MCDS Series Bidirectional Mass Flow Controllers for Corrosives

Control flow in both directions with the world's first bidirectional mass flow controller for corrosive gases

Starting at

$4,176.00CAD

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MCDS Series Bidirectional Mass Flow Controllers for Corrosives 03755

Sometimes a process is too complex for a standard mass flow controller. Alicat’s multi-directional mass flow controllers consolidate into one instrument what would otherwise require two or three separate devices.

When you need to control the flow of corrosive gases in two directions, choose Alicat’s MCDS series. Control flows into your flowing or closed process in one direction, and then reverse flow with multivariate measurement of flow, pressure and temperature in each direction. Or control flow into a closed process using pressure control while monitoring flow rates, and then vent the volume with no need for additional bleed valves. In this configuration, the valves are upgraded to 303 stainless steel, the sensor to 316L stainless steel, and the elastomers to FFKM. Some corrosive gases require 316L stainless steel throughout the flow path, and in this case, both valves (type PCA) and flow body can be upgraded to 316L stainless steel for full-scale flow ranges of 20 slpm or less.

Alicat’s MCDS series mass flow controllers feature dual digital and analog communications by default and can be ordered with Ethernet/IP, DeviceNet, Profibus or Modbus communications for easy integration into your digital industrial or laboratory network. Other build options include your choice of display, downstream valve, and flow totalizers as well as performance options. Need further customization? Contact us and we’d be happy to help you build the instrument you need.

Each flow controller comes with a NIST-traceable calibration certificate and an Alicat operating manual. Power supply sold separately.

Other Alicat Mass Flow Controllers
The MCD standard configuration controls flow up to 160 PSIA. The MCDW applies our Whisper technology with low pressure drop to bidirectional applications like breathing simulations.

• For aggressive and/or corrosive gases
• Measure mass flow and volumetric flow in both directions, plus absolute pressure and temperature
• Control mass or volumetric flow from a pressurized source or from vacuum
• Control absolute pressure in a flowing process or closed volume
• 50 - 100 ms control response for all configurations
• Numerous user-selectable engineering units
• Digital and analog outputs
• Includes COMPOSER™ gas composition firmware
• Multiple build and performance options
• NIST traceable
• Lifetime warranty

Maximum Available Range	-5000 - 5000 slpm
Minimum Available Range	-0.5 - 0.5 sccm / -500 sμlm - 500 sμlm
Turndown Ratio	200:1
Standard	± (0.8% of the reading + 0.2% of FS in both directions)
Optional High-Accuracy Calibration	± (0.4% of the reading + 0.2% of FS in both directions)
Repeatability	± 0.2% of FS
Typical Control Response Time	50 - 100 ms (as low as 25 ms with PID tuning)
Compatible Gases	130
Operating Temperature	-10°C - 60°C
Max Internal Pressure (Static)	145 PSIG (160 PSIA)
Proof Pressure	175 PSIG (190 PSIA)
STP/NTP Default	25°C & 1 atm STP/0°C & 1 atm NTP
Ingress Protection	IP40
Wetted Materials	MCDS: 303 & 302 Stainless Steel, Viton®, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Brass, 430FR Stainless Steel, Silicon, Glass. MCRDS: 303 & 302 Stainless Steel, Viton®, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, 416 Stainless Steel, Silicon, Glass

• Aggressive and/or corrosive gases
• Automated leak testing with bidirectional flow control
• Testing and characterization of a pressure relief valve

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Brochure - MCDS Series Bidirectional Mass Flow Controllers for Corrosives
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Manual - MCDS Series Bidirectional Mass Flow Controllers for Corrosives
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Data Sheet - MCDS Series Bidirectional Mass Flow Controllers for Corrosives
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