行业组件数据 · 2026

阀体

Valve body is the main structural housing of a molten metal flow control valve, designed to withstand extreme temperatures and corrosive environments while directing metal flow.

技术定义与适配语境
典型 阀体 会按材料、尺寸公差、适配关系和失效风险在 基础金属制造 中评估。

The valve body serves as the primary pressure-containing component in molten metal flow control systems, typically constructed from high-temperature resistant alloys to handle liquid metals at temperatures exceeding 700°C. It provides the structural framework for valve internals, maintains pressure integrity, and directs flow through precisely engineered passages. Critical features include thermal expansion compensation, erosion resistance, and leak-proof sealing surfaces.

组件规格

定义
The valve body serves as the primary pressure-containing component in molten metal flow control systems, typically constructed from high-temperature resistant alloys to handle liquid metals at temperatures exceeding 700°C. It provides the structural framework for valve internals, maintains pressure integrity, and directs flow through precisely engineered passages. Critical features include thermal expansion compensation, erosion resistance, and leak-proof sealing surfaces.
工作原理
The valve body operates by containing and directing molten metal flow through internal passages controlled by valve mechanisms. It maintains structural integrity under thermal cycling (expansion/contraction) and pressure differentials while providing mounting surfaces for actuators and seals. The body's geometry minimizes turbulence and prevents metal solidification during flow interruptions.
材料
High-nickel alloys (Inconel 625/718)cobalt-based superalloys (Stellite)refractory metals (molybdenum alloys)or ceramic-lined steel composites. Typical specifications: ASTM A297/A351UNS N06625minimum 0.2% yield strength 550 MPa at 800°C.
Surface Finish
Ra 3.2 μm maximum
Connection Type
Flanged DIN/ANSI
Pressure Rating
10-50 bar
Temperature Range
700-1200°C
Body Wall Thickness
15-40 mm
Flow Coefficient (Cv)
15-200
标准
ISO 16135DIN 3356ASME B16.34

行业分类与别名

阀体 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

Thermal cycling stress->Fatigue cracks in body wall->Implement controlled heating/cooling cycles and use materials with high thermal fatigue resistance
Molten metal erosion->Wall thinning and leakage->Apply ceramic linings or use erosion-resistant alloys in high-velocity flow areas
Differential thermal expansion->Flange leakage or distortion->Design with expansion compensation features and proper bolt loading procedures

工业生态与工程逻辑

0
Thermal fatigue cracking
1
Erosion of internal passages
2
Creep deformation at sustained high temperatures
3
Galvanic corrosion with dissimilar metals

合规与检测

tolerance
Dimensional tolerances per ISO 2768-m, pressure testing to 1.5x design pressure
test method
Hydrostatic pressure test, liquid penetrant inspection, radiographic testing for critical sections

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 materials are best for molten metal valve bodies?

High-nickel alloys like Inconel provide optimal balance of high-temperature strength, corrosion resistance against molten metals, and thermal fatigue resistance.

How do valve bodies handle thermal expansion?

Design incorporates expansion joints, flexible connections, and calculated clearances to accommodate differential expansion between body materials and internal components.

What maintenance do valve bodies require?

Regular thermal cycling inspection, erosion monitoring of internal passages, and flange bolt retorquing to maintain seal integrity under temperature variations.

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CNFX Industrial Component Index · 基础金属制造

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初步技术归类
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URN:CNFX:ME:UNIT:VALVE_BODY