Brochure

Hydronic Expansion Tanks
Amtrol hydronic expansion tanks are for use in closed, non-potable hydronic heating and chilled water systems.
Available in diaphragm, full acceptance and partial acceptance bladder designs, all Extrol expansion tanks are
made in the USA at our ISO 9001: 2015 certified facility. ASME tanks meet all Section VIII, Division I standards.
AX Series
Diaphragm Models
Head & Shell Design
AX-15(V) through AX-280(V)
• Industry’s thickest diaphragm.
• Horizontal and vertical models are
available with optional restraints.
• Factory pre-charge: 12 psig.
• Maximum operating temperature: 240° F.
L Series
Full Acceptance Models
200-L through 15000L
• Replaceable, full acceptance bladder design.
• Industry’s thickest heavy duty butyl bladder.
• Free-standing on integral, welded ring base.
• Factory pre-charge: 12 psig.
• Maximum operating temperature: 240° F.
LBC Series
Partial Acceptance Models
35-LBC through 600-LBC
• Replaceable, partial acceptance bladder design.
• Industry’s thickest heavy duty butyl bladder.
• Free-standing on integral, welded ring base.
• Factory pre-charge: 12 psig.
• Maximum operating temperature: 240° F.