Industry-Verified Manufacturing Data (2026)

Ejector Nozzle

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Ejector Nozzle 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 Ejector Nozzle is characterized by the integration of Converging Section and Throat. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision component within a vacuum generator/valve that accelerates fluid flow to create suction.

Product Specifications

Technical details and manufacturing context for Ejector Nozzle

Definition
The ejector nozzle is a critical part of vacuum generator/valve systems that converts high-pressure motive fluid (typically compressed air) into high-velocity flow through a converging-diverging design, creating a vacuum by entraining surrounding air or gases via the Venturi effect. It serves as the primary interface where energy transfer occurs to generate suction for material handling, clamping, or evacuation applications.
Working Principle
High-pressure motive fluid enters the nozzle's converging section, accelerating to supersonic speeds in the throat. This creates a low-pressure zone that entrains surrounding air/gas through suction ports. The mixed flow then expands in the diverging section, converting velocity back to pressure while maintaining vacuum generation.
Common Materials
Stainless Steel, Brass, PTFE, Ceramic
Technical Parameters
  • Nozzle throat diameter - critical dimension determining flow capacity and vacuum performance (mm) Standard Spec
Components / BOM
  • Converging Section
    Accelerates motive fluid to sonic velocity
    Material: Stainless Steel
  • Throat
    Minimum cross-section where fluid reaches maximum velocity
    Material: Hardened Steel or Ceramic
  • Diverging Section
    Decelerates flow while recovering pressure
    Material: Stainless Steel
  • Suction Port
    Entry point for entrained air/gas
    Material: Stainless Steel or Brass
Engineering Reasoning
0.1-6.0 bar absolute inlet pressure, 0.001-0.1 bar outlet pressure differential
Mach number >0.8 at throat causing choked flow, or boundary layer separation at divergence angle >15°
Design Rationale: Compressible flow breakdown due to shock wave formation at critical pressure ratio (P_out/P_in <0.528 for air), causing flow separation and momentum transfer loss
Risk Mitigation (FMEA)
Trigger Particulate contamination >5μm in motive fluid stream
Mode: Erosion of convergent-divergent profile increasing throat diameter by >2%
Strategy: Install 3μm absolute filtration with differential pressure monitoring at 0.3 bar warning threshold
Trigger Condensate accumulation in suction chamber exceeding 3% volume fraction
Mode: Two-phase flow instability reducing entrainment ratio below design minimum of 0.4
Strategy: Integrate Peltier cooling element maintaining suction temperature 5°C above dew point at operating pressure

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Ejector Nozzle.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar inlet, vacuum down to 0.1 mbar
flow rate: 0.5 to 500 m³/h (air equivalent)
temperature: -20°C to 150°C
slurry concentration: Up to 15% solids by weight (non-abrasive)
Media Compatibility
✓ Compressed air systems ✓ Industrial vacuum conveying ✓ Laboratory vacuum applications
Unsuitable: Highly corrosive chemical environments (e.g., concentrated acids, chlorine gas)
Sizing Data Required
  • Required suction flow rate (SCFM or m³/h)
  • Available motive fluid pressure (bar or psi)
  • Desired vacuum level (mbar or inHg)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive erosion
Cause: High-velocity particle impingement from entrained solids in the fluid stream, leading to gradual material loss and altered nozzle geometry.
Cavitation
Cause: Localized pressure drops below vapor pressure at the nozzle throat or diffuser, causing vapor bubble formation and collapse that damages surfaces through pitting and fatigue.
Maintenance Indicators
  • Audible high-frequency whistling or hissing indicating flow instability or partial blockage
  • Visible spray pattern distortion or reduced throw distance during operation
Engineering Tips
  • Implement upstream filtration to remove particulates above 10 microns and install sacrificial wear plates at critical impingement points
  • Maintain operating pressure 20-30% above fluid vapor pressure and ensure smooth internal transitions through precision machining to prevent cavitation initiation

Compliance & Manufacturing Standards

Reference Standards
ISO 5167-1:2022 (Measurement of fluid flow by means of pressure differential devices) ANSI/ASME B16.5:2020 (Pipe Flanges and Flanged Fittings) DIN EN 10204:2004 (Metallic products - Types of inspection documents)
Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Surface flatness: 0.05mm per 100mm
Quality Inspection
  • Dimensional verification with coordinate measuring machine (CMM)
  • Pressure testing for leaks and structural integrity

Factories Producing Ejector Nozzle

Verified manufacturers with capability to produce this product in China

✓ 94% Supplier Capability Match Found

P Project Engineer from United Arab Emirates Feb 10, 2026
★★★★★
"The technical documentation for this Ejector Nozzle is very thorough, especially regarding technical reliability."
Technical Specifications Verified
S Sourcing Manager from Australia Feb 07, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Ejector Nozzle so far."
Technical Specifications Verified
P Procurement Specialist from Singapore Feb 04, 2026
★★★★★
"Testing the Ejector Nozzle now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

12 sourcing managers are analyzing this specification now. Last inquiry for Ejector Nozzle from Thailand (1h ago).

Supply Chain Compatible Machinery & Devices

Heavy-Duty CNC Plasma Cutting Machine

Industrial machine for precision metal cutting using plasma arc technology

Explore Specs →
Automated Assembly Line System

Integrated production system for sequential component assembly operations

Explore Specs →
Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

Rotating component that transfers energy to fluid in centrifugal pumps.

Explore Specs →

Frequently Asked Questions

What materials are available for ejector nozzles in machinery manufacturing?

Ejector nozzles are commonly manufactured from stainless steel for durability, brass for cost-effectiveness, PTFE for chemical resistance, and ceramic for high-temperature applications in machinery and equipment.

How does an ejector nozzle create suction in vacuum systems?

The ejector nozzle accelerates fluid flow through its converging section, throat, and diverging section, creating a pressure drop at the suction port that generates vacuum for industrial applications.

What are the key components of an ejector nozzle assembly?

The main components include the converging section (inlet), throat (narrowest point), diverging section (outlet), and suction port where vacuum is created, forming a complete vacuum generator system.

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.

Get Quote for Ejector Nozzle

Request technical pricing, lead times, or customized specifications for Ejector Nozzle directly from verified manufacturing units.

Your business information is encrypted and only shared with verified Ejector Nozzle suppliers.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Ejector Nozzle?

Connect with verified factories specializing in this product category

Add Your Factory Contact Us
Previous Product
Ejector Housing
Next Product
Electric Motor (Electromechanical)