行业组件数据 · 2026

静环

Stationary face is the fixed sealing surface in a mechanical seal that works with a rotating face to prevent fluid leakage in rotating equipment.

技术定义与适配语境
典型 静环 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。

The stationary face is a critical component of mechanical seals used in pumps, compressors, and mixers. It remains fixed relative to the equipment housing while maintaining precise contact with the rotating face to create a dynamic seal. This component is engineered to withstand pressure differentials, temperature variations, and chemical exposure while maintaining dimensional stability and surface finish integrity.

组件规格

定义
The stationary face is a critical component of mechanical seals used in pumps, compressors, and mixers. It remains fixed relative to the equipment housing while maintaining precise contact with the rotating face to create a dynamic seal. This component is engineered to withstand pressure differentials, temperature variations, and chemical exposure while maintaining dimensional stability and surface finish integrity.
工作原理
The stationary face operates on the principle of creating a controlled leakage path through precise surface contact with the rotating face. A thin fluid film forms between the two faces, providing lubrication while preventing bulk fluid passage. Spring or bellows loading maintains consistent contact pressure, and the stationary face's thermal conductivity helps dissipate frictional heat generated at the sealing interface.
材料
Common materials include silicon carbide (SiC)tungsten carbide (WC)alumina ceramic (Al2O3)and carbon graphite. Material selection depends on application requirements: SiC for chemical resistanceWC for wear resistanceAl2O3 for cost-effective applicationsand carbon graphite for self-lubricating properties. Material specifications include hardness (70-90 HRC for ceramics)thermal conductivity (50-120 W/m·K)and chemical compatibility ratings.
Hardness
70-90 HRC
Diameter Range
10-500 mm
Surface Finish
0.05-0.2 μm Ra
Pressure Rating
Up to 100 bar
Surface Flatness
≤ 0.0009 mm
Temperature Range
-100°C to +400°C
标准
ISO 21049DIN 24960API 682

行业分类与别名

静环 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

Thermal shock from sudden temperature changes->Radial cracking and seal leakage->Use materials with higher thermal shock resistance, implement gradual temperature changes, add cooling systems
Abrasive particles in process fluid->Excessive wear and loss of sealing surface->Install filtration systems, use harder face materials like silicon carbide, implement flush systems
Improper gland plate installation->Face misalignment and uneven wear->Use precision alignment tools, follow torque specifications, implement installation training programs

工业生态与工程逻辑

0
Thermal cracking from rapid temperature changes
1
Chemical attack from process fluids
2
Wear from abrasive particles in fluid
3
Improper installation causing misalignment
4
Cavitation damage in high-pressure applications

合规与检测

tolerance
Flatness tolerance ≤ 0.0009 mm, surface roughness 0.05-0.2 μm Ra, dimensional tolerance IT6-IT7
test method
Surface flatness testing with optical flats, surface finish measurement with profilometer, material hardness testing with Rockwell C scale, pressure testing per API 682 standards

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 stationary and rotating faces in mechanical seals?

The stationary face remains fixed to the equipment housing while the rotating face rotates with the shaft. Both create the sealing interface, but the stationary face typically has different material properties and mounting requirements.

How often should stationary faces be replaced?

Replacement intervals depend on operating conditions, typically 1-5 years. Indicators include increased leakage, visible wear patterns, or changes in equipment vibration signatures.

Can stationary faces be resurfaced or repaired?

Generally not recommended due to strict flatness and finish requirements. Minor imperfections can sometimes be lapped, but replacement is usually more cost-effective and reliable.

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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。

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URN:CNFX:ME:UNIT:STATIONARY_FACE