Editorial Technical Reference

Nozzle Body/Housing

This page explains how Nozzle Body/Housing is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The structural component that houses and supports the internal elements of an injection nozzle assembly.

Product Specifications

Technical details and manufacturing context for Nozzle Body/Housing

Definition
The nozzle body or housing is the main structural component of an injection head/nozzle assembly that contains and protects internal parts such as the nozzle tip, heating elements, and flow channels. It provides mechanical support, maintains alignment, and ensures proper sealing and thermal management during material injection processes. This component is typically manufactured from tool steel, stainless steel, or hardened alloy steel, offering the necessary strength and durability for demanding industrial environments. The nozzle body is designed to withstand high pressures and temperatures, ensuring reliable operation in applications such as plastic injection molding, die casting, or fluid dispensing. Its precise machining and surface finish are critical for achieving consistent flow and sealing performance. The body's internal geometry defines the flow path and influences the spray pattern or injection characteristics. It also serves as a mounting interface for other components, such as nozzles, heaters, and sensors, and must maintain tight tolerances to ensure proper alignment. The nozzle body is available in various sizes and configurations to match different pipe or tube dimensions, with nominal diameters ranging from 15 to 60 mm per ISO 6708. Operating pressure ratings typically range from 1.0 to 1.6 MPa, and operating temperatures span from -40°C to 85°C, limited by seal materials. Surface roughness is specified as Ra 0.8–1.6 μm per ISO 1302, and concentricity is held to ≤0.05 mm per ISO 1101 to ensure even spray patterns. Material hardness for stainless steel grades is typically 28–32 HRC per ASTM E18. Weight varies from 0.5 to 2.5 kg depending on size and material. Corrosion resistance is verified by salt spray testing per ISO 9227, with a minimum of 500 hours. Thread tolerance is specified as 6g–6H per ISO 965 to ensure leak-free connections. These parameters serve as reference ranges for selection and verification; actual values must be confirmed with the manufacturer for the specific model and application.
Working Principle
The nozzle body serves as a rigid enclosure that maintains the precise positioning of internal components while withstanding high pressures and temperatures during material injection. It provides a sealed environment for controlled material flow and heat transfer. The body's structural integrity ensures that internal parts remain aligned, preventing leakage and ensuring consistent performance. Its design accommodates thermal expansion and contraction, and its surface finish and tolerances directly affect sealing and flow characteristics. The body also acts as a heat sink or insulator, depending on the application, to manage temperature distribution. By maintaining the correct geometry, the nozzle body ensures that the material is directed accurately and that the spray pattern or injection profile is uniform.
Common Materials
Tool steel, Stainless steel, Hardened alloy steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Nominal Diameter15–60 mmMatches pipe/tube sizeISO 6708
Operating Pressure1.0–1.6 MPaBelow 1.0 MPa seat load insufficientISO 5208
Operating Temperature-40–85 °CSeal material limits
Surface RoughnessRa 0.8–1.6 μmAffects sealing and flowISO 1302
Concentricity≤0.05 mmEnsures even spray patternISO 1101
Material Hardness28–32 HRCFor stainless steel gradesASTM E18
Weight0.5–2.5 kgDepends on size and material
Corrosion Resistance≥500 hSalt spray test per standardISO 9227
Thread Tolerance6g–6HEnsures leak-free connectionISO 965

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

Components / BOM
  • Mounting Flange Part
    Provides secure attachment to the injection machine
    Material: Hardened steel
  • Heating Zone Housing Part
    Encloses and protects heating elements
    Material: Heat-resistant alloy
  • Nozzle Tip Seat Part
    Precisely locates and seals the nozzle tip
    Material: Wear-resistant steel
  • Cooling Channel Part
    Facilitates temperature control through coolant circulation
    Material: Corrosion-resistant alloy

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10,000 psi
flow rate: 0.5 to 50 GPM
temperature: -40°C to 200°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Water-based fluids ✓ Hydraulic oils ✓ Chemical solutions
Unsuitable: Highly abrasive slurries with >40% solids
Sizing Data Required
  • Required flow rate (GPM)
  • Operating pressure (psi)
  • Fluid viscosity (cP)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation erosion
Cause: Rapid pressure drops causing vapor bubble formation and implosion, damaging internal surfaces due to fluid dynamics and improper nozzle design/operation.
Abrasive wear
Cause: Particle-laden fluids causing material removal through impact and sliding contact, accelerated by high velocities and improper filtration.
Maintenance Indicators
  • Irregular spray pattern or flow deviation from design specifications
  • Unusual vibration, noise, or pressure fluctuations during operation
Engineering Tips
  • Implement proper filtration systems and regular fluid quality monitoring to minimize abrasive particle content
  • Optimize operating parameters (pressure, flow rate) within design limits and conduct periodic ultrasonic thickness testing for early erosion detection

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI B16.5 - Pipe flanges and flanged fittings DIN 11851 - Nozzles for the food industry

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Surface flatness: 0.1mm
Quality Inspection
  • Dye Penetrant Test for surface defects
  • Spectrographic Analysis for material composition
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Manufacturers of Nozzle Body/Housing

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

ZheJiang Dongrun Casting Industry Co,. Ltd
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “High quality Aluminum Cast for Fuel Nozzle Body Housing”
View source page ↗ dongruncasting.com · recorded 2026-09-13

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Frequently Asked Questions

What materials are commonly used for nozzle bodies?

Common materials include tool steel, stainless steel, and hardened alloy steel. The choice depends on the application's pressure, temperature, and corrosion requirements.

What is the typical operating pressure range?

The operating pressure range is typically 1.0 to 1.6 MPa. However, the actual allowable pressure depends on the specific design and material.

How is surface roughness specified?

Surface roughness is specified as Ra 0.8–1.6 μm per ISO 1302. This affects sealing and flow characteristics.

What standards apply to the nozzle body?

Relevant standards include ISO 6708 for nominal diameter, ISO 1302 for surface roughness, ISO 1101 for concentricity, ASTM E18 for hardness, ISO 9227 for corrosion resistance, and ISO 965 for thread tolerance. Always verify compliance with the manufacturer.

Related equipment

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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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