ACU20L Series

The ACU20L is a high-precision series of liquid flow controllers and flow meters. This product line employs a differential-pressure mass‑measurement principle that exhibits no thermal drift and zero response lag, enabling simultaneous display and output of parameters such as instantaneous flow, totalized flow, pressure, and temperature. When control functionality is required, it can be equipped with an electromagnetic proportional control valve and built-in PID regulation.

Range: 2SCCM~60SLM

Category: Liquid Flow

Overview

Applications

Specifications

Dimensions

Software

◆ Differential pressure principle, offering higher accuracy and faster response.

◆Capable of rapidly and accurately measuring the volumetric or mass flow rate of process fluids.

◆ Features uniquely designed vent holes for easy air release.

◆ Instantaneous and cumulative flow rates, as well as temperature, can be displayed simultaneously.

◆ Integrated PID controller for flow regulation

The ACU20L is a high-precision series of liquid flow controllers and flow meters. This product line employs a differential-pressure mass‑measurement principle that exhibits no thermal drift and no response lag, enabling simultaneous display and output of instantaneous flow, cumulative flow, temperature, and other parameters. When control functionality is required, it can be equipped with an electromagnetic proportional control valve and built-in PID regulation.

The ACU20L series liquid flow controllers/flow meters employ an internally compensated laminar‑flow pressure‑drop technology, ensuring that the fluid remains in laminar flow even across a wide flow range.

Glass industrySolar energyAtmospheric MonitoringIndustrial manufacturing
Coal MetallurgyPetroleum and PetrochemicalsEnvironmental protectionVarious instrumental analyses
SeriesACU20L
Model numberLCLMMCMMBCBMHCHM
Range of measurement0–(2, 5, 10…1000) SCCM0-(1,2,3...5)SLM0-(5,6,10...20)SLM0-(40,45...60)SLM
Accuracy±1.0%F.S
Repeatability±2%F.S
Linear±0.5%F.S
Working differential pressure0.1–0.5 MPa (to be specified at the time of order)
Range ratio50:1100:150:1100:150:1100:150:1100:1
Typical response timeController: <0.2 s Flow meter: <0.1 s
Analog quantity0–5 V, 4–20 mA, 1–5 V
Digital quantityRS232/485, MODBUS protocol
Power supply24 VDC, ±15 VDC
Operating temperature10~50℃
Working pressure drop<0.01 MPa
Work stress1MPa
Electrical connectionDB9 port, RJ11
Protection ratingIP40
Leak rate1×10 -9 Pa m 3/S
ValveValve normally closed/Valve normally closed/Valve normally closed/Valve normally closed/
Base materialStainless steel
Sealing materialFluororubber, chloroprene rubber, nitrile rubber, perfluoroether, metal seals, and others
Body threadG3/8 internal threadG1/2 internal thread
JointFerrules, ferrule fittings, quick-connect couplings, VCR fittings, flanges, etc.

ACU20L-LC Dimensional Drawing

ACU20L-LM Dimensional Drawing

ACU20L-MC Dimensional Drawing

ACU20L-MM Dimensional Drawing

ACU20L-BC Dimensional Drawing

ACU20L-BM Dimensional Drawing

ACU20L-MM Dimensional Drawing

ACU20L-BC (Low Differential Pressure) Dimensional Drawing

ACU20L-BM (Low Differential Pressure) Dimensional Drawing

Mass Flow Measurement and Control System V5.0