Product Overview
The Brooks Instrument GF125C-876322 / 788-48BLNK-041 is a high-precision thermal mass flow controller (MFC) engineered for accurate measurement and closed-loop regulation of gas flow in demanding industrial and semiconductor process environments. Manufactured by Brooks Instrument, a globally recognized authority in precision fluid measurement and control, this device operates on the principle of differential thermal sensing, where gas flows across a heated capillary sensor tube to produce a temperature differential proportional to mass flow rate. The integrated control valve and PID feedback loop continuously modulate flow to match the operator’s setpoint, ensuring exceptional accuracy and repeatability. This MFC serves as a critical automation component in systems requiring precise gas delivery, such as thin-film deposition, plasma etching, and industrial gas blending, where even minor deviations in flow rate can compromise process yield and product quality.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Mass Flow Controller (MFC) — Thermal Sensing & Closed-Loop Control |
| Model Designation | GF125C-876322 / 788-48BLNK-041 |
| Operating Pressure | Standard Industrial Grade (Up to rated bar; typical operating range 0–150 psig) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (VCR or compression fitting compatible) |
| Flow Sensing Principle | Thermal differential capillary sensor with bypass laminar flow element |
| Control Valve Type | Integrated solenoid-actuated proportional control valve |
| Accuracy Class | ±1% of full scale (typical, dependent on calibration gas) |
| Response Time | ≤2 seconds to within ±2% of setpoint (typical) |
| Electrical Interface | Analog 0–5 VDC or 4–20 mA setpoint/feedback (model-dependent) |
| Wetted Materials | 316L stainless steel, Viton or Kalrez seals (gas-compatible) |
Engineering Features & Advantages
- Precision Thermal Sensing: Advanced capillary thermal sensor delivers highly accurate mass flow measurement independent of gas pressure and temperature fluctuations, ensuring repeatable process results.
- Closed-Loop Control Stability: Integrated PID feedback with proportional solenoid valve maintains setpoint accuracy under dynamic process conditions, minimizing overshoot and settling time.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original BROOKS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
This MFC serves as a critical automation component in systems requiring precise gas delivery, such as thin-film deposition, plasma etching, and industrial gas blending, where even minor deviations in flow rate can compromise process yield and product quality.
PRODUCT IMAGES
BROOKS INSTRUMENT GF125C-876322 / 788-48BLNK-041 Mass Flow Controller
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine BROOKS INSTRUMENT GF125C-876322 / 788-48BLNK-041 Mass Flow Controller. This USA-made precision instrument features advanced thermal sensing, delivering accurate, repeatable gas flow control for critical industrial processes.