The STEC SEC-4400MO-437 is a heavy-duty industrial mass flow controller engineered for precise gas flow regulation in semiconductor, analytical, and process gas systems. It utilizes a thermal sensing principle with a capillary bypass and control valve to maintain accurate mass flow independent of pressure and temperature fluctuations.
STEC SEC-4400MO-437 Technical Specifications
| Parameter | Specification |
|---|---|
| Flow Range | 0–500 sccm (N2 equivalent) |
| Accuracy | ±1% of setpoint (typical) |
| Repeatability | ±0.5% of full scale |
| Response Time | ≤1 second (to within 2% of final value) |
| Operating Pressure | 0–0.7 MPa (0–7 bar) |
| Proof Pressure | 1.0 MPa (10 bar) |
| Leak Integrity | 1×10⁻⁹ Pa·m³/s He maximum |
| Control Valve Type | Normally closed solenoid with proportional control |
| Wetted Materials | 316L stainless steel, PTFE, Viton® |
| Electrical Interface | 0–5 VDC analog setpoint and flow output |
| Supply Voltage | ±15 VDC or 24 VDC (model dependent) |
| Process Connection | 1/4″ VCR male |
| Operating Temperature | 5°C to 50°C |
| Ingress Protection | IP40 (electronics enclosure) |
Key Engineering Features
- Thermal mass flow sensing with capillary bypass for accurate gas measurement
- Integrated proportional solenoid control valve for closed-loop flow regulation
- Fast response time and high repeatability for dynamic process control
- 316L stainless steel wetted parts for corrosion resistance and high purity
- Analog 0–5 VDC interface for easy integration with control systems
- Compact modular design for space-constrained installations
Industrial Applications
- Semiconductor manufacturing – gas delivery in etch, CVD, and diffusion processes
- Analytical instrumentation – carrier gas and sample flow control
- Process gas blending and proportioning systems
- Research and development laboratories requiring precise gas flow
- Pharmaceutical and biotechnology process gas control
For technical inquiries, dimensional drawings, or replacement support for STEC SEC-4400MO-437, contact the Pro-Hydraulic engineering team.
PRODUCT IMAGES
STEC SEC-4400MO-437 Mass Flow Controller
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the STEC SEC-4400MO-437 Mass Flow Controller. This precision-engineered industrial component delivers reliable performance and accurate operation for demanding industrial systems.