行业组件数据 · 2026

密封壳体

A precision-engineered housing that contains and protects mechanical seal components in rotating equipment.

技术定义与适配语境
典型 密封壳体 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 seal housing is a critical structural component in mechanical seal assemblies that provides a secure enclosure for stationary and rotating seal faces, secondary seals, and spring mechanisms. It maintains proper alignment, prevents external contamination, and facilitates cooling/lubrication flow in pumps, mixers, compressors, and other rotating machinery. Designed to withstand operational pressures, temperatures, and mechanical stresses while ensuring dimensional stability for optimal seal performance.

组件规格

定义
The seal housing is a critical structural component in mechanical seal assemblies that provides a secure enclosure for stationary and rotating seal faces, secondary seals, and spring mechanisms. It maintains proper alignment, prevents external contamination, and facilitates cooling/lubrication flow in pumps, mixers, compressors, and other rotating machinery. Designed to withstand operational pressures, temperatures, and mechanical stresses while ensuring dimensional stability for optimal seal performance.
工作原理
The housing creates a controlled environment where mechanical seal components operate under precise conditions. It maintains axial and radial alignment of seal faces through precision machining, provides ports for barrier/flush fluids, and transfers heat away from the seal interface. The housing's geometry ensures proper compression of secondary seals and allows for thermal expansion without compromising seal integrity.
材料
Typically manufactured from ASTM A216 WCB carbon steelASTM A351 CF8M stainless steel (316 equivalent)duplex stainless steels (UNS S31803)or nickel alloys (Alloy 20Hastelloy). Cast iron (ASTM A48) used for non-corrosive applications. Surface finishes: 32-63 Ra internallycorrosion-resistant coatings or electropolishing for aggressive environments.
Face Flatness
≤ 0.0002 inches (0.005 mm)
Surface Finish
32-125 μin Ra (0.8-3.2 μm Ra)
Pressure Rating
Up to 100 bar (1500 psi)
Temperature Range
-40°C to 400°C (-40°F to 750°F)
Mounting Standards
ANSI/ASME B73.1, ISO 2858, API 682
Dimensional Tolerance
IT7-IT8 per ISO 286
标准
ISO 21049API 682ANSI/ASME B73.1DIN 24960

行业分类与别名

密封壳体 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

Corrosive fluid exposure->Wall thinning and leakage->Use corrosion-resistant alloys, apply protective coatings, implement cathodic protection
Thermal cycling->Distortion and loss of face flatness->Design for thermal expansion, use materials with matching coefficients, incorporate cooling jackets
Improper installation->Misalignment and premature seal wear->Use alignment tools, follow torque specifications, implement installation training

工业生态与工程逻辑

0
Corrosion in chemical environments
1
Thermal distortion at high temperatures
2
Improper alignment causing seal failure
3
Cavitation damage in pump applications
4
Galvanic corrosion with dissimilar metals

合规与检测

tolerance
Dimensional tolerances per ISO 286 IT7, flatness ≤ 0.0002 inches, surface finish 32-125 μin Ra
test method
Hydrostatic pressure testing per API 682, dimensional inspection with CMM, material certification per ASTM/EN standards, NDE methods (PT, MT) for critical applications

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 seal housing and gland plate?

The seal housing is the complete assembly that contains all seal components, while the gland plate is specifically the part that compresses the stationary seal against the housing. The housing includes ports, alignment features, and mounting provisions that the gland plate lacks.

How often should seal housings be inspected?

During routine maintenance every 6-12 months, or according to equipment service intervals. Inspect for corrosion, wear, dimensional changes, and surface defects. Critical applications may require more frequent inspection.

Can seal housings be repaired if damaged?

Minor damage can be repaired through machining or welding with proper procedures, but significant corrosion or distortion typically requires replacement to maintain seal performance and safety standards.

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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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URN:CNFX:ME:UNIT:SEAL_HOUSING