Sterilizers, Dryers, andPharmaceutical Ovens

GruenbergA Lunaire Company

Working into the wee hours of the night was never

a problem when Gruenberg developed his first

drying ovens. Nor is it today. Dedication to new

approaches remains a corporate passion.

GruenbergA Lunaire Company

Proven technologySince 1932, Gruenberg has designed and manufacturedhigh quality custom and standard pharmaceuticalsterilizers, dryers and continuous process ovens.

Today, pursuing a philosophy of uncompromisingperformance, Gruenberg has emerged as a leader inthe manufacturing of Class 100 and heat processingequipment worldwide, including isolators, barriersystems, clean room ovens and chilling tunnels.

ISO 9001 CertifiedThe Gruenberg quality system is certified to theprestigious ISO-9001 quality standard. Not surprising:

Gruenberg employees have always used aprogressive quality system to verify eachstage of construction. And, Gruenbergcontinues to research and test compo-nents and designs to improve perfor-mance. We are dedicated to bringing youthe latest in technology, performance, andreliability. Quality control is the criticalpath in the manufacture of Gruenbergpharmaceutical equipment.

Choose contemporary design without sacrificing old-world craftsmanship and attention to detail.

We machine stainless steelcasters here because noone else makes them.(Makes you wonder whatthe other guys use.)

GruenbergConsider the fact that

you can often get acustom oven designedand built by Gruenbergfor what others chargefor an off-the-shelfmachine.

Over the years,Gruenberg has evolved asa premier builder ofcustomer-specificapplications. Our experi-ence in designing customsystems translates intoreasonable prices.

The result is a superiorpiece of equipment thatgives more materialcontent, more long-termreliability, and moresatisfaction.

Gruenberg enjoys oneof the highest customerretention rates of anypharmaceutical ovenmanufacturer in theworld by offeringcomprehensive propos-als, realistic schedules,and timely deliveries.Effective service before,during, and after everypurchase has earnedGruenberg an extensive

list of satisfiedcustomers.

Exceptionalcraftsmanship,

proven reliability anddurability, and completebuild-to-order capabilityare just a few of thereasons to specifyGruenberg.

Chilling tunnels forhot-fill are an additionalproduct, as are a number ofcontinuous conditioning systems.

Full touch screenprogramming andmonitoring

When no off-the-shelfparts are available instainless steel,Gruenberg machinestheir own, as withthese door latches.

Or note the fully-adjustable hingeblocks, machinedfrom a block of304 stainless steel.

Radius corners andslope-to-drain arecombined in thisparticularlychallengingfabrication task.

Gruenberg usesfully welded heatertubes to keep allelectrical connec-tions exterior to thechamber.

Even belt guards areroutinely fabricatedfrom stainless steel.

SterilizersLaboratory, Cabinet, Truck InWhether standard or custom, every sterilizer providessimple operation, precise control, and even heatdistribution. Flexibility in options allows a custom unitto be built for standard prices.

CONSTRUCTIONThough flexible in design, Gruenberg sterilizers are rigidwhere it counts: in construction. All units are builtaround a welded structural steel frame for long termdurability. No panel joints are used. Instead, a unitized

construction is incorporatedto prevent heat loss andcontamination. Between theinner and outer walls, 4" ofhigh performance insulationhelps retain heat.

The exterior of the oven isconstructed of 16 and 18gauge 304 stainless steel witha #4 polish to withstandfrequent washdowns. Theinterior is constructed of304L, or if required, 316L. Allinterior seams are sealed bycontinuous heliarc welding.

Interior 3/4" radius corners are optional, along withother grades of stainless and finishes up to #8.

TEMPERATURE UNIFORMITYStandard sterilizers are rated for 250°C depyrogenation.Multiple heater banks are designed to bring the Ioad tosterilization temperature quickly and hold it economically.A digital proportioning controller will hold the tempera-ture with a uniformity of ±5°C. That’s 10°C tighter unifor-mity than the generally accepted CGMP of ±15°C.

AIRFLOWA high volume horizontal airflow is used for superiortemperature uniformity. Sterilizers are only shipped afterthe airflow tolerances have been finely tuned and checkedby a multi-point uniformity test that samples a minimumof 12 points within the chamber. Gruenberg uses a distinctperforated side wall that allows fine tuning of the airflow.

FILTRATIONTo keep the process chamber at class 100 quality, HEPAfilters are installed on the air intake, the exhaust and inthe recirculation wall.

The HEPA filters are a minimum 99.97% efficient at

Hot Air Sterilizers/Depyrogenation Ovens

0.3 microns. The intake HEPA filter prevents contami-nates from entering the sterilizer during operation. Theexhaust HEPA filter ensures that contamination willnot be drawn into the sterilizer as the cycle ends.

Side wall filters provide distinct advantages. Filtrationtakes place just before the air enters the sterilizationchamber so that class 100 conditions are ensured. Plus,they afford easy access to filters for validation andmaintenance.

ADDITIONAL FEATURESMost sterilizers are designed for pass-through opera-tion and are installed between sterile and non-sterileclassified areas. An automatic door interlock systemprevents unloading until the sterilizing and coolingcycles have been completed. Forced cooling helpsshorten the cool-down period.

The door and loading tracks are elevated so that aproper seal can be made at the bottom of the door.Wiper gaskets are not recommended because they cansweep particles into the sterilizer.

Each sterilizer is designed for easy use and mainte-nance. Side walls and loading tracksare easily removable forcleaning. The entire doorseals against a continuous,silicone P-gasket.

216 ft3 custom, flush frontsterilizer featuring a fully-automatic, pneumatically-powereddoor interlock mechanism that incorporatesa hidden latch system.

70ft3 standard sterilizer

Shown here is the non-sterileside of a typical truck-insterilizer. Two removable trucktracks on the processchamber floor allow easycleaning. Between the twotruck tracks are steel pegs.The steel pegs lock thetransfer cart and sterilizertogether while loading thetruck into the processchamber.

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Hot Air Sterilizers/Depyrogenation Ovens

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Controls

Gruenberg offers a broad selection of controls andcontrol systems. A typical control panel is shown onthis page. Additional controls are described in theoption section on page 12. The control panels can bemounted on the sterilizer or in a remote console.

Magnehelic or Photohelic Gauges- Pressure differentialindication is provided from our four locations: circulationfilters, chamber, intake filter, and exhaust filter.

Chart Recorder- Solid state electronic single-pen recorderis available with either 24-hour or 7-day recording and hasa 10" diameter circular chart and inkless pen. The recordersystem comes with a thermocouple temperature sensoraccurate to within .5% of range scale.

Programmable Temperature Controller: Multi-Segment-The programmable temperature controller with digital set,digital readout, and thermocouple sensor can function asa normal process control or execute any of eight setpointprofiles. Each profile can have six ramp and six soaksegments. Any number of profiles can be linked together.Accuracy: ±0.25 of scale range.

High-Limit Thermostat- The high limit thermostat has auser-defined preset limit. If the process temperaturereaches that preset limit, the high-limit thermostat will de-energize the heating system. To reactivate heating, thehigh-limit thermostat must be reset manually.

Main Power Disconnect Switch- For safe electricalmaintenance of the unit, a main power disconnect switch isinstalled on the access door of the control box. Thisnecessitates the power to be disconnected before allowingthe panel to be opened. Disconnects can be fused or non-fused and a circuit breaker may be specified, too.

Power Switch- Turns the power on or off.

Heat Switch- Turns heating elements on or off.

Alarm Silence- Turns off the alarm when alarm is activated.

Audible Alarm- Signifies a system malfunction.

Indication Lights- Provide information on the status of theprocess or if a problem should occur. Many configurationsare available.

Ammeters- Three ammeters, one for each phase, areprovided so that the heater banks can be easily monitored.If even a single heater should burn out, the loss will beindicated on the appropriate ammeter.

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FeaturesHot Air Sterilizers/Depyrogenation Ovens

Standard Features at a Glance

Frame: Unitized construction for durability andhandling (heavy-duty structural steelframework)

Exterior: Stainless steel type 304 with a #4 finish

Interior: Stainless steel type 304L with a 2-B finishand a continuously welded liner.

Temperature Range: Above ambient to 280°C

Uniformity: ±5°C @ 250°C typical

Insulation: 4" thick fiberglass6" thick fiberglass floor

Heating: Electric

Airflow: Horizontal for superior uniformity

Prefilter: On air intake, 40% efficient

HEPA filters: 99.97% efficient @ 0.3 micronsHEPA Filtered Air IntakeHEPA Filtered ExhaustRecirculation HEPA Filters

Electrical: All voltages available

Control Panel: Attached or remote-standing console

Side Walls & Ceiling: Easily removable for cleaning (no screws)

Gasket Retention: Brass nuts on stainless studs for rapid andeasy gasket replacement

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RemovableTruck Tracks

Bioseal

Control Panel

Intake HEPA Filter

Circulation Blower

DoorInterlocks

PerforatedDuct Walls

Exhaust HEPA FilterCirculation Motor

RecirculationHEPA Filter

Heater Elements

Truck

TOP VIEW

FRONT VIEW

SIDE VIEW

Changing of Hepa FiltersGruenberg engineers have designed an easy way toaccess the HEPA Filters for testing or replacement. TheHEPA filters are located behind a removable sidewall inthe interior of the sterilizer. Simply lift up on the

Hot Air Sterilizers/Depyrogenation Ovens

L55H8.3 280°C 20 30 24 48.75 38.5 54.5 7.5 8.3L55H13.7 280°C 24 38 26 52.75 46.5 56.5 15 13.7

C55H15.17 280°C 24 26 42 52.75 34.5 72.5 18 15.17C55H17.69 280°C 28 26 42 56.75 34.5 72.5 18 17.69T55H20.2 280°C 26 28 48 54.5 36.5 78.5 18 20.2T55H25.4 280°C 29 42 36 57.5 50.5 66.5 18 20.1C55H30.2 280°C 27 42 46 55.75 50.5 76.5 24 30.2T55H32 280°C 32 48 36 60.75 56.5 66.5 24 32

T55H43.9 280°C 43 34 52 71.75 42.5 82.5 30 43.9T55H45.5 280°C 36 42 52 64.75 50.5 82.5 30 45.5T55H52.52 280°C 30.5 42.5 70 59.25 51 100.5 30 52.52T55H63.7 280°C 44 41 57 72.75 49.5 87.5 36 63.7T55H76.3 280°C 47 61 46 75.75 70.5 76.5 45 76.3T55H79.4 280°C 44 52 60 72.75 60.5 90.5 45 79.4T55H89.3 280°C 45 52 66 73.75 60.5 96.5 45 89.3T55H93.3 280°C 40 72 56 68.75 80.5 86.5 45 93.3T55H109 280°C 43 80 55 77.75 88.5 85.5 45 109T55H110 280°C 70 44 70 104.75 52.5 100.5 54 110

T55H134.1 280°C 48 67 72 82.75 75.5 102.5 54 134.1T55H138.3 280°C 49 80 61 83.75 88.5 91.5 60 138.3T55H209.5 280°C 48 130 58 82.75 138.5 88.5 72 209.5T55H216 280°C 48 108 72 82.75 116.5 102.5 75 216

T55H245.4 280°C 57 120 62 91.75 128.5 92.5 90 245.4T55H277.3 280°C 72 96 78 106.75 104.5 108.5 108 277.3T55H335.9 280°C 62 120 78 96.75 128.5 108.5 108 335.9T55H364.5 280°C 92 125 60 126.75 133.5 90.5 126 364.5T55H582.6 280°C 56 214 84 90.75 222.5 114.5 144 582.6

handles of the sidewalland remove the panel.No tools are required.

The recirculation HEPAfilters are installed againsta heavy-duty stainlesssteel wall. The wall isreinforced by structuralsteel so that filter sealingsurfaces will remainsquare as the sterilizerreaches maximum temperature. The frame also addsextra support for clamping of the HEPA filters.

The HEPA filter has a silicone gasket that provides atight seal so that no particles shall bypass the HEPAfilter. A stainless steel C-channel holds the filter inplace. The clamping mechanisms are located against thefilter frames and do not interfere with the airflow.

StandardModels

Max.Temp.

Interior Dimensions

WidthInches

DepthInches

HeightInches

Exterior Dimensions*

WidthInches

DepthInches

HeightInches

KWCubic feet of

Interior ChamberCapacity

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Stainless Steel Wall

Stainless SteelClamping Channels

Stainless SteelHEPA Filter Frame

RemovableSide Wall

RemovableTruck Guides

*Note: The exterior dimensions listed above represent the cabinet width of each unit. Typically, add 24" to the cabinet width for the control cabinet, 14-36" to thecabinet height for the top mounted equipment, and 10-12" to the cabinet depth for the doors and door hardware.

DryersGruenberg manufactures granulation dryers from 15 to800 cubic feet of chamber capacity. Steam units arerated up to 90°C, and electric units are available up to260°C. Two types of circulation systems are standard:controlled recirculation and single-pass systems.

CONSTRUCTIONGranulation dryers, just like the sterilizers, are builtaround a welded structural steel frame for long-termreliability.

All interior surfaces are constructed of 100%continuously welded stainless steel for quick and easywashdowns. To simplify cleaning, both side walls areremovable, and as an option, the floor may be sloped toa drain. Radius corners are optional.

The exteriors can be either painted cold-rolled steelor stainless steel depending upon your needs. Betweenthe interior and exterior walls are over 3" of high-performance insulation.

AIRFLOWDistinct perforated walls provide for a superiortemperature uniformity of ±2°C. Every dryer is fullytested for airflow and temperature uniformity by amulti-point strip recorder prior to shipping.

CONTROLLED RECIRCULATIONControlled recirculation is the most common means ofhandling airflow in a granulation dryer. Heated air ispassed over the product; before some of the air isexhausted, much of it is recirculated, reducing energyconsumption. Temperature uniformity for controlledrecirculation is more stable than in single-pass systems.

SINGLE-PASS SYSTEMSingle-pass systems heat the air, filter it, pass it acrossthe load, then totally exhaust it. This system wasdeveloped for use with high alcohol or flammableliquid mixes.

HEPA FILTRATIONHEPA filters, 99.97% efficient, at 0.3 microns, areinstalled on the fresh air intake and the exhaust. TheHEPA filters have a stainless steel frame and vary inthickness depending on airflow. A disposable pre-filteris installed upstream of the intake HEPA filter toremove larger particles and to extend the life of theHEPA filter. As the dryer cycles off, the exhaust HEPAfilter prevents particles from entering back into theprocess chamber.

CONTROLSControls for granulation dryers are very similar tocontrols for the sterilizers pictured on page 3. Addi-tional controls are shown on page 12. Control panelscan be mounted on the side of the granulation dryeror placed in remote locations. Control panels aredesigned around their installation classification.

ADDITIONAL FEATURESTypically, two magnehelic gauges are suppliedto monitor the intake and exhaust HEPAfilters. Photohelic gauges can replace themagnehelic gauges as an option. Photohelicgauges will sound an alarm if the HEPA filtersare loaded beyond a preset pressure drop.

Door switches are standard on granulationdryers to prevent the oven from operatingwhen the door is opened.

An electrical disconnect on the controlpanel protects maintenance personnel by de-energizing the power when the electricalaccess door is open.

Granulation Dryers

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128 ft3 custom double bay granulation dryer

Granulation Dryers

T18H28 28 48 36

T18H29 26 32 60

T18H35.4 36 36 48

T18H36 36 36 48

T18H46 20 20 20

T18H55.76 33 40 73

T18H69.38 45 36 74

T18H80.9 30 59 79

T18H95.8 54 42 73

T18H105 54 42 80

T18H111.7 58 52 64

T18H129 75 48 62

T18H156 42 107 60

T18H182.25 81 54 72

T18H304 106 92.5 91.25

T18H374.5 92 107 72

T18H476 139 88 76

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Standard Features at a Glance

Frame: Unitized construction for durability andhandling (heavy-duty structural steelframework)

Exterior: Stainless steel type 304 with a #4finish typical

Interior: Stainless steel type 304L with a 2-B finishand a continuously welded liner

Temperature Range: Above ambient to 90°C steam or electric

Uniformity: ±2°C @ 80°C depending on circulationsystem

Insulation: 3" thick fiberglass

Heating: Steam coil with regulator, or low wattdensity electric heaters

Circulation: Recirculation external to chamber

Airflow: Horizontal for superior uniformity

Motors: Direct drive, (TEFC or XP depending onroom classification)

Prefilter: On air intake, 55% efficientHEPA filters:99.97% efficient with a 0.3 micronsHEPA Filtered Air IntakeHEPA Filtered Exhaust

Electrical: All voltages available

Control Panel: Attached or remote-standing console

Side Walls & Ceiling: Easily removable for cleaning (no screws)

Gasket Retention: Brass nuts on stainless studs for rapid andeasy gasket replacement

Typical DryerSizes

Interior Dimensions

WidthInches

DepthInches

HeightInches

Exterior dimensions are a function of options; generally add 16-18" to width,8 - 11" to depth, and 24 - 36" to height.

FRONT VIEW

SIDE VIEW

Circulation Motor

Intake HEPA Filter

Circulation Blower

Heater Elements

Control Panel

Explosion ResistantGranulation Dryers

Design requirements set by OSHA andNFPA 86A (Class A) must be added toany dryer processing alcohol, solventmixes, or other volatile atmosphereswithin the dryer. Class A dryers requirea specific exhaust rate to dilute vaporsand an increased KW rating to compen-sate for the increased exhaust. Explo-sion venting relief panels or pressure-relief door latches are necessary, alongwith monitoring pressure switches thatwould shut off the heating system if theexhaust rate were to drop belowacceptable limits.

Dryers operating in atmospheres thatare Class I, Group D, require explosionresistant housings for all electrical; static-eliminating belt drives; explosion resistantmotors, non-sparking hardware, purgedcontrol consoles, airflow switches andassociated high limits and shut-offs.

GRUENBERG CAN MEET THEFOLLOWING REQUIREMENTS:

Class I, Group DClass I, Group EClass I, Group FClass I, Group G

Consult the factory for any other Class or Group.

DryersGranulation Dryers

Custom explosion-resistant single pass dryersystem, Class one with HEPA filter air intake.

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A custom-built device to supplyconditioning air to a remote chamber.Class I, Division I Class.

Custom Granulation Dryers, Continuous Process,and Class 100 Sterilizers

36 64 196 96 80 32 355 130 80

48 74 220 96 120 45 460 200 120

Belt WidthInches

Overall Dimensions

WidthInches

DepthInches

HeightInches

Output

2 ml 10 ml 20 mlKW

GPMChilledWater

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Typical Dimensions/Outputs

Class 100 tunnel for glassware withcool-down zone.

Conveyor oven used to precisely andconsistently dehydrate pharmaceuticalsolutions. Make up air and recircu-lated air is HEPA filtered to achieveClass 100 environment. Vertical downairflow with adjustable velocity for finetuning of the process.

TrucksGruenberg offers many different sizes and types oftrucks, trays, and transfer carts. Standard trucks andtrays are shown here, but custom trucks and trays areavailable to fulfill any special requirements.

TrucksTrucks provide a quick and efficient way to load andunload products. Single, double, triple, and quadruplebay trucks are available to match any product load. Tosimplify loading and unloading, a front or side loadedtruck may be specified.

Standard truck construction is type 304 stainlesssteel with a 2B finish. Trays are often 316L. The frame,casters, and shelf guides are all stainless steel for easy,frequent washdowns.

Transfer CartsTrucks can be transported to and from sterilizers anddryers by transfer carts. The transfer carts keep thetrucks off the floor, reducing the amount of dirt orcontamination entering the process chamber. A springloaded latch and truck guides keep the truck secureduring transportation. Power-assisted transfer carts arealso available.

Transfer carts are constructed of type 304 stainlesssteel with a 2B finish. Two swivel and two stationary,non-marking casters are supplied to permit ease of

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Trucks, Transfer Carts and Trays

movement andcontrol.

Loading the truckinto the sterilizer ordryer is quick, easy,and safe. Simply line upthe truck guides of thetransfer cart with thetruck guides of theprocess chamber, thenlower the loadingramp located on thefront of the transfercart onto two steelpins on the processchamber floor. The transfer cart and process chamberare now locked together. Pull the spring latch on theback of the transfer cart to release the truck. Gentlypush the truck into the process chamber, raise theloading ramp, and close the door.

SOLID STAINLESSSTEEL TRAYSSolid trays are constructed ofany type stainless steel. Allseams are continuously heliarcwelded and ground smooth.

PERFORATED STAINLESSSTEEL TRAYSPerforated stainless steel traystypically have 3/8" diameterperforations on 11/2" centers.Larger and smaller sizedperforations are available uponrequest.

COVERED STAINLESSSTEEL TRAYSCovered stainless steel traysare used with both sterilizersand granulation dryers. Thecovers protect the productfrom contamination andwindage.

Trays

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Trucks, Transfer Carts and Trays

Trucks - Standard and Custom

Single-BayTruck(side loaded)

Single-bay trucks areused with small andmedium sized sterilizersand dryers for maxi-mum product loading.This truck can be usedin medium size units ifthe product is light inweight.

Triple-BayTruck(side loaded)

Triple-bay trucks are usedwith medium to largesterilizers and dryers. Thetruck shown here hasremovable side panels toprotect the product fromcontamination duringtransportation. Portablelaminar flow units arealso available to protectthe product duringtransport.

Double-BayTruck(front loaded)

Double-bay trucks canbe used with small,medium, and largesterilizers or dryersdepending upon productload. Shown here is afront loaded truck with atransfer cart.

TOP VIEW FRONT VIEW SIDE VIEW

Loading Ramp Handle

Type 304 Stainless Steel

TruckCatch

Phenolic Casters(2 rigid/2 swivel)

Loading Ramp

TOP VIEW FRONT VIEW SIDE VIEW

Locking Holes

Push Handle

Stainless Steel Casters

Stainless SteelTransfer Cart

Shelf (Tray)Slides

TOP VIEW FRONT VIEW SIDE VIEW

Removable Side Covers

Structural Frame

Shelf Guides

Options

Controls

PHOTOHELIC GAUGESPhotohelic gauges measure thepressure differential upstreamand downstream of the HEPAfilters. The photohelic gaugeshave a Iow and high set-point. Ifthe pressure differential should go above or below thesetpoints, an audible alarm will sound and indicationlight will be activated.

SINGLE AND DOUBLE PENCHART RECORDERSChart recorders provide visibledocumentation of the processtemperature and length of thecycle. The solid-state Honeywell4300 GP, electronic recorder isavailable with either a 24-hour or 7-day recording andhas a 10" diameter circular chart. The recorder systemcomes with a thermocouple sensor accurate to within.5% of range scale.

Double-pen recorders use different colored pensand indicate process temperature and product tem-perature. The recorders are chosen for reliability,accuracy, and user-friendly features.

MULTIPOINT STRIP RECORDERThe multi strip recorder records up to 30 locationsand prints the numbers in an easy-to-read format. All

These recorders and controllers are used because oftheir reliability, accuracy, performance, and userfriendly features. However, if a specific brand name ofcontroller, recorder, or option is required, it can easilybe incorporated.

PROGRAMMABLE TEMPERATURE CONTROL-LER: MULTI-SEGMENTThis microprocessor programmable temperaturecontroller has digital-set and digital-readout. Thecontrol can function as a normal process controller orit can execute any of eight set-point programs. Eachprogram can have six ramps and six soak segments.With only four push button keys, the control is easy to

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Typical Controls

program and hascontrol accuracy of±.25% of the scalerange.

12 PROGRAM CON-TROLLER (LINKING)The 8-program micro-processor also hasdigital set and digitalread-out. This controllercan perform 12 pro-grams with 16 segments per program. The programscan be linked together to extend certain capabilities.

Partlow 1462 digital program-mable temperature controller

Optional Equipment

the channels can be printed in6 seconds with an accuracy ofplus or minus .05% of scale. Therecorder can be programmed toread from one minute incre-ments to 24 hours. Additionalfeatures are the ability to behooked into an alarm packageand six color printing.

COMBINED RECORDERAND MICROPROCESSORTEMPERATURE CONTROLLERThe combined recorder andcontroller utilizes either a single ordouble-pen, 10-inch circular chart.A 24-hour or 7-day recorder isavailable. The microprocessorcontroller has 8 programs with sixramp segments and six soak segments. The controllerhas an LED display and an accuracy of ±25% of span.

ABORT SWITCHSwitch on control panel that cancels the rest of thecycle and goes into off mode.

RAMPSRemovable ramps can be provided for loading andunloading trucks.

DESIGN MODIFICATIONSpecific design requirements can be fullfilled quickly andcost effectively.

PORTSAny size port can be provided whether for DOP testing,thermocouple, or for any other reason. Stainless steel,sanitary fittings are used to seal off the ports when theyare not in use.

SPECIAL VOLTAGEStandard power is 230 volt, 60hz, single phase orthree phase. All other voltages and specialty formatsare available.

REMOTE MOUNTED CONTROL PANELSRemote control panels or freestanding control con-soles are available when control panels must be placedin different atmospheres or areas.

PRESSURE DIFFERENTIALCONTROL SYSTEMThe pressure differential control system consists oftwo differential pressure transmitters, one UniversalDigital Controller, one exhaust blower, one adjustable

Optional Equipment

frequency AC drive, and an electro-mechanical linearactuator for the intake pressure blower damper.

The differential pressure transmitters measure thedifference between the interior work chamber and thesterile and non-sterile rooms. The Universal DigitalController receives the outputs from the differentialpressure transmitters, and generates a 4-20 milliampoutput to the adjustable frequency AC drive, whichcontrols the drive motor of the exhaust blower.

AREA SPECIFIC LAMINAR FLOW MODULESGruenberg specializes in the design and manufacture ofarea-specific protection for filling lines, operationalstations, and accumulation or transfer areas that mustremain under class 100 air.

SOLVENT VENTING PACKAGEGruenberg includes properly sized exhausting system,high limit thermostat with main power back-up relay,airflow switches on the exhaust and circulation, purgetimers, and additional kilowatt compensation.

ISOLATOR COMPATIBLEAir tight chamber designs can be supplied for ovensinterfaced to isolators and barrier systems.

BIOSEAL OR SEALING FLANGE FILLERPANELSThese panels are used to create the absolute sealbetween a sterile and non-sterile area. The sealprevents biological agents or contaminated air fromentering the sterile side. Typically, the seal is usedwith a pass through design.

The filler panel is constructed of type 304stainless with a #4 polish. The panels can be con-structed of other materials to match the exterior ofthe dryer or sterilizer.

TRIM PANELSWhen sterilizers or dryers are installed within a walland an absolute seal is not required, a trim panel isinstalled. The trim panel connects the oven with thewall and is installed on the non-sterile side of a passthrough sterilizer.

The panel is constructed of type 304 stainlesssteel with a #4 polish as standard. Other materialcan be specified.

Panels

Building WallFull LengthClampingBars

Gasket

Cover Panel

Oven Wall

Ster

ile S

ide

Non

Ste

rile

Side

4 Quality StreetWilliamsport, PA 17701

Phone (570) 326-1755Fax (570) 320-0208

www.gruenberg.come-mail: gsales@lunaire.com

Custom designed explosion-resistant granulation dryerwith solvent monitor andbag-in, bag-out, HEPA filters

GruenbergA Lunaire Company

ISO 9001PJR Cert. No. 99-085