Spring type check valve for HP, UHP, cryogenic gases and fluids – CAR(S)
Key advantages
  • 100% Helium leak test performed on all valves
  • Individual serial number for full traceability
  • Electropolished surface roughness
  • 100% degreased for Oxygen use
  • Cryogenic extension available
Description

CONSTRUCTION MATERIAL

  Parts Material
Wetted parts Body SS 316L
Seat PCTFE or Vespel
Head/body seal gasket UNS N02201 (Nickel)
Non-wetted parts Head SS 316L

SURFACE FINISH

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

All specifications subject to change without notice

SEAT DIAMETER /MAX WORKING PRESSURE / CRACKING PRESSURE

Valve Seat diameter Max. working
pressure
Cracking pressure Δp
CAR 8 8mm 200 bar (1) 1.00 bar
CAR 12 12mm 200 bar (1) 0.70 bar
CAR 20 20mm 100 bar (1) 0.70 bar
CAR 32 32mm 100 bar (1) 0.35 bar
CAR 50 50mm 45 bar (1) 0.50 bar
CARS 20 20mm 10 bar (1) 0.70 bar

(1) for oxidizing gases (for example O2, NF3 etc.) Max. working pressure 30 bar

MANUAL DIMENSIONS

MAN. CAR8 CAR12 CAR20 CARS20 (2) CARS32 CARS50
ØB 48mm/(1.89") 70mm/(2.76") 70mm/(2.76") 69mm/(2.72") 108mm/(4.25") 135mm/(5.31")
ØE (up to) 22.5mm/(0.89") 31.5mm/(1.24") 38.5mm/(1.52")  34mm/(1.34") 52mm/(2.05")  77mm/(3.03")
He 45mm/(1.77")  75mm/(2.95") 83.5mm/(3.29") 420mm/(16.54") 104mm/(4.09") 128mm/(5.04") 
L 90mm/(3.54") 140mm/(5.51") 140mm/(5.51") 140mm/(5.51") 180mm/(7.09") 250mm/(9.84")
N 45mm/(1.77") 70mm/(2.76") 75mm/(2.95") 65mm/(2.56") 110mm/(4.33") 150mm/(5.90") 

(2) Minimal operation temperature -270° (3.15K)

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 pressure-
Temperature range77.15 K to 523.15 K (-196°C to +250°C)*
Flow capacity (cv)-
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)≤ 1.10-6 Pa.m3 .s-1*
Dimensional drawings
Product Configurator
 
Size
Body material
Seat material
End-connection (1)
Surface finish
Options
CAR
08
I
/K
BWO
-
-
 
(1) Size to be defined by customer and ROTAREX
(2) Minimal operating temperature -270° (3.15K )
Downloadable catalogs, brochures
  • Line Valves for UHP, Speciality and Cryogenic gases and fluids
    Last update: May 17, 2021
    Available in: en/fr
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