Structured Manufacturing Data (2026)

Orifice Plate/Insert

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Orifice Plate/Insert used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Orifice Plate/Insert is characterized by the integration of Orifice Bore and Plate Body. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (e.g., 304, 316) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision component with a calibrated opening that controls and meters fluid flow within a steam or spray nozzle assembly.

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Product Specifications

Technical details and manufacturing context for Orifice Plate/Insert

Definition
The orifice plate/insert is a critical flow control element within steam nozzles and spray nozzles. It is a thin plate or insert with a precisely machined hole (orifice) that creates a restriction in the flow path. This restriction causes a pressure drop across the plate, which is used to measure, regulate, or atomize the flow of steam or liquid. In spray nozzles, it helps determine the flow rate and influences the spray pattern and droplet size.
Working Principle
Fluid (steam or liquid) is forced through the calibrated orifice in the plate. The constriction accelerates the fluid, converting pressure energy into kinetic energy. This creates a measurable pressure differential (ΔP) between the upstream and downstream sides. According to Bernoulli's principle and flow equations, this pressure drop is proportional to the square of the flow rate, allowing for flow measurement, control, or, in the case of spray nozzles, aiding in liquid atomization.
Common Materials
Stainless Steel (e.g., 304, 316), Hastelloy, Titanium, Ceramic
Technical Parameters
  • Orifice diameter (bore size), plate thickness, and outer dimensions. (mm) Standard Spec
Components / BOM
  • Orifice Bore Part
    The precisely machined hole that meters and controls the fluid flow.
    Material: Same as plate base material
  • Plate Body Part
    The structural base that holds the orifice and seals within the nozzle housing.
    Material: Stainless Steel, Hastelloy, etc.
  • Sealing Surface Part
    The machined face(s) that create a leak-proof seal against the nozzle body or gaskets.
    Material: Same as plate body, often with specific finish

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Orifice Plate/Insert.

stainless steel orifice plate for steam nozzles precision orifice insert flow control Hastelloy orifice plate chemical resistance custom orifice bore calibration services ceramic orifice insert high temperature applications

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Steam Nozzle / Spray Nozzle
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 6000 psi (413 bar)
flow rate: 0.1 to 1000 GPM (0.38 to 3785 L/min)
temperature: -50°C to 400°C
slurry concentration: Not recommended for slurries >5% solids by weight
Media Compatibility
✓ Steam (saturated/superheated) ✓ Water (clean/treated) ✓ Compressed air/dry gases
Unsuitable: Abrasive slurries with high particulate content
Sizing Data Required
  • Required flow rate (mass or volumetric)
  • Upstream pressure and pressure drop (ΔP)
  • Fluid properties (density, viscosity, temperature)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Erosion
Cause: High-velocity flow of abrasive particles in the fluid stream, leading to gradual material loss and altered flow characteristics.
Cavitation
Cause: Pressure drop across the orifice causing vapor bubble formation and subsequent implosion, resulting in pitting and material fatigue.
Maintenance Indicators
  • Unusual whistling or hissing noise from the orifice plate assembly
  • Visible distortion, pitting, or thinning of the plate edge during inspection
Engineering Tips
  • Select orifice plate material (e.g., hardened stainless steel, ceramic) based on fluid abrasiveness and corrosion potential
  • Install upstream strainers/filters to reduce particulate loading and maintain proper upstream/downstream straight pipe lengths to minimize turbulence

Compliance & Manufacturing Standards

Reference Standards
ISO 5167: Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full ANSI/ASME MFC-3M: Measurement of Fluid Flow in Pipes Using Orifice, Nozzle, and Venturi DIN 1952: Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full
Manufacturing Precision
  • Bore diameter: +/-0.05% of nominal bore size
  • Flatness: 0.1 mm per 100 mm diameter
Quality Inspection
  • Dimensional verification with coordinate measuring machine (CMM)
  • Dye penetrant testing for surface defects

Factories Producing Orifice Plate/Insert

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are best for corrosive fluid applications?

For corrosive environments, Hastelloy (C-276, C-22) and titanium orifice plates offer superior chemical resistance compared to standard stainless steel grades.

How is orifice bore size calibrated for specific flow rates?

Orifice bore calibration involves precise machining based on fluid properties, pressure differentials, and desired flow rates, following standards like ASME MFC-14M for accurate metering.

Can orifice plates be customized for high-temperature steam applications?

Yes, we manufacture high-temperature orifice plates using materials like ceramic or specialized alloys with appropriate sealing surfaces to withstand steam temperatures up to 1000°F (538°C).

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Machinery and Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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