EFS Engineering Ltd.

Modulating rotary damper automatically responds to changes in duct pressure to maintain set flow. Balance supply or exhaust/return duct in high-rise building. Sized to fit inside standard rigid round ducting, take-offs, tees, and more. Dual-side airflow adjustment dial and CFM indicator allows you to set or change the airflow quickly, in supply or exhaust applications, without removing the CAR3 from the duct. Resin is enhanced with antimicrobial, anti-static, and flame retardant additives for increased safety and durability.

Provide a pre-set constant airflow on the network, whatever pressure changes occur. Simple to install (no tools needed). No wiring required: mechanically self-powered. Easy to adjust airflow using tool-free rotating ring – MR Modulo. Optimum control (precise, stable, silent and sustainable). Available in 8 product references. PVC-free and no maintenance required. UL certification (UL 2043)

Galvanized steel construction with flanged duct connection. Volume flow controllers work with a smooth-running, asymmetrically angled plate, which guarantees a sensitive responding behavior even in case of low volume flows. Control plate is supported by two maintenance free PTFE bearings. Flow rate can be easily set or reset within airflow range by using 2 mm Allen key. Airflow tolerances: Operating temperature range: -30 °C / +100 °C. Minimum size: W = 150 mm; H = 100 mm; L = 220 mm Maximum size: W = 600 mm; H = 300 mm; L = 385 mm Note: Width must be same or larger than Height.

Attenuators are used as a complementary part of the HVAC system, to reduce noises arising from the fans, airflow inside the duct or any other noise source. The attenuators are used for a wide variety of applications, including: air treatment units, axial fans, centrifugal fans, generator rooms, chiller cooling units, industrial noise control systems spread along the ducting systems. The central pod is used for enhanced performance. EFS attenuators have been tested at the SRL laboratory in the UK in accordance with BS/EN ISO 7235:2009. The Circular attenuators are made by EFS Engineering in Israel.

Attenuators are used as a complementary part of the HVAC system, to reduce noises arising from the fans, airflow inside the duct or any other noise source. The attenuators are used for a wide variety of applications, including: air treatment units, axial fans, centrifugal fans, generator rooms, chiller cooling units, industrial noise control systems spread along the ducting systems. EFS attenuators have been tested at the SRL laboratory in the UK in accordance with BS/EN ISO 7235:2009. The Circular attenuators are made by EFS Engineering in Israel.

EFS Multi-Blade fire damper is rated as a 3 hours fire damper for use in dynamic systems, per SI 1001 part 3 (UL 555). As a life safety fire damper, it has a failsafe design which enables the damper to automatically close upon the detection of heat and/or loss of power. The electric heat responsive device enables controlled closure through the actuator and is automatically remotely reset after testing or power failure conditions. EFS dynamic Fire damper provides a low pressure drop design, qualified to 2,000 ft/min fpm (10.2 m/s) and 4.0 in. WC (1.0 kPa) and can be installed in vertical walls and partitions or horizontally in floors or assemblies with fire resistance ratings up to 4 hours.

EFS Multi-Blade fire damper is rated as a 3 hours fire damper for use in static systems, per SI 1001 part 3 (UL 555). As a life safety fire damper, it has a failsafe design which enables the damper to automatically close upon the detection of heat and/or loss of power. The electric heat responsive device enables controlled closure through the actuator and is automatically remotely reset after testing or power failure conditions. EFS damper provides a low pressure drop design and can be installed in vertical walls and partitions or horizontally in floors or assemblies with fire resistance ratings up to 4 hours.

EFS Multi-Blade fire damper is rated as a 1-1/2 hour fire damper for use in static systems, per SI 1001 part 3 (UL 555). As a life safety fire damper, it has a failsafe design which enables the damper to automatically close upon the detection of heat and/or loss of power. The electric heat responsive device enables controlled closure through the actuator and is automatically remotely reset after testing or power failure conditions. EFS damper provides a low pressure drop design and can be installed in vertical walls and partitions or horizontally in floors or assemblies with fire resistance ratings up to 2 hours.

A fully motorized system consists of a control box, rollers, motors, fabric, bottom rod, side guides and electronic components. Each component is tested and approved individually to meet the stringent safety requirements 4 hours fire protection 4.5 hours smoke protection 30 mins heat radiation protection The curtains are installed in a unique, hidden and aesthetic method that assimilates them as an integral part of the building’s ceiling or wall so that it does not visually detract the overall design.

Horizontal fire & smoke curtain is a unique solution for closing stairwells and atriums at a significantly lower cost compared to other rigid solutions, while reducing the costs and weight of the construction required for application around the horizontal opening. A fully motorized system consists of a control box, rollers, motors, fabric, bottom rod, side guides and electronic components. Each component is tested and approved individually to meet the stringent safety requirements 3 hours fire protection 4.5 hours smoke protection Two-hours heat radiation protection The curtains are installed in a unique, hidden and aesthetic method that assimilates them as an integral part of the building’s ceiling or wall so that it does not visually detract the overall design.

A fully motorized system consists of a control box, rollers, motors, fabric, bottom rod, side guides and electronic components. The egress door allows people to exit safely by easy opening without effort and easy closing as well as to restore the desired protection rating. Each component is tested and approved individually to meet the stringent safety requirements 4 hours fire protection 4.5 hours smoke protection Two-hours heat radiation protection The curtains are installed in a unique, hidden and aesthetic method that assimilates them as an integral part of the building’s ceiling or wall so that it does not visually detract the overall design.

A fully motorized system consists of a control box, rollers, motors, fabric, bottom rod, side guides and electronic components. Each component is tested and approved individually to meet the stringent safety requirements 2 hours fire protection 4.5 hours smoke protection Two-hours heat radiation protection The curtains are installed in a unique, hidden and aesthetic method that assimilates them as an integral part of the building’s ceiling or wall so that it does not visually detract the overall design.

EFS-FC fire curtain consists of a control box, rollers, motors, fabric, bottom rod, side guides and electronic components. The curtains are installed in a unique, hidden and aesthetic method that assimilates them as an integral part of the building’s ceiling or wall so that it does not visually detract the overall design. The curtain has a fire resistance rating of 2 hours (120 minute). The fire and Smoke system is also rated to UL 1784 according to the requirements of smoke and draft control assemblies defined in NFPA 105. The curtain is a UL Listed & Classified system.