Product Overview
The HORIBA STEC SEC-8455F is a high-precision mass flow controller (MFC) engineered for accurate measurement and regulation of gas flow in advanced process and pneumatic systems. Utilizing a thermal sensor-based capillary measurement principle combined with a fast-response proportional control valve, this unit delivers stable, repeatable flow control independent of upstream pressure fluctuations. The SEC-8455F is a trusted component in semiconductor fabrication, thin-film deposition, and analytical instrumentation, where precise gas metering is critical to process yield and repeatability. As a process and pneumatic valve assembly, it integrates a normally-closed control valve, a flow sensor, and closed-loop electronics in a compact, panel-mountable body designed for direct OEM replacement and long-term industrial service.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Process & Pneumatic Valve — Mass Flow Controller |
| Model Designation | SEC-8455F |
| Manufacturer | HORIBA STEC |
| Operating Pressure | Standard Industrial Grade (differential pressure dependent, up to rated bar) |
| Flow Control Principle | Thermal capillary sensor with closed-loop proportional valve actuation |
| Valve Configuration | Normally-closed proportional control valve |
| Mounting & Connection | Standard ISO / Manufacturer Interface (VCR-style face seal fittings) |
| Electrical Interface | Analog / digital control signal compatible with OEM system |
Engineering Features & Advantages
- Precision Performance: Closed-loop thermal sensing delivers highly accurate, repeatable gas flow metering with minimal sensitivity to temperature and line pressure variation.
- Fast Response Actuation: Proportional control valve provides rapid, stable response to setpoint changes, minimizing overshoot and settling time in dynamic processes.
- Industrial Reliability: Built for continuous operation under severe process conditions, with a robust valve body and contamination-resistant sensor design.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original HORIBA STEC OEM standards for drop-in service and minimal downtime.
Typical Industrial Applications
Commonly deployed in semiconductor wafer fabrication equipment for etchant and deposition gas delivery, thin-film and CVD/PVD process chambers, analytical and laboratory instrumentation requiring precise gas blending, and general industrial process gas control systems where accurate pneumatic flow regulation is essential to product quality and process repeatability.
PRODUCT IMAGES



HORIBA STEC SEC-8455F Mass Flow Controller
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
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