INDUSTRY COMPONENT

Insulating Sleeve

Insulating sleeve for flange assemblies providing electrical isolation and thermal protection in industrial machinery.

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Component Specifications

Definition
A cylindrical insulating component designed to electrically isolate and thermally protect flange connections in machinery, preventing current leakage, short circuits, and heat transfer between metal surfaces while maintaining structural integrity under mechanical stress.
Working Principle
Works by creating a dielectric barrier between conductive flange surfaces using high-resistance materials, interrupting electrical pathways and reducing thermal conductivity to prevent energy transfer and component damage.
Materials
High-temperature silicone rubber (operating range: -60°C to 250°C), reinforced with fiberglass or ceramic fillers for mechanical strength; alternative materials include PTFE for chemical resistance or mica composites for extreme temperatures.
Technical Parameters
  • Color Typically red/orange for high-visibility
  • Wall Thickness 2-10 mm (customizable)
  • Compression Set ≤20%
  • Dielectric Strength ≥15 kV/mm
  • Flammability Rating UL94 V-0
  • Thermal Conductivity ≤0.25 W/m·K
  • Operating Temperature -60°C to 250°C
Standards
ISO 9001, DIN 7715, IEC 60601, ASTM D2671

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Insulating Sleeve.

insulating sleeve flange insulation electrical isolation thermal protection industrial components machinery safety dielectric barrier high-temperature insulation Insulating Sleeve in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Flange Assembly

A structural component that provides mechanical connection and sealing interface in high-voltage insulating bushings.

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Electrode Ports

Specialized access points on a roof structure designed for electrical connections and electrode integration.

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Engineering Analysis

Risks & Mitigation
  • Electrical shock from insulation failure
  • Thermal degradation under excessive heat
  • Mechanical compression leading to reduced dielectric strength
  • Chemical corrosion in aggressive environments
FMEA Triads
Trigger: Material aging or thermal degradation
Failure: Reduced dielectric strength causing electrical leakage
Mitigation: Regular inspection and replacement based on service life; use materials with higher temperature ratings
Trigger: Improper installation or compression
Failure: Mechanical damage leading to insulation breakdown
Mitigation: Follow manufacturer torque specifications; use calibrated tools and trained personnel
Trigger: Chemical exposure to oils or solvents
Failure: Material swelling or softening compromising insulation
Mitigation: Select chemically resistant materials like PTFE; implement protective covers or barriers

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 mm on inner/outer diameters; ±0.2 mm on wall thickness
Test Method
Dielectric strength test per IEC 60243; thermal aging test per ASTM D573; compression set test per ASTM D395

Buyer Feedback

★★★★☆ 4.7 / 5.0 (22 reviews)

"Found 26+ suppliers for Insulating Sleeve on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Insulating Sleeve is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Insulating Sleeve so far."

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Frequently Asked Questions

What is the primary function of an insulating sleeve in flange assemblies?

To prevent electrical current flow and heat transfer between metal flange surfaces, reducing risks of short circuits, equipment damage, and energy loss.

Consider operating temperature, chemical exposure, mechanical load, and required dielectric strength; silicone rubber is common for general use, while PTFE suits corrosive environments.

Can insulating sleeves be customized for specific applications?

Yes, sleeves can be tailored in dimensions, material composition, and reinforcement to match unique pressure, temperature, and electrical requirements.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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