Product details
Weiss Industrial Gauge | 4PG-1 | 4.5″ Dial | 0-200 PSI/KPA
Product Description
The 4PG-1 belongs to the Weiss Premium Industrial series, characterized by its large 4.5-inch (115 mm) dial. This model offers a dual-scale range of 0-200 PSI (0-1400 KPA), making it perfect for monitoring fire pump discharge, main water headers, and industrial air systems in Dubai and Abu Dhabi where precise, high-visibility readings are required.
Constructed with a rugged, high-impact polypropylene or aluminum case (depending on the specific series configuration) and precision brass internals, the 4PG-1 is designed to withstand the demanding conditions of Middle Eastern plant rooms. The 1/4″ NPT lower mount (bottom) connection is the industry standard for easy integration into existing piping manifolds.
Key Features
- Oversized 4.5″ Dial: Provides exceptional readability from a significant distance, reducing the risk of parallax errors during manual logging.
- Dual Scale Readout: Displays pressure in both PSI and KPA, satisfying diverse international engineering standards used in UAE projects.
- ASME Grade A Accuracy: Typically offers a higher accuracy rating ($\pm$1% of full scale) than standard utility gauges, suitable for critical process monitoring.
- Industrial Durability: Features a heavy-duty case and a shatter-resistant lens designed to handle high ambient heat and humidity.
- Precision Brass internals: Utilizes a high-grade brass Bourdon tube and socket for consistent performance with non-corrosive media like air, water, and oil.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | 4PG-1 |
| Dial Size | 4.5″ (115 mm) |
| Range | 0 – 200 PSI / 0 – 1400 KPA |
| Connection Location | Lower Mount (Bottom) |
| Connection Size | 1/4″ NPT |
| Case Material | High-Impact Polypropylene / Aluminum |
| Internal Material | Brass Tube and Socket |
| Accuracy | $\pm$
1% (ASME B40.100 Grade A) |
| Application | Industrial HVAC, Fire Protection, Main Headers |
Frequently Asked Questions
- Q: Why use a 4.5″ dial instead of a standard 2.5″ dial?
- A: In large plant rooms, gauges are often mounted high up or behind equipment. The 4.5″ face ensures technicians can clearly read the pressure without needing a ladder or getting too close to hot machinery.
- Q: Is the 4PG-1 suitable for outdoor use in coastal UAE?
- A: While the case is rugged, for direct outdoor exposure near the sea, a liquid-filled stainless steel model is usually preferred to prevent salt-air corrosion of internal parts.
- Q: Can this be used for steam?
- A: Yes, but only when installed with a coil-type siphon (pigtail) to protect the brass internals from direct contact with high-temperature steam.