This 2 inch dielectric union is used in commercial and residential applications to prevent accelerated corrosion and deterioration in the piping system due to galvanic and stray current. It is installed between pipes made from dissimilar metals and is used on applications such as hot water storage tanks, water and air conditioners, processing tanks, steam, gas, and water piping. It consists of a female iron pipe thread to solder connection, union nut, two tailpieces, and a Buna-N gasket that separates the tailpieces to prevent an electric current from occurring. The maximum temperature is rated up to 180 degrees F (82 degrees C) at 250 psi (17.2 bar).

Features & Benefits

• Pressurized Expansion Tanks are Designed to Absorb the Increased Volume of Water Created When Water is Heated
• These Tanks Maintain System Pressure Below the Relief Setting of the Relief Valve
• Pre-Pressurized Steel Tank Features a Durable Expansion Membrane that Prevents Contact of the Water with the Air in the Tank
• Rugged Diaphragm Minimizes Loss of the Air Change and Ensures Long and Trouble-Free Life for the System
• Compatible with Glycol in System

Specifications

• Type: In-Line, Free Standing, Vertical/Horizontal, Pipe Mount
• Inlet/Outlet Connection: 1/2 Inch Male Threaded
• Tank Material: Epoxy Carbon Steel
• Temperature Rating: 220 Deg F
• Pressure Rating: 75 PSI
• Tank Dimensions: 8 Inch Diameter x 12-1/2 Inch Height
• Tank Capacity: 2.1 Gallon
• Diaphragm Type: Butyl Rubber
• Air Charge Type: Factory Precharged
• Air Charge Capacity: 12 PSI
• Application: Commercial and Residential Closed Loop Hydronic Heating System
Color Gray; Bladder Material Butyl; Mounting Type Pipe