行业组件数据 · 2026

法兰(如适用)

A flange is a protruding rim or collar used to connect pipes, valves, pumps, or other equipment to form a piping system, typically bolted together with a gasket for sealing.

技术定义与适配语境
典型 法兰(如适用) 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 flange is a mechanical component designed to join sections of pipe or connect pipe to a pressure vessel, valve, or other equipment. It consists of a flat, circular ring with bolt holes around its perimeter. Flanges are paired with matching flanges on adjacent components and secured with bolts, compressing a gasket between them to create a leak-proof seal. They facilitate assembly, disassembly, and maintenance in industrial piping systems, allowing for easy access for inspection or modification. Common in outlet connections of machines, flanges ensure secure, standardized interfaces that withstand operational pressures and temperatures.

组件规格

定义
A flange is a mechanical component designed to join sections of pipe or connect pipe to a pressure vessel, valve, or other equipment. It consists of a flat, circular ring with bolt holes around its perimeter. Flanges are paired with matching flanges on adjacent components and secured with bolts, compressing a gasket between them to create a leak-proof seal. They facilitate assembly, disassembly, and maintenance in industrial piping systems, allowing for easy access for inspection or modification. Common in outlet connections of machines, flanges ensure secure, standardized interfaces that withstand operational pressures and temperatures.
工作原理
Flanges work by providing a mating surface for connection between two components. When bolted together, they compress a gasket placed between the flange faces, creating a tight seal that prevents leakage of fluids or gases. The bolt load distributes pressure evenly across the gasket, maintaining integrity under varying thermal and mechanical stresses. Flanges align components precisely, ensuring proper flow and structural support in the system.
材料
Common materials include carbon steel (ASTM A105)stainless steel (ASTM A182 grades like 304316)alloy steelductile ironor non-metallic options like PVC for specific applications. Material selection depends on factors such as corrosion resistancetemperaturepressureand fluid compatibility.
Face Type
Raised face, flat face, ring-type joint
Thickness
As per ASME B16.5 or equivalent
Pressure Rating
PN6 to PN40, Class 150 to Class 2500
Nominal Pipe Size
DN15 to DN600
Bolt Circle Diameter
Varies by size and standard
Number of Bolt Holes
4 to 24
标准
ISO 7005-1DIN EN 1092-1ASME B16.5ASME B16.47

行业分类与别名

法兰(如适用) 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 bolt tightening->Gasket compression loss leading to leaks->Follow torque specifications and use calibrated tools
Material degradation from chemical exposure->Corrosion or cracking compromising integrity->Select corrosion-resistant materials and conduct regular inspections
Thermal cycling->Fatigue and bolt loosening over time->Use appropriate gaskets and retorque bolts periodically

工业生态与工程逻辑

0
Leakage due to improper gasket selection or bolt torque
1
Corrosion from incompatible materials
2
Mechanical failure under excessive pressure or vibration
3
Misalignment causing stress and seal failure

合规与检测

tolerance
Dimensional tolerances as per ASME B16.5: flange thickness ±0.8 mm, bolt hole diameter ±0.4 mm, face flatness within 0.05 mm
test method
Pressure testing per ASME B31.3, hydrostatic or pneumatic tests to 1.5 times design pressure; non-destructive testing like ultrasonic or dye penetrant for material flaws

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 purpose of a flange in an outlet connection?

A flange provides a standardized, bolted connection point for attaching pipes or equipment to a machine's outlet, ensuring a secure, sealed interface that allows for easy assembly, maintenance, and pressure containment.

How do I select the right flange material?

Choose based on the fluid type, temperature, pressure, and corrosion requirements; common options include carbon steel for general use, stainless steel for corrosive environments, and alloys for high-temperature applications.

What are the common flange standards?

Key standards include ASME B16.5 for dimensions and ratings, ISO 7005-1 for international compatibility, and DIN EN 1092-1 for European specifications, ensuring interchangeability and safety.

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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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