Van Stone Thermowells
Description
Van Stone thermowells are specialized components used to protect temperature sensors from harsh environments. They are machined from a solid bar and feature a surface with a phonographic spiral serration. These thermowells are positioned between the nozzle and cover flange, providing a robust enclosure that safeguards the sensor from mechanical or chemical damage, ensuring the sensor's longevity and reliability in high-pressure applications .
Working Principle
Van Stone thermowells operate by enclosing the temperature sensor within a pressure-tight barrier. This design allows the thermowell to withstand high pressures and protect the sensor from environmental factors such as corrosive chemicals and mechanical wear. The phonographic spiral serration on the surface enhances the sealing capability between the nozzle and cover flange, ensuring that the sensor remains unaffected by the external environment. This protection is crucial for maintaining accurate temperature readings and reducing the need for frequent sensor replacements .
Applications
Van Stone thermowells are particularly useful in high-pressure applications. They are commonly used in industries such as oil and gas, where they protect sensors in onshore drilling rigs. These thermowells ensure accurate readings of drilling fluids, which is essential for the performance and safety of the equipment .
Advantages over other Thermowells
One of the main advantages of Van Stone thermowells is their ability to handle high-pressure environments due to their solid bar construction and spiral serration design. This makes them more suitable for high-pressure applications compared to other types of thermowells, such as threaded or socket weld thermowells, which may not offer the same level of protection and durability in such conditions .
Limitations
A potential limitation of Van Stone thermowells is their initial cost, which may be higher due to the machining from a solid bar and the specialized design features. Additionally, their installation may require more time and expertise compared to simpler thermowell designs, potentially increasing the initial setup costs .
Considerations
When considering Van Stone thermowells, it is important to evaluate the initial costs, which can be higher due to their robust construction. However, their durability and ability to protect sensors in high-pressure environments can lead to lower operating expenses over time, as they reduce the frequency of sensor replacements and maintenance. The accuracy of temperature measurements is maintained due to the protection offered by the thermowell, ensuring reliable data for process control. Replacement and maintenance costs are minimized due to the extended lifespan of the sensors protected by Van Stone thermowells .
from Pyromation
A thermowell is a pressure-tight receptacle that protects and extends the life of a temperature sensor in processing applications where the sensor is not mechanically or chemically compatible with the process environment. Installed directly into piping systems, thermowells facilitate sensor... [See More]
- Connection Means: Flanged; Van Stone
- Material of Construction: Alloy Steel (optional feature); Brass (optional feature); Carbon Steel (optional feature); Hastelloy B&C (optional feature); Monel (optional feature); Nickel (optional feature); Stainless Steel (optional feature); Other Material (optional feature) (Zirconium)
- Bore Diameter: 0.2600
- Coatings: Teflon--coated (optional feature); Tantalum or Titanium jacket (optional feature)
from Tempco Electric Heater Corporation
If your filter selections do not return your desired results from our standard configurations, please continue to select your Specifications on the right. You can submit your Wish List to Tempco. Thermowells are available in the following materials: Steel. Brass. 316 Stainless Steel. 304 Stainless... [See More]
- Connection Means: Flanged; Van Stone; Threaded
- Barrel or Shank Style: Stepped Shank well; Straight Shank; Tapered Shank
- Material of Construction: Brass; Monel; Stainless Steel; Other Material (Steel)
from Pyromation
A thermowell is a pressure-tight receptacle that protects and extends the life of a temperature sensor in processing applications where the sensor is not mechanically or chemically compatible with the process environment. Installed directly into piping systems, thermowells facilitate sensor... [See More]
- Connection Means: Flanged; Van Stone
- Material of Construction: Alloy Steel (optional feature); Brass (optional feature); Carbon Steel (optional feature); Hastelloy B&C (optional feature); Monel (optional feature); Nickel (optional feature); Stainless Steel (optional feature); Other Material (optional feature) (Zirconium)
- Bore Diameter: 0.2600
- Coatings: Teflon--coated (optional feature); Tantalum or Titanium jacket (optional feature)
from Tempco Electric Heater Corporation
Series 60 (.260" Bore) for 1/4" and 3/8" Elements. Van Stone. Thermowells are available in the following materials: Steel. Brass. 316 Stainless Steel. 304 Stainless Steel. Monel. [See More]
- Connection Means: Van Stone
- Material of Construction: Brass; Monel; Stainless Steel; Other Material (Steel)
- Bore Diameter: 0.2600
- Barrel or Shank Style: Straight Shank
from Pyromation
A thermowell is a pressure-tight receptacle that protects and extends the life of a temperature sensor in processing applications where the sensor is not mechanically or chemically compatible with the process environment. Installed directly into piping systems, thermowells facilitate sensor... [See More]
- Connection Means: Flanged; Van Stone
- Material of Construction: Alloy Steel (optional feature); Brass (optional feature); Carbon Steel (optional feature); Hastelloy B&C (optional feature); Monel (optional feature); Nickel (optional feature); Stainless Steel (optional feature); Other Material (optional feature) (Zirconium)
- Bore Diameter: 0.2600
- Coatings: Teflon--coated (optional feature); Tantalum or Titanium jacket (optional feature)
from Tempco Electric Heater Corporation
Series 65 (.385" Bore) for 1/4" and 3/8" Elements. Van Stone. Thermowells are available in the following materials: Steel. Brass. 316 Stainless Steel. 304 Stainless Steel. Monel. [See More]
- Connection Means: Van Stone
- Material of Construction: Brass; Monel; Stainless Steel; Other Material (Steel)
- Bore Diameter: 0.3850
- Barrel or Shank Style: Straight Shank
from Thermometrics Corporation
Backing flanges for van stone wells are available. Specify as separate item giving flange size, rating and material. [See More]
- Connection Means: Van Stone
from Ashcroft Inc.
The Ashcroft ® Van Stone thermowell is used when pressure, high velocity and corrosive process media exist. Designed to mate between two existing flanges. Serving to isolate and protect, it also allows the sensing instrument to be removed without requiring process shut down. An ideal solution... [See More]
- Connection Means: Van Stone
- Barrel or Shank Style: Tapered Shank
from Durex Industries
Thermowells are manufactured from drilled bar stock and have threaded NPT process connections or flanges for direct immersion into high pressure or corrosive applications. The thermocouple element is mounted into the thermowell and is typically spring loaded for positive contact to the bottom wall... [See More]
- Connection Means: Flanged; Van Stone
- Socket/Stem Insertion Length: 4
- Stem Length: 6.25
- Bore Diameter: 0.2600
from OMEGA Engineering, Inc.
Van Stone Thermowells [See More]
- Connection Means: Van Stone
- Socket/Stem Insertion Length: 2 to 22
- Stem Length: 4 to 24
- Bore Diameter: 0.2600 to 0.3850