Diaphragm single stage automatic switchover board with manual reset & with balanced valve - CEN
Equipment for gas systems > Speciality gas equipment > Supply & switchover boards
Key advantages
  • Possible to connect up to 6 cylinders without using the purge line
  • Outstanding pressure consistency with Balanced Valve Technology.
  • Ready to install for better productivity: all components are pre-mounted on the mounting panel
  • Reduced seat effort increases life of the regulator and reduces the ownership cost
  • Non-whipping filter on bottom inlet improves safety of the operator during the cylinder replacement
  • Can be equipped with an outlet 1/4 turn shut-off valve, with a collection tube, with an alarm box
  • Acetylene and Propane versions on demand


Female portsG 3/8 (inlet) - G 1/2 (outlet) or 3/8 NPT (inlet) - G 1/2 (outlet)
Seat sealPCTFE
O-ringEPDM - standard FPM
DiaphragmAISI 304 or Hastelloy®
Weight± 13,8 kg
Leak ratew/outlet valve: 1.10-4 mbar ℓ/s He w/o outlet valve: 1.10-8 mbar ℓ/s He
Temperature range-20 to +60 °c
GaugesHigh and low pressure (M10 x 1 or G 1/4)
Inlet pressure200 bar / 300 bar, AD & PR4: 25 bar
Outlet pressure10/16/30/50 bar, AD: 1 bar, PR4: 4 bar
Nominal flow 200 bar version70/110/150/180 Nm3 /h (N2)
Nominal flow 300 bar version50/70/100/130 Nm3 /h (N2)
Nominal flow ad and pr4AD: 6,5 Nm3 /h PR4: 10 Nm3 /h
Oxygen useOK with inlet pressure 200 and 300 bar
Dimensional drawings
Product Configurator
Inlet pressure
Version type
Outlet pressure
Body material
End connections
O-ring material
Outlet valve
EPDM - standard
Downloadable catalogs, brochures
  • Supply and Switchover Boards
    Last update: Mar 17, 2021
    Available in: en/cn/de/fr
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