行业组件数据 · 2026

阀杆/杆

Precision stem/rod component for float assemblies in industrial fluid control systems.

技术定义与适配语境
典型 阀杆/杆 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 critical cylindrical component in float assemblies that transmits mechanical motion from the float to control mechanisms, typically featuring precision machining, corrosion-resistant materials, and specific dimensional tolerances for reliable operation in fluid level control applications.

组件规格

定义
A critical cylindrical component in float assemblies that transmits mechanical motion from the float to control mechanisms, typically featuring precision machining, corrosion-resistant materials, and specific dimensional tolerances for reliable operation in fluid level control applications.
工作原理
Converts buoyant force from the float into linear mechanical motion through direct connection, transmitting position changes to control valves or switches to regulate fluid levels based on displacement principles.
材料
Stainless steel (AISI 304/316)brass (C36000)or carbon steel with protective coatingshardness: 150-250 HBsurface finish: Ra 0.8-1.6 μm.
Length
50-500 mm
Diameter
3-25 mm
Thread type
M6-M20 metric or equivalent UNF
Pressure rating
Up to 25 bar
Operating temperature
-20°C to 150°C
Straightness tolerance
0.05 mm/100 mm
标准
ISO 286-2DIN 7150ASME B1.13M

行业分类与别名

阀杆/杆 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

Material fatigue from cyclic loading->Fracture or permanent deformation->Implement regular inspection schedules and use materials with higher fatigue strength
Inadequate corrosion protection->Pitting and reduced structural integrity->Apply appropriate coatings and select corrosion-resistant alloys for specific environments
Improper alignment during installation->Binding and premature wear->Use alignment fixtures and verify straightness during assembly

工业生态与工程逻辑

0
Corrosion in aggressive fluids
1
Bending under excessive load
2
Thread wear leading to inaccurate positioning
3
Galvanic corrosion in mixed-material assemblies

合规与检测

tolerance
±0.05mm diameter, ±0.1mm length for standard applications
test method
Dimensional verification per ISO 2768-m, material certification per EN 10204 3.1, pressure testing per ISO 5208

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 materials are best for corrosive environments?

AISI 316 stainless steel provides optimal corrosion resistance for harsh chemical or marine applications.

How do I determine the correct stem length?

Measure from the float connection point to the control mechanism interface, adding 10-15mm for adjustment tolerance.

What maintenance is required?

Regular inspection for corrosion, straightness verification, and lubrication of threaded connections every 6-12 months.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

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。

请求制造能力信息: 阀杆/杆

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URN:CNFX:ME:UNIT:STEM_ROD