INDUSTRY COMPONENT

Sealing Gasket or O-Ring

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

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
ParameterTypical rangeNotes & selection driver
Hardness70-90 Shore A
Compression Set<20%
Pressure RatingUp to 1000 psi
Tensile Strength10-20 MPa
Temperature Range-40°C to 250°C
Elongation At Break150-400%

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

Standards
ISO 3601, DIN 3771, AS 568A, SAE J515

Parent Products

This component is used in the following industrial products

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

Typical Suppliers & Equivalents

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

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Sealing Gasket or O-Ring

Manufacturer profiles associated with Sealing Gasket or O-Ring.

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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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