行业组件数据 · 2026

阀柱塞

A precision plunger component in delivery valves that regulates fluid flow through reciprocating motion in industrial machinery.

技术定义与适配语境
典型 阀柱塞 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。

The valve plunger is a critical cylindrical component within delivery valve assemblies, designed to create precise sealing and flow control through axial reciprocating movement. It operates within tight tolerances to manage pressure differentials, prevent backflow, and ensure consistent fluid delivery in systems such as fuel injection pumps, hydraulic circuits, and industrial fluid transfer equipment.

组件规格

定义
The valve plunger is a critical cylindrical component within delivery valve assemblies, designed to create precise sealing and flow control through axial reciprocating movement. It operates within tight tolerances to manage pressure differentials, prevent backflow, and ensure consistent fluid delivery in systems such as fuel injection pumps, hydraulic circuits, and industrial fluid transfer equipment.
工作原理
The plunger moves axially within a bore or sleeve, creating a variable orifice that controls fluid flow. When actuated (typically by cam, spring, or hydraulic/pneumatic force), it opens to allow fluid passage and closes to seal, with precise timing and stroke length determining flow rate and pressure characteristics.
材料
High-carbon steel (AISI 52100)stainless steel (316L)hardened tool steelor ceramic-coated alloysoften surface-treated with nitridingchrome platingor DLC coating for wear resistance.
Hardness
58-62 HRC
Stroke Length
5-50 mm
Surface Finish
Ra ≤ 0.2 μm
Temperature Range
-40°C to 200°C
Diameter Tolerance
±0.005 mm
Operating Pressure
Up to 3000 bar
标准
ISO 2944DIN 24342ISO 4401

行业分类与别名

阀柱塞 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

Abrasive particles in fluid->Surface scoring and increased clearance->Implement fine filtration (≤10 μm) and use hardened or coated materials
Inadequate lubrication->Excessive friction and seizure->Ensure proper lubricant viscosity and regular maintenance schedules
High-cycle fatigue->Crack formation and fracture->Design with fatigue-resistant materials and stress-relieving features

工业生态与工程逻辑

0
Wear leading to leakage
1
Seizure from contamination
2
Fatigue failure under cyclic loads
3
Corrosion in chemical environments

合规与检测

tolerance
ISO 286-1 for cylindrical fits, typically h6/H7 for plunger/bore clearance
test method
Leakage testing per ISO 5208, pressure cycling per ISO 19879, wear analysis per ASTM G99

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 plunger in a delivery valve?

It precisely controls fluid flow by reciprocating to open and close the valve passage, regulating pressure and preventing backflow in systems like fuel injection or hydraulic circuits.

How do I select the right material for a valve plunger?

Choose based on fluid compatibility, pressure, and wear requirements: use hardened steel for high pressure, stainless for corrosion resistance, or coated alloys for abrasive environments.

What are common failure modes of valve plungers?

Wear from friction, scoring due to contamination, corrosion from aggressive fluids, and fatigue cracking from cyclic loading, often mitigated with proper lubrication and filtration.

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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
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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URN:CNFX:ME:UNIT:VALVE_PLUNGER