Product details
Weiss Bimetal Socket | BN6-75BS | Brass | 6″ Stem with Extension Neck
Product Description
The BN6-75BS is a critical accessory for bimetal thermometers used in industrial and HVAC applications. It is specifically designed for instruments with a 6″ stem. The “BN” series is distinguished by its Extension Neck (Lagging Extension), which provides the necessary clearance for pipe insulation. In the UAE’s T3 climate, where chilled water lines are heavily insulated to prevent condensation, the extension neck ensures the thermometer head remains accessible and visible outside the insulation layer.
Manufactured from high-quality Brass, this socket offers superior thermal conductivity for water-based media. It acts as a permanent pressure seal, allowing for the removal or replacement of the bimetal thermometer without draining the system, ensuring continuous operation for district cooling and commercial building plants.
Key Features
- Extension Neck Design: Specifically engineered to clear pipe insulation, making it ideal for chilled and hot water systems.
- Rapid Thermal Transfer: High-grade brass construction ensures the bimetal sensing element reacts quickly to temperature fluctuations.
- System Protection: Provides a robust barrier that protects the thermometer stem from high-velocity flow and mechanical stress.
- Universal Threads: Features a 3/4″ NPT process connection and standard internal threads compatible with all Weiss bimetal thermometers.
- Leak-Free Service: Facilitates instrument maintenance and calibration without requiring a system shutdown or fluid drainage.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | BN6-75BS (BN6 x 3/4″ NPT) |
| Material | Brass |
| Stem Length Compatibility | 6″ |
| Process Connection | 3/4″ NPT |
| Extension Neck (Lag) | Standard Extension for Insulation |
| Internal Thread | 1/2″ NPT (Standard for Bimetal Thermometers) |
| Application | Insulated HVAC Pipes, Chilled Water, Industrial Fluids |
Frequently Asked Questions
- Q: What is the difference between a “Thermowell” and a “Bimetal Socket”?
- A: While often used interchangeably, a bimetal socket is specifically threaded (usually 1/2″ NPT) to match the connection on a bimetal dial thermometer, whereas standard industrial wells use a 1-1/4″ – 18 thread.
- Q: Can I use this for a 4″ stem thermometer?
- A: No. The stem length of the thermometer must match the socket length exactly (6″) to ensure the sensor is properly seated for accurate readings.
- Q: Is the extension neck long enough for 2-inch insulation?
- A: Yes, the standard extension neck on the BN series is designed to accommodate typical industrial insulation thicknesses used in the UAE.
