The Sapsons 'AF-3' / S-114 Flare Type Boiler Tube Expanders are specialized mechanical tube expanders designed for parallel expansion and flaring of boiler tubes in a single operation. They are widely used during the manufacturing, repair, and maintenance of boilers to produce strong, leak-tight tube-to-tube sheet joints.
Description
The AF-3 / S-114 Series incorporates three parallel expanding rolls and three flare rolls, enabling the tool to simultaneously expand the tube inside the tube sheet while forming a flare at the tube end. This dual-action design provides a uniform mechanical joint with improved tube retention and sealing performance.
Features :
• Simultaneous parallel tube expansion and end flaring.
• Three expanding rolls and three flare rolls ensure even expansion and consistent flaring.
• Suitable for boiler tube sizes from 7/8 in. OD to 4½ in. OD.
• Available with Drum, Header, and Short Series mandrels to suit different boiler configurations and restricted-access applications.
• Rugged, precision-machined construction for long service life.
• Produces strong, leak-proof tube joints while minimizing tube wall damage.
• Compatible with pneumatic or electric tube rolling drives.
Applications :
The AF-3 / S-114 expanders are commonly used for:
• Fire-tube boilers
• Water-tube boilers
• Steam drum and mud drum tube expansion
• Economizers
• Air heaters
• Boiler retubing and maintenance
• New boiler fabrication
Advantages :
• Performs expansion and flaring in a single operation, reducing installation time.
• Creates a uniform mechanical seal for improved leak resistance.
• Reduces the need for secondary flaring operations.
• Suitable for maintenance work where reliable tube retention is essential.
• Designed for high durability and repeatable performance.
The Sapsons AF-3 / S-114 Flare Type Boiler Tube Expander is a precision tool designed to simultaneously expand and flare boiler tubes in a single operation. Equipped with three parallel expanding rolls and three flare rolls, it produces strong, leak-tight tube-to-tube sheet joints with uniform expansion. The expander is suitable for a wide range of boiler tube sizes and is commonly used in the fabrication, repair, and maintenance of fire-tube and water-tube boilers, economizers, and heat exchangers. Its one-step operation improves efficiency, ensures reliable tube retention, and reduces installation time while maintaining high joint quality.
Description
The AF-3 / S-114 Series incorporates three parallel expanding rolls and three flare rolls, enabling the tool to simultaneously expand the tube inside the tube sheet while forming a flare at the tube end. This dual-action design provides a uniform mechanical joint with improved tube retention and sealing performance.
Features :
• Simultaneous parallel tube expansion and end flaring.
• Three expanding rolls and three flare rolls ensure even expansion and consistent flaring.
• Suitable for boiler tube sizes from 7/8 in. OD to 4½ in. OD.
• Available with Drum, Header, and Short Series mandrels to suit different boiler configurations and restricted-access applications.
• Rugged, precision-machined construction for long service life.
• Produces strong, leak-proof tube joints while minimizing tube wall damage.
• Compatible with pneumatic or electric tube rolling drives.
Applications :
The AF-3 / S-114 expanders are commonly used for:
• Fire-tube boilers
• Water-tube boilers
• Steam drum and mud drum tube expansion
• Economizers
• Air heaters
• Boiler retubing and maintenance
• New boiler fabrication
Advantages :
• Performs expansion and flaring in a single operation, reducing installation time.
• Creates a uniform mechanical seal for improved leak resistance.
• Reduces the need for secondary flaring operations.
• Suitable for maintenance work where reliable tube retention is essential.
• Designed for high durability and repeatable performance.
The Sapsons AF-3 / S-114 Flare Type Boiler Tube Expander is a precision tool designed to simultaneously expand and flare boiler tubes in a single operation. Equipped with three parallel expanding rolls and three flare rolls, it produces strong, leak-tight tube-to-tube sheet joints with uniform expansion. The expander is suitable for a wide range of boiler tube sizes and is commonly used in the fabrication, repair, and maintenance of fire-tube and water-tube boilers, economizers, and heat exchangers. Its one-step operation improves efficiency, ensures reliable tube retention, and reduces installation time while maintaining high joint quality.
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