10 best thermowells
A thermowell is a device used in various industrial applications to protect temperature sensors (such as thermocouples or resistance temperature detectors) from harsh process conditions while allowing them to accurately measure temperature.These devices are commonly found in industries where precise temperature measurement is crucial, including chemical processing, oil and gas, pharmaceuticals, and more.
Here are some key points about thermowells:
Protection: The primary function of a thermowell is to shield the temperature sensor from corrosive or abrasive materials, high pressure, and high-velocity flow. This protection extends the sensor's lifespan and ensures its accuracy.
Design: Thermowells are typically cylindrical or tapered tubes made from materials like stainless steel, carbon steel, or exotic alloys. The material chosen depends on the specific process conditions and the corrosiveness of the environment.
Installation: Thermowells are installed in pipes, tanks, or vessels, and the temperature sensor is inserted inside the thermowell. The assembly is then connected to the process line or system.
Variety: There are various types of thermowells available, including threaded, flanged, and welded designs. The choice of thermowell type depends on factors like installation requirements, pressure, and temperature conditions.
Response Time: The design of the thermowell can affect the response time of the temperature sensor. Thin-walled thermowells have a faster response time but offer less protection, while thick-walled thermowells provide better protection but have a slower response time.
Maintenance: Regular inspection and maintenance of thermowells are essential to ensure accurate temperature measurement. Over time, thermowells can corrode or accumulate deposits that can affect sensor accuracy.
Compliance: In many industries, thermowells must comply with specific standards and regulations to ensure safety and accuracy. These standards may include ASME, ASTM, and API standards, among others.
Application: Thermowells are used in a wide range of applications, including monitoring and controlling temperature in industrial processes, HVAC systems, and laboratory equipment.
In summary, thermowells are essential components in industrial temperature measurement applications, providing protection to temperature sensors and ensuring accurate and reliable temperature readings in challenging environments. Proper selection, installation, and maintenance of thermowells are crucial to their effectiveness.
Below you can find our editor's choice of the best thermowells on the market
10mm ⌀ - 1/2 inch thermowell weldless Stainless Steel 304 for Beer fermenter ds18b20 pt100 Homebrew Boiler 30 50 100 150 200 300 400 500mm (50mm)
Lepai
Product description
10mm - 1/2 inch thermowell weldless stainless steel 304 for beer fermenter ds18b20 pt100 homebrew boiler 30 50 100 150 200 300 400 500mm
Meprotal 2pcs Stainless Steel 1/2 Inch NPT 100mm Thermowell Weldless Temperature Sensor Thermowell with Plastic Cap for Homebrew Brewing Beer Fermenter
Meprotal
Product description
✨Welcome to Meprotal Store✨
Leave us a message when you meet any product quality issue, we will reply you as soon as possible (usually within 48 hours).
Specification:
Material: Stainless Steel & Plastic
Weight : 120g
Color: White Cap
Thread & Rod Length: 100mm/ 4inch
Pipe Internal Diameter: 6mm/ 0.24inch
Pipe External Diameter: 8mm/ 0.31inch
Rod Diameter: 8mm/ 0.31inch
Total Size: 138*21mm/ 5.4*0.83inch(L*W)
Package Content:
2packs X Thermowell
Note:
Please allow 1-2mm error due to manual measurement, please make sure you do not mind before you bid.
- 【Package Content】2pcs X 100mm 1/2inch NPT Thermowell.
- 【Size】Thread & Rod Length: 100mm/ 4inch; Pipe Internal Diameter: 6mm/ 0.24inch; Pipe External Diameter: 8mm/ 0.31inch; Rod Diameter: 8mm/ 0.31inch; Total Size: 138*21mm/ 5.4*0.83inch(L*W).
- 【Material】Made of high quality stainless steel. Anti-corrosion and durable. It has strong rust resistance and thermal conductivity. Long service life.
- 【Fine Workmanship】The threads are clear and deep. A tight fit is effective against water. The thermowell permits removal of the temperature instrument for replacements, repair or testing without effecting the process media or the system.
- 【Application】A properly selected thermowell will protect the temperature instrument from possible damage caused by these process variables. You may use our thermowells for all process systems where pressure, flow rate or viscosity, abrasive and corrosive materials exist alone or together.
Homebrew 1/4in Stainless Steel Thermowell and no. 7 Bung Stopper for Glass Carboy Fermentation Thermometer Probe
- MONITOR FERMENTATION: The G. Francis Homebrew 1/4" Stainless Steel Thermowell and #7 Bung Stopper for Glass Carboy Fermentation Temperature Thermometer Probe gives your temperature controller accurate readings to keep your beer at a precise temperature for sterile temperature control; Heating kit and carboy not included
- KEEP OUT CONTAMINATION: Place a probe inside the tube and then inside your beer fermentation vessel (not included) to monitor your wort while keeping out harmful contaminants and aeration
- USE YOUR CARBOY: Compatible with most standard glass carboys, temperature controllers, and airlocks; The thermowell is entirely removable from the stopper to fit different sized configurations (#10 stoppers are recommended for plastic carboys)
- COMBINATION SET: In addition to the thermowell, the included #7 bung plug stopper has an airlock hole with a 0.25-inch (6mm) diameter for standard size airlock to prevent your carboy from building up pressure; The stopper has a 1.3-inch (33mm) top diameter and 0.9-inch (24mm) bottom diameter and includes all hardware needed for exact temperature control even in colder environments
- SECURE FIT: Constructed with a stainless-steel tube and silicone bung stopper; Make sure the carboy surface and the stopper itself are dry in order for it to stay secure once pressed into carboy; Approximate 0.25-inch (6mm) tube inside diameter (ID); 15.5-inch (39.4cm) overall length; 14.25-inch (36.2cm) tube and 1.1-inch (2.8cm) stopper
User questions & answers
| Question: | What is the inside diameter of the thermowell? Inkbird temp controller probe OD is 0.2"/5mm; will it fit |
| Answer: | Yes. it include the hanging rails |
| Question: | Will this fit the probe for Johnson A421? They are bigger than inkbird |
| Answer: | Yes one lock lock 2 drawers and one time only can open one drawer |
| Question: | Will this work in an SS brewtech 7 gallon fermenter. The hole in the airlock lid is much smaller than a carboys |
| Answer: | Its offwhite. more bright than grey. like ral color number 9010 |
| Question: | Does the viscous nature of StarSan, used to sanitize, require you to dry the carboy orifice in order for the silicone stopper stay in place |
| Answer: | 70 pounds no problem |
Product features
About the G. Francis Thermowell & Stopper
Controlling temperature is vital for good fermentation, so use the G. Francis 1/4" Thermowell and #7 Bung Stopper for accurate positioning and readings even deep inside the fermenting bucket.
It keeps out contaminants and aeration and is compatible with standard glass carboys, temperature controllers, and airlocks.
REMOVABLE THERMOWELL
The thermowell is removable from the stopper to fit different sized configurations.
PREVENT PRESSURE BUILDUP
The included #7 silicone stopper has an airlock hole to prevent your carboy from building up pressure.
EASY TO USE
Dry the carboy surface and the stopper, place a probe inside the tube and then inside your beer fermentation vessel. The thermowell and stopper will stay secure once properly pressed into the carboy.
Homebrew Weldless Thermowell 1/2"Female NPT 8mm Inner Diameter (Weldless Thermowell 1/2"Female NPT)
Product description
Package Included:
1 x SS Thermowell
1 x Stainless Washer
1 x 1/2" Lock Nut
2 x Silicone O-rings
- Material: 304 Stainless Steel
- Requieres a 7/8" drill bit to install.To prevent leaking, wrap the 1/2" threads with Teflon tape prior to installing the hole.
- The inner diameter of thermowell is for 1/4" outer diameter stem thermometers.
- They are Stainless Steel which is the ideal metal for use in cooking, sanitation, brewing or otherwise heating things to be consumed.
- The thermowell is a device that install into your kettle that allow a thermometer, digital thermometer probe, or temperature controller sensor to be inserted but kept isolated from the liquid the thermowell is immersed in.
User questions & answers
| Question: | How long is this probe? The one that I've got is way too long, probably 8" and it blocks me from having full access for my immersion chiller. Thanks |
| Answer: | Yes, the door has a magnet, and it will not open randomly. Any other questions, feel free to contact us. Sincerely, Vogue Carpenter Service |
Trerice 3-4F2 Thermowells for Industrial Thermometers, 3/4" NPT Connection
Trerice
Product description
Test well for 3.5" Trerice Industrial Thermometers. 3/4" NPT connection.
- Product Type:Thermometer
- Item Package Dimension:3.048 cm L X 3.81 cm W X 5.842 cm H
- Item Package Weight:0.181 kg
- Country Of Origin: China
User questions & answers
| Question: | What is the brass alloy used in this product? (how much zinc? Any Tin?), and will it stand up to chlorinated pool water (for solar pool heater panels |
| Answer: | Thanks for your attention. Of course, it's suitable to collect wine cabinet or other something you like, but you need to pay attention to the height, size of each tier: L*W*H = 15.5*11.5*10.8 Inches. Any other question, feel free to contact us. Sincerely, Vogue Carpenter Service |
1/2 inch thermowell Stainless Steel 304 with Plastic Cap for Beer fermenter ds18b20 pt100 Homebrew Boiler 30 50 100 150 200 300 400 500mm (30mm)
Lepai
Product description
1/2 inch thermowell Stainless Steel 304 with Plastic Cap for Beer fermenter ds18b20 pt100 Homebrew Boiler 30mm 50mm 100mm 150mm 200mm 300mm 400mm 500mm
- the internal diameter of the pipe is 6mm
- the external diameter of the pipe is 8mm
User questions & answers
| Question: | Is there a source for the plastic compression fitting |
| Answer: | The bung is drilled with 2 holes. If you can find a double drilled bung in the size that fits the opening on the cover then it should work. |
| Question: | Do you have this 1/2" NPT thermowell in 150mm and 200mm lengths |
| Answer: | Properly mixed StarSan solution shouldn't be any more viscous than plain water. With that said, any moisture at all will tend to force a rubber or silicone stopper out of a glass carboy. The solution I've found to work best is to use a cork that's one half size smaller. My 6 gallon glass carboy has a standard neck size for a size 7 cork. If I use a 7, the cork pops up every. single. time. If I use a 6.5 rubber cork, it always stays in. |
| Question: | Does this come with washers/seals and a nut to diy install into a keg? I'm going to drill a hole in the top of a corny keg lid, fyi |
| Answer: | Yes, of course Your cloth will keep clean and dry for a long time in this small cabinet. Good to use. |
| Question: | Is this a 1/2 NPT thread |
| Answer: | Hello Thanks for your interesting If there are questions or suggestions that come up before, during, or after your purchase, please do not hesitate to contact our Customer Care team. We’ll do our best to take care of your needs and questions. |
DuraChoice 2-1/2" Thermowell Stainless Steel 316-1/2" NPT Connections …
Product description
USA Support
USA Brand
USA Stock
USA Services
Thermowells for temperature instruments are recommended for all process systems where pressure, velocity or viscous, abrasive and corrosive materials are present individually or in combination. A properly selected thermowell will protect the temperature instrument from possible damage resulting from these process variables. Furthermore, a thermowell permits removal of the temperature instrument for replacements, repair or testing without effecting the process media or the system.
User questions & answers
| Question: | how long is the threaded section |
| Answer: | No! The acid and chlorine will eat it fast |
| Question: | what is the ID of the thermowell stem |
| Answer: | Overall the part is 6 inches. The probe is about 5 inches. It works fine in my Spike conical with the cooling coil. |
| Question: | Is this truly 1/2 npt threads? Do they tighten properly in US made npt fittings |
| Answer: | I'm assuming that you're referring to the Inkbird ITC-308. If so, the short answer is yes, it's a perfect fit. |
| Question: | Is the 2-1/2" dimension the total length or only the non threaded section |
| Answer: | Yes, I use both, the A421 probe fits fine. |
1/2 inch Brewing thermowell Stainless Steel 304 with Cap for Beer fermenter Homebrew Boiler 30mm 50mm 100mm 150mm 200mm 300mm 400mm 500mm (100mm)
Lepai
Product description
1/2 inch Brewing thermowell Stainless Steel 304 with Cap for Beer fermenter Homebrew Boiler 30mm 50mm 100mm 150mm 200mm 300mm 400mm 500mm
- Internal diameter 6mm
- External diameter 8mm
User questions & answers
| Question: | What is the thread specification on the back of the thermowell, for the plastic wire gland |
| Answer: | Dear, Many thanks for your message, Our production will restart in around 1 week, sorry for the inconvenience. Have a nice day! Sincerely yours, |
| Question: | Do you have the 100mm version |
| Answer: | No, it dosent come with a nut, it is designed for an NPT threaded hole |
| Question: | Hello, i assume based on everything i see on this page that the thermowell uses a 1/2npt thread |
| Answer: | Yes it is 1/2 npt |
Otomatico 5 Pieces - Pipe for thermowell Stainless Steel 304 Internal Diameter 5/6/7mm Immersion Well 30 50 100 150 200 300 400 500 mm (Internal Diameter 5mm, Length 50mm)
Product description
5 pieces - Pipe for thermowell stainless steel 304 internal diameter 5/6/7mm immersion well 30 50 100 150 200 300 400 500 mm
- Tolerance: +/- 0.2mm
1/2" NPT Threads Stainless Steel Thermowell for Temperature Sensors
Yosoo
Product description
Description:
Thermowells for temperature instruments are recommended for all process systems where pressure, velocity or viscous, abrasive and corrosive materials are present individually or in combination. A properly selected thermowell will protect the temperature instrument from possible damage resulting from these process variables. Furthermore, a thermowell permits removal of the temperature instrument for replacements, repair or testing without effecting the process media or the system.
Specifications:
Material: Stainless steel 201
Color: Silver
Internal Thread: 1/2"NPT
External Thread: 1/2"NPT
Length: 12.1cm / 4.76"
Hexagon Size: 2.3cm / 0.9"
Rod Diameter: 1.3cm / 0.51"
- Material: Stainless steel
- Works nicely to replace a needle thermometer in brew kettle
- No bubbles, no pinhole and other blemishes
- The inlet fit 1/2 inch male pipe thread.Internal Thread: 1/2"NPT; External Thread: 1/2"NPT
- A quick fit thermowell protects your thermometer from possible damage.
User questions & answers
| Question: | What is the material of this item? Top specification: it says "304 stainless steel" but on the bottom description, it says "201 stainless steel |
| Answer: | The threaded areas, both internal and external, are 0.7" from the beginning of the threads to the end. |
| Question: | What is the bore diameter |
| Answer: | Can you give a more exact reading of ID? Like 0.24" or 0.26". I am trying to fit Inkbird ITC-1000 temperature probes. will they fit? |
| Question: | What is the pressure rating |
| Answer: | Yes, the 1/2" NPT products are true 1/2" NPT |
| Question: | What is the internal diameter of the metal tube? Thx |
| Answer: | On the non-threaded section has a length of 2-1/2." The total length is 4-1/4." |
| Question: | Are these rubber stoppers |
| Answer: | Dear, Do you mean that you only want the plastic cap, please? yes, we have it Have a nice day |
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