Flow Control Orifice/Nozzle: Temperature Range -40°C to 200°C

Component Specifications

Definition

A calibrated flow control orifice or nozzle is a precision-engineered fluid dynamics component designed to regulate and control the flow rate of nitrogen gas in carrier systems. It functions by creating a controlled pressure drop across a specifically sized opening, enabling precise metering of nitrogen flow for various industrial applications including inerting, purging, and pressure control.

Working Principle

Operates on the principle of fluid dynamics where a constricted passage (orifice/nozzle) creates a pressure differential that regulates flow rate according to Bernoulli's equation and continuity principles. The flow rate is proportional to the square root of the pressure drop across the orifice and the orifice area.

Materials

Stainless steel (316L/304), brass, or specialized alloys with corrosion resistance; surface finish Ra ≤ 0.8 μm; hardness HRC 40-50

Technical Parameters

Parameter	Typical range	Notes & selection driver
Beta Ratio	0.2-0.8
Connection Type	NPT, BSP, SAE, or flange
Pressure Rating	Up to 100 bar
Orifice Diameter	0.5-10 mm
Temperature Range	-40°C to 200°C
Flow Coefficient (Cv)	0.01-5.0

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 1952, ASME MFC-3M

Parent Products

This component is used in the following industrial products

Nitrogen Carrier

A component that transports and delivers nitrogen gas during the nitriding process in alloy powder production.

View Product Details

Engineering Analysis

Risks & Mitigation

Cavitation at high pressure drops
Erosion from particulate contamination
Clogging from impurities
Incorrect sizing leading to flow instability
Material incompatibility with process media

FMEA Triads

Trigger: Particulate contamination in nitrogen stream
Failure: Orifice clogging and flow restriction
Mitigation: Install upstream filtration (5-10 micron), regular maintenance inspection, use self-cleaning orifice designs

Trigger: Excessive pressure differential
Failure: Cavitation and material erosion
Mitigation: Design for maximum allowable pressure drop, install pressure relief valves, use erosion-resistant materials

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±2% of nominal flow rate at specified conditions, dimensional tolerance ±0.01 mm

Test Method

Flow calibration per ISO 5167 using nitrogen gas, pressure decay testing, dimensional verification with coordinate measuring machines

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 Control Orifice/Nozzle

Manufacturer profiles associated with Flow Control Orifice/Nozzle.

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Frequently Asked Questions

What is the difference between an orifice and a nozzle in flow control applications?

An orifice is typically a thin plate with a sharp-edged hole creating sudden contraction and expansion, while a nozzle has a tapered or contoured profile for smoother flow transition. Orifices are simpler and cheaper but create more turbulence; nozzles provide better flow characteristics and lower pressure recovery losses.

How do I select the correct orifice size for my nitrogen system?

Selection requires calculating required flow rate, system pressure, allowable pressure drop, and nitrogen properties. Use standard flow equations (ISO 5167) considering temperature, pressure, and desired accuracy. Consult manufacturer data sheets for specific Cv values and performance curves.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Flow Control Orifice/Nozzle