行业组件数据 · 2026

U型弯管/回弯管

U-shaped tubing sections that redirect fluid flow in evaporator coils for efficient heat transfer.

技术定义与适配语境
典型 U型弯管/回弯管 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。

U-Bends or Return Bends are precision-formed tubular components in evaporator coils that create 180-degree directional changes in refrigerant flow, enabling compact coil designs and uniform thermal distribution. They connect straight tube sections to form continuous serpentine pathways essential for phase-change heat exchange processes.

组件规格

定义
U-Bends or Return Bends are precision-formed tubular components in evaporator coils that create 180-degree directional changes in refrigerant flow, enabling compact coil designs and uniform thermal distribution. They connect straight tube sections to form continuous serpentine pathways essential for phase-change heat exchange processes.
工作原理
Utilizes fluid dynamics and thermodynamics to redirect refrigerant through 180-degree turns, maintaining flow continuity while minimizing pressure drop and turbulence. The bend geometry facilitates heat transfer by ensuring even refrigerant distribution across coil fins during evaporation cycles.
材料
Copper (C12200/C10200)Aluminum (3003/6061)or stainless steel (304/316L) with wall thickness 0.5-1.2mm. Copper-nickel alloys for marine applications.
Tube OD
6.35-15.88 mm
Bend Radius
1.5-3 x tube OD
Surface Finish
Annealed, polished, or coated
Wall Thickness
0.5-1.2 mm
Pressure Rating
3.5-8.0 MPa
Temperature Range
-40°C to 150°C
标准
ISO 9001ISO 14001DIN EN 14276ASHRAE 15

行业分类与别名

U型弯管/回弯管 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

Cyclic thermal stress->Fatigue cracking at bend radius->Implement proper bend radius (min 1.5x OD), use annealed materials, add support brackets
Refrigerant contamination->Internal corrosion and pitting->Maintain proper refrigerant purity, use corrosion-resistant alloys, implement filtration systems
Improper installation alignment->Mechanical stress concentration->Use alignment fixtures during assembly, verify tube straightness, follow torque specifications

工业生态与工程逻辑

0
Stress corrosion cracking
1
Flow-induced vibration
2
Thermal fatigue failure
3
Improper bend radius causing flow restriction

合规与检测

tolerance
±0.5mm bend radius, ±0.1mm tube OD, ±2° bend angle
test method
Pressure testing per ASME B31.5, leak detection with helium mass spectrometry, dimensional verification with CMM

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 primary function of U-Bends in evaporator coils?

U-Bends create 180-degree directional changes in refrigerant flow, enabling compact coil designs and ensuring uniform thermal distribution across the heat exchange surface.

How do material choices affect U-Bend performance?

Copper offers superior thermal conductivity and corrosion resistance, aluminum provides lightweight alternatives, while stainless steel handles corrosive environments. Material selection impacts heat transfer efficiency, durability, and system compatibility.

What are common failure modes for U-Bends?

Fatigue cracking at bend radii, corrosion-induced pitting, erosion from refrigerant flow, and mechanical stress from thermal expansion/contraction cycles.

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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
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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