Product details
Weiss Pressure Gauge | TL35-P100 | 3.5″ Dial | 0-100 PSI/BAR
Product Description
The TL35-P100 is part of the versatile Weiss Trade Line (TL) series. The “TL35” designation identifies this as a 3.5-inch (90 mm) Dial gauge. This mid-size format is highly popular in Dubai and Abu Dhabi for equipment skids and pump sets where a 2.5″ dial is too small to read clearly, but a 4.5″ dial is too bulky for the available space.
This model features a pressure range of 0 to 100 PSI (0 to 7 BAR), which is the most common range for Chilled Water (CHW) return lines and low-pressure water supply systems. The gauge is built with a rugged black-finished steel case and an impact-resistant window, ensuring it can handle the mechanical demands of a busy plant room.
Key Features
- Mid-Size 3.5″ High-Contrast Dial: Offers a perfect balance of space-saving design and high legibility, featuring a white face with bold black and red markings.
- Dual Scale (PSI/BAR): Displays pressure in both imperial (PSI) and metric (BAR) units, ensuring compliance with international project specifications in the Middle East.
- Precision Bronze Internals: Equipped with a high-quality phosphor bronze Bourdon tube and a brass movement for consistent accuracy and smooth needle travel.
- Durable Steel Construction: The black-painted steel case provides excellent protection against external impacts and environmental dust.
- Standard Lower Mount: Features a 1/4″ NPT brass connection at the bottom, making it compatible with most standard pipe fittings and gauge cocks.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | TL35-P100-4L (Standard Lower Mount) |
| Dial Size | 3.5″ (90 mm) |
| Range | 0 – 100 PSI / 0 – 7 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 a 3.5″ dial instead of a 4″ or 4.5″ dial?
- A: The 3.5″ dial is often preferred by OEM equipment manufacturers because it fits better into compact control panels while still providing enough surface area to read the pressure accurately from a moderate distance.
- Q: Is this gauge suitable for chilled water?
- A: Yes, the 100 PSI range is ideal for chilled water systems. However, if there is significant pump vibration, we recommend the Weiss LF series (liquid-filled) to protect the needle.
- Q: Does this gauge require a thermowell?
- A: No, pressure gauges do not use thermowells. They are mounted directly to the pipe or through a gauge cock/needle valve for easy isolation.