Duct Seals – Filoform MDIII Water & Gas Cable Duct Sealing Kits

Duct Seals – Filoform MDIII Water & Gas Cable Duct Sealing Kits
Filoform MDIII is a water and gas cable duct sealing kit developed as a simple solution for sealing cables and pipes in ducts or bore holes.
The MDI duct seal kits are extremely flexible and can be installed in ducts vertically and horizontally – the duct sealing system is specified and used by major Electrical, Gas & Water Utililty companies in the UK and Benelux countries.

Filoform MDIII Water & Gas Cable Duct Sealing Kits
Water & Gas Cable Duct Sealing Kits
Features & Benefits
- Gas and water tight cable duct seal kits (1,0bar)
- Fire resistant duct seals available with Filoform MD+
- Resistant to Hydrogen Sulphide / Methane and many other gases
- Complies with ATEX regulations for hazardous area locations and cable sealing
- WIMES Compliant, (3.02 Clause 7.4.3.2, d,e)
- Suitable for cable ducts / bore holes
- Quick and easy installation
- A complete kit for one duct
- Seals XLPE EPR PVC & PE sheathed cables, PILC, (HD) PE pipes
- Excellent mechanical strength, after curing resistant to movements, shocks and vibrations
- Suitable for cable renovations – can be installed retrospectively
- Over 25 years of operational experience
Duct Seals – Filoform MDIII Water & Gas Cable Duct Sealing Kits
Technical Specification
Duct Seal System Properties | Unit | Value |
Start time expansion | seconds | > 95 |
End time expansion | minutes | 15 |
Compressive strength | N / cm² | > 100 |
Gas and water tightness 1,0bar | 30 days | no leakage |
Density 10m water column | 30 days | no leakage |
Volume consistency | cube 10 x 10cm | no change |
Temperature Cycles, -20°C tot +40°C | 10 consecutive cycles | no leakage |
Vibration test 10 Hz/amplitude 3mm | 240 hours | no leakage |
Axial tensile force | diameter x 10 N | no leakage |
Resistance to bending | cables 45° in 2 directions >250mm | no leakage |
Expansion polyurethane foam in pipe | cm | < 40 |
Temperature resistance | °C | +120 |
Chemical resistance | ||
0,1N Na₂SO₄ | 30 days | no degradation |
0,1N NaCl | 30 days | no degradation |
0,1N H₂SO₄ | 30 days | no degradation |
0,1N NaOH | 30 days | no degradation |
Diesel | 30 days | no degradation |
Gasoline | 30 days | no degradation |
Resistance | ||
Moulds | good | |
Rodents | good | |
Shelf life | months | minimal 30 |
Filoform MDIII – Product Specification
Filoform Part Ref | Cable Duct Seal Description | Maximum Duct Diameter (mm) | Maximum Cable Diameter In The Duct (mm) | Order Unit |
---|---|---|---|---|
780291 | MDIII-25 Duct Sealing Kit | Ø 25 max. | Ø 8 max Ø 70 max. Ø 70 max. . | per piece |
282550P | MDIII-50 Duct Sealing Kit | Ø 50 max. | Ø 20 max. | per piece |
282575 | MDIII-75 Duct Sealing Kit | Ø 75 max. | Ø 40 max. | per piece |
280295 | MDIII-110 Duct Sealing Kit | Ø 110 max. | Ø 80 max. | per piece |
280296 | MDIII-160 Duct Sealing Kit | Ø 160 max. | max. Ø 130 | per piece |
2802973 | MDIII-200 Duct Sealing Kit | Ø 200 max. | max. Ø 160 | per piece |
2802978 | MDIII-250 Duct Sealing Kit | Ø 250 max. | Ø 220 max. | per piece |

Filoform MDIII Duct Sealing System

Sealing Cable Ducts With Roxtec – cable sealing modules consist of two halves with removable layers and a centre core which is removed to permit cable or pipe installation in medium/high voltage substations, hazardous areas and electrical infrastructure

Cable & Duct Sealing Transit Frames – T&D Approved Roxtec Distributor