Product details
Weiss Industrial Thermowell | E35-75SS | 7.5″ Length | 304 Stainless Steel
Product Description
The E35-75SS is a precision-machined protective housing that allows for the installation, maintenance, and replacement of industrial thermometers without shutting down or draining the system. The “E35” designation identifies this as a 3/4″ NPT process connection with a Stepped Stem (Reduced Tip) profile. The stepped design is specifically engineered to reduce thermal mass at the sensing point, ensuring a faster temperature response for the thermometer.
The “75” indicates an overall length of 7.5 inches (190 mm), and the “SS” confirms it is manufactured from 304 Stainless Steel. This length is specifically designed to house 6-inch (150 mm) stem thermometers. In Dubai and Abu Dhabi mechanical rooms, this 7.5-inch well provides the necessary reach to bypass standard pipe insulation (lagging) and ensure the thermometer bulb is fully immersed in the center of the fluid flow.
Key Features
- 304 Stainless Steel Durability: Provides excellent resistance to oxidation and corrosion in freshwater, chilled water, and general heating systems.
- Stepped Stem for Fast Response: The reduced diameter at the tip allows for quicker heat transfer from the fluid to the thermometer sensor.
- 5″ Total Length: Ideal for 6-inch stem thermometers, providing a 1.5-inch extension to accommodate pipe insulation layers.
- Standard 3/4″ NPT Connection: The most widely used mounting size in commercial and industrial piping, ensuring easy installation into standard tees.
- Structural Protection: Protects the thermometer from bending or snapping due to high-velocity fluid flow (Wake Frequency protection).
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | E35-75SS |
| 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) |
| Bore Diameter | .260″ (Fits standard industrial stems) |
Frequently Asked Questions
- Q: Is there a difference between E35-75SS and EN6-75SS?
- A: These models are often identical in function. The “E35″ nomenclature typically refers to the connection size (3/4” NPT), while different regions or catalogs might use the “EN6” coding for the same physical part.
- Q: Which thermometer fits this thermowell?
- A: Any industrial thermometer with a 6-inch stem, such as the Weiss A9VU6 or 9VBM6 series.
- Q: Can this be used for steam service?
- A: Yes, 304 Stainless Steel is suitable for low-to-medium pressure steam. For high-pressure or superheated steam, a heavy-duty tapered well in 316 SS or Chrome-Moly may be required.