行业组件数据 · 2026

管道连接法兰

A duct connection flange is a standardized mechanical component used to securely join duct sections in industrial ventilation systems, ensuring airtight seals and structural integrity.

技术定义与适配语境
典型 管道连接法兰 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 duct connection flange is a flat, ring-shaped component with bolt holes, designed to connect two duct sections in ventilation or exhaust systems. It provides a rigid, sealed interface that prevents air leakage, maintains pressure integrity, and allows for easy assembly and disassembly. Typically installed at duct ends using welding, riveting, or mechanical fasteners, it ensures proper alignment and load distribution in systems like containment hoods.

组件规格

定义
A duct connection flange is a flat, ring-shaped component with bolt holes, designed to connect two duct sections in ventilation or exhaust systems. It provides a rigid, sealed interface that prevents air leakage, maintains pressure integrity, and allows for easy assembly and disassembly. Typically installed at duct ends using welding, riveting, or mechanical fasteners, it ensures proper alignment and load distribution in systems like containment hoods.
工作原理
The flange creates a mating surface between duct sections, secured with bolts through aligned holes. A gasket inserted between flanges compresses upon tightening, forming an airtight seal. This mechanical joint transfers loads, resists vibration, and maintains system pressure by preventing gaps or misalignment.
材料
Common materials include galvanized steel (ASTM A653)stainless steel (AISI 304/316 for corrosion resistance)aluminum (6061-T6 for lightweight applications)or carbon steel (ASTM A36). Gaskets are often made from neoprenesiliconeor EPDM rubber.
Bolt Size
M8 to M20
Diameter Range
100-2000 mm
Pressure Rating
Up to 5000 Pa
Flange Thickness
3-12 mm
Temperature Range
-40°C to 400°C
Bolt Circle Diameter
Varies by standard
标准
ISO 5801DIN 24194SMACNA Duct Construction StandardsASHRAE Handbook

行业分类与别名

管道连接法兰 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 gasket material or installation->Air leakage reducing system efficiency->Use compatible gaskets and follow torque specifications during assembly.
Corrosion from exposure to moisture or chemicals->Flange degradation and joint failure->Select corrosion-resistant materials like stainless steel and apply protective coatings.
Vibration from machinery->Bolt loosening and joint separation->Use lock washers or thread-locking compounds, and implement regular maintenance checks.

工业生态与工程逻辑

0
Leakage due to improper sealing
1
Corrosion in harsh environments
2
Structural failure from over-tightening or vibration
3
Misalignment causing airflow restriction

合规与检测

tolerance
±1 mm for bolt hole alignment, ±2 mm for flange flatness per ISO 2768-m
test method
Pressure testing per ISO 5801, leak detection using smoke or ultrasonic methods, visual inspection for gaps and corrosion.

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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 purpose of a duct connection flange in a containment hood?

It ensures a secure, leak-proof joint between duct sections, maintaining system efficiency, safety, and compliance with ventilation standards by preventing air or contaminant escape.

How do you select the right flange material?

Choose based on environmental factors: galvanized steel for general use, stainless steel for corrosive or high-temperature environments, and aluminum for lightweight needs, considering cost and durability.

What are common installation errors with duct flanges?

Errors include improper gasket placement, uneven bolt tightening leading to leaks, misalignment causing stress, and using incorrect bolt sizes or materials for the application.

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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:DUCT_CONNECTION_FLANGE