行业组件数据 · 2026

密封垫圈/垫片

A seal/gasket for drain valves that prevents fluid leakage and maintains system pressure in industrial applications.

技术定义与适配语境
典型 密封垫圈/垫片 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 precision-engineered sealing component designed specifically for drain valves in industrial machinery, creating a tight barrier between mating surfaces to prevent leakage of liquids, gases, or contaminants. It ensures proper valve operation by maintaining pressure integrity and preventing environmental contamination or product loss.

组件规格

定义
A precision-engineered sealing component designed specifically for drain valves in industrial machinery, creating a tight barrier between mating surfaces to prevent leakage of liquids, gases, or contaminants. It ensures proper valve operation by maintaining pressure integrity and preventing environmental contamination or product loss.
工作原理
Works by compression between two mating surfaces (valve body and drain port), creating a physical barrier through elastic deformation. The seal fills microscopic imperfections in the surfaces, preventing fluid passage through the interface while allowing controlled drainage when the valve is opened.
材料
Nitrile rubber (NBR)Fluorocarbon (Viton/FKM)Ethylene Propylene Diene Monomer (EPDM)Polytetrafluoroethylene (PTFE)Siliconeor Metal (stainless steelcopper) depending on application requirements for temperaturepressureand chemical resistance.
Hardness
70-90 Shore A
Inner Diameter
Matches valve drain port
Outer Diameter
Based on flange dimensions
Compression Set
<25%
Pressure Rating
Up to 150 psi
Temperature Range
-40°C to 200°C
Thickness Tolerance
±0.1mm
标准
ISO 3601DIN 3770ASTM F104SAE J515

行业分类与别名

密封垫圈/垫片 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

Chemical degradation of seal material->Leakage at valve interface->Use chemically compatible materials; implement regular inspection schedules
Excessive compression during installation->Seal extrusion or permanent deformation->Follow torque specifications; use proper installation tools; train personnel
Thermal cycling beyond material limits->Cracking or loss of sealing properties->Select materials with appropriate temperature ratings; consider thermal expansion coefficients

工业生态与工程逻辑

0
Seal degradation from chemical exposure
1
Compression set leading to leakage
2
Improper installation causing seal damage
3
Thermal expansion mismatch
4
Incompatible material selection

合规与检测

tolerance
±0.1mm thickness, ±0.2mm diameter
test method
ASTM D1414 compression set test, ASTM D395 compression deflection, leak testing per ISO 5208

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

How often should drain valve seals be replaced?

Replacement intervals depend on operating conditions, but typically range from 6-24 months. Factors include temperature extremes, chemical exposure, pressure cycles, and mechanical wear. Regular inspection for compression set, cracking, or deformation is recommended.

What materials are best for chemical resistance in drain valve seals?

PTFE offers excellent chemical resistance across a wide range. Viton/FKM handles fuels and oils well. EPDM is suitable for water and steam applications. Material selection should match the specific fluids being handled.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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