行业组件数据 · 2026

端部接头

End fittings are precision-engineered connectors that secure and seal the ends of gas lift cylinders, enabling reliable fluid transfer and structural integrity in industrial applications.

技术定义与适配语境
典型 端部接头 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。

End fittings are critical components in gas lift cylinders designed to provide secure attachment points at both ends of the cylinder barrel. They serve multiple functions including: creating a pressure-tight seal to contain compressed gas, providing threaded or flanged connections for mounting to external structures, incorporating ports for gas inlet/outlet, and housing sealing elements like O-rings or gaskets. These fittings must withstand cyclic pressure loads, mechanical stresses, and environmental factors while maintaining precise dimensional tolerances for proper cylinder operation.

组件规格

定义
End fittings are critical components in gas lift cylinders designed to provide secure attachment points at both ends of the cylinder barrel. They serve multiple functions including: creating a pressure-tight seal to contain compressed gas, providing threaded or flanged connections for mounting to external structures, incorporating ports for gas inlet/outlet, and housing sealing elements like O-rings or gaskets. These fittings must withstand cyclic pressure loads, mechanical stresses, and environmental factors while maintaining precise dimensional tolerances for proper cylinder operation.
工作原理
End fittings operate by creating a mechanical interface between the cylinder barrel and external connections. The fitting's design ensures proper alignment and sealing through precision machining of mating surfaces. When installed, the fitting compresses sealing elements against the cylinder barrel, creating a pressure-tight barrier. Threaded or bolted connections provide mechanical strength, while internal passages allow controlled gas flow into and out of the cylinder chamber during operation.
材料
Typically manufactured from high-strength materials including: carbon steel (AISI 10454140)stainless steel (304316)aluminum alloys (6061-T6)or specialized alloys for corrosive environments. Heat treatment processes (quenching and tempering) are often applied to achieve required hardness (typically HRC 28-35) and tensile strength (minimum 800 MPa for steel variants).
Hardness
HRC 28-35
Thread Type
Metric (M12-M36) or UNF/UNC
Surface Finish
Ra 0.8-1.6 μm
Pressure Rating
150-300 bar (2175-4350 psi)
Temperature Range
-40°C to 120°C
Corrosion Resistance
Salt spray test > 500 hours
标准
ISO 11926DIN 3852ISO 8434SAE J514

行业分类与别名

端部接头 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

Insufficient thread engagement->Fitting detachment under pressure->Implement torque-controlled installation procedures and visual thread inspection
Material fatigue from cyclic loading->Crack propagation leading to catastrophic failure->Use materials with appropriate fatigue strength and implement regular non-destructive testing
Chemical attack on sealing surfaces->Gas leakage and pressure loss->Select chemically compatible materials and implement protective coatings

工业生态与工程逻辑

0
Thread failure under excessive torque
1
Seal degradation from chemical exposure
2
Stress corrosion cracking
3
Improper installation causing leaks
4
Material incompatibility with operating media

合规与检测

tolerance
±0.05 mm for critical dimensions, H7/g6 fit for sealing surfaces
test method
Pressure testing per ISO 4413, leak testing 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 are the main failure modes of end fittings in gas lift cylinders?

Common failure modes include thread stripping due to improper torque, seal degradation from chemical exposure, stress cracking from cyclic loading, and corrosion pitting in harsh environments.

How do I select the right end fitting for my gas lift application?

Consider operating pressure, temperature range, media compatibility, connection type, material strength requirements, and compliance with relevant industry standards. Always verify dimensional compatibility with your cylinder barrel.

What maintenance is required for end fittings?

Regular inspection for leaks, torque verification of fasteners, seal replacement during overhaul, and corrosion protection. Follow manufacturer's recommended maintenance intervals based on operating 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
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