INDUSTRY COMPONENT

Sealing Gasket or O-Ring

Sealing gasket or O-ring for sample interface in industrial machinery, preventing fluid leakage and contamination.

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Component Specifications

Definition
A precision sealing component designed for sample interface applications in industrial equipment, creating a hermetic seal between mating surfaces to prevent fluid/gas leakage, maintain pressure integrity, and prevent contamination of samples or process media. Engineered to withstand specific temperature, pressure, and chemical exposure conditions.
Working Principle
Creates a compression seal through elastic deformation when compressed between mating surfaces, filling microscopic imperfections to form a leak-proof barrier. The sealing force is generated by the material's elasticity and the compression load applied during assembly.
Materials
Nitrile rubber (NBR), Fluorocarbon (Viton/FKM), Ethylene Propylene Diene Monomer (EPDM), Silicone (VMQ), Perfluoroelastomer (FFKM), Polytetrafluoroethylene (PTFE). Material selection based on chemical compatibility, temperature range (-40°C to 250°C), and pressure requirements.
Technical Parameters
  • Hardness 70-90 Shore A
  • Compression Set <20%
  • Pressure Rating Up to 1000 psi
  • Tensile Strength 10-20 MPa
  • Temperature Range -40°C to 250°C
  • Elongation at Break 150-400%
Standards
ISO 3601, DIN 3771, AS 568A, SAE J515

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Sealing Gasket or O-Ring.

sealing gasket O-ring sample interface seal industrial sealing fluid sealing compression seal rubber gasket mechanical seal Sealing Gasket or O-Ring Sealing Gasket or O-Ring in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Sample Interface

Interface component that facilitates the introduction, positioning, and secure coupling of samples to the spectroscopic analyzer for measurement.

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Engineering Analysis

Risks & Mitigation
  • Chemical degradation
  • Compression set
  • Extrusion failure
  • Thermal degradation
  • Installation damage
  • Incompatible material selection
FMEA Triads
Trigger: Chemical incompatibility with process media
Failure: Swelling, cracking, or degradation of seal material
Mitigation: Conduct chemical compatibility testing, select appropriate material grade, implement material verification procedures
Trigger: Excessive compression or improper installation
Failure: Compression set, seal extrusion, or permanent deformation
Mitigation: Follow manufacturer installation guidelines, use proper compression tools, verify groove dimensions, implement torque control
Trigger: Temperature exceeding material limits
Failure: Thermal degradation, hardening, or loss of elasticity
Mitigation: Select high-temperature materials, implement temperature monitoring, use thermal barriers, regular maintenance inspection

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.10 mm for cross-section, ±0.20 mm for inner diameter
Test Method
ISO 3601-3 for dimensional verification, ASTM D1414 for compression set, ASTM D395 for compression deflection

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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 is the difference between a sealing gasket and an O-ring?

Gaskets are typically flat seals used between static flanges, while O-rings are toroidal seals that fit into grooves and create seals through radial compression. O-rings provide better sealing for dynamic applications.

How do I select the right material for my sample interface?

Consider chemical compatibility with your process media, operating temperature range, pressure requirements, and regulatory compliance. Common materials include NBR for general purpose, FKM for chemical resistance, and EPDM for steam/water applications.

What causes O-ring failure in sample interfaces?

Common failure causes include chemical degradation, extrusion under high pressure, compression set (loss of elasticity), thermal degradation, improper installation, and incorrect sizing.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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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