Zilmet ZFT-U Flat tank union 1/2"

The Zilmet ZFT-U Flat Tank Union 1/2 inch is a flat tank union for hydronic pressure systems and non-potable applications, compatible with ZFT series expansion tanks. Buyers can find additional product information about its 1/2 inch union connection, 1/2" NPT compatibility, and system specifications on this page to confirm fit before installation or replacement.

The Zilmet ZFT-U Flat Tank Union 1/2" is a vital component for homeowners, contractors, and service professionals working on wall hung condensing boilers and similar hydronic systems where reliable expansion tank connections matter. This overview focuses on its compatibility, connection details, reliability, material durability, and installation considerations so you can judge whether it fits your system, especially in tight mechanical spaces where long-term performance and easy integration are critical. Its carbon steel shell and stainless steel connection support durable, dependable service in hydronic pressure systems while helping buyers assess fit, servicing, and replacement needs.

Product Specifications

• Connection Size: 1/2 Inch

• Connection Type: Union

• Application: Hydronic pressure systems

• Water Type: Non-potable only

• Resin Included: AquaScience 8% Crosslink Resin

Key Features

• 1/2" union connection for system integration to help connect components in the system

• Designed for hydronic pressure systems

• Features a two-way check valve for easy servicing

• Allows isolation of the expansion tank without draining the system

• Dual-check valve supports dry-disconnect servicing of the expansion tank

• Suitable for non-potable applications

• Includes AquaScience 8% Crosslink Resin

• Durable construction with a welded mounting bracket; the compact design suits tight installations in the mechanical room, provides easier access, and creates a more professional look

• Compatible with systems requiring a 1/2-inch union connection and ideal to pair with a wall hung condensing boiler setup