Product details
Weiss Gauge Cock | BLC12 | 1/2″ NPT | Brass
Product Description
The BLC12 is a primary isolation accessory for mechanical plant rooms. The “BLC” designation identifies this as a Brass Lever Cock, and the “12” denotes the 1/2″ NPT connection size, which is commonly used for larger gauges or on main headers where a more robust physical connection is required.
In the UAE’s industrial and mechanical sectors, the BLC12 is used extensively in chilled water headers, fire pump skids, and large-scale domestic water systems. It utilizes a simple internal plug mechanism that opens or closes with a quick 90-degree turn of the lever. This allows maintenance teams in Dubai and Abu Dhabi to safely isolate a gauge for calibration or replacement without needing complex tools or shutting down entire sections of the building’s water supply.
Key Features
- Quick-Action Lever: The manual lever handle provides an immediate visual confirmation of the valve status (Open vs. Closed), enhancing operational safety.
- Corrosion-Resistant Brass Construction: Durable and reliable in freshwater, chilled water, and compressed air environments, ensuring long-term performance in the UAE climate.
- 1/2″ NPT Industrial Connection: Features a robust Female-to-Female thread configuration, making it ideal for heavy-duty piping and large-dial industrial gauges.
- Streamlined Design: Compact enough for installation in dense piping manifolds while maintaining the structural strength needed for main line service.
- High Reliability: Simple mechanical design with fewer moving parts, reducing the risk of failure in critical monitoring applications.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | BLC12 |
| Material | Brass |
| Connection Size | 1/2″ NPT (Female x Female) |
| Pressure Rating | Up to 200 PSI |
| Max Temperature | 200°F (93°C) |
| Handle Type | Lever Handle |
| Application | Main Header HVAC / Industrial Plumbing / Air Lines |
Export to Sheets
Frequently Asked Questions
- Q: Why use a 1/2″ Gauge Cock (BLC12) instead of a 1/4″ version?
- A: The 1/2″ size is required for larger gauges (typically 4.5″ or 6″ dials) and offers a more secure mount on vibration-prone main pump headers.
- Q: Is this suitable for high-pressure booster systems?
- A: The BLC12 is rated for up to 200 PSI. If your booster system operates at higher pressures (e.g., in high-rise towers in Dubai), a 1/2″ Needle Valve (50NVBR) is the safer and more appropriate choice.
- Q: Can this be used for steam?
- A: It is rated for temperatures up to 200°F. For low-pressure steam heating, it is acceptable,