Greenheck Ceiling Fan with Factory-Installed Radiation Damper UL Approved for Wood Truss Applications
Dampers

Greenheck Ceiling Fan with Factory-Installed Radiation Damper UL Approved for Wood Truss Applications

Greenheck now offers an option for its ceiling exhaust fan and ceiling radiation damper to be combined at the factory into one unit shipped ready to install. Model CRD-310WT, a UL Classified ceiling radiation damper for wood truss applications, can be factory-mounted to one of six Greenheck ultra-quiet SP-A fan models (size 50 to 190 cfm) eliminating field assembly for fast, easy installation....

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AirLoc Damping Pads Help "Quiet the Wind" for Residential Wind Turbine
Sound Dampers

AirLoc Damping Pads Help "Quiet the Wind" for Residential Wind Turbine

AirLoc was contacted by Maurice Ramirez, DO, PhD, of Aeolian Wind Technologies, LLC to help reduce structure borne noise in a 15Kw small wind turbine installed in Non-Coastal Florida. The hollow steel tower was initially displaying vibration amplification of up to 90 dBA., Even with various noise mitigating alterations, max sound pressure was still measuring 52 dBA, well in excess of local noise...

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AirLoc Damping Pads Help "Quiet the Wind" for Residential Wind Turbine
Sound Dampers

AirLoc Damping Pads Help "Quiet the Wind" for Residential Wind Turbine

AirLoc was contacted by Maurice Ramirez, DO, PhD, of Aeolian Wind Technologies, LLC to help reduce structure borne noise in a 15Kw small wind turbine installed in Non-Coastal Florida. The hollow steel tower was initially displaying vibration amplification of up to 90 dBA., Even with various noise mitigating alterations, max sound pressure was still measuring 52 dBA, well in excess of local noise...

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New ISD Series Dampeners Available in 13mm and 25mm Sizes
Dampers

New ISD Series Dampeners Available in 13mm and 25mm Sizes

Feature temperature ranges from -51°C to 138°C for EPDM as well as 10°C to 137°C for PTFE and maximum working pressure of 100 psi. Available in polyethylene construction with PTFE and EPDM diaphragm material options. Ideal for paints and coatings, chemical, hygienic and general industrial applications.

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New Model HCD-221 Offers Velocity up to 4000 fpm
Dampers

New Model HCD-221 Offers Velocity up to 4000 fpm

Isolation control damper provides shutoff with low leakage in HVAC or industrial process control systems. Offers differential pressure up to 10 in. wg and withstands temperature from - 40 to 400 degrees F. Features a blade seal mechanically fastened to the blade that is field replaceable.

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Greenheck EM-30 Backdraft Damper Now AMCA Licensed
Air Flow Dampers

Greenheck EM-30 Backdraft Damper Now AMCA Licensed

Greenheck’s EM-30 backdraft damper series is now AMCA Licensed for Air Leakage and Air Performance. Designed to open by air pressure differential and close by gravity, backdraft dampers can be used as exhaust or intake dampers. The EM-30 is a vertical-mount horizontal airflow backdraft damper for pressures up to 10 in. wg and velocities up to 3500 fpm. Greenheck EM-30 series backdraft dampers...

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Griffco Valve's New Fusion Dampeners Combine The Technologies of Back Pressure Valves and Pulsation Dampeners
Vibration and Mechanical Dampers

Griffco Valve's New Fusion Dampeners Combine The Technologies of Back Pressure Valves and Pulsation Dampeners

Available in NPT connection sizes of 1/4”, 3/8” and 1/2”. With a maximum operating pressure of 150 psi (10 bar) at 70°F (21°C) it will help cover a wide range of applications in the municipal and industrial markets. Body materials of construction include PVC, CPVC, PP and PVDF as well as the bladders are available in EPDM, Viton®, Hypalon® and PTFE.

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