行业组件数据 · 2026

端口塞/密封件

Port plugs and seals are precision components that seal unused hydraulic ports on valve manifolds to prevent fluid leakage and contamination.

技术定义与适配语境
典型 端口塞/密封件 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。

Port plugs and seals are specialized sealing components designed for hydraulic control valve manifolds. They serve to block unused hydraulic ports, maintaining system integrity by preventing fluid leakage, pressure loss, and contamination ingress. These components ensure the hydraulic system operates at optimal efficiency by maintaining proper pressure levels and protecting internal components from external contaminants like dirt, moisture, and particulates.

组件规格

定义
Port plugs and seals are specialized sealing components designed for hydraulic control valve manifolds. They serve to block unused hydraulic ports, maintaining system integrity by preventing fluid leakage, pressure loss, and contamination ingress. These components ensure the hydraulic system operates at optimal efficiency by maintaining proper pressure levels and protecting internal components from external contaminants like dirt, moisture, and particulates.
工作原理
Port plugs create a mechanical barrier by threading or pressing into unused manifold ports, while seals (typically O-rings or gaskets) provide an elastomeric compression seal against mating surfaces. The sealing mechanism relies on material deformation under compression to fill microscopic gaps, creating a leak-proof barrier that withstands hydraulic pressure fluctuations and thermal expansion.
材料
Plugs: Carbon steel (AISI 1018/1020)stainless steel (304/316)brass (C36000)aluminum (6061-T6). Seals: Nitrile rubber (NBR) for petroleum-based fluidsfluorocarbon (FKM/Viton) for high-temperature applicationsethylene propylene diene monomer (EPDM) for water-glycol fluidspolyurethane (PU) for abrasion resistance.
Size Range
1/8" to 2" (3mm to 50mm)
Thread Type
NPT, BSPP, BSPT, SAE ORB
Surface Finish
Ra 0.8-1.6 μm (32-63 μin)
Pressure Rating
Up to 6000 psi (414 bar)
Temperature Range
-40°C to 200°C (-40°F to 392°F)
标准
ISO 1179ISO 6149DIN 3852SAE J514

行业分类与别名

端口塞/密封件 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

Incorrect installation torque->Thread damage or insufficient sealing pressure->Use calibrated torque wrenches and follow manufacturer specifications
Material incompatibility with hydraulic fluid->Seal swelling, cracking, or chemical degradation->Verify material-fluid compatibility charts before selection
Thermal cycling beyond material limits->Seal hardening, compression set, or loss of elasticity->Select materials with appropriate temperature ratings for the application

工业生态与工程逻辑

0
Improper installation causing leaks
1
Material incompatibility with hydraulic fluid
2
Over-torquing damaging threads
3
Seal degradation from thermal cycling

合规与检测

tolerance
Thread tolerances per ISO 1179-1, seal dimensions per ISO 3601
test method
Pressure testing per ISO 4413, leak testing with helium mass spectrometry or pressure decay methods

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 difference between port plugs and port seals?

Port plugs are solid components that physically block unused ports, while seals (like O-rings or gaskets) provide the actual sealing interface. Many port plugs incorporate integrated seals for complete sealing solutions.

How do I select the right material for hydraulic port seals?

Material selection depends on hydraulic fluid type, temperature range, pressure, and chemical compatibility. NBR works for most petroleum-based fluids, FKM for high temperatures and aggressive chemicals, and EPDM for water-based fluids.

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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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URN:CNFX:ME:UNIT:PORT_PLUGS_SEALS