Brass Anti-thief Straight Ball Valve with Swivel Nut NR-L057

Spec of Brass straight Lockable Ball Valve

Product Overview: Anti-Thief Brass Valve with Swivel Nut for Water Meter Integration

The Brass Anti-Thief Straight Ball Valve (Model: NR-L057) from Raising is a specialized fluid control device designed to prevent tampering while simplifying water meter connections. Its standout features—anti-thief lockable handle and swivel nut—address two critical user needs: security and ease of installation. Made from durable brass alloys (CW617N, HPB59-1, DZR CW602N, lead-free C46500/CW511L), the valve resists corrosion and ensures long-term reliability. It operates at 16 bar working pressure and -20°C to 120°C, handling water and non-corrosive liquids. With a fixed size of DN15 (3/4" x 3/4") and BSP/NPT threads, it is specifically tailored for water meter setups, with one end featuring a swivel nut for direct attachment to meters and the other end as a male thread for piping connections. Compliant with EN12165, EN13828, and BS21, this valve is a top choice for residential, commercial, and municipal water systems where anti-tampering and quick installation are priorities.

Product Features: Anti-Thief Design & Water Meter Compatibility

Anti-Thief Lockable Handle (Professional Tool Required)

The valve’s handle locks securely, and only a professional tool can unlock it—eliminating unauthorized access or tampering. This is critical for water meter systems, as it prevents theft of water or manipulation of meter readings, protecting both utility companies and property owners.

Swivel Nut for Tool-Free Water Meter Connection

One end of the valve features a swivel nut that attaches directly to water meters without additional adapters. This design speeds up installation, reduces the risk of leaks from mismatched parts, and ensures a tight seal between the valve and meter.

Compression Fitting for Leak-Proof Performance

The valve uses compression fitting technology to create a leak-free seal with piping. This eliminates the need for thread seal tape or sealants, simplifying installation and ensuring long-term reliability even under pressure.

PE Pipe Compatibility for Versatile Use

Engineered to work seamlessly with PE (polyethylene) pipes—common in modern plumbing and water meter systems—the NR-L057 integrates into both new installations and retrofits without compatibility issues.

Heavy-Duty Brass Build for Durability

Constructed via forging + machining, the brass body resists rust, corrosion, and physical damage. It withstands outdoor elements and frequent use, making it suitable for both indoor and outdoor water meter setups.

Applications: Tailored for Water Meter Systems

Residential Water Meter Installations

• Home Plumbing: Connects water meters to residential main lines, preventing tampering with water supply and ensuring accurate meter readings. Ideal for single-family homes, apartments, and townhouses.

• Rental Properties: Enables landlords to secure water access, ensuring tenants cannot bypass the meter to avoid charges.

Commercial & Municipal Water Systems

• Commercial Buildings: Used in offices, retail stores, and hotels to connect water meters to building plumbing, preventing unauthorized water use and reducing utility costs.

• Municipal Water Meters: Integrated into neighborhood or street-level water meter setups, helping municipal authorities maintain control over public water supply and reduce water theft.

PE Pipe-Based Plumbing Projects

• New Construction: Specified in projects using PE pipes (e.g., suburban housing developments) for its seamless compatibility and easy installation.

• Plumbing Retrofits: Replaces old, non-secure valves in PE pipe systems to add anti-thief protection without requiring full pipe replacement.

FAQ: Addressing User Concerns

What tool is needed to unlock the valve?

The NR-L057 requires a Raising-specific professional tool (available for purchase separately) to unlock. This ensures only authorized personnel (e.g., plumbers, utility workers) can adjust the valve.

Can the swivel nut fit all standard water meters?

The swivel nut is designed for DN15 (3/4") water meters, which are the most common size for residential and light commercial use. For non-standard meters, contact our team for custom adapter options.

Is the valve suitable for cold and hot water systems?

Yes. It operates reliably between -20°C and 120°C, making it compatible with both cold water (e.g., drinking water lines) and hot water systems (e.g., residential hot water meters).

Does the compression fitting require maintenance over time?

No. The compression fitting creates a permanent, leak-free seal once installed. Routine inspections (e.g., checking for visible leaks) are recommended, but no regular maintenance is needed for the fitting itself.