Product details
Weiss Industrial Glass Thermometer | 45VA3-(0243) | 3″ Stem | 20-100°F/C
Product Description
The 45VA3-(0243) belongs to the Weiss 4500 series, offering high-level industrial accuracy in a compact 4.5-inch scale footprint. The “VA” designation identifies this as a 90-degree Rigid Angle thermometer, specifically designed for vertical pipe installations. This allows the scale to face the technician horizontally, ensuring clear visibility in Dubai and Abu Dhabi plant rooms where space is at a premium.
The (0243) identifier typically specifies the unique scale range for this model, which is 20 to 100°F (-7 to 38°C). This range is highly optimized for Chilled Water (CHW) and cooling tower return systems, providing extra resolution at the lower end of the cooling spectrum. The compact 3-inch (75 mm) stem is ideally suited for smaller pipe diameters or narrow manifolds, providing accurate thermal readings without causing significant flow restriction.
Key Features
- Compact 4.5″ Scale: Perfect for installation on booster pumps, chiller skids, and in tight mechanical enclosures where a full-sized 9-inch model is too large.
- Rigid 90-Degree Angle: Provides a stable, vibration-resistant mounting for vertical pipelines, ensuring the face is oriented correctly for easy reading.
- Extended Low-End Resolution: The 20-100°F range provides detailed monitoring for cooling system efficiency, particularly for systems operating near freezing.
- Mercury-Free Blue Liquid: Features a high-visibility blue spirit liquid that is environmentally safe, non-toxic, and easy to read against the white scale.
- Durable Aluminum Case: Housed in a rugged, die-cast aluminum case that offers superior impact resistance compared to standard plastic models.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | 45VA3-(0243) / 20-100 |
| Scale Size | 4.5″ (115 mm) |
| Stem Length | 3″ (75 mm) |
| Range | 20 to 100°F / -7 to 38°C |
| Mounting | Rigid 90° Angle (Fixed) |
| Case Material | Die-Cast Aluminum |
| Internal Liquid | Blue Spirit (Mercury-Free) |
| Connection | 1-1/4″ – 18 UNEF Coupling Nut |
| Accuracy | $\pm$
1% of Range |
Frequently Asked Questions
- Q: When should I use the 4.5″ scale instead of the 9″ series?
- A: Use the 4.5″ scale for equipment manifolds or small-diameter piping where a 9″ thermometer would be physically obtrusive or prone to accidental damage.
- Q: Does this include the thermowell?
- A: For pressurized applications, it must be installed in a 3″ Weiss Thermowell (typically model E35-35BS) to ensure a leak-proof seal and protect the thermometer stem.
- Q: Is this model suitable for outdoor use?
- A: Yes, the die-cast aluminum case and sealed glass front are designed to withstand the humidity and saline air common in UAE coastal regions.
