Product details
Weiss Liquid Filled Gauge | LF44GY1 | 4″ Dial | 0-200 PSI/KPA
Product Description
The LF44GY1 is designed to provide stable and accurate readings in environments where standard dry gauges would suffer from “pointer flutter” or internal wear. The gauge is Glycerin Filled, which acts as a permanent lubricant and dampener for the internal movement. This feature is essential for equipment in Dubai and Abu Dhabi that operates with rapid pulsations, such as reciprocating pumps or heavy industrial compressors.
Equipped with a 4-inch (100 mm) dial and a dual-scale range of 0-200 PSI (0-1400 KPA), the LF44GY1 offers excellent visibility for operators. The case is constructed from 304 Stainless Steel with a crimped bezel, ensuring a hermetic seal that prevents internal fogging and protects against the humid, corrosive air of the Middle East. Its 1/4″ NPT Lower (Bottom) Mount connection allows for easy installation on standard process piping.
Key Features
- Liquid Filled Dampening: The glycerin filling absorbs mechanical shocks and vibrations, extending the service life of the gauge and ensuring a steady reading.
- Hermetically Sealed SS Case: The 304 Stainless Steel case is moisture-proof and dust-proof, making it ideal for the high-humidity coastal environments of the UAE.
- High-Visibility 4″ Dial: The large face allows for quick and accurate pressure checks from a distance in busy plant rooms.
- Dual Scale Readout: Simultaneously displays pressure in PSI and KPA, satisfying international engineering requirements.
- Safety Features: Includes a blow-out plug at the top of the case to allow for internal pressure relief during extreme temperature changes.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | LF44GY1 |
| Dial Size | 4″ (100 mm) |
| Range | 0 – 200 PSI / 0 – 1400 KPA |
| Filling | Glycerin (Standard) |
| Connection Location | Lower Mount (Bottom) |
| Connection Size | 1/4″ NPT |
| Case Material | 304 Stainless Steel |
| Internal Material | Copper Alloy / Brass |
| Accuracy | $\pm$
1.0% of Full Scale (ASME B40.100 Grade 1A) |
Frequently Asked Questions
- Q: Why is the dial 4″ instead of 2.5″?
- A: The 4″ dial is an industrial standard that provides better resolution and is much easier to read in large mechanical rooms where gauges might be mounted several feet away from the operator.
- Q: Is the glycerin safe if the gauge leaks?
- A: Yes, glycerin is non-toxic and biodegradable. However, if a leak occurs, the gauge should be replaced to maintain its vibration-dampening properties.
- Q: Can this be used for outdoor pump sets?
- A: The stainless steel case and liquid filling make it exceptionally resistant to the UAE’s outdoor elements and direct sunlight.




