Product details
Weiss Compound Gauge | 2.5″ Dial | 30″ Hg Vac to 300 PSI | 1/4″ NPT
Product Description
This Weiss compound gauge features a 2.5-inch (63 mm) dial with a specialized range of 30″ Hg Vacuum to 300 PSI. In the UAE’s industrial and cooling sectors, compound gauges are critical for systems where pressure can drop below atmospheric levels, such as during pump priming, filter monitoring, or refrigeration cycles in Dubai and Abu Dhabi.
The gauge is built with a rugged stainless steel or black-finished case (depending on the specific series) and high-quality brass internals. Its 1/4″ NPT lower mount (bottom) connection is the regional standard, ensuring a secure fit into standard manifolds. The clear, high-contrast dial allows technicians to transition seamlessly from monitoring vacuum levels to high-pressure readings without changing instruments.
Key Features
- Dual Functionality: Measures vacuum in inches of Mercury (” Hg) and positive pressure in PSI, perfect for complex fluid systems.
- Compact 2.5″ Profile: Provides a perfect balance between space-saving design and high readability for equipment skids.
- ASME Grade B Accuracy: Meets $\pm$3-2-3% accuracy standards, ensuring reliable monitoring for system diagnostics and safety.
- Rugged Construction: Designed to withstand the high ambient temperatures and demanding conditions of Middle Eastern mechanical rooms.
- Brass Sensing Element: Utilizes a precision-engineered brass Bourdon tube for longevity with non-corrosive air, water, and gases.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Dial Size | 2.5″ (63 mm) |
| Range | 30″ Hg Vac to 0 to 300 PSI |
| Connection Location | Lower Mount (Bottom) |
| Connection Size | 1/4″ NPT |
| Case Material | Black Painted Steel / Stainless Steel |
| Internal Material | Brass Tube and Socket |
| Accuracy | $\pm$
3-2-3% (ASME B40.100 Grade B) |
| Application | Pumps, Refrigeration, HVAC, Vacuum Systems |
Frequently Asked Questions
- Q: Why do I need a compound gauge instead of a standard pressure gauge?
- A: If your system (like a pump suction line) ever pulls a vacuum, a standard gauge could be damaged or provide no reading. A compound gauge safely handles both states.
- Q: Is this gauge liquid-filled?
- A: Standard compound gauges are “Dry.” However, if your pump vibrates significantly, a liquid-filled (LF) version is recommended to protect the internal mechanism.
- Q: Can this be used for R410A refrigeration testing?
- A: Yes, provided the system pressure does not exceed 300 PSI. Always check that the media is compatible with the brass internals.