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Bellows low pressure valve for HP, UHP, cryogenic gases and fluids – SUPRA
SUPRA is a stop globe valve with replaceable bellows sealing. The valve is dedicated to low pressure at low cryogenic temperatures (close to absolute zero). It can be actuated by a manual handwheel or a pneumatic actuator. It is ideally suited for helium and liquid hydrogen, vacuum, pure and ultra pure gases or liquids, combustible gases or liquids, oxidizings gases or liquids, toxic and corrosive gases or liquids, radioactive gases or liquids, noble gases or liquids.

CONSTRUCTION MATERIAL

  Parts Material
Wetted parts Body SS 316L
Seat PCTFE or Vespel
Bellows SS 316L
Head/body seal gasket UNS N02201 (Nickel)
Non-wetted parts Handwheel Anodized aluminium
Actuator Body SS 316L and Painted
anodized aluminium
Others SS 430F and C38500

SURFACE FINISH

- EP4 EP2
Ra 0.8 μm Ra 0.4 μm EP  Ra 0.25 μm EP 

SEAT DIAMETER / FLOW CAPACITY/MAX WORKING PRESSURE 

Valve Seat diameter Flow capacity
(Cv)
Max. working
pressure
SUPRA 8 8mm 0.78 15 bar
SUPRA 12 12mm 2,70 25 bar
SUPRA 20 20mm 4,81 25 bar
SUPRA 32 32mm 15,00 25 bar
SUPRA 50 50mm 34,10 20 bar

All specifications subject to change without notice

MANUAL DIMENSIONS

MAN. S08 MI S12 MI S20 MI S32 MI S50 MI
C 37mm (1.46") 51.5mm (2.03") 51.5mm (2.03") 62mm (2.44") 63mm (2.48")
O 38.5mm (1.52") 55.5mm (2.19") 56.5mm (2.22") 70mm (2.76") 75mm (2.95")
ØB 48mm (1.89") 70mm (2.76") 70mm (2.76") 108mm (4.25") 135mm (5.31")
ØE (up to) 17.5mm (0.69") 31.5mm (1.24") 38.5mm (1.52") 52mm (2.05")  77mm (3.03")
ØV 35mm (1.38") 100mm (3.94")  100mm (3.94") 125mm (4.92") 125mm (4.92")
Hb 300mm (11.81") 382mm (15.04") 382mm (15.04") 427mm (16.91") 473mm (18.62")
He 338mm (13.31") 423mm (16.65") 423mm (16.65")  473mm (18.62") 523mm (20.59")
L 90mm (3.54") 140mm (5.51") 140mm (5.51") 180mm (7.09") 250mm (9.84")
N 45mm (1.77") 70mm (2.76") 70mm (2.76") 110mm (4.33") 150mm (5.90")

PNEUMATIC DIMENSIONS

PNEU. S08 NC/NO S12 NC/NO S20 NC/NO S32 NC/NO S50 NC/NO
C 11mm (0.43")  32mm (1.26") 32mm (1.26") 32mm (1.26") 27mm (1.06")
O 12.5mm (0.49") 36mm (1.42") 37mm (1.46") 40mm (1.57") 39mm (1.53")
ØB 48mm (1.89") 70mm (2.76") 70mm (2.76") 108mm (4.25") 135mm (5.31")
ØE (up to) 17.5mm (0.69") 31.5mm (1.24") 38.5mm (1.52") 52mm (2.05") 77mm (3.03")
ØV 58mm (2.28")  100mm (3.94") 100mm (3.94") 185mm (7.28") 255mm (10.04")
Hb 300mm (11.81") 382mm (15.04") 382mm (15.04") 427mm (16.81") 473mm (18.62")
He 383mm (15.08") 481mm (18.94") 510mm (20.08") 638mm (25.12") 744mm (29.29")
L 90mm (3.54") 140mm (5.51") 140mm (5.51") 180mm (7.09") 250mm (9.84")
N 45mm (1.77") 70mm (2.76") 75mm (2.95") 110mm (4.33")  150mm (5.90")

Dimensions are for reference only and are subject to change without notice

Specifications
Fluid mediaStandard, high and ultra high purity and corrosive gases or liquids
Max. working pressuresee table below
Pneumatic actuator operating pressure0.5 - 0.7 MPa (5 - 7 bar)
Temperature range3.15 K to 353.15 K (-270°C to +80°C)
Flow capacity (cv)see table below
Nominal seat diametersee table below
Certified max. helium outboard leak rate (at max. pressure)≤ 1.10-10 Pa.m3 .s-1
Certified max. helium across the seat leak rate (at max. pressure)≤ 3.10-10 Pa.m3 .s-1
Dimensional drawings
DrawingDrawing
Product Configurator
 
Size
Actuation
Body material
Seat material
End-connection (1)
Surface finish
Options (2)
SUPRA
08
MI
I
/K
BWO
-
-
 
(1) Size to be defined by customer and ROTAREX
(2) Combinable
Downloadable catalogs, brochures
  • Download
    Line Valves for UHP, Speciality and Cryogenic gases and fluids
    Last update: Feb 04, 2022
    Available in: en/FR/CN/KR
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