Product details
Weiss Pressure Gauge | TL45-P200 | 4.5″ Dial | 0-200 PSI/kPa
Product Description
The TL45-P200 belongs to 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 makes it ideal for installation in large-scale mechanical rooms, high-rise pump rooms, and district cooling plants in Dubai and Abu Dhabi where gauges must be read clearly from a distance.
This model features a pressure range of 0 to 200 PSI (0 to 1400 kPa). This specific range is the industry standard for High-Rise Domestic Water Systems and Chilled Water (CHW) supply lines in tall buildings, 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 across a plant room.
- Dual Scale (PSI/kPa): Displays pressure in both imperial (PSI) and metric (kPa) units, complying with international building 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 – 1400 kPa |
| 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 200 PSI instead of 160 PSI?
- A: For systems where the working pressure is near 120-130 PSI, a 200 PSI gauge is safer. It ensures the pointer stays in the “middle third” of the dial for maximum accuracy and prevents damage from sudden pressure surges.
- 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 high-vibration applications (e.g., directly on a reciprocating pump), consider the Weiss LF series liquid-filled gauges.