ROTAREXGroup
SELFA bellows valves
Selfa bellows & cryogenic valvesmarket segments
2ROTAREXGroup
SELFA bellows valves
Valves for pure, high purity and UHP gases and nuclear applications
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SELFA bellows valves
Valves for cryogenic applications
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SELFA bellows valves
3 main applications
SELFA Valves
• Ultra high purity gas– Microelectronic– Photovoltaic
• Nuclear applications• Cryogenic applications
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SELFA bellows valves
Selfa Products : 3 main markets
– Final users• Nuclear industry• Fundamental research laboratories• Gas industry
– OEM's– Installers
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SELFA bellows valves
• 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 applicationsValves for UF6 transport (Uranium hexafluoride-
combustible for nuclear reactor) : K300 SeriesSpecial valves for nuclear application from K300 Series
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SELFA bellows valves
• Final Users : Industrial Gases– Air Liquide
• Leader for industrial and medical gas solutions• Present in 70 countries
Selfa applicationsValves for liquid gas production and transport K900, HP9000,
SupraValves for gas production, storage, filtration, etc… K300,
HP2000Valves for combustive gases : NF3, SiH4, F2, O2
8ROTAREXGroup
SELFA bellows valves
• Final Users : Industrial Gases– Linde
• Industrial German gas company• Present in 100 countries
Selfa applicationsValves for gas transport HP2000, K300, K900Valves for gas production, storage, filtration, etc…Valves for hydrogen
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SELFA bellows valves
• Final Users : Fundamental research laboratories– Atomic research centre : CEA, CERN, CNRS
• Nuclear research for civil or military applications• Fundamental research
Selfa applicationsValves for glove box : K300Controlled thermonuclear Fusion (ITER project) : K300,
K900, Supra with metal plug for H3 (Tritium), D2 (Deuterium), He, Li,…
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SELFA bellows valves
• OEM's– Gardner
• Cryogenic tanks and trailers builder• Cryogenic equipment
Selfa applicationsValves for liquid Helium and Hydrogen : SupraSpecial stuffing box and cast body valves
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SELFA bellows valves
• OEM's– Air Liquide DMC
• Cryogenic tank builder• Cryogenic material
Selfa applications K900, Supra
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SELFA bellows valves
• Installers– Boccard
• Construction of industrial piping systems• Integrator
Selfa applicationsSpecific valves for nuclear application (metal plug)K300, K900, HP2000-9000Cooling system : RM Series
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SELFA bellows valves
• Installers– Cegelec
• Cryogenic application for spatial industry (Ariane)• Maintenance : marine, airport
Selfa applicationsK300 K900 SeriesSupra Series for LHe
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SELFA bellows valves
• Installers– ALTAL (Air Liquide group)
• Construction of industrial cryogenic system
Selfa applicationsSpecific cryogenic valves for nuclear research and
others (metal plug), K300, SupraHP2000, HP9000
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SELFA bellows valves
• Installers– Endel (Suez group)
• Energy production• Gas transport, storage• Installation
Selfa applicationsK300, K900HP2000, HP9000
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SELFA bellows valves
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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SELFA bellows valves
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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SELFA bellows valves
Advantages for cryogenic application
• K900, HP9000 and Supra Series– Temperature range : -270°C to +250°C– Top entry valve : for cold box under vacuum– Designed for vacuum isolated installation
ROTAREXGroup
SELFA bellows valves
AMBIENT APPLICATIONS
Operating temperature goes from – 20° C to + 80° C
Pneumatic Valves
Manual Valves
K300 Valve0 to 100 bar
HP9000 Valve0 to 240 bar K900 Valve
0 to 40 bar
CRYOGENIC APPLICATIONS
Operating temperature goes from - 196° C to + 120° C
Pneumatic Valves
Manual Valves
Pneumatic ValvesK serie body
Manual Valves Pneumatic Valves
Manual ValvesHP2000 Valve0 to 240 bar
LOW CRYOGENIC APPLICATIONS
Operating temperature goes from - 273° C to + 250° C
SUPRA Valve0 to 40 bar
Manual Valves
Pneumatic Valves
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SELFA bellows valves
K300 DN8-80 mm• -20°C +80°C• 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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SELFA bellows valves
K900 DN8-80 mm• -200°C +80°C• 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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SELFA bellows valves
HP2000 DN8-12 mm• -20°C +80°C• 0 240 bars• Stainless Steal body• Manual or pneumatic
Options• Metal plug• Bracket nickel perforated
sleeve for combustive gas
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SELFA bellows valves
HP9000 DN8-12 mm• -200°C +80°C• 0 240 bars• Stainless Steel body• Manual or pneumatic
Options• Metal plug
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SELFA bellows valves
Supra DN8-50 mm• -270°C +250°C• 0 25 bars• Stainless Steel body• Manual or pneumatic• Top entry
Options• Vespel plug• Flange for vacuum isolation
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SELFA bellows valves
RM 100 DN5-32 mm• -20°C +80°C• 0 30 bars• Brass body• Manual
Options• Cold application -100°C• Stainless steel end
connections
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SELFA bellows valves
RM 900 DN8-32 mm• -200°C +80°C• 0 30 bars• Brass body• Manual
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SELFA bellows valves
RMS DN12-32 mm• -200°C +80°C• 0 30 bars• Brass body• Manual or pneumatic• Top entry
Options• Vacuum isolated flange
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SELFA bellows valves
KD-KY DN 12 to 100 mm• -20°C +80°C• 0 30 bars• Stainless steel• Manual or pneumatic• High CV value (up to 328)
Options• Electro polishing 0.2 µm
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SELFA bellows valves
Non-return valves DN4-80• -200°C +100°C• 0 200 bars (according to
dimensions)
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SELFA bellows valves
End connectionsBW (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 bellows valvesSelfa valve
Metal to metal sealing to atmosphere
Bellows seal
Pneumatic actuation
(here normally closed)
Plug
(PCTFE, Vespel, Ni, etc)
Nominal diameter
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