CEM Evaporator W-202A

3-Way Mixing Valve and Evaporator

  • Accurately controlled gas/liquid mixture
  • Fast response
  • High reproducibility
  • Very stable vapour flow
Get a quote Downloads Datasheet
CEM EvaporatorW-202A

3-way Mixing Valve and Evaporator

Bronkhorst® model W-202A CEM 3-way Mixing Valve and Evaporator is suited for precise vapour flow delivery, composed by mixing up to 120 g/h H2O (320 g/h IPA) with max. 10 ln/min of carrier gas at operating pressures between vacuum and 100 bar. The temperature controlled mixing device is used in combination with  a (thermal or Coriolis) liquid flow meter and an MFC for carrier gas, together forming a Controlled Evaporation and Mixing (CEM) System.

Technical specifications

Measurement / control system
Max. heating temperature200 °C
Heater capacity100 W
Max. Kv-value6,6 x 10-2
Mechanical parts
Material (wetted parts)Stainless steel 316L or comparable
Pressure rating (PN)100 bar a
Max. ΔP5 … 40 bar
(depends on Kv-value; contact your distributor for details)
Process connectionsGas and liquid inlet: compression type or face seal couplings;
Vapour outlet: 1/8" tube (other options on request);
Purge connection: 1/8" OD or 1/8" face seal
Protection classIP40
PlungerKalrez®; other on request
ConnectorAmphenol 6-pin male
Electrical properties
Power supplyMixing valve: +15…24 Vdc +/-10%;
Heater: 44 Vac
Max. power consumptionMixing valve: 4 W (max.);
Heater: 150 W (nominal)
Electrical connection
Control valve options
External actuator options to be connected to the controller
Certification for hazardous areas
Approvals / certificates

Technical specifications subject to change without notice.

For dimensional drawings and hook-up diagrams please visit the product page on our website


CEM brochure
Manual CEM Controlled Evaporator and Mixer
Hook-up diagrams
Dimensional drawing
Dimensional Drawing W102A-W-202A
Dimensions CEM Outlet Adapters