Hinged Non-Welded Bow Spring Centralizer
COS Hinged Non-Welded Bow Spring Centralizers are designed to deliver high restoring force with minimal starting and running forces, ensuring reliable casing centralization in vertical, deviated, and horizontal wells. The hinged, non-welded design makes them easy to assemble, cost-effective to ship, and highly adaptable to various hole sizes.
Key Benefits
- Ensures optimal casing standoff for better cementing quality
- Low running force for smooth casing movement through restrictions
- Hinged, self-locking design → easy installation & reduced rig time
- Shipped half-assembled for cost savings in transport and storage
- Corrosion-protected with iron phosphate + polyester powder coating
- Manufactured with high-strength double rolled alloy steel for long service life
Features
- API 10D certified – engineered and tested to exceed industry standards
- Premium quality bow springs with uniform hardness & spring action
- Extended bow profiles prevent contact with casing collars
- End collars with self-locking mechanism for secure grip
- Configurable with five standard bow sizes to suit various hole diameters
- Available in 2 7/8” to 30” (special sizes on request)
Applications
- Vertical, deviated, and horizontal wells requiring efficient centralization
- Cementing jobs in challenging or restricted wellbore conditions
- Operations where low running forces and high restoring forces are essential
