Diaphragm single stage automatic switchover board with manual reset - TD202
Equipment for gas systems > Speciality gas equipment > Supply & switchover boards
The TD202 switchover board is ideally suited to insure gas supply from many high pressure sources of high purity non-corrosive gases with low flow. The device is dedicated to the supply of gas to analyzers and to the creation of controlled atmosphere in laboratories, control units, and for petrochemical applications.
Key advantages
  • Possible to connect up to 6 cylinders without using the purge line
  • Maintains purity: eliminates cross-flow mixing of supply sources
  • The automatic switchover board does not need to be reset to allow reversal of the cycle
  • Ready to install due with all components pre-mounted on a board
  • Can be equipped with a collection tube on the relief valve and purge outlet
  • Can be equipped with an outlet shut-off valve
  • Using contact gauges, the switchover board can also be equipped with an alarm box to indicate the source status


Product image

Product image

Female portsG 3/8 (inlet/outlet) or 1/4 NPT (inlet/outlet)
Seat sealPCTFE
O-ringEPDM - standard FPM
DiaphragmAISI 304 Hastelloy®
Weight± 13 kg
Leak rate10-8 mbar ℓ/s He
Temperature range-20 to +60 °c
GaugesHigh and low pressure (M10 x 1 or 1/8 NPT)
Inlet pressure200/300* bar
Outlet Pressure10/16 bar
Nominal flow10/10 Nm3 /h (N2)
Oxygen useBrass only with inlet pressure 200 bar
Dimensional drawings
Product Configurator
Body material
Inlet pressure and version type
Outlet Pressure
End connections
O-ring material
Outlet valve
Chrome Plated Brass
Stainless steel
Automatic switch with manual reset
300 bar (4350 psig) Automatic switch with manual reset
10 bar 145 psig
16 bar 232 psig
G 3/8 - Female
1/4 NPT - Female
with gauges - standard
with HP inductive contact gauges
without outlet shut-off valve (standard)
with outlet shutoff valve
Standard configuration
with connected purge and relief valve
Downloadable catalogs, brochures
  • Download
    Supply and Switchover Boards
    Last update: Mar 17, 2021
    Available in: en/cn/de/fr
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