Product details
Weiss HVAC Pressure Gauge | 4CTA1/200 | 4.5″ Dial | 0-200 PSI/KPA
Product Description
The 4CTA1/200 is part of the specialized Weiss CTA series, engineered for high-visibility and ease of installation on walls or equipment panels. The “4CTA1” designation identifies this as a 4.5-inch (115 mm) gauge with a Lower (Bottom) Mount connection and a Back Flange. The back flange allows the gauge to be securely screwed onto a flat surface, making it ideal for centralized monitoring stations in Dubai and Abu Dhabi plant rooms.
This model features a dual-scale dial displaying 0-200 PSI and 0-1400 KPA. The 200 PSI range is highly versatile in the UAE market, perfectly suited for monitoring primary chilled water loops, high-rise water distribution, and medium-pressure industrial compressed air. Its durable black-painted aluminum case provides a professional appearance while maintaining high mechanical strength.
Key Features
- Integrated Back Flange: Designed for surface mounting on panels or walls, providing a stable and professional installation.
- Large 4.5″ High-Visibility Dial: Features an oversized face with bold, lithographed black markings on a white background for effortless reading from across a mechanical room.
- Dual Scale (PSI/KPA): Simultaneously displays pressure in imperial and metric units, satisfying the requirements of international consultants and contractors in the Middle East.
- Precision Brass movement: Built with a high-grade phosphor bronze Bourdon tube and a precision brass movement for long-term accuracy and reliability.
- Slotted Adjustable Pointer: Allows for easy field calibration and zero-correction, ensuring the instrument stays accurate over its service life.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | 4CTA1/200 |
| Dial Size | 4.5″ (115 mm) |
| Range | 0 – 200 PSI / 0 – 1400 KPA |
| Mounting Type | Surface Mount (Back Flange) |
| Connection Location | Lower Mount (Bottom) |
| Connection Size | 1/4″ NPT |
| Case Material | Black Painted Aluminum |
| Internal Material | Bronze Tube / Brass Socket |
| Accuracy | $\pm$
1% of Span (ASME B40.100 Grade 1A) |
Frequently Asked Questions
- Q: Is this gauge suitable for hot water systems?
- A: Yes, the brass internals are compatible with hot water. However, if temperatures exceed 65°C, a cooling siphon or capillary tube should be used to protect the gauge movement.
- Q: Can this be mounted directly on a pipe?
- A: While it can be stem-mounted via the 1/4″ NPT connection, the back flange is specifically intended for surface mounting to a wall or panel for better stability.
- Q: Is the window glass or plastic?
- A: Most Weiss CTA series gauges feature a clear, impact-resistant Lexan or Acrylic window, which is safer than glass in industrial environments.
