HVAC systems in Pakistan operate under demanding conditions. High summer temperatures, humid environments, chilled-water systems and continuously operating air-conditioning equipment all place greater demands on pipe insulation.
For these applications, NBR rubber foam pipe insulation provides a flexible closed-cell solution designed to reduce heat transfer and help control condensation.
Scudoflex NBR is a flexible elastomeric insulation system manufactured in closed-cell foam and available in tubes, rolls and sheets. The system is intended for HVAC ductwork, chilled-water pipework, refrigeration, heating and cooling systems and mechanical equipment.
Why closed-cell NBR insulation matters
The cellular structure of insulation is important when the objective is condensation control.
A closed-cell material has a non-porous structure that limits moisture penetration. Scudoflex NBR has a reported vapour diffusion resistance factor of μ > 17,000, supporting its use where moisture control is a key design requirement.
The published technical data also gives thermal conductivity from 0.032 W/m·K at 10°C, with additional values listed for 23°C and 35°C.
Where NBR rubber foam pipe insulation is used
Typical applications include:
- Chilled-water pipework
- Air-conditioning pipework
- Refrigeration lines
- Heating and cooling systems
- Mechanical services
- HVAC plant rooms
- Commercial buildings
- Industrial facilities
- Hospitals and institutional buildings
In cities such as Lahore, Islamabad and Rawalpindi, chilled-water and air-conditioning installations can benefit from insulation systems designed around condensation control. Karachi projects can also require careful moisture and corrosion-control considerations because of the coastal environment.
NBR pipe insulation sizes
Scudoflex NBR tubes are available for nominal internal diameters from 6 mm to 114 mm, with insulation thicknesses from 6 mm to 32 mm. Rolls and sheets are available from 6 mm to 50 mm, including self-adhesive options.
The correct thickness should be selected according to pipe temperature, ambient conditions, condensation risk, energy requirements and project specifications.
Technical characteristics
Published Scudoflex NBR data includes:
| Parameter | Published value |
|---|---|
| Thermal conductivity @ 10°C | 0.032 W/m·K |
| Thermal conductivity @ 23°C | 0.033 W/m·K |
| Thermal conductivity @ 35°C | 0.035 W/m·K |
| Vapour diffusion resistance | μ > 17,000 |
| ASTM E84 | FSI <25 / SDI <50 |
| BS 476 | Class 0 |
| UL 94 | HF-1, V-0, 5VA |
| Ozone depletion potential | 0 |
These figures should always be checked against the latest Scudoflex technical datasheet before project specification.
Choosing NBR insulation for a Pakistan project
For an HVAC contractor, consultant or MEP procurement team, the specification should consider:
- Pipe diameter
- Operating temperature
- Ambient temperature
- Relative humidity
- Required insulation thickness
- Condensation-control requirements
- Facing requirements
- Installation environment
- UV/weather exposure
- Fire-performance requirements
Scudoflex NBR is available in unfaced, aluminium-foil-faced and glass-fabric-faced configurations, allowing the insulation system to be matched to the installation environment.
NBR insulation supplier for Lahore, Islamabad and Karachi
For projects in Lahore, Islamabad, Rawalpindi and Karachi, specification should be based on the actual operating conditions and required technical performance rather than simply selecting insulation by thickness.
Scudoflex provides NBR insulation systems for HVAC, chilled-water, refrigeration and mechanical-services applications, with technical documentation available through its technical library.
Need an insulation specification for your project? Contact Scudoflex for product selection, sizes and technical support.