Thermowells for installation of apparatus
The product line of BITHERMA contains a wide range of Thermowells suitable for screwing in and for welding according to DIN 43772. Furthermore special designs according to your drawing and your special requirements can be produced.
Materials for challenging places of action:
Thermowells for screw-in and for weld-in are available in brass, carbon steel, stainless steel (304 and 316Ti), C 22.8, 15 Mo 3, 13 CrMo 44, PTFE and many more. For most aggressive media PTFE coatings on stainless steel are possible.
Most of the Thermowells are manufactured from solid material. Thermowells of multiple part are put together by hard soldering free of cadmium (brass) and by tungsten inert-gas welding TIG (stainless steel).
On request BITHERMA issues certificates acc. EN 10204 – 2.2 resp. 3.1 or 3.2 for almost all materials.
BITHERMA received the marking transfer certificate from the TÜV NORD Systems GmbH & Co. KG – branch Bielefeld.


PRODUCT DATA SHEETS PROTECTIVE SLEEVES (PDF) | CATALOG PAGE |
---|---|
Screw-in sleeves, DIN 43772, Form 5/6/8 and 9 | 070 |
Weld-in sleeves, DIN 43772, Form 4 | 072 |
Flange sleeves, DIN 43772, Form 2/3/4F – clamp flanges – union nuts with groove | 073 |
Protective Sleeves: Secure Use of Your Measurement Technology in Every Environment
For the safe use of our temperature measuring devices, professional installation on your machines and systems is indispensable. With the protective sleeves from Fa. BITHERMA’s product range, you are choosing the right accessory to securely utilize our measurement technology in any working environment. In addition to our standardized solutions made from robust materials, custom-made options are available upon request.
Protective Sleeves for Demanding Operating Environments
For the installation of our thermometers and other measuring devices, you make the right choice with weld-in sleeves or screw-in sleeves from Fa. BITHERMA’s range. In line with our offered measurement technology, we provide the corresponding sleeves that also meet the demands of your industrial environment. In our production process, we rely on a wide range of materials to address design, temperature, and other environmental factors. For example, trust in protective sleeves made of:
- Brass
- Steel
- PTFE
- Various Stainless Steel Grades
- Heat-Resistant Pressure Vessel Steel
For measurements in extremely aggressive media, an additional coating of our stainless steel solutions with Teflon is possible. Simply contact us and let us provide you with the appropriate solution. With our many years of experience, we know exactly which screw-in sleeves or weld-in sleeves are suitable for your working environment.
Custom Manufacturing of Protective Sleeves According to DIN Specifications or Custom Dimensions
Regardless of which material you choose for your protective sleeves, you will benefit from an exact fit into your machines and systems. This ensures that the sleeves are manufactured in accordance with DIN 43722, which Fa. BITHERMA strictly adheres to for all quality products. As a rule, all our products are manufactured from solid material. We join multi-part components in brass sleeves using cadmium-free hard soldering and in stainless steel sleeves using gas-shielded TIG welding.
Do you require custom-made protective sleeves for your machines and systems? No problem! We expertly implement individual solutions that exactly meet your needs. Technically, we rely on the description of the respective environmental conditions as well as the precise dimensions that you provide to us via drawing. Essentially, we can manufacture any type of protective sleeve, screw-in sleeve, or weld-in sleeve without restrictions.
Issuance of Acceptance Test Certificates Available
For almost all types of materials, Fa. BITHERMA is able to issue test certificates for acceptance in accordance with EN 10204 – 2.2, 3.1, or 3.2. Simply contact us if you require the acceptance of your protective sleeves. Additionally, our company is authorized by TÜV NORD Systems GmbH & Co. KG, based in Bielefeld, to reclassify material types. This ensures that the used weld-in sleeves or screw-in sleeves meet all requirements regarding technology, safety, and functionality.
Find and Order the Right Protective Sleeves for Your Needs Now
Whether it is a standardized solution of the highest quality or a custom-made design for your operation, Fa. BITHERMA is your contact partner. In addition to our protective sleeves, discover state-of-the-art measurement technology and other accessories in our complete catalog. Benefit from high quality at fair prices. To learn more about the specific product data of individual screw-in or weld-in sleeves, simply open the respective datasheet as a PDF. This way, you can easily find the appropriate protective sleeves with which you can perform all measurements on your machines and systems precisely and safely.
If you have any questions about individual products, feel free to contact us directly. We are happy to advise you personally on which sleeves and other items from our product range meet your operational requirements. With many years of experience in the industrial sector, we can competently assist your company.