Thermowell is a product used to prevent damage of sensors caused by exposure to gas, fluids and so on. Thermowell is installed in pipes and tanks to improve durability, easy replacement of sensor and anti-corrosion while the machine is running.
So, thermowell is used in many fields such as general, petrochemicals, food industries and so on.
Thermowell's production method and material is selected the operating temperature, velocity of flow, pressure, corrosive, hermeticity, response rate, and durability
1. Thread Type
2. Flange Type
3. Straight Type
4. Taper Type
5. Step Type
6. Weld Type
Metalic Protection Tube Specifications | |||
|---|---|---|---|
Material |
Operating Temp. |
Max Temp. |
Features |
Monel |
500 |
600 |
· Exellent resistance to water vapor, high pressure and corrosion. |
Plain Steel |
800 |
900 |
· Good resistance to reducing atmosphere but less resistant to oxidation and acids attacks. |
SUS304 |
900 |
1,000 |
· Widely used as common protection tube against heat and corrosion but not recommendable for use in the presence of sulphur or reducing flame. |
SUS304L |
900 |
1,000 |
· Less carbon content (C=0.03%) than SUS304 and excellent resistance to grain boundaly corrosion. |
SUS316 |
900 |
1,000 |
· Contains Molybdenum and excellent resistance to acid and alkali. |
SUS316L |
950 |
1,050 |
· Less carbon content than SUS316 and has better resistance to heat, acid and alkali. |
SUS310 |
950 |
1,050 |
· High Mi-Cr content so it has an optimal high temperature strength with resistance to oxidation at high temperatures. |
SUS347 |
900 |
1,000 |
· Nb-Ta content more corrosion resistant than SUS304 and has better corrosion resistance to chromium depletion. |
SUS446 |
1,050 |
1,125 |
· High Chromium content excellent for heat resistance and oxidation resistance and specially excellent for sulphur and reducing gas. |
Inconel600 |
1,175 |
1,345 |
· Excellent for resistance to oxidation at high temperature but It us fragile in hydrogen environment and very weak to corrosion in sulphur. |
Platinum 10% + Rhodium |
1,550 |
1,850 |
· Excellent for resistance to oxidation and inert at high temperaiure. |
Tantalum |
Oxi 300 |
2,610 |
· Good at acids but weak at alkaly and oxidation and above 300℃ |
Molybdenum |
Oxi 300 |
2,985 |
· It has excellent mechanical strength up to 1500℃ when used in inert, reduced or vacuum atmosphere. Can withstand metal steam at high temperatures but graphite and reaction. Air and oxygen-containing gases are not available. |
