TF · liner
Nord° Liner 3.2 NF-53
A TF/AK vacuum liner with a V-shaped sealing membrane, designed to conform and stabilise in a balanced way.
Overview
What this product is for.
Transfemoral users in vacuum systems where rotation control and a reliable seal matter across the day.


TF vacuum liner, conical
Benefits
Designed to.
- Conform without deforming
- Hold an effective vacuum through a V-shaped sealing membrane
- Control rotation
- Allow easy use of stump socks
Why the details matter here
The sealing membrane geometry and the NF-53 formulation decide whether the seal survives a full day of loading, sitting and transfers.
Technical data
Specification.
- Nord° Formula
- NF-53 custom blend HQ TPE
- Intended for
- All types of activities
- Length
- ≈ 44 cm
- Colour
- Dark grey
- Weight
- Size 32 cylindrical ≈ 650 gram
- Products
- Produced in Spain
- Nord° Formula production
- Produced in Sweden
- Packaging
- 85% recycled paper. Produced in Sweden
- CO2 emission
- LCA in progress
Sizing
Size selection.
Minimum residual limb length: sizes 25-30 = 125 mm, 32-40 = 135 mm.
| Size cm | Part no. |
|---|---|
| 25 | 322225 |
| 26.5 | 322226 |
| 28 | 322228 |
| 30 | 322230 |
| 32 | 322232 |
| 34 | 322234 |
| 36 | 322236 |
| 38 | 322238 |

Instructions
Selecting and using it.
How to select
Measure circumference 4 cm from the distal end with soft tissue hanging. Compare limb length to the sound side in thirds. Measure circumference 2 cm below the perineum, then choose cylindrical or conical and check the minimum limb length for the size.
How to use
Roll on from the distal end, check membrane placement, and clean the membrane and textile daily.
User manuals and technical documentation are available to clinics on request — ask us for the current version.
Evidence
What supports this.
LCA in progress. Vacuum retention testing is part of the current evidence programme.
Responsibility
Measure first. Claim second.
Product-level CO2e status: LCA in progress. We publish the method together with the number, and we state what it does not cover.