行业组件数据 · 2026

阀杆/活塞

Precision stem/piston component for filling nozzles and valves that controls fluid flow in beverage manufacturing equipment.

技术定义与适配语境
典型 阀杆/活塞 会按材料、尺寸公差、适配关系和失效风险在 饮料制造 中评估。

A critical cylindrical component within filling nozzles and valves that moves linearly to open and close fluid pathways, precisely controlling the flow of liquids during filling operations. It maintains sealing integrity while withstanding repeated mechanical cycles and fluid exposure.

组件规格

定义
A critical cylindrical component within filling nozzles and valves that moves linearly to open and close fluid pathways, precisely controlling the flow of liquids during filling operations. It maintains sealing integrity while withstanding repeated mechanical cycles and fluid exposure.
工作原理
Operates through linear actuation (pneumatic, hydraulic, or mechanical) to displace within a cylinder or housing, creating or blocking fluid passages. When retracted, it allows fluid flow through the nozzle; when extended, it seals against a seat to stop flow.
材料
Stainless steel (AISI 316L304)PTFE-coated steelceramic compositesor food-grade polymers. Surface finish: Ra ≤ 0.8 μm for sealing surfaces. Hardness: 45-55 HRC for metal variants.
Diameter
3-25 mm
Actuation
Pneumatic, hydraulic, or spring-return
Seal Type
O-ring, lip seal, or metal-to-metal
Stroke Length
5-100 mm
Temperature Range
-10°C to 120°C
Operating Pressure
0-10 bar
标准
ISO 2852DIN 11851FDA 21 CFR 177EHEDG

行业分类与别名

阀杆/活塞 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->Increased stem/piston wear leading to leakage->Implement filtration systems, use hardened materials, and establish preventive replacement schedules.
Improper installation or misalignment->Binding or uneven wear, reducing component life->Follow torque specifications during assembly, ensure proper alignment, and use guided designs.

工业生态与工程逻辑

0
Seal failure leading to leaks
1
Wear causing inaccurate filling volumes
2
Corrosion from aggressive fluids
3
Contamination due to material degradation

合规与检测

tolerance
Diameter tolerance: ±0.01 mm, Straightness: ≤0.02 mm/100 mm
test method
Dimensional verification with micrometers, leak testing per ISO 15848, material certification per ASTM A240

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 maintenance is required for filling nozzle stems/pistons?

Regular inspection for wear, cleaning to prevent buildup, lubrication of seals (if applicable), and replacement of seals or the component when tolerances exceed specifications.

How do I select the right stem/piston material for my application?

Consider fluid compatibility (e.g., acidic beverages require 316L stainless steel), temperature, pressure, hygiene requirements (e.g., FDA compliance), and wear resistance. Consult manufacturer specifications.

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 · 饮料制造

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/活塞

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

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URN:CNFX:ME:UNIT:STEM_PISTON