行业组件数据 · 2026

O型圈/密封件

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

技术定义与适配语境
典型 O型圈/密封件 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

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.

组件规格

定义
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.
工作原理
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.
材料
Nitrile rubber (NBR)Fluorocarbon (Viton/FKM)Ethylene Propylene Diene Monomer (EPDM)Silicone (VMQ)Perfluoroelastomer (FFKM)
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
标准
ISO 3601DIN 3771AS 568AJIS B 2401

行业分类与别名

O型圈/密封件 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Incorrect material selection for operating environment->Swelling or cracking leading to leakage->Conduct compatibility testing with all system fluids
Excessive compression beyond design limits->Permanent deformation and loss of sealing force->Use proper gland design per ISO 3601 standards
Thermal cycling beyond material limits->Hardening and loss of elasticity->Select materials with appropriate temperature range for application

工业生态与工程逻辑

0
Chemical degradation from incompatible fluids
1
Compression set leading to seal failure
2
Extrusion under high pressure
3
Thermal expansion/contraction mismatch
4
Installation damage from sharp edges

合规与检测

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

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

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.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: O型圈/密封件

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

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URN:CNFX:ME:UNIT:O_RING_SEALS