000 and Supra Series
• Temperature range -270C to 250C
• Top entry valve for cold box under vacuum
• Designed for vacuum isolated installation

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Manual Valves
LOW CRYOGENIC APPLICATIONS Operating temperature
goes from - 273 C to 250 C
Pneumatic Valves
Pneumatic Valves
AMBIENT APPLICATIONS Operating temperature goes
from 20 C to 80 C
Manual Valves
K300 Valve 0 to 100 bar
SUPRA Valve 0 to 40 bar
Pneumatic Valves
K serie body
Manual Valves
HP9000 Valve 0 to 240 bar
HP2000 Valve 0 to 240 bar
K900 Valve 0 to 40 bar
Manual Valves
CRYOGENIC APPLICATIONS Operating temperature
goes from - 196 C to 120 C
Pneumatic Valves
Manual Valves
Pneumatic Valves
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• K300 DN8-80 mm
• -20C? 80C
• 0 ? 100 bars
• Stainless Steel body
• Manual or pneumatic
• Options
• Metal plug
• Brass body or other material in bar stock body

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• K900 DN8-80 mm
• -200C? 80C
• 0 ? 100 bars
• Stainless Steel body
• Manual or pneumatic
• Options
• Metal plug
• Brass body or other material in bar stock body

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• HP2000 DN8-12 mm
• -20C? 80C
• 0 ? 240 bars
• Stainless Steal body
• Manual or pneumatic
• Options
• Metal plug
• Bracket nickel perforated sleeve for combustive
  gas

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• HP9000 DN8-12 mm
• -200C? 80C
• 0 ? 240 bars
• Stainless Steel body
• Manual or pneumatic
• Options
• Metal plug

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• Supra DN8-50 mm
• -270C? 250C
• 0 ? 25 bars
• Stainless Steel body
• Manual or pneumatic
• Top entry
• Options
• Vespel plug
• Flange for vacuum isolation

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• RM 100 DN5-32 mm
• -20C? 80C
• 0 ? 30 bars
• Brass body
• Manual
• Options
• Cold application -100C
• Stainless steel end connections

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• RM 900 DN8-32 mm
• -200C? 80C
• 0 ? 30 bars
• Brass body
• Manual

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• RMS DN12-32 mm
• -200C? 80C
• 0 ? 30 bars
• Brass body
• Manual or pneumatic
• Top entry
• Options
• Vacuum isolated flange

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• KD-KY DN 12 to 100 mm
• -20C? 80C
• 0 ? 30 bars
• Stainless steel
• Manual or pneumatic
• High CV value (up to 328)
• Options
• Electro polishing 0.2 µm

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• Non-return valves DN4-80
• -200C? 100C
• 0 ? 200 bars (according to dimensions)

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End connections BW (butt welding) BWO (butt
welding orbital) SW (socket welding) Double ring
fitting Face seal ¼'', 3/8'', ½'',3/4'',1'',1 ½''
gas connection, NPT RBR
Face seal
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• Selfa valve

Pneumatic actuation (here normally closed)
Metal to metal sealing to atmosphere
Bellows seal
Plug (PCTFE, Vespel, Ni, etc)
Nominal diameter