Description

🌊 High-Capacity Flow Bench Calibration (Gas & Liquid)

Overview

We provide full calibration and characterization of high-capacity flow benches and flow standards, covering both gas and liquid regimes. These systems are the backbone of metrology labs, aerospace facilities, utility companies, and OEM manufacturers, where accuracy in mass, volumetric, and standard flow rates is mission-critical.

Our service is built around primary and secondary flow standards traceable to NIST and international references, ensuring that your flow measurement systems deliver repeatable and defensible results across the entire operating range.

Scope (What we calibrate)

• Primary standard flow benches (piston provers, bell provers, gravimetric/liquid collection systems).

• Secondary standards (critical orifice arrays, laminar flow elements, turbine meters).

• OEM test benches (aerospace fuel delivery, gas utility metering, industrial calibration rigs).

• High-capacity flow controllers and meters (>100 SLPM gas, >20 LPM liquid).

• Custom flow fixtures for R&D and production QA.

Test Plan & Methodology

1. Visual & Functional Inspection

• Condition of flow elements, seals, sensors, and piping.

• Leak check at maximum rated pressure.

• Verification of transducers and differential sensors.

2. Multi-Point Calibration

• 10–15 calibration points across the operating range (e.g., 10%, 25%, 50%, 75%, 100%).

• Both increasing and decreasing flow to detect hysteresis.

• Gas: calibrated with critical flow venturis, sonic nozzles, or laminar flow elements.

• Liquid: gravimetric (weighing tank) or time–volume collection with precision balances.

3. Dynamic Response & Stability Testing

• Response time to setpoint changes.

• Overshoot, settling, and noise characterization.

• Long-term drift testing at constant flow.

4. Uncertainty Budget & Reporting

• Full uncertainty analysis including instrument tolerance, environmental conditions, repeatability, and reference standard accuracy.

• Expanded uncertainty reported at 95% confidence (k=2).

• Custom reporting aligned with ISO/IEC 17025 (if required).

Accuracy & Ranges (typical)

• Gas flow: 0.1 SLPM → 10,000 SLPM; accuracy ±0.25–0.5% of reading.

• Liquid flow: 10 mL/min → 500 L/min; accuracy ±0.15–0.3% of reading.

• Critical flow orifices: ±0.25% of Cd (discharge coefficient) at choked conditions.

• Laminar flow elements (LFE): ±0.2–0.5% of reading over linear range.

Deliverables

• Calibration certificate (NIST-traceable, optional ISO/IEC 17025).

• Flow vs. output curve (graphs & equations for correction).

• Raw data package (CSV) for integration into QA systems.

• Uncertainty budget with detailed breakdown.

• Recommendations for maintenance, re-range, or replacement of flow elements.

Pricing (Enterprise-grade)

• Flow Bench Calibration (Gas or Liquid): Starting at $9,500 per bench/element

  • Typical range: $5,500–$12,000 depending on bench type, flow media, and number of points.

• Additional flow element characterization: +$1,500 each.

• Dual-media (gas + liquid) packages: +$3,500.

• Expedited schedule or weekend work: +$1,750.

• On-site calibration (if bench cannot be shipped): custom travel/day rate.