Exciting Upgrades to Our Popular LIST Louver Information and Selection Tool (LIST)
When Pottorff launched LIST 5 years ago, it was industry leading software that gave users the ability to select and size louvers given a multitude of selection criteria for any project requirement. Since its inception, it has attained widespread adoption among pottorff representatives, as well as the engineering and architectural communities.
Our new upgrade features:
• More Search Parameters
• Fully Responsive, Intuitive Design
• No Need to Register to use the Tool, Register To Save Priojects
• Save Product Schedule as PDF or Excel; Option to Save to Import into our SPECs Pricing Tool
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Latest News
10/01/19
Pottorff Sponsors October AMCA Webinar - Oct. 23, 2pm Eastern Daylight TIme
AMCA's October webinar features updates on codes, standards and certifications for severe-duty louvers and fire/smoke dampers. Discussion will include changes in the 2019 editions of NFPA 80 and NFPA 105 and code requirements for louvers in hurricane-prone regions.
To Register
09/30/19
Pottorff Announces Increased Duct Connections for Wood Truss Ceiling Radiation Damper
Our CFD-521 Wood Truss Ceiling Radiation Damper features increased duct connections and mounting options. When the damper is configured to close within 1/8" of the top of the gypsum board, boot rails can be used to mount the damper to the assembly. Additionally, duct connections can be made on the top and on any combination of sides.
09/18/19
Pottorff's ECV-645-MD now Features Streamlined Installation
Our ECV-645-MD vertical blade, Miami-Dade louver now offers a streamlined installation with minimal hardware required. It is also 2017 Florida Building Code Approved, AMCA Certified for Water Penetration, Air Performance and Wind-Driven Rain and AMCA 540 and 550 Listed.
09/11/19
Pottorff Feaures Ad in the Florida Caribbean Architect Magazine in September
Our Miami-Dade louvers are featured in the Fall issue of the FBC. Our Miami-Dade hurricane louvers are AMCA Certified and AMCA 540 and 550 Listed, 2017 Florida Building Code Approved and Texas Department of Insurance Listed.
08/29/19
Pottorff has article in the September issue of AMCA InMotion Magazine
Pottorff features an ad on our severe duty louvers in the September issue of The ASHRAE Journal. Accompanying our ad is an article co-written by Doug Petty, Pottorff's Louver Product Manager. The article, entitled 'Improving Building Resilience with Severe-Duty Louvers', talks about the fact that more states are adopting building codes requiring severe duty louvers. View article
08/12/19
Pottorff's NEW High Performing Louvers Feature Drainable Performance at an Economical Price!
In order to improve performance for you and your clients, we have redesigned our non-drainable louvers. These louvers now have drainable heads and jambs meaning increased performance at no additional cost.
• Best-in-Class Water Penetration Performance
• Get Drainable Performance at a Non-Drainable Price.
07/16/19
NEW End Plenum adds Flexibility when installing our CFD-521-90 Ceiling Radiation Damper
Our new end boot option gives added adjustibility to the installer to allow for flex duct connection without crimping or turning when space is tight to the truss space. The addition of this boot to our CFD-521-90 will give you another option when choosing the right application for your jobs.
06/04/19
NEW CAR-T Constant Airflow Regulator with Transition
Pottorff is pleased to announce the release of our model CAR-T to complement our CAR constant airflow regulator. The CAR-T offers the CAR factory installed in a square to round or rectangular to round transition. This labor saver can help installers save time by offering an easy way to install round constant airflow regulators in a square or rectangular duct.
Model CAR-T constant airflow regulator with transition is designed to save a significant amount of money and energy by precisely controlling airflow to balance HVAC systems without the need for electrical or pneumatic controls and sensors.
CAR-T Installation Instruction
06/03/19
Pottorff Releases the PI-10 Indicator Switch Package for Curtain Type Fire Dampers
Our PI-10 switch package can be used to signal an alarm or fore control system to indicate blade closure on VFD dampers. The PI-10 can be used on both static and dynamic, 1-1/2 hour rated and 3-hour rated dampers. It can be ordered factory mounted, or loose for field installation as an option on our VFD models. It can also be ordered as a stand-alone model for retrofitting installed VFD dampers that need this blade indication.
06/03/19
Pottorff Releases the CAR-FD Constant Airflow Regulator with Fire Damper
Our model CAR-FD can be ordered with a static or dynamic curtain type fore damper that can be installed in fore rated walls rated up to two hours. The CAR-FD fire damper employs curtain style blades for point-of-origin control of fire in static or dynamic HVAC systems.
04/30/19
Introducing Expanded Modulating Actuator Options for Combination Fire/Smoke Dampers
The expanded Modulating Actuator options will allow our UL rated airfoil blade fire/smoke dampers to act as both life safety and air control dampers.
Pottorff is pleased to announce expanded modulating actuator options for our out-of-partition and horizontally mounted steel airfoil combination fire/smoke dampers. The Belimo FSAFB24-SR(S) modulating actuator can now be selected as an option on Pottorff's horizontally mounted FSD-151 and FSD-152 dampers in assemblies up to 120" x 48" and on FSD-151-OP and FSD-152-OP dampers up to 36" x 24".
04/05/19
Pottorff Announces NEW Concealed Motor Louvers
Pottorff's NEW concealed motor louvers are designed to be used in any situation where our standard operable and combination louvers would be used, but where access to the actuator and hardware needs to be controlled or restricted. The actuator will be concealed in the sill of the louver, and can be accessed internally (by default), externally, or both.
EOD-445-CM
EOJ-445-CM
EXD-437-CM
EOD-637-CM
EOJ-637-CM
EXA-645-CM
EXD-645-CM
03/29/19
Increased Performance for Pottorff Airfoil Blade Fire/Smoke and Smoke Dampers!
Pottorff is pleased to announce increased performance ratings for our airfoil blade smoke and combination fire/smoke dampers. These dampers are now UL approved for Class 1 leakage at 4000 fpm and 8" static pressure at a maximum assembly size of 96" x 48". This assembly size makes these dampers the largest in the industry. These ratings cover combination fire/smoke dampers rated to 1-1/2 to 3 hours and Class 1 or Class 2 leakage as well as smoke dampers rated to Class 1 or Class 2.
• Maximum Dynamic Closure Velocity: 4000 fpm
• Maximum UL 555S Rated Pressure: 8 in. wg.
• Class 1 and Class 2 UL 555S Rated Leakage
• AMCA Certified for Air Performance
View Dampers
03/28/19
Pottorff's EOJ-690 Operable Louver Featured In The April Edition of The ASHRAE Journal
Our EOJ-690 high performing louver features 90 degree operable J-blades that range from closed to fully open and a drainable head frame. This results in a louver that protects openings from water penetration, while simultaneously providing a high free area product. A cost-saving advantage of high free area means that more air can enter into a smaller wall opening. This louver is ideal for warehouses or distribution type projects, where maximum airflow is required.
High Free Area: 68.5%
AMCA Certified for AIr Performance
03/11/19
NEW Model CAR
Our new CAR – Constant Airflow Regulator – is designed to save time and money by precisely controlling airflow to balance HVAC systems without the need for electrical or pneumatic controls and sensors. A self-regulating aero-wing and spring piston design automatically adjust for variable duct pressures caused by building duct design, thermal stack effect, dust build up filters, and other varying building conditions.
• Economical – no need for electronic/pneumatic actuators or sensors
• Available in standard, low and high pressures
• Field adjustable with only a screwdriver
• Sizes from 3-10 inches
03/10/19
Pottorff's Constant Airflow Regulator Featured in ASHRAE Journal
Pottorff’s new CAR Constant Airflow Regulator is featured in the March issue of the ASHRAE Journal. The CAR features precise control of indoor air quality and is available in sizes from 3-10 inches.
02/01/19
Pottorff's ECD-545-MD Features Superior Performance and Streamlined Installation
Our ECD-545-MD severe duty louver is engineered and tested to withstand the extreme loads, debris impact and cyclic fatigue associated with the weather effects from hurricanes and tropical storms.
AMCA 540 (Enhanced) Listing
AMCA 550 listed (with CD-51 damper)
2017 Florida Building Code Pending
Texas Department of Insurance Listed
01/23/19
Pottorff's Excellence in Air Management and Control Featured in January Issue of THE ASHRAE Journal
Our full-line of Louvers, Air Control Dampers, Fire and Smoke Dampers and Sound Control products is backed by our Industry Leading 5-year warranty.
01/13/19
2019 Annual Pottorff Representative Principal Luncheon
Thank you to our representatives for a successful 90th Anniversary Luncheon and Awards Ceremony. This year’s event was held at the beautiful Commerce Club in Atlanta, Georgia. Over 120 of our reps viewed our recently and soon to be released products on the 49th floor of the club which overlooked Atlanta.
01/07/19
Mark Saunders accepts role as Pottorff's VP of Sales and Marketing
We are pleased to announce the hiring of Mark Saunders as our new Vice President of Sales & Marketing. Mark brings 20+ years of sales and marketing leadership expertise with him including 8-1/2 years with Pottorff as our Western Regional Sales Manager, 8 years with Titus as Marketing Manager and Regional Sales Manager, and most recently as Director of Sales & Marketing for Ruskin.
11/09/18
Pottorff's high-performing louvers featured In November issue of THE ASHRAE Journal.
Pottorff louvers are designed and tested in-house to our own high standards for performance and reliability. Our exacting requirements means that you can be assured that our louvers meet or exceed industry regulations and your project criteria. Choose the right louver every time with LIST, our Louver Information and Selection tool.
11/06/18
Pottorff has article in the November issue of AMCA InMotion Magazine
In the AMCA InMotion supplement of the November ASHRAE Journal, our Product Manager, Doug Petty, has written an informative article on "Specifying and Sizing Louvers to Limit Water Penetration." Doug says, "Over the life of a building, few issues can be more vexing then water infiltration. Not only can it affect the performanc of mechanical components, if not addressed, it can damage drywall, ductwork, and other building materials, leading to long-term contaminaion issues, such as mold and rust. Repairs can be costly and intrusive. For these reasdons, it is important to design an HVAC system to prevent water penetration into vulnerable areas.
Read the entire article here.
10/29/18
Pottorff XAV-545 FEMA Grille now Classified as a UL Windstorm Rated Assembly
Our XAV-545 5-1/2" deep, inverted V-blade FEMA grille is now classified as a UL Windstorm Rated Assembly. This model meets National Storm Shelter standards and is designed in accordance with FEMA 361 and FEMA 321 guidelines for storm shelters and safe rooms. It is also ICC-2014 compliant and AMCA Certified for Water Penetration and Air Performance.
10/25/18
NEW Ceiling Radiation Dampers with Labor Saving Boot Rail Installation
Pottorff is pleased to announce the addition of the CFD-521-90 and CFD-521-NP90 to its Wood Truss Ceiling Radiation Damper line. These dampers are designed to be installed in wood truss applications, offering a 28 gauge steel outlet box with boot rail installations. The CFD-521-90 comes with a factory installed 90 degree plenum while the CFD-521-NP90 is designed to be installed with a field-installed steel plenum.
The boot rail installation allows for connection directly to the bottom of the wood trusses to reduce labor during installation, and can be used in designs that use resilient channel to connect the gypsum board to the trusses, or in designs where the gypsum is fastened directly to the wood trusses.
UL 555C Listing: R14603
CSFM Listing: 3226-0368:104
09/27/18
Pottorff Control Dampers now AMCA Certified Class 1A Air Leakage
Pottorff is excited to announce that our CD-45 and CD-46 steel airfoil blade control dampers are now AMCA Certified for Class 1A Air Leakage. These dampers are certified to Class 1A and Class 1 leakage up to 6 inches of static pressure which puts them in compliance with current increased environmental regulation.
09/01/18
Pottorff Announces New EFJ-937-MD Miami-Dade Louver
Our new EFJ-937-MD dual-module louver is engineered and tested to withstand the extreme loads, debris impact, and cyclic fatigue associated with the severe weather effects of hurricanes. It is approved for use in Miami-Dade and Brower counties, and is listed under the 2017 version of the Florida Building code. It is an ideal choice for those geographic areas, or anywhere along the Atlantic or Gulf coasts where protection against severe weather is required.
* Free area of 53.9%
* Miami-Dade Approved
* Florida Building Code Listed
* AMCA 540 (impact Resistant) Listed
* AMCA 550 (High Velocity Rain Resistant) Listed
* AMCA Certified for Water Penetration, Air Performance and Wind-Driven Rain
08/31/18
NEW CFD-521-ST - First Ceiling Radiation Damper Approved for Cold-Formed Steel
Pottorff is pleased to announce the addition of the CFD-521-ST to its product line. It employs butterfly blades for point-of-origin control of radiant heat in HVAC systems. Installed horizontally in the ceiling membrane of combustible roof-ceiling assemblies with fire resistance ratings up to and including 1 hour.
07/28/18
Pottorff's NEW PEV-445 Elevator Ventilation Penthouse
The PEV-445 extruded aluminum penthouse is designed for elevator shaft and gravity ventilation applications. The PEV-445 includes an SD-151, Class 1 smoke dampers that fails open for smoke evacuation.
07/06/18
Pottorff's New EFJ-937-MD features in the July issue of The ASHRAE Journal
The EFJ-937-MD dual-module louver is engineered and tested to withstand extreme loads, debris impact, and cyclic fatigue associated with the severe weather effects of hurricanes. For installation, the EFJ-937-MD offers multiple options requiring minimal hardware and assembly time. The EFJ-937-MD is AMCA 540 and 550 listed, making it ideally suited for use in hurricane-prone and wind-borne debris regions per the International Building Code.
07/03/18
Pottorff's Fire and Fire/Smoke Dampers Featured in the July Issue of the ASHRAE Journal
Pottorff’s fire and combination fire/smoke dampers now feature a UL approved, 3-sided retaining angle installation which allows damper installations without the need to install retaining angles around all 4 sides of the damper. An excellent option when space is tight.
05/10/18
Louver and Damper Product Training Class Held for our Representatives
On May 9-10, Pottorff held a product training class for our representatives. As well as learning the basics on our louvers and dampers, attendees had a tour of our manufacturing plant and in-house testing laboratories. Thanks to all of our attendees for taking the time out of their busy schedules to come to Pottorff and take part in this valuable training.
05/06/18
Pottorff announces NEW Bubble-Tight Control Damper
The CD-95R is a bubble-tight industrial control damper designed for isolation and decontamination applications. Bubble tight dampers are designed to have the lowest leakage ratings possible. Typical applications include industrial processing plants, laboratories, clean rooms, pharmaceutical facilities, nuclear facilities, DOE facilities, and other applications that require extremely low leakage. The CD-95R is tested for bubble tight leakage ratings in accordance with AMCA 500-D up to 30 in. wg (7.5kPa).
• Leakage: In accordance with AMCA-500D
• Maximum Pressure: 30 in.wg.
• Maximum Velocity: 6,500 fpm
05/03/18
3-Sided Angle Installation for Pottorff Fire and Fire/Smoke Dampers
This UL Approved Installation will allow installers to use firestop caulk on one side of the damper in lieu of a traditional retaining angle. This allows damper installations tight to the ceiling, floor, or a wall without the need to install retaining angles around all four sides of a damper.
03/15/18
Pottorff's Ceiling Radiation Dampers Featured in the March issue of the ASHRAE Journal
Our CFD-521-IP and NP are featured in the March ASHRAE Journal. We have increased the allowance for these ceiling radiation dampers to make room for supply grilles with opposed blade dampers. They can now be ordered with up to a 4" clearance to allow room for a 3-1/2" deep grille.
03/07/18
XAV-545 FEMA Aluminum Grille now meets ICC-500-2014
Our XAV-545 5" deep, inverted V blade grille meets the International Code Council (ICC) and the National Storm Shelter (NSSA) standards for design and construction requirements for storm shelters that provide a safe refuge from storms that produce high winds, hurricanes and tornadoes. Designed in accordance with FEMA 361 and FEMA 320 guidelines.
02/20/18
Pottorff announces addition of the RCS-15R Radial Blade Control Damper
Our new RCS-15R radial blade control damper offers an economical way to balance low pressure and velocity applications. This duct mounted damper has manual remote control cables that easily mount in the ductwork to allow adjustment in the face of diffusers. Available in diameters from 6” to 14”.
02/20/18
Pottorff announces addition of its new 90 degree operable louver - the EOJ-690
The EOJ-690 features 90 degree operable J-blades that range from the closed position to fully open. It also has a drainable head to aid in protecting openings from water penetration. it features a free area of 68.5%.
01/10/18
Expanded Size Ratings for Pottorff Airfoil Blade Fire and Fire/Smoke Dampers
We are pleased to announce expanded size ratings for our airfoil blade Fire and Combination Fire/Smoke Dampers. These dampers can now be ordered at a minimum height of 6” for installations where space is at a premium. The expanded size range will allow engineers to specify smaller duct heights to increase usable space between building stories.
01/09/18
Pottorff Ceiling Radiation Damper Clearance Allowance Increased
Pottorff has increased the allowance for our model CFD-521-IP and CFD-521-NP to make room for supply grilles with opposed blade dampers. These models can now be ordered with up to a 4” clearance to allow room for a 3-1/2” deep grille. This allows the option of using many additional steel grilles in wood truss floor/ceiling and roof/ceiling applications.
01/09/18
Pottorff Announces NEW Dual-Module Extreme Weather Louver
Our EFJ-937 dual-module louver features AMCA 550 performance while retaining the aesthetic appearance of horizontal J-blades. The interior features vertical chevron blades for superior resistance to wind-driven rain. Engineered and tested to withstand extreme loads, debris impact and cyclic fatigue associates with the severe weather effects of hurricanes.
• AMCA 540/550 Listed for High Velocity Rain Resistance and Impact Resistance
• AMCA Certified for Water Penetration, Air Performance and Wind-Driven Rain
• Free Area: 53.9%
10/24/17
Pottorff announces new Blast Suppression Damper - BC-550
Our new blast suppression damper BC-550 is designed and tested to provide protection against blasts and instantaneous pressure changes. It has been independently tested for blast pressures up to 15 psi which covers several United Facilities Criteria (UFC) and General Services Administration (GSA) Codes.
Maximum Blast Pressure: Up to 15 psi 415 in. wg. (103KPa) blast load
Maximum Velocity: Up to 4,000 fpm (20.3 m/s)
Temperature: Minimum: -400 F (-400C)
Maximum: 2500 F (1210C)
10/23/17
Pottorff Supplied Silencers and Industrial Dampers for the Alaskan Way Viaduct Replacement Program
As part of the replacement program, the viaduct is being replaced with a 1.7 mile tunnel. This allows the highway to remain open during construction. The tunneling machine known as Big Bertha began the tunnel in July 2013 and the tunnel was completed on April 4, 2017. It was fully dismantled on August 23, 2017. The video below shows the tunnel and Pottorff's installed dampers can be seen at the 1.50 mark.
10/16/17
Pottorff's Blast Damper Featured in the November ASHRAE Journal
Our BC-550 blast suppression is featured in the November ASHRAE journal. This Damper is designed for protection agains blasts and instantaneous preassure changes. It has been independently tested for blast preassures up to 15 psi.
10/04/17
Wilshire Grand Center - Los Angeles, California - Case Study
Pottorff supplied our EDF-445 drainable blade louver, FSD-141 and FSD-125R combination fire/smoke dampers and VFD-10D curtain blade fire damper for the Wilshire Grand Center in Los Angeles, California. This upscale, 73-story skyscraper is the tallest structure in the Los Angeles skyline features a hotel, cutting-edge restaurants and state-of-the-art office complex. This project won the 2014 American Architecture Award from the Chicago Atheneaum Museum or Architecture and Design.
07/17/17
Pottorff Louvers featured in the September issue of the AMCA InMotion magazine
Our AMCA Certified and Listed louvers are featured in the AMCA InMotion supplement in the September issue of the ASHRAE Journal.
06/27/17
Pottorff features our new Blast Damper and Industrial Control dampers in the July 2017 issue of the ASHRAE Journal
Our BC-550 Blast Suppression Damper is featured in the Capabilities section of The ASHRAE Journal. In this double ad, we also showcase our Triple-V blade CD-80 series dampers, Airfoil blade CD-90 series dampers and TD-90 tunnel transit dampers.
06/18/17
Pottorff introduces our updated UL Life Safety brochure
Our expanded and updated UL Life Safety brochure features a quick selection guide, updated information on our fire, smoke and combination dampers, overview of our in-house testing facility, damper options and accessories and overview of our I503 installation.
05/05/17
Pottorff Launches NEW 4" Exhaust Louver
The EFE-430-HP extruded aluminum louver is designed to protect exhaust openings in exterior walls. The EFE-430-HP incorporates a drainable head and drainable jambs with low profile exhaust blades.
04/05/17
Pottorff Launches NEW 4" Intake-Exhaust Louver
The EEI-430 louver is designed to protect air intake and exhaust openings in exterior walls. Separate ducts attach to the louver to reduce the mixing or short cycling of intake and exhaust air. The EEI-430 incorporates a drainable head and drainable jambs with low profile exhaust blades on the top and 30° non-drainable intake blades on the bottom.
