Industry-Verified Manufacturing Data (2026)

Filling Nozzle Assembly

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Filling Nozzle Assembly used in the Electrical Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Filling Nozzle Assembly is characterized by the integration of Nozzle Body/Housing and Nozzle Tip/Orifice. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (316L) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision assembly that controls the dispensing of electrolyte into battery cells during the filling process.

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Product Specifications

Technical details and manufacturing context for Filling Nozzle Assembly

Definition
The Filling Nozzle Assembly is a critical component of the Electrolyte Filling System, responsible for the accurate, controlled, and leak-free transfer of liquid electrolyte from the supply system into individual battery cells. It ensures precise volumetric dosing and prevents contamination or spillage.
Working Principle
The assembly connects to the electrolyte supply line. A valve mechanism within the assembly opens to allow pressurized electrolyte to flow through the nozzle tip into the cell. The flow is precisely controlled by the system's PLC based on set volume parameters, after which the valve closes to seal the line.
Common Materials
Stainless Steel (316L), Fluoropolymer (e.g., PTFE, PFA), Ceramic
Technical Parameters
  • Nozzle tip outer diameter and inner bore diameter, critical for fitting into cell fill ports and controlling flow. (mm) Customizable
Components / BOM
  • Nozzle Body/Housing
    Main structural component that houses internal parts and provides connection points.
    Material: Stainless Steel
  • Nozzle Tip/Orifice
    Precision-machined end piece that directs electrolyte flow into the cell; often replaceable.
    Material: Stainless Steel or Ceramic
  • Solenoid Valve
    Electrically actuated valve that opens/closes to start/stop electrolyte flow.
    Material: Stainless Steel, Fluoropolymer Seals
  • Seals/Gaskets
    Ensure leak-proof connections between components and at the cell interface.
    Material: Fluoropolymer (e.g., PTFE, Viton)
  • Sensor Port (optional)
    Port for integrating sensors (e.g., pressure, drip) for process monitoring.
    Material: Stainless Steel
Engineering Reasoning
0.8-1.2 bar (12-17.4 psi) at 25°C with 1.0±0.05 mm orifice diameter
Cavitation occurs at vapor pressure ≤0.023 bar absolute (0.33 psi) for aqueous electrolytes at 25°C, causing flow instability exceeding ±15% from setpoint
Design Rationale: Bernoulli's principle: Pressure drop across orifice (ΔP=ρv²/2) reduces local pressure below electrolyte vapor pressure, forming vapor bubbles that collapse downstream causing erosion (cavitation damage rate >0.1 mm/year at 10⁸ bubble collapses)
Risk Mitigation (FMEA)
Trigger Electrolyte crystallization at nozzle tip due to ΔT>5°C between electrolyte (25°C) and ambient (20°C)
Mode: Flow restriction increasing from 1.0 L/min to <0.3 L/min within 30 cycles
Strategy: Peltier heating element maintaining nozzle tip at 30±0.5°C with PID control (Kp=2.5, Ki=0.1, Kd=0.05)
Trigger Solenoid coil insulation breakdown at >85°C (Class B insulation limit) due to I²R heating at >12V DC continuous
Mode: Stuck-open valve causing overfill exceeding 115% of cell volume specification
Strategy: PTFE-coated magnet wire with 155°C thermal rating and current limiting to 0.8A via PWM at 25kHz

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Filling Nozzle Assembly.

precision electrolyte filling nozzle assembly battery cell filling nozzle with solenoid valve stainless steel PTFE filling nozzle for batteries automated electrolyte dispensing nozzle assembly ceramic tip filling nozzle for battery manufacturing

Applied To / Applications

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

Electrolyte Filling System
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-5 bar
flow rate: 0.1-10 mL/s
temperature: -20°C to 80°C
slurry concentration: Up to 60% solids by weight
Media Compatibility
✓ Lithium-ion battery electrolyte ✓ Aqueous electrolyte solutions ✓ Polymer gel electrolytes
Unsuitable: Highly abrasive slurries with >60% solids content
Sizing Data Required
  • Required flow rate (mL/s)
  • Electrolyte viscosity (cP)
  • Nozzle tip diameter requirement (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive erosion
Cause: High-velocity flow of particulate-laden fluids causing material wear at critical sealing surfaces and internal passages.
Cavitation
Cause: Rapid pressure drops below fluid vapor pressure, forming and collapsing vapor bubbles that create localized pitting and material fatigue.
Maintenance Indicators
  • Irregular spray pattern or flow deviation from design specifications
  • Unusual vibration or audible knocking during operation
Engineering Tips
  • Implement inline filtration to reduce particulate concentration in process fluids
  • Maintain operating pressure above fluid vapor pressure threshold and avoid sudden pressure drops

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ANSI B16.5 - Pipe Flanges and Flanged Fittings DIN 11851 - Nozzles for the Food Industry
Manufacturing Precision
  • Bore Diameter: +/-0.02mm
  • Surface Flatness: 0.1mm per 100mm
Quality Inspection
  • Dye Penetrant Test for Surface Defects
  • Pressure Test for Leakage (Hydrostatic/Pneumatic)

Factories Producing Filling Nozzle Assembly

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

S Sourcing Manager from Canada Mar 01, 2026
★★★★★
"The Filling Nozzle Assembly we sourced perfectly fits our Electrical Equipment Manufacturing production line requirements."
Technical Specifications Verified
P Procurement Specialist from United States Feb 26, 2026
★★★★☆
"Found 30+ suppliers for Filling Nozzle Assembly on CNFX, but this spec remains the most cost-effective. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from United Arab Emirates Feb 23, 2026
★★★★★
"The technical documentation for this Filling Nozzle Assembly is very thorough, especially regarding technical reliability."
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.”

11 sourcing managers are analyzing this specification now. Last inquiry for Filling Nozzle Assembly from Poland (1h ago).

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Frequently Asked Questions

What materials are used in this filling nozzle assembly and why?

The assembly uses 316L stainless steel for corrosion resistance, fluoropolymers like PTFE/PFA for chemical inertness against electrolytes, and ceramic for wear resistance at the orifice, ensuring long service life in harsh battery manufacturing environments.

How does the solenoid valve in this assembly improve filling accuracy?

The integrated solenoid valve provides precise on/off control of electrolyte flow, enabling consistent dispensing volumes and preventing drips or overfilling, which is critical for battery performance and manufacturing efficiency.

Can this nozzle assembly handle different electrolyte types and viscosities?

Yes, the combination of 316L stainless steel, fluoropolymer seals, and ceramic components makes it compatible with various electrolyte chemistries and viscosities commonly used in lithium-ion, lead-acid, and other battery types.

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 Specifications verified by CNFX Industrial Index (v2.6.03) for Electrical Equipment Manufacturing sector.

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