Temperature is a crucial parameter in every link of industrial production. From precise temperature control of the reactor, to temperature monitoring of the fluid in the pipeline, to temperature monitoring during equipment operation, accurate temperature measurement is the key to ensuring production safety, improving product quality, and optimizing process flow. Bimetallic thermometers, with their simple structure, intuitive readings, and affordable prices, have become widely used temperature measuring instruments in industrial sites. However, if the installation size of the thermometer does not match the installation hole reserved for the equipment, it will not only cause installation difficulties, affect measurement accuracy, but may even damage the equipment. This article will take the WTYY-1031 bimetallic thermometer as an example to explore in depth how to ensure the perfect fit of its dial size, threaded interface and the original equipment installation hole, and provide you with a detailed installation guide.

1. Adaptability: The “first checkpoint” of thermometer installation

Why is the adaptability of the temperature gauge so important? Imagine if you bought a pair of shoes that are not the right size, either they squeeze your feet or they are loose and fall off, and you can’t walk normally. Similarly, if the size of the thermometer does not match the installation hole of the equipment, it will also bring a series of problems:

1. Difficult installation: The dial size is too large to be inserted into the installation hole; the threaded interface does not match and cannot be tightened and fixed. These will cause the installation work to fail to proceed smoothly.

2. Inaccurate measurement: The thermometer is not installed in place, and the temperature sensing element cannot fully contact the measured medium, resulting in low measurement results or large fluctuations.

3. Seal failure: Loose threaded connection may cause medium leakage, corrosion of equipment, and even safety accidents.

4. Equipment damage: Forcibly installing a thermometer with mismatched size may damage the equipment installation hole or the thermometer itself.

Therefore, before purchasing and installing the WTYY-1031 bimetallic thermometer, be sure to carefully check the relevant size parameters to ensure that it is perfectly matched with the installation hole of the original equipment.

2. Dial size adaptation: “window” for accurate measurement

The dial size of the WTYY-1031 bimetallic thermometer mainly includes the dial diameter and dial thickness. Choosing the right dial size should ensure clear readings and smooth installation of the thermometer.

1. Dial diameter: The dial diameter is available in several specifications, such as 60mm, 100mm, and 150mm. When choosing, it should be determined according to the diameter of the equipment installation hole. When measuring the diameter of the installation hole, a precision measuring tool such as a vernier caliper should be used to ensure measurement accuracy. Generally speaking, the dial diameter should be slightly smaller than the installation hole diameter to facilitate insertion and fixation.

2. Dial thickness: The dial thickness mainly affects the protruding part of the thermometer after it is inserted into the installation hole. If the dial is too thick, it may cause the thermometer to protrude too high, affecting the appearance of the equipment or interfering with other components; if the dial is too thin, it may cause the thermometer to be unable to be fixed firmly.

3. Viewing angle: For some installation locations, the viewing angle of the dial may need to be considered. WTYY-1031 provides two structures: straight (the dial is perpendicular to the temperature sensing tube) and universal (the dial angle is adjustable).

In actual applications, the size of the installation hole reserved by the original equipment may vary. It may be a standard round hole, a threaded hole, or an irregular hole. Different adaptation measures need to be taken for different hole types.

3. Thread interface matching: the “bond” of tight connection

The WTYY-1031 bimetallic thermometer is fixed to the equipment installation hole by threaded connection. The matching of the thread interface is the key to ensure tight connection and prevent leakage.

1. Thread type: Common thread types include NPT, G, M, etc. Different types of threads have different tooth types, pitches and diameters and cannot be interchanged. Therefore, when choosing a thermometer, be sure to confirm the thread type of the original equipment installation hole.

2. Thread size: Even the same type of thread has different size specifications. For example, NPT threads have 1/4″NPT, 1/2″NPT, 3/4″NPT and other specifications. The thread size is expressed in inches or millimeters, such as 1/2″ means that the nominal diameter of the thread is 1/2 inch. When selecting, it should be determined according to the thread size of the original equipment installation hole.

3. Thread accuracy: Thread accuracy refers to the processing accuracy of the thread, including the tolerances of the thread diameter, pitch, and tooth profile half angle. If the thread accuracy is too low, it may lead to loose connections, leakage, and other problems. Therefore, a thermometer with higher thread accuracy should be selected.

4. Sealing material: In order to ensure the sealing of threaded connections, sealing materials such as polytetrafluoroethylene raw tape and sealant are required at the threaded connections. When selecting sealing materials, factors such as the properties, temperature, and pressure of the measured medium should be considered.

When measuring the thread interface of the original equipment, a thread gauge can be used for detection. The thread gauge is a special measuring tool that can measure the type, size, and accuracy of the thread. Insert or put the thread gauge on the thread and observe its matching to determine whether the thread matches.

4. Adjustment of installation hole position: a “good solution” to resolve mismatch

If the installation hole position of the original equipment does not completely match the size of the WTYY-1031 bimetallic thermometer, some adjustment measures can be taken:

1. Hole expansion: If the diameter of the installation hole is slightly smaller than the dial diameter or thread outer diameter of the thermometer, you can consider expanding the installation hole. When expanding the hole, special tools should be used, and attention should be paid to controlling the amount of expansion to avoid damage to the equipment.

2. Use adapter: If the thread type or size of the installation hole does not match the thread interface of the thermometer, an adapter can be used for conversion. One end of the adapter is connected to the installation hole of the original equipment, and the other end is connected to the thermometer. When selecting an adapter, pay attention to its material, pressure resistance grade and other parameters to ensure that it can withstand the working conditions.

It should be noted that the adapter may increase the installation length, affect the insertion depth of the temperature sensing element, and thus affect the temperature measurement accuracy.

3. Customization: If the above methods cannot solve the adaptation problem, you can consider customizing a special specification WTYY-1031 thermometer from the thermometer manufacturer. When customizing, detailed parameters such as mounting hole size and thread specifications should be provided.

When adjusting the mounting hole position, be sure to operate with caution to avoid damaging the equipment. If you are not sure about the operation, it is recommended to seek help from professionals.

After determining that the dial and interface of WTYY-1031 match the mounting hole position, correct installation and maintenance are also the key to ensuring its long-term stable operation. Through correct installation and maintenance, the perfect adaptation of the thermometer and the equipment can be achieved, providing solid protection for temperature monitoring in industrial production.

When looking for high-quality, reliable thermometer, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:
E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229

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Indication AD16-22D/R30/AC/DC500V
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Electric motor Y2-132M-4
Brush Holder HDK-3
lvdt linear variable displacement transducer HTD-350-6
level switch CCHZ-10
Thermal Case Expansion TD-2-26
SENSOR MAGNETIC SENSOR SPEED XS12J3Y
Armor Sensor EZ1081-04-00-010 & EZ1901-040
bolts heater 1.2311(4)-φ36X1500
RELAY PROTEKSI IN ST571H-100-VM
Flow Switch LKB-01B
FITTING-GREASE M6 GB1152-79
Double branch thermistor WZPK2-323
Display Board 3KQZ407125U0100
Indication AD16-22B/R34/AC/DC400V
sight glass level transmitter DQS-76
LINE MANAGEMENT RELAY WDZ-5211A-521130-D220200
Large bolt electric heater ZJ-20-73
pressure differential transmitter HC0622-24
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IGNITOR SPARK ROD MAIN BOILER XDZ-2F-3100
BELT TAKE UP PULLEY GT2150307
module E1698.32
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Tachometer XJZC-03A
Digital Temperature Monitor LWK-Z3T8(TH)
GAUGE TEMPERATURE 50EI60E0400/2500FXNH
SEMICONDUCTOR MTC-400-14
Stainless quake-proof manometer YTA-100-BF