Xylem-McDonnell & Miller 340000 Stem, Valve Disc & Gasket for 25A Series

Description

Xylem-McDonnell & Miller 340000 – Stem, Valve Disc & Gasket for 25A Series

The Xylem-McDonnell & Miller 340000 is an OEM replacement service kit containing the stem, valve disc, and gasket designed specifically for the 25A Series low water cutoff and pump controllers (Model Number SA25A-15). Engineered to exact factory specifications, this kit restores the internal sealing and flow-control integrity of your McDonnell & Miller 25A Series device, helping to maintain safe, reliable boiler operation.

Key Features

• OEM replacement parts engineered specifically for the 25A Series low water cutoff
• Includes stem, valve disc, and gasket — all critical internal sealing components
• Designed for model SA25A-15 for a precise, drop-in fit
• Restores proper valve function and water-tight sealing performance
• Manufactured to Xylem-McDonnell & Miller quality standards for long-lasting reliability
• Ideal for scheduled maintenance, repair, or emergency service of 25A Series units

Application

The 25A Series by McDonnell & Miller is a widely used low water cutoff and pump controller for steam and hot water boilers in residential and light commercial hydronic heating systems. Replacing worn or damaged internal components — such as the stem, valve disc, and gasket — with genuine OEM parts like the 340000 kit ensures continued safe boiler operation and helps prevent costly low-water damage.

Product Details

• SKU: 340000
• Compatible Series: 25A Series Low Water Cutoff
• Model Compatibility: SA25A-15
• Components Included: Stem, Valve Disc, Gasket
• Brand: Xylem-McDonnell & Miller