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
(2) Combinable
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 media | Standard, high and ultra high purity and corrosive gases or liquids |
| Max. working pressure | see table below |
| Pneumatic actuator operating pressure | 0.5 - 0.7 MPa (5 - 7 bar) |
| Temperature range | 3.15 K to 353.15 K (-270°C to +80°C) |
| Flow capacity (cv) | see table below |
| Nominal seat diameter | see 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
Product Configurator
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