MCE

Description

The MCE airtight circular flexible sleeve is designed to ensure the continuity of airtightness in circular ductwork systems for ventilation, air conditioning, and air handling applications.

The airtightness of ventilation systems is now a key factor in the energy performance of buildings. Air leakage at flexible sleeves can lead to significant energy losses, increased energy consumption, reduced system performance and poorer indoor air quality.

The French Technical Centre for Air Handling and Thermal Industries (CETIAT) has identified flexible sleeves as one of the main potential sources of air leakage in HVAC ductwork.

Developed to address these challenges, the MCE airtight circular flexible sleeve maintains airtight continuity between equipment and ductwork while significantly reducing air leakage at connection points.

Thanks to its integrated EPDM lip seal and optimized design, the MCE achieves Class C airtightness in accordance with EN 15727, providing leakage levels up to nine times lower than those of a Class A flexible sleeve.

This airtight flexible sleeve provides a reliable solution for reducing air leakage, improving the energy performance of HVAC systems and meeting the requirements of RT 2012 and RE2020, while supporting energy efficiency and building decarbonization objectives.

In addition to its airtightness performance, the MCE helps reduce vibration transmission between equipment and ductwork while contributing to the attenuation of noise generated by ventilation and air handling systems.

Available in a range of materials and fire classifications, the MCE airtight circular flexible sleeve meets the requirements of commercial buildings, public buildings (ERP), technical rooms and environments requiring high indoor air quality.

The MCE airtight circular flexible sleeve contributes to:

• ensuring airtight continuity in circular ductwork systems;
• minimizing air leakage at connection points;
• achieving Class C airtightness in accordance with EN 15727;
• improving the energy performance of buildings;
• reducing energy losses caused by air leakage;
• meeting the requirements of RT 2012 and RE2020;
• supporting energy efficiency and building decarbonization strategies;
• reducing vibration transmission between equipment and ductwork;
• attenuating noise transmission;
• contributing to improved indoor air quality;
• delivering consistent on-site performance.

The MCE is particularly well suited to the following applications:

HVAC and air handling

• Ventilation systems;
• Air conditioning systems;
• Air handling units (AHUs);
• Circular ductwork;
• Air handling installations.

Commercial buildings

• Office buildings;
• Public buildings (ERP);
• Educational facilities;
• Healthcare facilities;
• Hotels;
• Retail buildings.

High airtightness environments

• Cleanrooms;
• Laboratories;
• Technical rooms;
• Energy-efficient buildings.

Thanks to its optimized design, integrated EPDM lip seal and certified airtightness performance, the MCE airtight circular flexible sleeve provides consulting engineers, contractors, manufacturers and building operators with a reliable, durable solution perfectly suited to the requirements of modern HVAC installations.

Characteristics

Type

• Airtight circular flexible sleeve for HVAC ductwork

Function

• Ensure airtight continuity in circular ductwork systems
• Minimize air leakage at connection points
• Contribute to the energy performance of HVAC systems
• Reduce vibration transmission between equipment and ductwork
• Attenuate noise transmission
• Facilitate the connection of HVAC equipment
• Contribute to improved indoor air quality

Dimensions

• Minimum diameter: Ø100 mm
• Maximum diameter: Ø710 mm
• Flexible sleeve height: 200 mm

Materials

• • Polyurethane-coated glass fabric, fire classification M0 / A2-s1,d0
  • PVC-coated polyester fabric, fire classification M1 / B-s1,d0
  • PVC-coated polyester fabric, without fire classification
  • Integrated EPDM lip seals

Performances

Airtightness

• Class C in accordance with EN 15727 (air leakage up to 9 times lower than Class A)

Maximum operating pressure

• 2000 Pa

Maximum negative pressure

• -750 Pa

Operating temperature range

• Polyurethane-coated glass fabric: -20°C to +90°C
• PVC-coated polyester fabric (fire-rated and non-fire-rated): -30°C to +70°C

Fire classification

• • Polyurethane-coated glass fabric: M0 / A2-s1,d0
  • PVC-coated polyester fabric: M1 / B-s1,d0

Applications

• HVAC systems
• Commercial buildings
• Public buildings (ERP)
• Cleanrooms
• Laboratories
• Ventilation systems
• Air conditioning systems
• Air handling systems

Options

• Conical flexible sleeves available, subject to approval by our Engineering Department following a feasibility assessment