Product details
Weiss Gauge Cock | BLC14 | 1/4″ NPT | Brass
Product Description
The BLC14 is a fundamental accessory for mechanical plant rooms. The “BLC” designation identifies this as a Brass Lever Cock, and the “14” denotes the standard 1/4″ NPT connection size, which matches the majority of industrial pressure gauges.
In the UAE’s mechanical sector, the BLC14 is widely used in chilled water branch lines, domestic water pumps, and air handling units. It utilizes a simple internal plug valve mechanism operated by a 90-degree turn of the lever. This design allows technicians in Dubai and Abu Dhabi to quickly shut off fluid flow to a gauge, ensuring that instrument service can be performed without system downtime. Its brass body ensures resistance to corrosion and long-term reliability in non-aggressive fluid environments.
Key Features
- Instant Lever Isolation: The 90-degree lever handle provides a clear visual indication of whether the valve is open or closed, ensuring safe maintenance procedures.
- Corrosion-Resistant Brass: Ideal for freshwater, chilled water, and compressed air systems, maintaining structural integrity in the Middle East’s humid conditions.
- Standard 1/4″ NPT Connection: Features Female-to-Female (or Male-to-Female) threads, making it a universal fit for standard 1/4″ NPT industrial gauges.
- Compact Footprint: Small enough to be installed in tight manifolds, pump skids, and control panels where space is limited.
- Cost-Effective Design: Offers a high-quality yet economical solution for gauge isolation compared to high-pressure needle valves.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | BLC14 |
| Material | Brass |
| Connection Size | 1/4″ NPT (Female x Female) |
| Pressure Rating | Up to 200 PSI |
| Max Temperature | 200°F (93°C) |
| Handle Type | Lever Handle |
| Application | Low-to-Medium Pressure HVAC / Plumbing |
Frequently Asked Questions
- Q: Why use the BLC14 instead of a Needle Valve?
- A: The BLC14 is preferred for systems with pressures below 200 PSI where a quick shut-off is more important than fine throttling. For high-pressure booster systems, the needle valve is generally required for safety.
- Q: Can this valve be used for steam?
- A: It is rated for temperatures up to 200°F, making it suitable for low-pressure steam or hot water heating. For high-pressure steam, a dedicated steam-rated gauge cock or a syphon/needle valve combination is necessary.
- Q: Is this suitable for potable water?
- A: Yes, brass is a standard material for water systems in the UAE. However, always check if the project specifications require a Lead-Free (LF) certified model for drinking water lines.





