Pipe bending external spring 25 mm by LOGO-Tools, model 2,13

External pipe bending spring by LOGO-Tools, model 2,13, designed for use with 25 mm diameter tubing. The spring is a steel coil that fits inside the tube bore to support the wall during manual bending and to prevent kinking or collapsing of the tube cross-section. It is suitable for copper, aluminium and thin-walled steel tubes used in plumbing, HVAC and DIY repair tasks where maintaining a smooth, consistent bend is required.

Advantages

The bending spring provides internal reinforcement during forming, reducing the risk of wrinkles and sharp folds in the tube. Made from spring steel, it offers resilience and reliable support while remaining easy to insert and remove. Its 25 mm size matches the inner diameter of the intended tubing to ensure even distribution of pressure along the bend. The tool supports accurate shaping without the need for complex machinery and helps extend the service life of bent tubing by preserving wall integrity.

Suitable for

• Copper tubing with 25 mm outer/nominal diameter where wall support is required
• Aluminium pipes and soft metal tubes used in refrigeration and heating installations
• Thin-walled steel tubes in light plumbing or repair work
• Manual bending operations in on-site HVAC, plumbing maintenance and DIY projects

Key specifications

• Intended tube diameter: 25 mm
• Material: spring steel coil designed for internal reinforcement
• Type: external bending spring (slides inside tube bore)
• Compatible with: copper, aluminium and thin-walled steel tubes
• Use mode: manual bending support for preventing kinks and maintaining tube shape

How to use

Insert the steel coil into the tube bore so it spans the area to be bent, making sure the spring reaches slightly beyond the intended bend zone. Gradually form the bend by hand or with a bending tool while the spring remains inside to distribute compressive forces and prevent local collapse. After completing the bend and allowing the tube to settle, slide the spring out carefully to avoid deforming the new shape. Inspect the tube for any irregularities and make minor adjustments if necessary.

Usage recommendations

Use the spring with tubes of the specified diameter and avoid forcing it into pipes with significantly different inner dimensions. For repeated or severe bending tasks, check the spring for wear and replace it if coils become distorted. When working with plated or treated tubing, protect finishes from scratches during insertion and removal. Follow safety practices such as wearing gloves and eye protection while bending metal tubing.