Watts Series ET-RA ASME Pressurized Expansion Tanks for Heating and Cooling Systems
Series ET-RA tanks are ASME removable bladder type precharged expansion tanks. They are designed to absorb the expansion forces and control the pressure in heating and cooling systems. The water is contained in the heavy duty bladder, preventing tank corrosion and waterlogging problems.
Features:
• ASME Section VIII Code Construction
• Removable butyl bladder
• Precharged to 12psi (83 kPa) (Field Adjustable)
• Shell: Carbon steel
• Bladder: Heavy duty butyl
• Primer coated exterior
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