Product details
Weiss Pressure Gauge | TL45-P200 | 4.5″ Dial | 0-200 PSI/BAR
Product Description
The TL45-P200 is part of the high-visibility Weiss Trade Line (TL) series. The “TL45” designation identifies this as a 4.5-inch (115 mm) Dial gauge, providing a significantly larger viewing area than standard utility gauges. This is essential for large mechanical rooms in Dubai and Abu Dhabi where gauges are often mounted high up on headers and must be read accurately from floor level.
This model features a pressure range of 0 to 200 PSI (0 to 14 BAR). This specific range is the industry standard for High-Rise Domestic Water Systems and Chilled Water (CHW) supply lines, as it provides high resolution for systems operating between 100 and 160 PSI. The gauge is housed in a rugged black-finished drawn steel case with a clear, impact-resistant polycarbonate window.
Key Features
- Oversized 4.5″ High-Visibility Dial: Features a clean white face with bold black graduations, allowing for precise pressure monitoring from a distance.
- Dual Scale (PSI/BAR): Displays pressure in both imperial (PSI) and metric (BAR) units, complying with international engineering standards and UAE project specifications.
- Precision Bronze Internals: Equipped with a heavy-duty phosphor bronze Bourdon tube and a precision brass movement for consistent accuracy and smooth pointer action.
- Durable Construction: The black steel case and friction-fit polycarbonate window provide excellent protection against mechanical shock, dust, and debris.
- Standard Connection: Features a 1/4″ NPT brass socket, making it compatible with most standard industrial piping, manifolds, and valve sets.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | TL45-P200-4L (Standard Lower Mount) |
| Dial Size | 4.5″ (115 mm) |
| Range | 0 – 200 PSI / 0 – 14 BAR |
| Mounting Type | Stem Mount (Direct) |
| Connection Location | Lower Mount (Bottom) |
| Connection Size | 1/4″ NPT |
| Case Material | Black Finished Drawn Steel |
| Internal Material | Bronze Tube / Brass Socket |
| Accuracy | ASME B40.100 Grade B (**±**2%) |
Frequently Asked Questions
- Q: Why choose the 4.5″ dial over a 2.5″ dial?
- A: In large plant rooms, smaller gauges are difficult to read safely. The 4.5″ dial ensures that the operating pressure is visible from across the room, which is often a safety requirement in UAE district cooling plants.
- Q: Can this be used for steam service?
- A: For steam, it is mandatory to use this gauge with a coil-type siphon (pigtail) to prevent high-temperature steam from damaging the internal bronze Bourdon tube.
- Q: Is this gauge liquid-filled?
- A: No, the TL45 is a “dry” gauge. For applications with heavy vibration (e.g., near a reciprocating pump), consider the Weiss LF series (liquid-filled) to prevent pointer flutter.