行业组件数据 · 2026

垫圈/垫圈座

A sealing component that prevents leakage between mating surfaces in mechanical connections.

技术定义与适配语境
典型 垫圈/垫圈座 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。

A gasket is a mechanical seal that fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. A gasket seat is the specifically designed surface or recess on a fitting or flange where the gasket is positioned to ensure proper alignment and sealing performance.

组件规格

定义
A gasket is a mechanical seal that fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. A gasket seat is the specifically designed surface or recess on a fitting or flange where the gasket is positioned to ensure proper alignment and sealing performance.
工作原理
Works by being compressed between two mating surfaces, filling microscopic imperfections and creating a barrier that prevents fluid or gas leakage. The gasket material deforms under bolt load to conform to the surface irregularities, while the gasket seat provides precise positioning and support to maintain uniform compression and prevent extrusion.
材料
Common materials include: Rubber (NBREPDMFKM)PTFECompressed Non-Asbestos Fiber (CNAF)GraphiteMetal (stainless steelcopper)and Composite Materials. Material selection depends on temperature rangepressurechemical compatibilityand media type.
Hardness
50-90 Shore A (rubber materials)
Compression Set
<20% (ASTM D395)
Pressure Rating
Up to 300 bar (material and design dependent)
Temperature Range
-50°C to +300°C (material dependent)
Thickness Tolerance
±0.1mm to ±0.5mm
标准
ISO 7483ISO 9624DIN 2690DIN 2691ASME B16.21

行业分类与别名

垫圈/垫圈座 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

Improper bolt torque during installation->Uneven compression leading to localized leakage->Use calibrated torque wrenches and follow cross-tightening patterns per manufacturer specifications
Material incompatibility with process media->Chemical degradation and loss of sealing integrity->Conduct thorough chemical compatibility testing before selection and implementation
Thermal cycling beyond material limits->Compression set and loss of elasticity->Select materials with appropriate temperature ratings and consider thermal expansion coefficients

工业生态与工程逻辑

0
Leakage leading to system failure
1
Chemical incompatibility causing degradation
2
Over-compression leading to extrusion
3
Under-compression causing insufficient seal
4
Thermal cycling causing fatigue

合规与检测

tolerance
Dimensional tolerances per ISO 286-1, surface finish Ra ≤ 3.2 μm for seating surfaces
test method
ASTM F37 for sealability, ASTM F36 for compressibility and recovery, ASTM D395 for compression set, ISO 23529 for physical testing of rubber

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 is the difference between a gasket and a gasket seat?

A gasket is the compressible sealing element, while the gasket seat is the machined surface or recess on the fitting where the gasket is placed. The seat ensures proper alignment, prevents gasket extrusion, and helps maintain uniform compression.

How do I select the right gasket material?

Consider operating temperature, pressure, chemical compatibility with the media, required compression set resistance, and industry standards. Common materials include NBR for oil resistance, EPDM for weather resistance, PTFE for chemical resistance, and metal for high temperature/pressure applications.

What causes gasket failure?

Common causes include improper installation (over/under tightening), material incompatibility with media, excessive temperature or pressure, flange misalignment, and degradation from aging or chemical attack.

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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
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URN:CNFX:ME:UNIT:GASKET_GASKET_SEAT