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SELFA bellows valves

Selfa bellows & cryogenic valvesmarket segments

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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

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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

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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