Mass Flow Controllers

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MC–Gas Mass Flow Controllers

Responsive gas flow control that suppresses pressure fluctuations

An excellent MFC 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. MC series flow controllers can temporarily flow liquids without getting destroyed. For environmental hardiness, we can build your MFC with IP66 ingress protection.

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Performance

Available ranges: max 0-5000 slpm, min 0-0.5 sccm/0-500 sμlm (see Part Numbers tab for stock ranges)
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

Mass flow controller (power supply sold separately)
NIST-traceable calibration certificate
Alicat operating manual

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, see below)

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

Flow totalizer
Integrated potentiometer control
High-accuracy or custom calibration

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

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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

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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

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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

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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

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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

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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

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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.

See the full app note here.

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.

See the full app note here.

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.

See the full app note here.

Learn More

Brochure Manual MCP Specs MCS Specs MC Low Flow Specs MC Mid Flow Specs MC High Flow Specs

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Mass Flow Controllers & Meters
Mass Flow Controllers
BIO Series Mass Flow Controllers & Meters for Bioprocessing

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BIO Series Mass Flow Controllers & Meters for Bioprocessing

Unmatched reliability, extreme flexibility and precise measurements in the world’s only mass flow controller for bioprocessing

Experience the Alicat difference – where modern design and solid state construction provide solutions for many applications. Alicat, the world’s fastest flow controller company, now offers the first mass flow controllers built specifically for the needs of bioprocessing professionals – the BIO series: Proven Mass Flow Performance for Bioprocess & Bioreactor Applications. These units are designed specifically for professional engineers involved in bioreactor construction and upstream or downstream processes. They offer the highest reliability in the industry with an unprecedented lifetime warranty and resistance to in-line water contamination.

Request a Quote Today.

Reliable, Adaptable and Compatible Flow Control

Extremely low zero drift ensures long term measurement stability
Resistance to process water contamination with a lifetime warranty
High contrast ultra-sharp color display
ASME recommended materials including 316L stainless steel and USP Class VI FDA-grade certified elastomers
Gas Select feature enables exchange of CO2, Air, O2, N2 or over 100 other gasses without re-calibration or loss of accuracy
Drive Display for monitoring of in-line process health and control performance
IP66 ingression protection option available

Flexible Configuration, Customized for Your Needs

Built with your preferred industrial protocols and Pharma 4.0 in mind
Upgrade manual systems, such as rotameters, to higher precision controlled and monitored mass flow
Wide range of flow rates – from 1SCCM up to 5000SLPM
Controllable ranges exceeding 10,000:1 eliminate the need for multiple gas lines
Ultra-fast 10ms response times enable high speed data logging and control
On-site calibration tools available – Never return a unit
Flexible process connections (SAE standard)

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Wide range flow rates and compatibility with multiple gasses eliminates unnecessary piping

10-50 SLPM
50-200 SLPM
200 – 1,000 SLPM

FDA-grade elastomers prevent contamination

Backflow tolerance with zero calibration drift

316L stainless steel for durability and stability, with a lifetime warranty

See Product Spec Sheets For Full Specs

Optimizing Bioreactor Production

Bioreactors are used in a growing number of applications, from producing bio-adaptive medicines or environmentally friendly fertilizers and pesticides, to brewing beer, refining ethanol and treating wastewater. The increase in biologics production and single use reactors has led to a need for even greater precision and flexibility in instrumentation.

See the full app note here.

Elastomer Considerations for Bioreactors

Biocompatible wetted materials are important to avoid contamination. At Alicat Scientific, we are very aware of the need to prevent contamination of the fragile bioprocessing ecosystem. Including importance of appropriate wetted materials, minimal outgassing and products free from contamination. Alicat BIO Series flow meters and controllers, can help ensure that fast, precise and uncontaminated flow is always in your process.

See the full article here.

High Flow Control for Gasification

Alicat Scientific Mass Flow Controllers can be used in multiple areas of the gasification process: combustion, clean-up reactors, safety, & quality control. Get more precise syngas production, redundancy between units and extremely fast control. Alicat’s MCR controllers with near-frictionless Rolamite proportional control valves- rapidly & precisely control flow rates up to 5000 SLPM. With accuracy of +/- (0.8% of reading + 0.2% of full scale range) to high flow rates, precise composition can be ensured.

See the full app note here.

Lowered Cost and Increased Speed for Biologics Production

With protocols for bioprocessing now firmly established, there is an increasing focus on reducing the cost of producing biologics, biosimilars, mABs and other modern medicines that require bioreactions and current trends toward single use bioreactors. You can reduce your cost per run and extend your processes with Alicat’s astonishing mass flow accuracy as low as .1% of full scale and unbeatable repeatability of +/- .02% of full scale readings.

See the full app note here.

Aerobic vs Anaerobic Wastewater Treatment: An Overview

Bioreactors are now a common part of wastewater treatment. Alicat’s revolutionary differential-pressure based mass flow controllers allow for extreme flexibility in mass flow control and the response times needed to make this process efficient and cost effective.

See the full article here.

Communications Protocols:

RS-232/Analog
RS 485/Analog
Modbus over 232/Analog
Modbus over 485/Analog
Profibus via RS-485
Ethernet IP
DeviceNet + RS-232
Modbus TCP/IP
EtherCAT

See Product Spec Sheets For Full Specs

Learn More

Brochure BIO Controller High Flow Specs BIO Controller Mid Flow Specs BIO Controller Low Flow Specs BIO Meter High Flow Specs BIO Meter Mid Flow Specs BIO Meter Low Flow Specs

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Mass Flow Controllers & Meters
Mass Flow Controllers
BASIS–OEM Gas Mass Flow Controllers

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BASIS–OEM Gas Mass Flow Controllers

Essential flow control for OEM applications

BASIS™ mass flow controllers offer repeatable, reliable gas flow control in a compact, economical package for high-quantity orders. Designed for stress-free integration within original equipment manufacturer (OEM) products, BASIS features a small footprint, high-accuracy MEMS sensor and Alicat’s leading fast valve control.

Reliable. BASIS controllers won’t let you down. NIST-traceable accuracy and repeatable control ensure that your product works the same on Day 700 as it did on Day 1.
Responsive. Pressure spikes won’t ruin your day. Industry-leading control speed and PD valve tuning lets BASIS mass flow controllers get ahead of the unexpected.
Compatible. Do more with BASIS controllers. A small footprint, calibration for multiple gases and dual analog-digital communications give your team greater design flexibility.

Performance

Available ranges: 0-100 sccm, 0-1000 sccm, and 0-20 slpm (see Part Numbers)
Operating range (Turndown ratio): 200:1 (1, 20 and 50 slpm) or 100:1 (100 sccm)
Calibration accuracy, NIST-traceable: +/- (1.5% of the reading + 0.5% of the full-scale range)
Repeatability: 0.5% of the full-scale range
Typical control response time constant: 100 ms (adjustable with PD tuning)
Warm-up time: 70 ms to full accuracy spec

Operating Conditions

Compatible gases: Air, Ar, CO2, N2, O2, N2O (selectable over serial connection); He or H2 calibration (for use with one gas only) also available at time of order
Operating temperature: 0°C to +50°C
Max internal pressure (static): 145 psig (160 psia) for 0-100 and 0-1000 sccm ranges; 60 psig (75 psia) for 0-20 slpm ranges
Proof pressure: 175 psig (190 psia)
STP: 25°C & 1 atm (14.696 psia)

In the Box

BASIS mass flow controller (power supply sold separately)
NIST-traceable calibration certificate
Alicat operating manual

Accessories (sold separately)

Find accessories

Build Options

Communications protocols (0-5 Vdc analog, RS-232, RS-485, Modbus-RTU)
Process connections (NPT or SAE)
Multi-gas calibration (Air, Ar, CO2, N2, O2, N2O)
Single-gas calibrations (He, H2)

BC

BC-C0100 (1-100 sccm)
BC-C1000 (10-1000 sccm)

BC-L0020 (0.2-20 slpm)

Flow Control for OEM Gas Analyzers

Ensure measurement accuracy in OEM analyzer products. Fast valve response and high accuracy make for repeatable and stable gas flows to the analyzer sensors. Small size, instant control readiness and dual communications make BASIS easy to build into end user products.

Automated Gas Mixing

Fill your gas mixing cabinets with responsive BASIS mass flow controllers that are ready in an instant for flow measurement at full accuracy. Fast analog and digital feedback to a PLC or PC allows real-time changes to the flow rate setpoint to maintain desired gas mixture composition.

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Brochure Manual Specs

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Mass Flow Controllers & Meters

Pressure based mass flow instrumentation for top performance.

MC–Gas Mass Flow Controllers

MCW – Whisper Series : Low Pressure Drop Gas Mass Flow Controller

BIO Series Mass Flow Controllers & Meters for Bioprocessing

MCQ–High Pressure Gas Mass Flow Controllers

MCE and MCV–Vacuum Gas Mass Flow Controllers

BASIS–OEM Gas Mass Flow Controllers

Mass Flow Controllers & Meters