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Selection of bimetallic thermometers
In response to the customer's demand for bimetallic thermometers and the recommended solutions from technical personnel, a systematic analysis is conducted from four dimensions: selection logic, parameter matching degree, application scenario adaptability, and potential optimization directions. Key considerations are also supplemented for decision-making reference:
1、 Core logic of selection: precise matching of requirements and parameters
Temperature range (0-200 ℃)
The bimetallic thermometer drives the pointer to rotate through the difference in thermal expansion coefficient of the bimetallic strip, and is suitable for medium and low temperature scenarios.
CX-WSS-316-200 covers the full range of 0-200 ℃, and the SS316 material can withstand short-term overheating (it is recommended not to exceed 250 ℃ to avoid permanent deformation).
Mechanical structural parameters
Dial diameter 100mm: Balancing reading clarity and installation space, suitable for quick viewing on industrial sites.
Rod length 213mm+rod diameter 6mm: Suitable for deep hole or narrow space installation, 6mm thin rod reduces medium flow interference (such as gas/liquid flow channels).
Material and Protection
SS316 stainless steel: resistant to chloride ion corrosion (such as seawater and chemical media), superior to SS304, extending its service life.
IP65 protection level: dustproof and waterproof, suitable for outdoor or humid environments (such as food processing and pharmaceutical workshops).
connection method
1/2NPT thread: Standard industrial taper pipe thread, wide compatibility, easy to seal and connect with pipelines and equipment interfaces.
2、 Adaptability analysis of recommended model (CX-WSS-316-200)
Parameter Item Customer Requirement Recommended Model Parameter Matching Degree
Temperature range 0-200 ℃ 0-200 ℃ 100%
Dial diameter 100mm 100mm 100%
Rod length/diameter 213mm/6mm 213mm/6mm 100%
Material SS316 SS316 100%
Connection method 1/2NPT thread 1/2NPT thread 100%
Protection level IP65 IP65 100%
Conclusion: The recommended model perfectly matches the customer's needs and can be directly selected.
3、 Suggestions for adaptability to application scenarios
recommended scenarios
Chemical industry: resistant to SS316 corrosion, suitable for temperature monitoring in acidic and alkaline media.
Food/Pharmaceutical: IP65 protection meets hygiene requirements, with pole length suitable for reactor or pipeline installation.
HVAC: 1/2NPT thread facilitates integration with piping systems and monitors fluid temperature.
Caution should be exercised in scenarios
High frequency vibration environment: Long term vibration may cause the pointer to loosen. It is recommended to install shock-absorbing springs or choose digital type.
Strong electromagnetic interference area: Ordinary models without anti-interference design may affect reading stability.
4、 Potential optimization directions (based on future customer needs)
Function upgrade
Electric contact type: adding upper and lower limit alarm contacts, suitable for temperature control linkage (such as boiler over temperature protection).
Digital display type: Integrated LCD screen, supporting 4-20mA output or RS485 communication, convenient for data acquisition and remote monitoring.
Structure Customization
Flexible rod: Suitable for non-linear installation spaces (such as curved pipes).
Short rod with extended thread: Reduce rod length but increase thread depth, suitable for installation on thin-walled equipment.
Authentication Extension
Explosion proof certification: If used in flammable and explosive places (such as oil and gas storage tanks), ATEX/IECEx certified models must be selected.
Classification society certification: Marine engineering applications must comply with DNV, GL and other standards.
5、 Key precautions
Installation direction: When installed vertically, the weight of the pointer may affect accuracy. It is recommended to install horizontally or at an angle of ≤ 30 °.
Media compatibility: Although it is made of SS316 material, it needs to be confirmed that there are no strong oxidizing substances (such as concentrated nitric acid) in the media.
Calibration cycle: It is recommended to calibrate every 12 months to ensure long-term stability (especially under high temperature conditions).
6、 Consultation and ordering guidelines
Contact: CIXIFM Winny
Express Lane:
Email: sales01@cxflowmeter.com (Provide a list of requirements and respond within 24 hours)
WhatsApp:+86 180 4984 1995
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