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.

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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

	Size	Actuation	Body material	Seat material	End-connection (1)	Surface finish	Options (2)
SUPRA	08	MI	I	/K	BWO	-	-
	Seat Ø8mm 08 Seat Ø12mm 12 Seat Ø20mm 20 Seat Ø32mm 32 Seat Ø50mm 50	Manual MI Pneumatic normally open NO Pneumatic normally closed NC	SS316L I	PCTFE /K PI (Vespel®) /V	Butt welded orbital BWO Butt welded BW Socket welded SW	Ra 0.8µm - Ra 0.4µm (electropolished) EP4 Ra 0.25µm (electropolished) EP2	No option - Bottom support FP Actuator vent for H2 H2 Solenoid valve EV Double limit switches MRE2 Proximity sensors (ATEX) DPI2 Flange for vacuum installation BV Flange for cooling system BT Purge port (1) PGP

I am interested

(1) Size to be defined by customer and ROTAREX
(2) Combinable

Downloadable catalogs, brochures

Line Valves for UHP, Speciality and Cryogenic gases and fluids

Last update: Jan 25, 2023
Available in: en/FR/CN/KR