Nibco njb83hnb 1-1/4 in Dzr Silicon Bronze Ball Valve 600 Psi

Product Description

The NIBCO njb83hnb is a full port, two-piece silicon bronze ball valve designed for sweat (solder) end connections in potable water and hydronic plumbing systems. Built to a 600 psi non-shock cold working pressure rating with a maximum temperature of 300 degrees F, this valve delivers reliable shutoff in demanding residential and light commercial installations. The dezincification-resistant (DZR) body material resists corrosion in aggressive water conditions. A reinforced PTFE seat provides a tight seal across the full range of service temperatures. The blowout-proof stem adds a critical safety feature for high-cycle applications. Lead Law compliant and NSF 61-8 and NSF 372 certified, this valve meets current potable water installation requirements.

The njb83hnb is suited for copper-pipe potable water distribution, heating, and cooling systems where a full-bore shutoff is required. The sweat connection on both ends makes it a direct fit into standard copper line sets. Full port design minimizes pressure drop across the valve, which matters in systems with flow-rate-sensitive equipment such as boilers, chillers, or domestic water heaters. The NIB-SEAL handle is standard; optional accessories including a locking lever, memory stop, extended lever, and round or wing handle configurations are available from NIBCO for this valve series.

Key Features

• DZR silicon bronze body resists dezincification in aggressive or chlorinated water supplies
• Full port opening minimizes flow restriction and pressure drop
• Blowout-proof stem construction for safe operation under pressure
• Vented ball design prevents pressure buildup in the closed position
• Reinforced PTFE seat for durable, low-torque sealing
• NSF 61-8 and NSF 372 certified; Lead Law compliant for potable water use
• Meets ANSI 61-8, ANSI 372, and MSS SP-110 standards

Compatibility

Designed as an OEM-style replacement or new-installation ball valve for 1-1/4 inch copper sweat systems. Part of the NIBCO S-585-66-LF collection. Compatible accessories include NIB-SEAL handle, locking lever, memory stop, extended lever, and round or wing handle options available through NIBCO.

Installation Notes

Installation should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the water supply and depressurize the line before soldering; the valve body should be in the open position and the internal components protected from heat during sweat assembly. Do not exceed the rated 600 psi non-shock cold working pressure or 300 degrees F maximum temperature. IAPMO listed; verify local inspection requirements before installation in potable water systems.

Technical Specifications

• Valve Size: 1-1/4 in
• Maximum Pressure: 600 psi non-shock cold working pressure
• Pressure Class: 600#
• Maximum Temperature: 300 degrees F
• Body Material: DZR Silicon Bronze
• Seat Material: Reinforced PTFE
• End Connections: Sweat (both ends)
• Port: Full Port
• Valve Body Style: 2-Piece
• Valve Operator: NIB-SEAL Handle
• Certifications: NSF 61-8, NSF 372, IAPMO Listed, Lead Law Compliant
• Standards: ANSI 61-8, ANSI 372, MSS SP-110

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: njb83hnb