行业组件数据 · 2026

阀杆/执行器耦合/连杆

A mechanical coupling or linkage connecting valve stems to actuators for precise motion transfer in industrial valve systems.

技术定义与适配语境
典型 阀杆/执行器耦合/连杆 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 specialized mechanical component designed to transmit torque and motion between a valve stem and an actuator, ensuring precise alignment and force transfer while accommodating misalignment and thermal expansion in industrial valve applications. It serves as the critical interface that converts actuator output into controlled valve movement.

组件规格

定义
A specialized mechanical component designed to transmit torque and motion between a valve stem and an actuator, ensuring precise alignment and force transfer while accommodating misalignment and thermal expansion in industrial valve applications. It serves as the critical interface that converts actuator output into controlled valve movement.
工作原理
Operates on mechanical linkage principles to transfer rotational or linear motion from the actuator to the valve stem. The coupling accommodates axial, radial, and angular misalignment through flexible elements or universal joints while maintaining torque transmission integrity. It ensures synchronized movement with minimal backlash for precise valve positioning.
材料
Typically manufactured from high-strength alloy steels (AISI 41404340)stainless steels (316304)or specialized alloys for corrosive environments. Flexible elements may incorporate engineered polymers (polyurethaneHytrel)elastomersor metallic bellows. Surface treatments include hardeningplatingor coating for wear and corrosion resistance.
Backlash
<0.1°
IP Rating
IP65-IP69K
Max Speed
100-3000 RPM
Torque Capacity
50-5000 Nm
Operating Temperature
-40°C to 200°C
Misalignment Compensation
Axial: ±3mm, Radial: ±1.5mm, Angular: ±3°
标准
ISO 5211ISO 5752DIN 3337DIN 3352ANSI/ISA-75.05

行业分类与别名

阀杆/执行器耦合/连杆 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

Improper installation alignment->Accelerated wear and premature failure->Use alignment tools during installation and follow manufacturer specifications
Exceeding torque capacity->Shear failure of coupling elements->Install torque limiters and conduct regular torque calibration
Corrosive environment exposure->Material degradation and loss of mechanical integrity->Select corrosion-resistant materials and protective coatings

工业生态与工程逻辑

0
Misalignment-induced wear
1
Torque overload failure
2
Corrosion in harsh environments
3
Fatigue cracking under cyclic loading
4
Backlash affecting positioning accuracy

合规与检测

tolerance
Dimensional tolerances per ISO 2768-m, alignment tolerance ±0.05mm, angular tolerance ±0.1°
test method
Torque testing per ISO 10441, alignment verification with dial indicators, fatigue testing with cyclic loading, environmental testing per ISO 9227

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 a valve stem coupling?

To precisely transfer motion and torque from the actuator to the valve stem while compensating for misalignment and thermal expansion, ensuring accurate valve positioning and reliable operation.

How do I select the right coupling for my valve application?

Consider torque requirements, speed, misalignment conditions, environmental factors (temperature, corrosion), and compliance with industry standards like ISO 5211 for mounting interfaces.

What maintenance do valve couplings require?

Regular inspection for wear, lubrication of moving parts (if applicable), alignment checks, and torque verification. Maintenance frequency depends on operating conditions and manufacturer recommendations.

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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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请求制造能力信息: 阀杆/执行器耦合/连杆

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URN:CNFX:ME:UNIT:COUPLING_LINKAGE