Gauge Cock, Brass, 1/2″ NPT LC12 Weiss

The Weiss LC12 is a traditional lever-handle isolation valve specifically designed for use with pressure gauges in low-to-medium pressure systems. Constructed from durable brass with a 1/2″ NPT connection, it provides a simple and effective way to isolate gauges for inspection or replacement in HVAC and plumbing applications across the UAE.

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Product details

Weiss Gauge Cock | LC12 | 1/2″ NPT | Brass

Product Description

The LC12 is a robust “Gauge Cock” used primarily in commercial mechanical rooms. The “LC” identifies this as a Lever Handle type, while the “12” denotes the 1/2″ NPT connection size.

In the UAE’s mechanical sector, 1/2″ gauge cocks are used on larger piping headers and industrial equipment where a 1/2″ connection is standard. It features a simple internal plug design that is operated by a 90-degree turn of the lever. This allows maintenance teams in Dubai and Abu Dhabi to quickly shut off the pressure to a gauge without needing tools, facilitating easy instrument maintenance. Its brass construction offers good corrosion resistance in standard water and air service.

Key Features

  • Simple Lever Operation: The manual lever provides a clear visual indication of the valve position (Open/Closed) and allows for quick isolation.
  • Durable Brass Body: Provides reliable service in chilled water, hot water, and air systems common in Middle Eastern infrastructure.
  • 1/2″ NPT Industrial Connection: A larger, heavy-duty thread size (Female x Female) suitable for main piping branch lines and industrial gauges.
  • Compact Design: Fits easily into tight piping manifolds where space for a larger ball valve or gate valve is unavailable.
  • Economic Isolation: Offers a cost-effective solution for isolating gauges compared to high-pressure needle valves.

Technical Specifications

Specification Details
Brand Weiss Instruments
Model LC12
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 Low-Pressure HVAC / Plumbing / Air Lines

Frequently Asked Questions

  • Q: When should I use the LC12 instead of a Needle Valve (50NVBR)?
    • A: The LC12 is for low-pressure systems (up to 200 PSI) where a quick on/off function is needed. For high-pressure systems (above 200 PSI) or where you need to “bleed” the pressure in slowly, a needle valve is mandatory.
  • Q: Can this be used for steam?
    • A: It is rated for 200°F, so it is only suitable for very low-pressure steam or hot water heating. For high-pressure steam service, a dedicated steam-rated gauge cock or syphon-needle valve combo is required.
  • Q: Is this suitable for potable water?
    • A: Brass is standard for UAE water systems, but for drinking water applications, always verify if local regulations require a Lead-Free (LF) certified model.

 

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