行业组件数据 · 2026

连接螺纹

Threaded connection component for thermowell installation in industrial process piping systems.

技术定义与适配语境
典型 连接螺纹 会按材料、尺寸公差、适配关系和失效风险在 化学制造 中评估。

A connection thread is a standardized threaded interface on a thermowell that enables secure mounting into process vessels, pipes, or equipment. It provides mechanical attachment and pressure sealing while allowing the thermowell to be inserted into the process media for temperature sensor protection. Threads are precisely machined to match mating connections in industrial installations.

组件规格

定义
A connection thread is a standardized threaded interface on a thermowell that enables secure mounting into process vessels, pipes, or equipment. It provides mechanical attachment and pressure sealing while allowing the thermowell to be inserted into the process media for temperature sensor protection. Threads are precisely machined to match mating connections in industrial installations.
工作原理
The connection thread creates a mechanical seal through helical ridges that engage with corresponding threads in a mounting boss or fitting. When tightened, the threads compress a gasket or metal-to-metal seat, forming a pressure-tight barrier that prevents process fluid leakage while maintaining the thermowell's position and alignment for accurate temperature measurement.
材料
Typically matches thermowell material: 316 stainless steel (AISI 316)Alloy 600Hastelloy C-276or carbon steel with protective coatings. Thread material must withstand process temperaturepressureand corrosion conditions.
Taper
1:16 for NPT, 1:16 for BSPT
Thread Size
Common sizes: 1/2" NPT, 3/4" NPT, 1" NPT, M20x1.5, G1/2"
Thread Type
NPT (National Pipe Taper), BSPT (British Standard Pipe Taper), Metric (M), or API threads
Thread Pitch
Varies by standard (e.g., 14 TPI for 1/2" NPT)
Thread Length
Typically 4-6 thread engagements minimum
Surface Finish
32-63 µin Ra (0.8-1.6 µm Ra)
Pressure Rating
Depends on thread size/material (typically 150-3000 psi)
标准
ISO 7-1ASME B1.20.1DIN 2999ISO 228-1

行业分类与别名

连接螺纹 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

Improper thread alignment during installation->Cross-threading leading to leakage path->Use alignment guides, hand-tighten initially, follow manufacturer installation procedures
Incompatible thread standards between thermowell and mounting point->Poor sealing and potential thread damage->Verify thread specifications before installation, use certified adapters if needed
Corrosive process media attacking thread material->Thread degradation and loss of sealing capability->Select corrosion-resistant materials, apply protective coatings, implement regular inspection

工业生态与工程逻辑

0
Thread galling during installation
1
Cross-threading damage
2
Insufficient thread engagement causing leakage
3
Corrosion in threaded area
4
Over-torquing leading to thread stripping

合规与检测

tolerance
Thread dimensions per ASME B1.20.1 Class 2 or ISO 7-1 tolerance grades
test method
Thread gauging (GO/NO-GO), pressure testing per ASME B40.100, helium leak testing for critical applications

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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 NPT and BSPT threads for thermowells?

NPT (American) has a 60° thread angle and 1:16 taper, while BSPT (British/European) has a 55° thread angle and 1:16 taper. They are not interchangeable without adapters.

How do I prevent leakage in thermowell threaded connections?

Use appropriate thread sealant (PTFE tape, pipe dope) compatible with process media, ensure proper thread engagement (4-6 turns minimum), and follow torque specifications to avoid over-tightening.

Can thermowell threads be repaired if damaged?

Minor damage can sometimes be repaired with thread chasers or taps, but severely damaged threads typically require thermowell replacement to maintain pressure integrity.

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初步技术归类
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请求制造能力信息: 连接螺纹

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URN:CNFX:ME:UNIT:CONNECTION_THREAD