行业组件数据 · 2026

排油/注油阀

Specialized valve for controlled oil drainage and filling in tap changer tanks

技术定义与适配语境
典型 排油/注油阀 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A precision-engineered valve component designed specifically for transformer tap changer tanks to facilitate safe, controlled, and efficient drainage of insulating oil during maintenance and refilling with new or filtered oil. It ensures proper sealing, prevents contamination, and maintains oil quality in electrical insulation systems.

组件规格

定义
A precision-engineered valve component designed specifically for transformer tap changer tanks to facilitate safe, controlled, and efficient drainage of insulating oil during maintenance and refilling with new or filtered oil. It ensures proper sealing, prevents contamination, and maintains oil quality in electrical insulation systems.
工作原理
Operates through a manual or automated mechanism that opens/closes a flow path between the tank interior and external oil handling systems. When opened, it allows oil to drain via gravity or pumping; when closed, it provides a hermetic seal to maintain tank integrity and prevent leaks.
材料
Body: ASTM A216 WCB carbon steel or 316 stainless steelSeals: Nitrile rubber (NBR) or fluorocarbon (FKM)Internal components: Brass or stainless steelCoating: Epoxy paint for corrosion resistance
Actuation
Manual handwheel or quarter-turn lever
Port Size
1/2" to 2"
Leakage Class
ANSI/FCI 70-2 Class VI
Connection Type
Flanged (ANSI 150#) or threaded (NPT)
Pressure Rating
10 bar maximum
Temperature Range
-20°C to +100°C
标准
ISO 5208DIN 3202IEC 60296

行业分类与别名

排油/注油阀 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

Seal degradation due to aging or chemical incompatibility->Oil leakage from valve->Regular seal inspection/replacement per maintenance schedule; use compatible seal materials
Corrosion of valve body in harsh environments->Valve seizure or structural weakness->Apply protective coatings; use corrosion-resistant materials like stainless steel
Improper installation or overtightening->Thread damage or seal distortion->Follow manufacturer torque specifications; use proper installation tools

工业生态与工程逻辑

0
Oil leakage leading to environmental contamination
1
Improper sealing causing moisture ingress
2
Valve failure during emergency drainage
3
Material incompatibility with oil additives

合规与检测

tolerance
Leakage < 0.1 mL/min per inch of port diameter at rated pressure
test method
Hydrostatic pressure test per ISO 5208; seal integrity test per IEC 60529 IP68

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 an oil drain/fill valve in tap changer tanks?

To enable safe and controlled removal of insulating oil during maintenance and precise refilling without introducing air or contaminants.

How often should oil drain/fill valves be inspected?

During routine transformer maintenance (typically every 3-5 years) or whenever oil sampling/testing indicates potential issues.

Can these valves be used with different types of insulating oils?

Yes, but material compatibility must be verified—especially seal materials—with specific oil types (mineral, silicone, or ester-based).

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CNFX Industrial Component Index · 电气设备制造

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:OIL_DRAIN_FILL_VALVE