Watts AS-B-T 1 1/4 Expansion Tank, Bronze, NPT

The Watts AS-B-T 1 1/4 is a 1-1/4" bronze expansion tank. It features a bronze body. Rated to 125 psi.

This 1 1/4" bronze air separator is used in commercial and residential, hydronic heating applications to separate air from water in the piping system. It consists of a bronze body construction with threaded connection, tapings for a boiler-fill expansion tank, a 1/2" FV4-M1 float vent, and a 1/2" brass pipe plug. It provides continuous purging and venting of air in the system when installed with Watts Series FV4-M1 float vent. Horizontal mount only. It is ideal for use in radiant heat systems. Maximum pressure is 125 psi (8.6 bar).

Features

• Bronze construction
• Comes standard with tappings
• Provides complete, continuous purging and venting of air
• Ideal for radiant heat systems

Common Questions

What is it designed for?

It is intended for hydronic heating service.

Specifications

• Size: 1-1/4"
• Inlet Size: 1-1/4"
• Outlet Size: 1-1/4"
• Connection: NPT
• Body Material: Bronze
• Max Pressure (psi): 125
• Application: Hydronic Heating
• Pack Quantity: 10
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: AS-B-T 1 1/4
• Lead-Free: No
• Component Role: Expansion Tank