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    Mass Flow Controllers & Meters

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    MC–Gas Mass Flow Controllers

    Responsive gas flow control that suppresses pressure fluctuations.

     

    Order Directly from Alicat

     

    An excellent mass flow controller needs to do only one thing well: keep the flow rate at your setpoint. Alicat’s MC series gas mass flow controller achieves new setpoints rapidly and stays there, even in the face of pressure spikes. We’ll use your application parameters to customize your valve and PID tuning to ensure that it delivers fast and stable control.

    • Versatile. Control pressure while monitoring flow rates, select another gas calibration on the fly or define your own gas composition with COMPOSER™.
    • Connected. Easy integration into your digital industrial network with EtherNet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP) or serial communications options.
    • Durable. Backed by annual recalibrations and our limited lifetime warranty, an Alicat instrument will keep your process running smoothly, even in challenging environments, for years to come.
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    Performance

    • Available ranges: max 0-5000 slpm, min 0-0.5 sccm/0-500 sμlm
    • Steady state control range: 0.01% – 100% of full scale.
    • Standard accuracy calibration, NIST-traceable: +/- (0.6% of the reading on most products)
    • Optional high-accuracy calibration, NIST-traceable: +/- (0.5% of the reading on most products)
    • Repeatability: +/- 0.1% of reading + 0.02% of full scale
    • Typical control response time constant: 50-100 ms (as low as 25 ms with PID tuning)
    • No warm-up time required

    Operating Conditions

    • Compatible gases: 98 (MC) or 130 (MCS) pre-loaded selectable gas calibrations; additional mixtures definable with COMPOSER
    • Operating temperature: -10°C to +60°C
    • Max internal pressure (static): 145 psig (160 psia)
    • Proof pressure: 175 psig (190 psia)
    • STP/NTP: user-selectable (defaults to 25°C & 1 atm STP/0°C & 1 atm NTP)

    In the box

    Accessories (sold separately)

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    Model Variations

    • Low pressure drop, max 60 psia (MCW)
    • High pressure, 160-320 psia (MCQ)
    • Enclosed valve with SEMI port length (MCE)
    • Pneumatic shut-off valve for vacuum applications (MCV)
    • Aggressive gases (MCS)

    Valve Options 

    Your mass flow controller may be customized with one of the following valving options to ensure optimal performance under your expected process conditions.

    • MC – small proportional control valve for flow ranges of 20 slpm and below
    • MC with PCA designation – high-performance proportional control valve used for some applications with higher pressures
    • MCP – small proportional control valve with the largest orifice (not available for corrosive configurations)
    • MCH – hammerhead configuration, which pairs two small valves working side-by-side as one valve
    • MCR – nearly frictionless large Rolamite proportional valve for flow rates of 50 slpm and above

    Corrosive Gases (MCS series)

    Instruments in the standard MC series are also available with an optional “S” configuration (MCS) for use with corrosive gases. In this configuration, we upgrade the valve 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 we can upgrade both the valve (type PCA) and flow body to 316L for full-scale flow ranges of 20 slpm or less.

    Build Options

    • Communications protocols (analog, RS-232, RS-485, DeviceNet, EtherCAT, EtherNet/IP, Modbus RTU or TCP/IP, PROFIBUS)
    • Displays (monochrome or color, integrated or panel-mount)
    • Process connections (NPT, SAE, AN, BSPP/G, welded compression or VCR/VCO fittings)
    • Elastomers (Viton, FFKM, EPDM, Silicone)

    Performance Options

    See all options

    Alicat’s MC series uses small proportional valves for control at lower flow rates and is suitable for use with non-corrosive gases.

    MC-0.5SCCM-D
    MC-1SCCM-D
    MC-2SCCM-D
    MC-5SCCM-D
    MC-10SCCM-D
    MC-20SCCM-D
    MC-50SCCM-D
    MC-100SCCM-D
    MC-200SCCM-D
    MC-500SCCM-D
    MC-1SLPM-D
    MC-2SLPM-D
    MC-5SLPM-D
    MC-10SLPM-D
    MC-20SLPM-D

    Alicat’s MCP series offers the largest orifice in a small valve format and is suitable for use with non-corrosive gases.

    MCP-10SLPM-D
    MCP-20SLPM-D
    MCP-50SLPM-D
    MCP-100SLPM-D
    MCP-250SLPM-D

    Alicat’s MCH series pairs two small valves working side-by-side as one and is suitable for use with non-corrosive gases.

    MCH-10SLPM-D
    MCH-20SLPM-D
    MCH-50SLPM-D
    MCH-100SLPM-D
    MCH-250SLPM-D
    MCH-500SLPM-D

    MCPH-50SLPM-D
    MCPH-100SLPM-D
    MCPH-250SLPM-D

    Alicat’s MCR series uses nearly frictionless Rolamite valves and a variety of orifice patterns for control at high flow rates and is suitable for use with non-corrosive gases.

    MCR-50SLPM-D
    MCR-100SLPM-D
    MCR-250SLPM-D
    MCR-500SLPM-D
    MCR-1000SLPM-D
    MCR-2000SLPM-D-PAR
    MCR-3000SLPM-D-PAR
    MCRH-5000SLPM-D-PAR

    Alicat’s MCS series uses small proportional valves for control at lower flow rates and is suitable for use with corrosive gases.

    MCS-0.5SCCM-D
    MCS-1SCCM-D
    MCS-2SCCM-D
    MCS-5SCCM-D
    MCS-10SCCM-D
    MCS-20SCCM-D
    MCS-50SCCM-D
    MCS-100SCCM-D
    MCS-200SCCM-D
    MCS-500SCCM-D
    MCS-1SLPM-D
    MCS-2SLPM-D
    MCS-5SLPM-D
    MCS-10SLPM-D
    MCS-20SLPM-D

    Alicat’s MCHS series is suitable for use with corrosive gases and pairs two valves working side-by-side as one to provide greater control at higher pressures.

    MCHS-10SLPM-D
    MCHS-20SLPM-D
    MCHS-50SLPM-D
    MCHS-100SLPM-D
    MCHS-250SLPM-D
    MCHS-500SLPM-D

    Alicat’s MCRS series is suitable for use with corrosive gases and uses nearly frictionless Rolamite valves and a variety of orifice patterns for control at high flow rates.

    MCRS-50SLPM-D
    MCRS-100SLPM-D
    MCRS-250SLPM-D
    MCRS-500SLPM-D
    MCRS-1000SLPM-D
    MCRS-2000SLPM-D-PAR
    MCRS-3000SLPM-D-PAR
    MCRHS-5000SLPM-D-PAR

    Gas sparging for pH control

    Control mass flow rates over a wide flow range with rapid adjustments to accommodate changing flow requirements. Digital feedback from PLC or PC allows real-time changes to the flow rate setpoint to maintain optimal process conditions.

    Gas Sparging

     

    Custom Gas Mixing System

    Mass flow controllers from Alicat are well suited to the creation of custom gas mixing systems. Their inherent flexibility and adaptability may be utilized to great effect in this type of application.

    Custom Gas Mixing

     

    High-Temperature Mass Flow Control

    Alicat’s remote electronics option separates the electronics from the sensors and flow body. This allows for flowing gases at higher temperatures through the flow body without subjecting the controller electronics to temperatures beyond their design.

    High-Temperature Hydrocarbon Distillation

     

    Alicat MC-series mass flow controller

    Mass flow controllers from Alicat

    Learn More
    BrochureManualMC Low Flow SpecsMC Mid Flow SpecsMC High Flow SpecsMCS Specs
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