Mueller Industries 19066 Bronze Gate Valve 3/8 in Fnpt

Product Description

The MUELLER INDUSTRIES 19066 is a bronze gate valve designed for plumbing systems requiring reliable full-bore shutoff. The solid wedge disc provides a positive seal in both directions, making it well suited for isolation service on water supply lines. Rated at 200 WOG (Water, Oil, Gas) and 125 WSP (Working Steam Pressure), this valve handles the pressure demands common in residential and light commercial plumbing installations. The 3/8 inch FNPT x FNPT end connections thread directly onto standard male-threaded pipe without adapters. Licensed plumbers and pipefitters are the typical installers for this type of fitting.

This gate valve is intended for plumbing applications where a straight-through flow path and low pressure drop are required. The 3/8 inch pipe size suits branch lines, fixture supply connections, and similar small-diameter runs. Its bronze body resists corrosion in potable water and general fluid service environments, making it a practical choice for residential, commercial, and light industrial plumbing work.

Key Features

• Solid wedge disc design provides reliable full-bore shutoff
• Bronze body construction for corrosion resistance in water and fluid service
• 200 WOG pressure rating suitable for general plumbing service
• 125 WSP rating supports steam applications within range
• 3/8 inch FNPT x FNPT connections for direct thread-on installation

Compatibility

Designed as an OEM-style replacement or new-installation gate valve for 3/8 inch FNPT threaded plumbing systems in residential and commercial applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the IPC. Shut off the water supply and relieve system pressure before removing or installing any valve. Use thread sealant tape or pipe dope rated for the service fluid on all FNPT connections. Do not over-tighten threaded connections, as bronze fittings can be damaged by excessive torque applied with power tools.