SAPSONS Hydraulic Tube Expansion Systems use controlled hydraulic pressure to expand tubes radially, ensuring a tight, leak-proof, and mechanically strong joint between the tube and tube sheet—without welding or adhesives.
These systems are widely used in industries such as:
• Power generation
• Oil & gas
• Petrochemicals
• HVAC and refrigeration systems
Key Features :
• High precision expansion for consistent joint quality
• Leak-proof sealing ensuring long-term reliability
• Hydraulic pressure control for uniform force application
• Suitable for various tube materials (including stainless steel and thick-walled tubes)
• Durable construction for long service life
• Reduced stress on tube material, minimizing damage during expansion
Components (Typical Sapsons System) :
• Hydraulic power pack (pressure generation unit)
• Expansion tool / expander head
• Hoses and connectors
• Control system (manual or automatic)
Working Principle :
The system applies high-pressure hydraulic fluid inside the tube, causing it to expand outward and tightly fit into the surrounding tube sheet. This ensures:
1. The hydraulic expander is inserted into the tube.
2. Pressurized hydraulic fluid activates the expansion mechanism.
3. The tube expands outward into the tube sheet hole.
4. A permanent, tight (Strong) mechanical bond is formed.
5. Elimination of gaps or leakage paths
Advantages :
• Eliminates need for welding
• Reduces risk of tube damage
• Ensures uniform expansion across all tubes
• Improves efficiency and reduces rework
• Ideal for critical applications requiring leak-proof joints
Typical Applications :
• Heat exchangers
• Condensers
• Boilers
• Chillers
• Oil coolers
Key Points
• Function: Expands tubes radially for secure tube-to-tube sheet connections
• Working Method: Uses controlled hydraulic pressure for uniform expansion
• Result: Strong, leak-proof mechanical joints
• Advantages: High precision, reduced material stress, and consistent performance
• Applications: Heat exchangers, boilers, condensers, HVAC systems, and petrochemical industries
In One Line,
A precision hydraulic system that ensures reliable, leak-free tube expansion for critical industrial equipment.
