行业组件数据 · 2026

恒温元件

A thermostatic element is a temperature-sensitive component in steam traps that controls condensate discharge by expanding or contracting with temperature changes.

技术定义与适配语境
典型 恒温元件 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。

A thermostatic element is a precision temperature-sensing device used in thermostatic steam traps, typically consisting of a sealed bellows or capsule filled with a volatile fluid or wax mixture. It operates based on thermal expansion principles to open or close the valve mechanism in response to condensate temperature variations, ensuring efficient steam system operation by discharging condensate while retaining live steam.

组件规格

定义
A thermostatic element is a precision temperature-sensing device used in thermostatic steam traps, typically consisting of a sealed bellows or capsule filled with a volatile fluid or wax mixture. It operates based on thermal expansion principles to open or close the valve mechanism in response to condensate temperature variations, ensuring efficient steam system operation by discharging condensate while retaining live steam.
工作原理
The thermostatic element operates on the principle of thermal expansion. When exposed to condensate at lower temperatures, the volatile fluid inside contracts, causing the bellows to collapse and open the valve for condensate discharge. As steam approaches, the temperature rises, expanding the fluid and extending the bellows to close the valve, preventing steam loss.
材料
Stainless steel (AISI 304/316) bellowscopper-nickel alloy capsulesvolatile fluid (typically alcohol-water mixture or specialized hydrocarbon)brass or stainless steel housingPTFE seals.
Fluid Fill
Alcohol-based or synthetic hydrocarbon
Response Time
30-90 seconds
Bellows Stroke
3-8 mm
Temperature Range
-20°C to 200°C
Operating Pressure
0-25 bar
标准
ISO 6552ISO 6704DIN EN 27841

行业分类与别名

恒温元件 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

Cyclic thermal stress exceeding material endurance limits->Bellows fatigue cracking leading to fluid loss->Use bellows with higher cycle life ratings, implement pressure and temperature controls, regular inspection
Chemical attack from acidic condensate or oxygen pitting->Corrosion penetration compromising seal integrity->Select corrosion-resistant materials (316 stainless steel), maintain proper water treatment, install filters

工业生态与工程逻辑

0
Bellows rupture from overpressure
1
Fluid leakage causing loss of sensitivity
2
Corrosion from contaminated condensate
3
Thermal fatigue from rapid temperature cycling

合规与检测

tolerance
±2°C operating temperature tolerance, ±5% pressure rating tolerance
test method
ISO 6552 for steam trap testing, hydrostatic pressure testing per ASME B16.34, thermal response testing with calibrated temperature baths

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 causes thermostatic element failure in steam traps?

Common failures include bellows fatigue from cyclic operation, fluid leakage due to corrosion or seal degradation, contamination from system debris, and overheating beyond design limits.

How often should thermostatic elements be replaced?

Typical service life is 3-5 years under normal operating conditions, but replacement intervals depend on operating cycles, steam quality, and maintenance practices. Regular inspection is recommended annually.

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CNFX Industrial Component Index · 机械和设备制造

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初步技术归类
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请求制造能力信息: 恒温元件

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URN:CNFX:ME:UNIT:THERMOSTATIC_ELEMENT