DAMPERS

POTTORFF ®

InnovativeSolutions for Today’s Life-Safety Hazards

Product QualityThe latest CAD systems and computer modeling programs are combined with decades of UL product reliability testing and field experience to ensure that the entire line of POTTORFF fire and smoke dampers satisfy the exacting standards of today’s fire-life safety systems. UL-555 & UL-555-S testing provides the nucleus for POTTORFF’s ongoing performance based testing. Maintaining an activeposition on UL’s Industry Advisory Counsel and AMCA’s engineering committees POTTORFF engineers incorporatetheir vast product, application and installation related knowledge to ensure that these test standards meet theincreasing reliability demands of today’s environment.Computer controlled manufacturing processes and dedicatedtooling guarantee that product specifications are repeatableand actuate. Engineering quality into every product is the foundation of POTTORFF’s seventy year tradition of customersatisfaction.

VersatilityPOTTORFF design professionals continuously evaluate,refine and expand product capabilities to satisfy the everexpanding requirements of the market place. Decades offocus has yielded an industry leading array of productsincluding: true-round fire-smoke dampers, four-wayinstallations, single side mounting angles, 3-hour ratings,grille mounted systems, and stainless steel fire-smokedampers. Offering an extensive variety of both internallyand externally mounted electric and pneumatic actuatorsPOTTORFF can satisfy even the most rigorous projectrequirements. In today’s fast paced environment installationflexibility is often the key ingredient to a successful project.POTTORFF combines flexible manufacturing, exceptionalproduct knowledge and innovative designs to meet thesedynamic challenges quickly and economically.

ExperienceFounded in 1928, POTTORFF has worked closely witharchitects, engineers, building code officials and installingcontractors to forge one of the most comprehensive andinnovative fire and smoke damper product lines in theindustry. Since the first combination fire-smoke damperswhere introduced nearly two decades ago, POTTORFFapplication and design engineers have utilized their fieldrespected expertise to deliver comprehensive solutions to critical environments. Regular interaction with building officials and code development authorities allows POTTORFF to maintain a leadership role in the area ofbuilding code and standards development. Drawing on anextensive array of UL based testing expertise POTTORFFregularly fulfills even the most demanding requirements.

70 Years of Quality, Versatility and Experience

LOS ANGELES

CHICAGO

DALLAS / FORT WORTH

PHILADELPHIA

NEW YORK CITY

SERVING YOU FROM...

2

Features and Options

Grille Mounted AccessSpecifically designed to reduce the installation cost of grille

mounted fire-smoke dampers, the Out of Partition (OP) andSide Panel (SP) designs provide direct damper actuator

service access by removing the grille or register. Thus, eliminating the costly fire-rated access panels required for

conventional grille mounted fire-smoke dampers. Mountingangles are also a thing of the past as a result of the innovated

flange system incorporated in these advanced designs.

POTTORFF ®

Factory Mounted Smoke DetectorPOTTORFF’s Factory Mounted Duct Smoke Detectors are UL and NFPAapproved and feature fully integrated electrical wiring with a single-pointpower connection. By integrating these products at the factory, POTTORFFeliminates costly installation, wiring and interface coordination betweeninstalling contractors.

No-Flow In-DuctSmoke DetectorsFor years duct mounted smokedetectors have required a minimumvelocity in order to operate properly.However, that has now all changed.This revolutionary No-Flow systemis UL and NFPA approved for factorymounted in-duct applications withvelocities ranging from 0 to 3,000 fpm (0 to 15 m/s).

Single-Side Mounting AnglesPOTTORFF’s exclusive Single-Side Mounting Angle design represents a new era in fire-smoke damper installation systems.Breaking from traditional thinking this innovative design only requiresmounting angles on ONE side of the partition. The ingenious cornerdesign allows this system to install either underneath or on top of thedrywall offering additional installation options and cost savings. Testedand approved in accordance with UL Standard 555 this unique systemis in full compliance with all building codes for wood stud, metal studor masonry installations.

DRS-30, HS-10 & PI-50 The optional PI-50 provides positive indication of damper blade position in bothopen and closed conditions and is an essential feature of an engineered smokemanagement system. The HS-10 incorporates a push button manual reset that

allows for fast easy reset of fire-smoke dampers after non-fire heat activation.Ideal for engineered smoke management systems, the DRS-30 combines the

remote position indication capabilities of the PI-50 with a two-temperature heatresponse system.

RCP-1Available with either a toggle switch or a security key, this single

station control panel provides visual indication of the damper bladeposition. The RCP-1 also allows for remote positioning and

emergency override control of fire-smoke dampers.

DRS-30 HS-10 PI-50

Out of Partition

Side Panel

3

Single High Temperature LinkIncorporating a single 350˚F(177˚C) fusible link toachieve the required smokemanagement control this system offers significant costsavings over conventionaltwo-temperature electric heat response systems by eliminating the need for costly override circuitry.

Low Amperage Direct Coupled Electric ActuatorIndependent certified testing by Intertek TestingServices (ETL) for continuouspower applications. Drawingless than 6 watts in the fullopen position these efficientactuators offer the highestdegree of reliability and life-safety. The direct coupleddesign improves control by eliminating the hysteresisassociated with conventionallinkage systems.

Airfoil Blade Smoke & Fire-Smoke Dampers

Airfoil BladesThe structurally

enhanced double skindesign of these units

feature one of the most efficient blade

profiles available. Byensuring smooth airflow

transitions across thedamper face, pressure

loss and noise are minimized.

SD-151

FSD-151

ETL Certified fo

r

Continuous Power

UL & NFPA

Approved

With low profile airfoil blades this high performance line is designed to satisfy the most demanding engineered smoke management systems with system pressures up to 4 in.wg. (1,000 Pa), dynamic closure ratings in excess of 4,000 FPM (20 m/s) and minimal pressure loss.

• FSD-151 – 11/2 hour, Class-I leakage

• SD-151 – Class-I leakage

PR

ES

SU

RE

DR

OP

IN IN

CH

ES

W.G

.

FACE VELOCITY IN FEET PER MINUTE

Performance With MotorInstalled Internally

Performance With MotorInstalled Externally

.01

.10

1.00

100001000100

Pressure Drop

Typical Performance CurveTested Per AMCA Standard 500; Figure 5.3:

Size Tested-36” x 36” (914mm x 914mm)Smaller Sizes Will Have Higher Pressure Drops

4

Triple-V Interconnected

BladesThe unique profile of

this blade system provides a metal-to-

metal, non-degradable UL Class-II seal

without the use of additional blade edge

seals. Both rugged andefficient this design

offers industry leading performance and

versatility.

Air Flow andMountingEvery POTTORFFSmoke or Fire-SmokeDamper is UL qualified for airflow in either direction.Flexibility is further enhanced by allowingthese units to install vertically, horizontally, right-side-up or upside-down.

SD-140Series

FSD-340Series

FSD-140Series

Triple-V Blade Smoke & Fire-Smoke Dampers

With rollformed triple-V grooved bladesand optional stainless steel constructionthis design is well suited for virtually anyengineered smoke management systemrequiring dynamic closure ratings of4,000 FPM (20 m/s) and pressures up to 4 in.wg. (1,000 Pa).

• FSD-141 – 11/2 hour, Class-I leakage

• FSD-142 – 11/2 hour, Class-II leakage

• FSD-143 – 11/2 hour, Class-III leakage

• FSD-341 – 3 hour, Class-I leakage

• FSD-342 – 3 hour, Class-II leakage

• FSD-343 – 3 hour, Class-III leakage

• SD-141 – Class-I leakage

• SD-142 – Class-II leakage

• SD-143 – Class-III leakage

POTTORFF ®

PR

ES

SU

RE

DR

OP

IN IN

CH

ES

W.G

.

FACE VELOCITY IN FEET PER MINUTE

Performance With MotorInstalled Internally

Performance With MotorInstalled Externally

.01

.10

1.00

100001000100

Pressure Drop

Typical Performance CurveTested Per AMCA Standard 500; Figure 5.3:

Size Tested-36” x 36” (914mm x 914mm)Smaller Sizes Will Have Higher Pressure Drops

5

InstallationVersatilityThe FSD-125R is truly a unique product. By integrating this true-roundfire-smoke damper with it’sfactory supplied retainingplates it is equally suitablefor installation in either acored round masonry orsquare framed openings.As an added advantage,the FSD-125R can beinstalled directly to themetal stud framing prior to the installation of drywall.

True-Round Smoke & Fire-Smoke Dampers

SD-25R

FSD-125R

POTTORFF’s true-round Smoke and Fire-Smoke Dampers feature superiorpressure loss performance over traditionalairfoil and triple-V bladed dampers.Coupled with factory supplied installationretaining plates these units are ideal forinstallation in engineered fire & smokemanagement systems where pressure lossis critical or where dynamic closure ratingsrequire 5,000 FPM (25 m/s) at pressuresup to 4 in.wg. (1,000 Pa).

• FSD-125R – 11/2 hour, Class-I leakage

• SD-25R – Class-I leakage

Air Flow andMountingQualified for airflow ineither direction andapproved for installationvertically, horizontally, right-side-up or upside-down these units can satisfy virtually any smokeor fire-smoke damper application utilizing roundduct systems.

Size RangeWith smoke damper sizes

from 6”-24” (152 - 610 mm) diameter and fire-smoke dampers

from 8”-24” (203 - 610 mm) diameters the POTTORFF true-round dampers

cover the widest range in the industry.

100001000100

.01

.10

1.00

PR

ES

SU

RE

DR

OP

IN IN

CH

ES

W.G

.

FACE VELOCITY IN FEET PER MINUTE

Pressure Drop

Typical Performance CurveTested Per AMCA Standard 500; Figure 5.3:

Size Tested-24” (610 mm) DiameterSmaller Sizes Will Have Higher Pressure Drops

6

Corridor Ceiling, Wall & Floor Fire-Smoke Dampers

InstallationWhether in a floor, wall or tunnel-type corridorceiling the flexibility of the FSD-170 reduces

installation costs byincorporating the most

diverse array of installation options

available in the industry today . . .

No Flow DetectorThis UL and NFPA approved, low profile,

0 to 3,000 FPM (0 to 15 m/s), in-ductsmoke detector is ideal for installation

at grille terminations where velocities areoften well below the 500 FPM (2.5 m/s)limit of traditional duct mounted smoke

detectors.

FSD-170 SeriesUL approval for installation in floors,walls, and tunnel-type corridor ceilingsmakes the FSD-170 the most versatilefire-smoke damper in the industry. Withrollformed triple-V grooved blades thisrugged design is specifically designedfor installation in engineered smokemanagement system with dynamic closure ratings of 4,000 FPM (20 m/s)and pressures up to 4 in.wg (1,000 Pa)where the maximum damper size doesnot exceed 24”x 24” (610 - 610 mm).

• FSD-171 – 11/2 hour wall & floor, 1 hour corridor ceiling Class-I leakage

• FSD-172 – 11/2 hour wall & floor, 1 hour corridor ceiling Class-II leakage

. . . When site conditionsinclude a non-rated suspended ceiling systembelow a tunnel-type corridor ceiling the FSD-170 can be turnedupside-down to allowdirect access to thedamper actuator throughthe tile ceiling without the added expense of afire-rated access panel.

POTTORFF ®

PR

ES

SU

RE

DR

OP

IN IN

CH

ES

W.G

.

FACE VELOCITY IN FEET PER MINUTE

100 1000 10000

.01

.10

1.00

Performance With MotorInstalled Externally

Performance With MotorInstalled Internally

Pressure Drop

Typical Performance CurveTested Per AMCA Standard 500; Figure 5.3:

Size Tested-24” x 24” (610mm x 610mm)Smaller Sizes Will Have Higher Pressure Drops

7

2824 N. Sylvania Avenue - Ft. Worth, Tx. 76111 - (817) 831-7038A Division of PCI Industries, Inc.

POTTORFF ®