News

06/03/2019

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.

04/30/2019

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".

04/05/2019

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

03/29/2019

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