A.y. Mcdonald 5421-112 Gate Valve 2.5 in Fpt Lead Free

Product Description

The A.Y. McDonald 5421-112 is a 2.5-inch female pipe thread (FPT) gate valve rated at 125 cold working pressure (CWP). Built to lead-free standards, this valve is suited for potable water systems where material compliance is required. Gate valves in this class provide full-bore flow when open and positive shutoff when closed, making them a standard choice for isolation service. At 6.67 pounds, the 5421-112 is a substantial valve appropriate for commercial and residential plumbing main lines and distribution headers. Licensed plumbers and pipefitters are the primary installers for this type of valve.

This gate valve is designed for water service applications requiring a lead-free-compliant isolation valve at a 2.5-inch pipe size. Typical installations include main water line shutoffs, branch isolation points, and mechanical room distribution headers in both residential and light commercial settings. The FPT connections on both ends allow direct threaded assembly to standard NPT pipe or fittings. The 125 CWP rating covers typical municipal water service pressures found in most residential and commercial plumbing systems.

Key Features

• Lead-free construction meets potable water compliance requirements
• 2.5-inch FPT (female pipe thread) connections on both ends for standard NPT assembly
• 125 CWP rating suitable for standard water service pressure ranges
• Full-bore gate design minimizes flow restriction when fully open
• Positive shutoff for isolation service on water mains and branch lines

Compatibility

Designed as an OEM-style replacement or new-installation gate valve for 2.5-inch NPT threaded water service piping systems requiring lead-free-compliant components.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before removing or installing any valve. Apply thread sealant or PTFE tape to male threads before assembly and tighten to a firm, leak-free connection without over-torquing. After installation, open the valve slowly and inspect all joints for leaks before returning the system to service.

Technical Specifications

• Size: 2.5 inches
• Connection Type: FPT (Female Pipe Thread)
• Pressure Rating: 125 CWP
• Lead Free: Yes
• Weight: 6.67 pounds

Standard Information

• Brand: A.Y. McDonald
• Manufacturer Part Number: 5421-112