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.
* It has a 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
Latest News
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.
02/09/17
Pottorff launches NEW Acoustic Miami-Dade louver, the EAJ-1235-MD
Pottorff is pleased to announce the launch of it's EAJ-1235-MD. This Miami-Dade approved louver is 12" deep and features a 35 degree insulated J-Blade. This model is also Florida Building Code approved and is AMCA certified for Water Penetration, Air Performance and Sound. It's also AMCA listed for Impact Resistance.
Free Area Velocity: 924 fpm (4.70 m/s)
Air Volume Delivered: 4528 cfm (2.14 m3/s)
Pressure Loss: 0.08 in. wg. (20 Pa)
02/09/17
Pottorff Launches Redesign of the EXD-437 with Improved Performance
Our 4” combination louver, the EXD-437, now features new operable blades, stainless steel jamb seals and standard low leakage seals. It is also now AMCA Certified for Water Penetration and Air Performance.
02/08/17
Pottorff launches NEW Combination Blade, Miami-Dade louver, the EXA-645-MD
Our new 6" deep 37.5 - 45 degree louver features a combination airfoil blade. It's a Miami-Dade certified, Florida Building Code approved and AMCA certified for Water Penetration and Air Peformance. It's also AMCA listed for Impact Resistance.
01/29/17
Pottorff's 2017 Representative Luncheon Meeting in Las Vegas a Success
We invited our representatives to meet and talk with us over lunch about their issues and concerns. They also viewed new product displays, new pricing software demonstrations, a 2016 Year in Review and what was in store for 2017. We were also very excited to be able to award our representatives for reaching their goals and helping us to reach ours. It was a fun and productive afternoon for our reps and for our associates.
01/13/17
FSD-150 Series Rated at 4000 FPM and 350 degree F
Pottorff is pleased to offer the FSD-150 Series steel airfoil combination fire and smoke dampers now for installation in systems designed for the extreme airflow of 4000 FPM and the blistering temperature of 350 degree F.
FSD-151 1-1/2 HR UL Class 1 Combination Fire/Smoke Damper
FSD-152 1-1/2 HR UL Class 2 Combination Fire/Smoke Damper
FSD-351 3 HR UL Class 1 Combination Fire/Smoke Damper
FSD-352 3 HR UL Class 2 Combination Fire/Smoke Damper
01/12/17
Pottorff Products featured in ASHRAE Journal AHR Expo Edition
Our UL rated Fire, Smoke and Combination FIre/Smoke dampers were specified for the World Trade Center complex in New York City. This project had stringent product performance requirements and our products met and exceeded them.
12/16/16
New Project Case Studies added to Pottorff Website
Case studies on Barclays Center in New York, Parkland Hospital in Dallas, Texax, The World Trade Center in New York and the AT&T Stadium in Arlington, Texas have been added to our projects and literature pages on our website.
10/13/16
Pottorff Featured in the Fall 2016 Issue of AMCA InMotion Magazine
Our AMCA Certified and Listed products are showcases in the latest issue of AMCA InMotion Magazine. We also have an advertisement about our AMCA products in the September 2016 isse of Consulting-Specifying Magazine.
09/22/16
Colin O'Connell Accepts Role as Vice President of Sales and Marketing at Pottorff
We are pleased to announce the appointment of Colin O’Connell to the position of Vice President of Sales & Marketing. In this role Colin will be responsible for leadership and strategic planning necessary to grow the business, improve margins for all, and drive positive change in support of our goal to become one of the easiest companies to do business with.
Colin brings over 21 years of experience in the HVAC industry and comes to Pottorff from Johnson Controls where he led the Trion IAQ brands as the Vice President of Sales & Marketing. He and his team rebuilt the Trion IAQ brands in the Commercial, Industrial and Residential Wholesale markets following their acquisition from Fedders by Air System Components in 2008. His experience in our markets & channels, in working with commercial rep organizations and leading a sales & marketing team will be key in driving continued growth for Pottorff.
Prior to joining Trion Colin worked with Marley Engineered Products (Q-Mark and Berko electric heating brands) as their Director of Sales for the Industrial Sales Channel where he was instrumental in managing and growing the sales and distribution channels, consisting of regional and national distributors, national account/manufacturer reps and OEM’s, government and commercial/residential accounts. He started his career in the HVAC industry with Siemens Building Technologies and held roles there teaching programming and operation of their building automation systems and as a Sr. Product Manager developing new products and marketing programs. Before Siemens, Colin served in the United States Navy for nine years operating the Nuclear Power plant onboard Submarines.
06/23/16
NEW 2" Vertical Wind-Driven Rain Louver
Our ECV-245 offers exceptional protection against wind-driven rain under the most severe conditions. The ECV-245 incorporates vertical blades and is available in a wide array of anodized and painted finishes including custom color matching.
AMCA certified for Water Penetration, Air Performance and Wind-Driven Rain
06/22/16
ECD-545-MD with CD55 Option
We have replaced our ECD-545-MD CD55 product model from our product line with a CD55 option added to our ECD-545-MD.
See NEW installation instructions for the CD55 option
05/23/16
NEW 3HR Vertical Fire/Smoke Dampers
We are pleased to announce the addition of larger sizes for our Fire Dampers and Combination Fire/Smoke Dampers.
• 120" x 96" FSD-351 and FSD-352 - 3 hr, airfoil blade vertical fire/smoke damper.
• 60" x 48" and 30" x 96" FD-350 - 3 hr, airfoil blade vertical fire damper.
• 108" x 24" VFD-30 and VFD-30D - 3 hr, static and dynamic curtain vertical fire damper.
At this size, The VFD-30 is available in both galvanized or stainless steel and the VFD-30D is available in galvanized steel.
04/18/16
4" Vertical Blade ECV-445 Louver has Improved Performance and Costs Up To 50% Less
Our ECV-445 extruded aluminum louver offers exceptional protection against wind-driven rain under the most severe conditions and is ideally suited for high wind areas that are sensitive to wind-driven rain penetration. Updated performance includes:
Free Area at 42.9%
Class A at 50 mph AMCA 500-L
AMCA Certified for Water Penetration
The ECV-445 incorporates 45 degree vertical blades and is up to 50% less than our previous model. It is also AMCA Certified for Air Performance and Wind-Driven Rain as well as Water Penetration.
04/02/16
NEW XAV-545 Aluminum FEMA Grille Louver
Pottorff announces its new 5-1/2” inverted-V blade, aluminum grille louver. The XAV-545 is designed to FEMA 320 or FEMA 361 guidelines for storm shelters and safe rooms, it can withstand design loads ± 300PSF produced by extreme wind phenomena such as tornadoes and hurricanes. AMCA certified for Water Penetration and Air Performance.
Our XAV-545 rated grilles can withstand design loads of 300 PSF produced by extreme weather phenomena. They have been tested with impacts of 15 lb 2 x 4s traveling at 100MPH as per ICC 500. The inverted V blades mean high free area, excellent resistance to water penetration and very low airflow resistance while providing maximum protection against high winds and wind borne debris.
01/26/16
VFD-10D Curtain Style Fire Damper is the largest in the industry
Pottorff offers Best-in-Class performance with exceptional cost savings with our VFD-10D Series Dynamic Curtain Fire Damper. We are the only manufacturer with a multiple section dynamic curtain fire damper at 120” x 72” or 72” x 120” at 2000 fpm.
- VFD-10D-A - curtain style blades
- VFD-10D-B - out of the airstream curtain style blades
- VFD-10D-C - out of the airstream frame and curtain style blades
Pottorff currently has the largest single section dynamic curtain fire damper on the market and now adds to its roster the largest multi-section vertical dynamic curtain fire damper. This is a cost effective alternative to multi-blade fire dampers.
12/05/15
LIST louver information and selection tool
List, our louver information and selection tool, is a state-of-the-art computer based program that allows engineers and architects to select the right louver based on application and performance criteria.
"This software is extremely intuitive and easy to use. Within minutes I had several selections for a range of stationary and acoustical louvers that met all of my velocity and sizing constraints. . . "
Amanda Phillips, EIT, LEED AP
Mechanical Engineer
12/04/15
Pat Cockrum announced as Chairman of the Board on the AMCA Executive Committee
AMCA has announced the members who will serve on the AMCA Executive Committee for 2015-2016. Our President Pat Cockrum, will serve as Chairman of the Board on the committee. He has been on the committee for several years and has held previous posts of Secretary, Treasurer, Vice-President and President.
11/20/15
Pottorff gives code presentation during AIA Florida Road Show
Our Product Manager for Louvers, Peter Blaha, traveled to Orlando and Miami this month to give over 300 architects a presentation on the various codes that apply to louvers installed on Florida projects. The seminar was set up by AIA Florida and was sponsored by Pottorff.
10/28/15
Pottorff's ECD-745 horizontal blade louver now with improved performance
The ECD-745 horizontal blade louver offers exceptional protection against wind-driven rain under the most severe conditions and features the AMCA seal for Water Penetration, Air Performance and Wind-Driven Rain. Improved performance features include:
• Water Penetration: 1,218 fpm
• At 29 mph wind and 3 in/hr rainfall, the ECD-745 is 99.6% effective at 581 fpm core velocity
• At 50 mph wind and 8 in/hr rainfall, it is 99.2% effective at 493 fpm
10/27/15
ECD-545 and ECV-645 Now feature Florida Building Code (2014) approval
Our models ECD-545 and ECV-645 also feature the AMCA seal for Water Penetration. Air Performance and Wind-Driven Rain and are AMCA listed for 540 Impact Resistance and 550 High Velocity Rain Resistance
09/21/15
Pottorff announces its new 2" horizontal blade, wind-driven rain louver
Our new ECD-245 2” horizontal blade, wind-driven rain louver. It is AMCA certified and features Best-in-Class water penetration performance.
Free Area Velocity: 1172 fpm
Air Volume Delivered: 7744 cfm
Pressure Loss: 0.37 in.wg.
09/16/15
ECD-545-MD Installation Video
New video on installing the ECD-545-MD Miami-Dade louver with innovative anchorless installation system.
Watch video
09/14/15
Pottorff featured in the Fall issue of the Florida Caribbean Architect magazine
Our ECD-545-MD Miami-Dade louvers are featured in the Fall issue of the Florica Caribbean Architect magazine.
View this ad
08/03/15
ECD-545 now has AMCA certification
Our ECD-545 horizontal drainable blade louver is AMCA certified for Water Penetration, Air Performance and Wind-Driven Rain. It is also AMCA 540/AMCA 550 listed
07/31/15
No damper required for ECD-545-MD to pass AMCA 550
Our ECD-545-MD 5” Miami-Dade louver does not require a damper to pass AMCA 550 (high velocity, wind driven rain.
07/30/15
Pottorff showed at Florida AIA convention
The annual Florida AIA convention was held July 30-August 2, 2015 at the Boca Resort and Club in Boca Raton, Florida was a success. Our booth had lots of traffic and we made many new contacts.
