Product details
Weiss Industrial Thermowell | EN6-75SS | 7.5″ Length | 304 Stainless Steel
Product Description
The EN6-75SS is a precision-machined protective sleeve that facilitates the installation and removal of thermometers without the need to drain or depressurize the piping system. The “EN” designation identifies this as a 304 Stainless Steel Stepped Stem thermowell. The stepped design (reducing the diameter at the tip) is specifically engineered to minimize thermal lag, providing a faster temperature response compared to straight-shank wells.
The “6” denotes a 3/4″ NPT process connection, which is the most common standard for commercial piping headers. The “75” indicates an overall length of 7.5 inches (190 mm). This length is specifically designed to house 6-inch (150 mm) stem thermometers, providing a 1.5-inch extension that clears standard thermal insulation in Dubai and Abu Dhabi mechanical rooms.
Key Features
- 304 Stainless Steel Durability: Provides excellent resistance to corrosion and oxidation in freshwater, chilled water, and general heating applications.
- Stepped Stem for Faster Response: The reduced tip diameter allows heat to transfer more quickly to the thermometer bulb for real-time monitoring.
- 5″ Total Length: Ideal for 6-inch stem thermometers, ensuring the sensor is deeply immersed in the fluid flow while the thermometer face remains accessible above the insulation.
- 3/4″ NPT Process Connection: The industrial standard mounting size, ensuring compatibility with most pipe tees and fittings.
- Vibration Protection: Shields the thermometer stem from bending or damage caused by high-velocity fluid flow (Wake Frequency).
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | EN6-75SS |
| Overall Length | 7.5″ (190 mm) |
| Insertion Length (U) | 6″ (150 mm) |
| Material | 304 Stainless Steel |
| Stem Design | Stepped Shank |
| Process Connection | 3/4″ NPT |
| Internal Thread | 1-1/4″ – 18 UNEF (Industrial Standard) |
| Application | HVAC / Chilled Water / Hot Water |
Frequently Asked Questions
- Q: Why choose the EN series (Stepped) over the ER series (Reduced Tip)?
- A: Both offer fast response. The EN series stepped design is often preferred for higher-velocity flows as it maintains a thicker base for structural strength while still reducing mass at the tip.
- Q: Which thermometer fits this thermowell?
- A: It is designed to house any standard industrial glass or bimetal thermometer with a 6-inch stem, such as the Weiss A9VU6 or 9VBM6 series.
- Q: Is 304 Stainless Steel suitable for outdoor use?
- A: Yes, for most environments. However, if the installation is in a highly corrosive or coastal area near the sea in the UAE, 316 Stainless Steel (ESS series) may be preferred.