Editorial Technical Reference

Flow Controller

This page explains how Flow Controller is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A device that regulates, monitors, or controls the flow rate of fluids within a pumping system.

View Full Specifications Explore Manufacturing Sources
Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Flow Controller

Definition
A flow controller is a critical component within a pumping system that precisely manages the volumetric or mass flow rate of liquids or gases. It ensures consistent flow delivery, prevents over-pressurization, optimizes energy consumption, and maintains process stability by adjusting valves, pumps, or other actuators based on sensor feedback or setpoint commands. The controller typically integrates a flow sensor, a control algorithm, and an actuating element. It is used in applications where maintaining a specific flow rate is essential for process quality, safety, or efficiency. The device is available in various configurations, with body materials such as stainless steel (CF8M) or brass, and seals made of PTFE. It operates within a flow range of 0.5 to 50 m³/h, with an accuracy of ±1.0% of full scale. The operating pressure range is 1.0 to 1.6 MPa, and the operating temperature range is -40 to 85°C. The power supply is 24 V DC (±10%), and the control signal is typically 4-20 mA. The enclosure rating is IP54 to IP65 (per IEC 60529), and connection sizes range from DN15 to DN100 (per ISO 7005). The weight varies from 2.5 to 15 kg depending on size and material. For proper selection, consider pipe size, required flow, accuracy needs, and environmental conditions. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
Flow controllers typically operate by measuring the actual flow rate using sensors (e.g., differential pressure, turbine, ultrasonic, or Coriolis). This measured value is compared to a desired setpoint. A control algorithm (e.g., PID) processes the error and sends a corrective signal to an actuator (like a control valve, variable frequency drive for a pump, or a solenoid valve) to adjust the flow path or pump speed, thereby bringing the actual flow to the target value. The controller continuously repeats this measurement-comparison-correction cycle to maintain the setpoint despite disturbances such as pressure fluctuations or changes in fluid properties.
Common Materials
Stainless Steel (body/valve), Brass, PTFE/Teflon (seals), Electronic components (PCB, sensors)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flow Range0.5–50 m³/hSelect based on pipe size and required flow.
Accuracy±1.0 % of full scaleHigher accuracy for critical processes.
Operating Temperature-40–85 °COutside range may damage seals.
Power Supply24 ±10% V DCUse regulated supply for stable operation.
Control Signal4–20 mAStandard analog signal for remote control.
Enclosure RatingIP54–IP65IP65 for outdoor or washdown areas.IEC 60529
Body MaterialCF8MStainless steel for corrosion resistance.ASTM A351
Seal MaterialPTFEChemical compatibility and temperature rating.ASTM D4894
Connection SizeDN15–DN100 mmMatch pipe size for proper flow.ISO 7005
Weight2.5–15 kgVaries with size and material.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Flow Sensor
    Measures the actual flow rate of the fluid passing through the system.
    Material: Stainless steel, with sensing elements like piezoelectric crystals or turbine blades
  • Control Valve / Actuator
    Physically adjusts the flow area or pump speed based on signals from the controller to regulate flow.
    Material: Stainless steel, brass, with elastomer or PTFE seals
  • Control Unit (Processor)
    Compares the measured flow to the setpoint, runs the control algorithm (e.g., PID), and generates output signals for the actuator.
    Material: Electronic components on a printed circuit board (PCB)
  • User Interface / Display
    Allows operators to set the flow rate, view current readings, and configure controller parameters.
    Material: Plastic housing, glass or polycarbonate screen, electronic components

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Pumping System
View system integration details
Purge System
View system integration details
Gas Mixing Unit
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 100 bar
flow rate: 0.1 to 1000 L/min
temperature: -40°C to +85°C
slurry concentration: Up to 20% solids by weight
Media Compatibility
✓ Water and aqueous solutions ✓ Hydraulic oils ✓ Chemical process fluids (non-corrosive)
Unsuitable: Highly abrasive slurries with >20% solids or corrosive acids
Sizing Data Required
  • Required flow rate (L/min)
  • Fluid viscosity (cP)
  • System pressure drop (bar)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sensor drift or calibration loss
Cause: Environmental contamination (dust, moisture, chemical exposure), electronic component aging, or improper calibration procedures leading to inaccurate flow measurement and control.
Valve or actuator mechanical failure
Cause: Wear from particulate abrasion in the fluid, corrosion due to incompatible materials or aggressive media, or mechanical fatigue from excessive cycling or over-torquing during operation.
Maintenance Indicators
  • Erratic or unstable flow readings despite stable process conditions, indicating potential sensor or control loop issues.
  • Unusual noises (grinding, clicking, or humming) from the actuator or valve assembly, suggesting mechanical wear, misalignment, or impending seizure.
Engineering Tips
  • Implement a routine calibration and verification schedule using traceable standards, and ensure environmental protection (e.g., sealed enclosures, clean air purges) to maintain sensor accuracy and longevity.
  • Install upstream filtration to remove particulates, select materials compatible with the process media to prevent corrosion, and optimize control parameters to minimize unnecessary cycling, reducing mechanical stress.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 5167 (Flow measurement) ANSI/ISA 75.05.01 (Control valve sizing) CE (Pressure Equipment Directive 2014/68/EU)

Quoted from the published standard.

Manufacturing Precision
  • Flow coefficient (Cv): +/-5%
  • Pressure rating: +/-10% at max operating pressure
Quality Inspection
  • Leakage test (per ANSI/FCI 70-2)
  • Material verification (per ASTM A370)

Manufacturers of Flow Controller

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Pace Pneumatics
Ningbo, Zhejiang, CN
Also makes: Lubrication System, Flow Control Valve, Speed Controller and 8 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Shanghai Automation Instrumentation Co., Ltd
Shanghai, CN
Also makes: Ball Valve, Pressure Controller, Butterfly Valve and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Shanghai Ziasiot Technology
Shanghai, CN
Also makes: Signal Processor, Pressure Gauge/Sensor, Water Level Sensor and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Supply Chain Compatible Machinery & Devices

Heavy-Duty CNC Plasma Cutting Machine

The Heavy-Duty CNC Plasma Cutting Machine is a standalone industrial device designed for cutting conductive metals such as steel, stainless steel, aluminum, and copper alloys.

Explore Specs →
Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

The centrifugal pump impeller is a critical rotating component that converts mechanical energy from the motor into kinetic energy in fluid systems.

Explore Specs →
High-Precision CNC Laser Cutting Machine

Computer-controlled industrial machine using focused laser beams to cut sheet metal with micron-level accuracy.

Explore Specs →

Frequently Asked Questions

What is the flow range of this flow controller?

The flow range is 0.5 to 50 m³/h. Select the appropriate model based on your pipe size and required flow rate.

What is the accuracy of the flow controller?

The accuracy is ±1.0% of full scale. For critical processes, higher accuracy may be required; verify with the manufacturer.

What are the operating pressure and temperature limits?

The operating pressure is 1.0 to 1.6 MPa. The operating temperature range is -40 to 85°C. Outside these ranges, seals may be damaged.

What power supply and control signal are required?

The power supply is 24 V DC (±10%). The control signal is 4-20 mA, which is a standard analog signal for remote control. Use a regulated supply for stable operation.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for Flow Controller

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.

Need to Manufacture Flow Controller?

Compare manufacturer profiles with relevant product and process capability.

Create Manufacturer Profile Contact Us
Previous Product
Flow Control Weir
Next Product
Flow Meter
Get QuotesChat