Product details
Weiss Pressure Gauge | TL35-P160 | 3.5″ Dial | 0-160 PSI/BAR
Product Description
The TL35-P160 is part of the reliable Weiss Trade Line (TL) series, specifically developed for the HVAC and plumbing markets. The “TL35” designation identifies this as a 3.5-inch (90 mm) Dial gauge. This intermediate size is highly popular in Dubai and Abu Dhabi because it is significantly easier to read than standard 2.5″ gauges while still fitting into compact manifolds where a 4.5″ gauge would be too large.
This model features a pressure range of 0 to 160 PSI (0 to 11 BAR), which is the most common specification for Domestic Water Systems and Chilled Water (CHW) supply lines. The 160 PSI range provides excellent resolution for systems typically operating between 60 and 120 PSI. The gauge is housed in a rugged black-finished steel case with a clear, friction-fit polycarbonate window.
Key Features
- Intermediate 3.5″ High-Contrast Dial: Offers improved visibility over utility gauges, featuring a clean white face with bold black (PSI) and red (BAR) markings for quick identification.
- Dual Scale (PSI/BAR): Displays pressure in both imperial and metric units, ensuring compliance with international project specifications and UAE building codes.
- Precision Bronze Internals: Equipped with a high-quality phosphor bronze Bourdon tube and a precision brass movement for consistent accuracy and long-term reliability.
- Durable Construction: The black-painted steel case provides robust protection against mechanical impact and environmental dust in plant room conditions.
- Standard Connection: Features a 1/4″ NPT brass connection at the bottom, allowing for easy installation into standard piping systems and gauge valve sets.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | TL35-P160-4L (Standard Lower Mount) |
| Dial Size | 3.5″ (90 mm) |
| Range | 0 – 160 PSI / 0 – 11 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 use a 3.5″ dial instead of a 2.5″ dial for chilled water?
- A: In large mechanical rooms, gauges are often installed on overhead pipes. A 3.5″ dial allows maintenance staff to read the system pressure accurately from floor level without needing a ladder.
- Q: Can this be used for nitrogen or air service?
- A: Yes, it is suitable for air, water, oil, and any other non-corrosive media compatible with bronze and brass internals.
- Q: Does this gauge require a siphon?
- A: Only if used for steam service. For standard water or air applications, it can be mounted directly to the pipe or through an isolation needle valve.
