Mass Flow Controllers & Meters

model

LC–Liquid Flow Controllers

Rapid liquid flow control and dispensing

Control liquid flow rates up to 10 lpm, or as low as 0.01 ccm, with the fastest control response available in a liquid flow controller. The optional Precision Dispensing Package adds a flow totalizer and control firmware for easy batch processing.

  • Versatile. Control liquid flow rates with NIST-traceable accuracy, or control pressure while monitoring flow. Calibrations are available for water, methanol, iso-propanol, ethanol, ammonia, dimethylether, iso-pentane, thiophene, iso-octane and heptane.
  • Easy to Use. Monitor live readings of process flow, pressure and temperature, or set up new dispensing batches–all from the front display of the liquid controller.
  • Connected. Easy integration into your digital industrial network with Ethernet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP) or serial communications options.

Performance

  • Available ranges: max 0-10 lpm, min 0-0.5 ccm (see Part Numbers for stock ranges)
  • Turndown ratio: 50:1
  • Calibration accuracy, NIST-traceable: ± 2% of the full-scale range
  • Repeatability: ± 2% of the full-scale range
  • Typical control response time constant: 50-100 ms (as low as 25 ms with PID tuning)
  • No warm-up time required

Operating Conditions

  • Default calibration: water
  • Alternate calibrations (must be requested at time of order): methanol, iso-propanol, ethanol, ammonia, dimethylether, iso-pentane, thiophene, iso-octane, heptane
  • Operating temperature: -10°C (non-freezing) to +60°C
  • Max internal pressure (static): 100 psig (115 psia)
  • Proof pressure: 200 psig (215 psia)

In the box

Valve Options 

  • LC – small proportional control valve for flow ranges between 3 ccm and 500 ccm
  • LC with PCA designation – high-performance proportional control valve for flow ranges of 2 ccm and below
  • LCR – large Rolamite proportional valve for flow ranges greater than 500 ccm

Corrosive Liquids (LCS series)

Instruments in the standard LC series are also available with an optional “S” configuration (LCS) for use with some corrosive liquids. In the basic configuration, we upgrade the elastomers to FFKM. Some corrosive liquids require 316L stainless steel, and in this case we can upgrade the valve (type PCA) and flow body to 316L for full-scale flow ranges of 500 ccm 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)

Alicat’s LC series uses small proportional valves for control at lower liquid flow rates. Controllers operating at 2 ccm or less use high-performance valves for optimal control at these very low flow rates.

LC-0.5CCM-D-PCA11
LC-1CCM-D-PCA12
LC-2CCM-D-PCA13
LC-5CCM-D
LC-10CCM-D
LC-20CCM-D
LC-50CCM-D
LC-100CCM-D
LC-200CCM-D
LC-500CCM-D

Alicat’s LCR series uses nearly frictionless Rolamite valves for control at higher liquid flow rates.

LCR-1LPM-D
LCR-2LPM-D
LCR-5LPM-D
LCR-10SLPM-D

Alicat’s LCS series for corrosive liquids uses small proportional valves for control at lower liquid flow rates. Controllers operating at 2 ccm or less use high-performance PCA valves for optimal control at these very low flow rates. Some corrosive liquids also require PCA valves to establish a 316L flow path.

LCS-0.5CCM-D-PCA11
LCS-1CCM-D-PCA12
LCS-2CCM-D-PCA13
LCS-5CCM-D (-PCA13)
LCS-10CCM-D (-PCA14)
LCS-20CCM-D (-PCA14)
LCS-50CCM-D
LCS-100CCM-D
LCS-200CCM-D (-PCA17)
LCS-500CCM-D (-PCA17)

Alicat’s LCRS series for corrosive liquids uses nearly frictionless Rolamite valves for control at higher liquid flow rates.

LCRS-1LPM-D
LCRS-2LPM-D
LCRS-5LPM-D
LCRS-10SLPM-D

Direct Flow Control for Microfluidics

Control flow rates as low as 0.01 ccm (10 µlm) directly without the need for pressure control over the fluid headspace. Fast-acting valves ensure your flow rate stays where you set it, even as temperature or pressure changes.

Liquid Product Dispensing

Dispense liquid products over a wide range of flow rates with the optional Precision Dispensing Package. Rapid valve response accommodates changing flow requirements and short dispensing periods. Digital feedback from PLC or PC allows realtime changes to maintain optimal process conditions.

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