Mass Flow Controllers: Price and Specification Comparison of 3 Leading Models in Thailand
MIT Trade Co., Ltd. is an authorized distributor of Mass Flow Controllers and gas flow measurement instruments in Thailand. We supply the complete range of PRAKARN products, including the PE, PS300, and PS500 series. Our engineering team is ready to help you select the exact model for your specific applications, whether for laboratories, process control, or factory automation systems.
If you are looking for a reliable Mass Flow distributor in Thailand offering transparent pricing and expert technical support, contact us at 081-123-2475.
What is a Mass Flow Controller?
A Mass Flow Controller (MFC) is a two-in-one device designed to simultaneously measure and automatically control the flow rate of gases to a specific setpoint.
The key advantage of an MFC over standard rotameters or flow gauges is that it measures mass rather than volume. This ensures that the readings remain accurate and unaffected by fluctuations in system temperature or pressure, which is critical for high-precision applications.
Our models utilize Thermal Dispersion technology integrated with a highly sealed electromagnetic proportional valve, ensuring minimal to near-zero leakage.
Available Models and Pricing
| Specifications | PE Series | PS300 Series | PS500 Series |
|---|---|---|---|
| Price | 44,940 THB | 53,500 THB | 58,850 THB |
| Accuracy | 0.8% F.S. or 1.0% S.P. | 0.3% F.S. (≤30% F.S.) | 0.3% F.S. (≤30% F.S.) |
| Flow Range | 0-20 sccm to 0-20 slm | 0-10 sccm to 0-50 slm | 0-20 sccm to 0-20 slm |
| Communication Port | D-SUB9 | RJ45, D-SUB9 | RJ45, D-SUB9 |
| Power Consumption | ≤2.7W | ≤2.7W | ≤4.0W |
| Best For | General purpose, Cost-effective | Widest flow range | High accuracy, High valve drive |
View details for each model: MASS FLOW CONTROLLER PE SERIES · MASS FLOW CONTROLLER PS300 SERIES · MASS FLOW CONTROLLER PS500 SERIES or view all products in the Mass Flow Controller category
Common Specifications Across All Models
- Supported Gases: Air, N2, O2, CO2, He, H2, CH4, Ar
- Response Time: ≤ 0.5 seconds
- Repeatability: ±0.2% F.S.
- Operating Temperature: 0-50 °C
- Operating Pressure: > 2 slm uses 0.5-4 bar / ≤ 2 slm uses 0.5-6 bar
- Maximum Pressure: 9.8 bar
- Body Material: 316L Stainless Steel · Seals: FKM
- Valve Type: Normally closed (Failsafe shut-off upon power loss)
- Fittings: 1/4 inch tube compression or VCR
- Output Signals: RS-485 Modbus RTU and analog 0-5V or 4-20 mA
A Normally Closed valve shuts off completely during a power failure, which is a critical safety feature for flammable gases like H2 or CH4.
Industries & Applications
- Chemical & Petrochemical: Precise control of reactant gas ratios.
- Pharmaceuticals: Applications requiring traceability and clearly specified accuracy.
- Semiconductors: CVD, etching, and sputtering processes requiring ultra-low leak rates.
- Food & Beverage: MAP (Modified Atmosphere Packaging) processes requiring precise N2 and CO2 blending.
- Laboratories & Research: Atmosphere control in furnaces or reactors.
- Wastewater & Environmental: Controlled dosing of ozone or oxygen.
How to Choose the Right Model for Your Application
Step 1: Determine Your Actual Flow Range. Select a model where your typical operating flow is between 30-70% of the Full Scale (F.S.). Operating below 30% reduces accuracy. Avoid choosing an unnecessarily wide flow range.
Step 2: Check for PLC or SCADA Integration. If integrating with a centralized control system, the PS300 or PS500 series with RJ45 ports will make wiring easier. For local on-site reading only, the PE Series is sufficient.
Step 3: Check Inlet Pressure. The system must have a pressure of 0.5-4 bar for > 2 slm applications, or 0.5-6 bar for ≤ 2 slm applications. If the pressure is higher, a regulator must be installed upstream.
Step 4: Specify Gas Type When Ordering. The Mass Flow Controller must be calibrated specifically for the gas being used, as different gases have distinct heat capacities.
Still unsure? Send us your requirements or call 081-123-2475, and we will help you choose.
Why Buy from an Authorized Thai Distributor?
- Faster Delivery: No need to wait for international shipping and handle customs clearance yourself.
- Local Technical Support: Discuss on-site issues (e.g., no signal output, unstable readings, or Modbus connection problems) directly with Thai engineers. It is much faster and clearer than international emails.
- Complete Procurement Documents: Get quotations, tax invoices, and specification documents in formats fully compliant with Thai corporate procurement standards.
- Reliable After-Sales Service: You always have someone local to contact if there are product issues.
Frequently Asked Questions (FAQ)
What is the difference between a Mass Flow Controller and a Mass Flow Meter?
A Mass Flow Meter (MFM) only measures the flow. A Mass Flow Controller (MFC) both measures and automatically controls the flow using an internal valve to maintain your setpoint. If you only need to know how much gas is used, an MFM is enough. If you need the system to automatically maintain the flow rate, an MFC is required.
What types of gases are supported?
We support Air, N2, O2, CO2, He, H2, CH4, and Ar. Please specify the gas type when ordering so the device can be accurately factory-calibrated for that specific gas.
Can it be integrated with PLC or SCADA?
Yes. All models support RS-485 Modbus RTU and your choice of analog signals (0-5V or 4-20 mA).
Are the products in stock or made-to-order?
This depends on the specific model and flow range required. Please call 081-123-2475 to check our current inventory.
Are prices inclusive of VAT?
Please contact our sales team for pricing terms and an official quotation.
Contact Us for a Quotation
MIT Trade Co., Ltd.
131/110 Soi Phaholyothin 52 Yaek 42, Khlong Thanon, Sai Mai, Bangkok 10220
Phone: 081-123-2475
Simply provide us with your required gas type, flow range, and inlet pressure, and we will recommend the most suitable model for you.