Flow Body / Metering Section: Flow Range 0.1-1000 L/min

Q: What is the difference between flow body and metering section?

The flow body is the main housing that directs fluid flow, while the metering section is the specific area within the body where flow parameters are measured with precision instruments.

Q: How often should flow body components be calibrated?

Calibration intervals depend on usage and process conditions, typically every 6-12 months for critical applications, or as recommended by manufacturer and quality standards.

Component Specifications

Definition

The flow body and metering section is a critical component of reference flow sensors, designed to create a stable, predictable flow profile for precise measurement. It consists of a precisely machined housing that directs fluid through a calibrated metering section where flow parameters are measured using integrated sensing elements. This component ensures minimal turbulence, pressure drop, and measurement uncertainty while maintaining compatibility with various process fluids and operating conditions.

Working Principle

The flow body creates a controlled flow path that stabilizes fluid movement, while the metering section provides a consistent cross-sectional area where flow velocity or volumetric rate can be accurately measured using differential pressure, thermal, or ultrasonic sensing methods. The design follows fluid dynamics principles to minimize flow disturbances and ensure measurement repeatability.

Materials

Stainless steel (316L, 304), Hastelloy C-276, Titanium Grade 2, PEEK, PTFE, depending on chemical compatibility requirements. Surface finish: Ra ≤ 0.8 μm for wetted surfaces.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Accuracy	±0.5% of reading
Flow Range	0.1-1000 L/min
Bore Diameter	3-50 mm
Pressure Drop	< 0.1 bar at max flow
Repeatability	±0.1%
Pressure Rating	Up to 100 bar
Connection Types	NPT, BSP, Tri-clamp, Flange
Temperature Range	-40°C to 200°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 5167, DIN EN 60534, ASME B16.5

Parent Products

This component is used in the following industrial products

Reference Flow Sensor

A precision measurement component used as the calibration standard within an electromagnetic flow meter calibrator.

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Engineering Analysis

Risks & Mitigation

Material incompatibility with process fluids
Erosion/corrosion in abrasive or corrosive media
Installation misalignment affecting accuracy
Thermal expansion mismatch

FMEA Triads

Trigger: Material degradation due to chemical attack
Failure: Measurement drift, leakage, component failure
Mitigation: Select appropriate corrosion-resistant materials, implement regular inspection protocols

Trigger: Improper installation alignment
Failure: Flow profile distortion, measurement errors
Mitigation: Follow manufacturer installation guidelines, use alignment tools, verify with flow tests

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerance: ±0.05 mm, Surface finish: Ra 0.4-0.8 μm

Test Method

Flow calibration per ISO 4064, pressure testing per ASME B31.3, material certification per ASTM standards

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Flow Body / Metering Section

Manufacturer profiles associated with Flow Body / Metering Section.

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Frequently Asked Questions

What is the difference between flow body and metering section?