INDUSTRY COMPONENT

O-ring / Seals

O-ring seals are elastomeric rings used to prevent fluid or gas leakage in mechanical systems, particularly in pickup and sensor head assemblies.

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Component Specifications

Definition
O-ring seals are torus-shaped mechanical gaskets designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. In pickup and sensor head applications, they prevent contamination ingress and maintain pressure integrity for sensitive components.
Working Principle
O-rings function by creating a seal through elastic deformation when compressed between mating surfaces. The compression creates radial forces that block fluid or gas passage, with the elastomeric material filling microscopic imperfections in the surfaces.
Materials
Nitrile rubber (NBR), Fluorocarbon (Viton/FKM), Ethylene Propylene Diene Monomer (EPDM), Silicone (VMQ), Perfluoroelastomer (FFKM)
Technical Parameters
  • Hardness 70-90 Shore A
  • Inner Diameter 5-500 mm
  • Pressure Rating Up to 35 MPa
  • Temperature Range -40°C to +200°C
  • Cross-Section Diameter 1.5-10 mm
Standards
ISO 3601, DIN 3771, AS 568A, JIS B 2401

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for O-ring / Seals.

O-ring seals sensor head seals industrial seals elastomeric seals fluid sealing pressure sealing contamination prevention mechanical gaskets O-ring / Seals O-ring / Seals in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Pickup / Sensor Head

The detection element of a reference flow sensor that directly interfaces with the fluid or medium to measure flow parameters.

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Engineering Analysis

Risks & Mitigation
  • Chemical degradation from incompatible fluids
  • Compression set leading to seal failure
  • Extrusion under high pressure
  • Thermal expansion/contraction mismatch
  • Installation damage from sharp edges
FMEA Triads
Trigger: Incorrect material selection for operating environment
Failure: Swelling or cracking leading to leakage
Mitigation: Conduct compatibility testing with all system fluids
Trigger: Excessive compression beyond design limits
Failure: Permanent deformation and loss of sealing force
Mitigation: Use proper gland design per ISO 3601 standards
Trigger: Thermal cycling beyond material limits
Failure: Hardening and loss of elasticity
Mitigation: Select materials with appropriate temperature range for application

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.10 mm on cross-section, ±0.15 mm on inner diameter per ISO 3601
Test Method
Pressure decay testing, helium leak testing, visual inspection per ASTM D1414

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 causes O-ring failure in sensor heads?

Common causes include chemical incompatibility, excessive compression set, thermal degradation, improper installation, and extrusion under high pressure.

How do I select the right O-ring material?

Consider fluid compatibility, temperature range, pressure requirements, and environmental factors like UV exposure or ozone presence.

What maintenance is required for O-ring seals?

Regular inspection for cracks, swelling, or flattening; proper lubrication during installation; and replacement during scheduled maintenance intervals.

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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