Nozzle/Orifice Plate: Pressure Range 0.5-50 bar

Component Specifications

Definition

A nozzle/orifice plate is a critical fluid dynamics component installed in burner heads that precisely meters and controls the flow rate of fuel (gas or liquid) while creating optimal atomization patterns for efficient combustion. It features calibrated openings that convert pressure energy into velocity, ensuring proper fuel-air mixing and flame stability in industrial heating applications.

Working Principle

Operates on Bernoulli's principle and fluid dynamics - as fuel passes through the precisely engineered orifice, pressure drops while velocity increases, creating fine atomization. The geometry controls flow characteristics, spray angle, and droplet size distribution for complete combustion.

Materials

Stainless steel (AISI 304/316), Inconel, Hastelloy, Tungsten carbide, Ceramic composites for high-temperature applications; Material selection based on fuel type, temperature, and corrosion resistance requirements.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Tolerance	±0.01 mm
Spray Angle	15°-90°
Pressure Range	0.5-50 bar
Orifice Diameter	0.5-10 mm
Temperature Range	-40°C to 1200°C
Flow Coefficient (Cv)	0.1-5.0

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

Burner Head

The component of a burner system that mixes fuel and air and directs the flame pattern for combustion.

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Engineering Analysis

Risks & Mitigation

Orifice clogging from fuel impurities
Erosion/corrosion from abrasive fuels
Thermal stress cracking
Improper atomization leading to incomplete combustion
Flow rate deviation affecting process efficiency

FMEA Triads

Trigger: Fuel contamination with particulates
Failure: Orifice blockage leading to uneven flame and reduced efficiency
Mitigation: Install upstream filtration (10 micron), regular maintenance cleaning, fuel quality monitoring

Trigger: High-temperature operation with thermal cycling
Failure: Material fatigue and crack formation
Mitigation: Use high-temperature alloys, implement gradual heating/cooling cycles, thermal stress analysis

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±1% of nominal flow rate at specified pressure

Test Method

ISO 5167 for flow measurement, visual inspection for defects, pressure drop testing, spray pattern analysis

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 Nozzle/Orifice Plate

Manufacturer profiles associated with Nozzle/Orifice Plate.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between a nozzle and an orifice plate in burner applications?

A nozzle typically includes both flow metering and atomization functions with specific spray patterns, while an orifice plate is primarily for precise flow measurement and control. In burner heads, they often combine both functions.

How often should burner nozzles be inspected and replaced?

Inspect every 3-6 months; replace every 12-24 months depending on fuel type, operating hours, and maintenance schedule. Signs of wear include irregular flame patterns and increased fuel consumption.

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.

Nozzle/Orifice Plate