Product details
Weiss Compound Pressure Gauge | TL35-V30 | 3.5″ Dial | 30″Hg to 30 PSI/BAR
Product Description
The TL35-V30 is engineered for general service conditions where monitoring vacuum levels and low positive pressures is critical. The “TL35” designation identifies this as a 3.5-inch (90 mm) Dial gauge, offering a larger, more legible face than standard 2-inch utility gauges. The “V30” indicates a Compound Range of 30″Hg Vacuum to 30 PSI Pressure.
Commonly used in pump suction lines, refrigeration manifolds, and air handling systems in Dubai and Abu Dhabi, this gauge allows operators to monitor for suction-side blockages (vacuum) or discharge pressure within a single instrument. Housed in a durable black-finished drawn steel case with a push-in polycarbonate window, it is built to withstand the rigors of mechanical plant rooms.
Key Features
- Dual Functionality: Measures both vacuum (30″Hg) and positive pressure (30 PSI/2 BAR) on a single, easy-to-read dial.
- Large 3.5″ High-Visibility Dial: Features high-contrast black and red graduations on a white background, ensuring accuracy even from a distance.
- Precision Movement: All-brass construction with a precision gear and pinion system ensures consistent, long-term accuracy.
- Dual Scale (PSI/BAR): Displays pressure in both imperial and metric units, satisfying the requirements of international project standards in the UAE.
- Durable Construction: Built with a bronze Bourdon tube and a brass socket for reliable performance with air, oil, water, or gas.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | TL35-V30-4L (Standard Lower Mount) |
| Dial Size | 3.5″ (90 mm) |
| Range | 30″Hg Vac to 30 PSI / 2 BAR |
| Mounting Type | Stem Mount (Direct) |
| Connection Location | Lower Mount (Bottom) or Center Back |
| Connection Size | 1/4″ NPT |
| Case Material | Black Finished Drawn Steel |
| Internal Material | Bronze Tube / Brass Socket |
| Accuracy | ASME B40.100 Grade B ($\pm$2%) |
Frequently Asked Questions
- Q: When should I use a compound gauge instead of a standard pressure gauge?
- A: Use a compound gauge like the TL35-V30 on the suction side of pumps or in refrigeration systems where the pressure can drop below atmospheric levels (vacuum).
- Q: Can this be used for steam?
- A: It is not recommended for direct steam contact. If used on a steam system, it must be protected by a coil-type siphon to prevent high-temperature damage to the internal bronze tube.
- Q: Is the window shatterproof?
- A: Yes, the gauge features a push-in polycarbonate window which is highly impact-resistant compared to traditional glass.