HEMCO Corporation

  ISO 9001:2015 UL 1805  
EnviroMax Technical Enclosures
EnviroMax Enclosures Vented Enclosures Laminar Flow Enclosures
EnviroMax Enclosures EnviroMax Vented Enclosures EnviroMax Laminar Flow Enclosures
Unitized & modular designs for exhausting fumes for Robotic and Automated processes. Vented or HEPA filtered available. Designed to protect personnel from potentially hazardous fumes. Enclosure can connect to in house exhaust system Engineered to meet critical clean specifications by isolating equipment and procedures to protect processes.
EnviroMax Enclosures CCS Enclosures Accessories
EnviroMax Enclosures C.C.S Enclosures EnviroMax Accessories
EnviroMax Enclosures designed to protect processes from surrounding contamination. Enclosure designed for the elimination of potentially hazardous vapors or particulate. Custom support benches, work surfaces, HEPA filtration, gauges, light fixtures, ducting, and blowers for EnviroMax.
EnviroMax
EnviroMax Vented Enclosures protects personnel
  EnviroMax Diagram
A Vented Enclosure offered in Unitized & Modular Designs for exhausting fumes from Robotic & Automated processes
 Designed to protect personnel from potentially hazardous fumes, vapors and odors. The enclosure
 can connect to in-house exhaust system or a dedicated exhaust blower, to provide the internal  negative pressure  needed to safely remove hazardous fumes from the work area. Air supply into  the  enclosure is  supplied from the  surrounding lab environment.
EnviroMax Options
• Access on any or all sides • Multi-Plug strips • Exhaust blowers • Vertical slide or Hinged doors •  Base cabinets • Exhaust HEPA or Carbon filters • Other materials of construction • Anodized  aluminum &   stainless steel framing • Plumbing and electrical service fixtures • Airflow alarms •  Support benches & work   surfaces •
Contact us for custom enclosures built to your exact specifications
Unitized EnviroMax Vented Enclosure sizes 4’, 5’, 6’, & 8’wide by 30” & 36”deep by 46” high
Unitized Construction Sizes
Width Depth Height Cat .No.
48" 30" 48" 61041
60" 30" 48" 61051
72" 30" 48" 61061
96" 30" 48" 61081
48" 36" 48" 61042
60" 36" 48" 61052
72" 36" 48" 61062
96" 36" 48" 61082
Unitized design with depth of 30” and 36” to allow passage through doorways for easy on-site setup. Viewing from all four sides of the enclosed system. Access to interior of enclosure, available from any or all sides. Vent duct sized to airflow requirements. Pre-wired electrical connection to single point junction box. Under the bench storage and shelving designed to suit your requirements.
Note: Custom sizes are welcomed.
EnviroMax
Unitized EnviroMax Vented Enclosure
  Superstructure is welded steel framework with chemical resistant white powder coated finish.   Side and rear   walls are of clear acrylic or tempered glass. Ceiling is constructed of molded   composite resin with the  outlet  duct connection collar sized for desired air volume.   Slotted ceiling baffle allows air to flow evenly  through the  interior area into the exhaust
  plenum. The front of the enclosure features horizontal sliding  shatter-proof  clear viewing
  panels, (4) panels on (2) tracks allowing access at any position. Fluorescent  light is factory  
  installed and sealed behind a clear lens. Light switch is mounted on the front post. Provides  
  an economical and flexible work space that exceeds stringent contamination requirements.
   All electrical components are UL listed.
Modular EnviroMax Vented Enclosure sizes 6’, 8’, 10’ & 12’ wide by 48” & 60” deep by 46” high
Modular Construction Sizes
Width Depth Height Cat .No.
72" 48" 48" 62061
96" 48" 48" 62081
120" 48" 48" 62101
144" 48" 48" 62121
72" 60" 48" 62062
96" 60" 48" 62082
120" 60" 48" 62102
144" 60" 48" 62122
Modular design with depth of 48” or 60” requires on-site assembly prior to setup and vent ducting. Pre-wired electrical connection to single point junction box. Work surface and support benches and cabinets sized to specifications. Provides an environment free of contamination for sensitive processes.
Note: Custom sizes are welcomed.
EnviroMax
Modular EnviroMax Vented Enclosure
  Superstructure is welded steel framework with chemical resistant white powder coated
   finish. Side and rear  walls are of clear acrylic or tempered glass. Ceiling is constructed of
   molded composite resin with the outlet  duct connection collar sized for desired air volume.
   Slotted ceiling  baffle allows air to be drawn out evenly  across the width of the interior into
   the exhaust plenum. The front of the enclosure features horizontal sliding  tempered
   glass panels, (4) panels on (2)  tracks allowing access at any position. Fluorescent light
   is factory installed and sealed  behind a clear lens. Light switch is mounted on the front   
   header panel. All electrical  components  are UL  listed.
EnviroMax Sash Options
Horizontal Sashes Hinged Moving sashes Vertical Sashes

HORIZONTAL SASHES The standard sash for EnviroMax. The maximum sash opening for the horizontal sash is 1/2 that of the vertical sashes. The smaller opening, means less air exhausted resulting in energy savings.

OPTIONAL HINGED SASHES Optional sash for EnviroMax. The sash may be hinged vertical rising or horizontal open for maximum access thru the fume chamber.

OPTIONAL COUNTER BALANCED VERTICAL SASHES The optional sash for EnviroMax. The sash may be lifted to the completely open position for maximum access through the fume chamber. Sash stops available.

EnviroMax HEPA Filtered Laminar Flow Enclosures
EnviroMax
 

EnviroMax HEPA filtered 96” wide X 48’ deep X 60”’ high horizontal sliding doors front & rear,hinged right & left side doors, heavy duty support table with seismic levelers

 

Modular EnviroMax HEPA filtered laminar flow enclosure, sliding doors on front, size: 120”wide X 48”deep X 60” high, mobile table 30” high with epoxy shelf

HEPA Filtered Clean Work Enclosures Laminar Flow Benches protects processes
EnviroMax
A HEPA Filtered Enclosure offered in Unitized & Modular Design for Class 100 Clean Work Enclosure
 Specifically engineered to meet critical clean specifications by isolating equipment and  procedures. The HEPA  filtration eliminates particles 0.3 or larger to an efficiency of 99.995%,  class 100 laminar airflow  maintains a sterile work zone. Filters and lighting are conveniently  changed from inside the enclosure.
 Optional U.V. lighting, anti-static and grounding options are available.
EnviroMax HEPA Filtered Options
• Access on any or all sides • Multi-plug strips • Magnehelic gages • Cord port • base cabinets •  Other materials   of construction • Anodized aluminum & stainless steel framing • Electrical and
  key lock services • Support benches & Work surfaces •
Contact us for custom enclosures built to your exact specifications
Unitized EnviroMax HEPA Filtered Clean Workstation. Sizes are 4’,5’,6’, & 8’ wide by 60” high
Unitized Construction Size
Width Depth Height Cat .No.
48" 30" 60" 63041
60" 30" 60" 63051
72" 30" 60" 63061
96" 30" 60" 63081
48" 36" 60" 63042
60" 36" 60" 63052
72" 36" 60" 63062
96" 36" 60" 63082
Unitized design with depth of 30” and 36” to allow passage through doorways for easy on-site set-up. HEPA filters provide sterile clean airflow through work area with air returned to room space. Pre-wired electrical connection to a single point junction box. Work surfaces & support benches see below.
Note: Custom sizes are welcomed.

EnviroMax

Unitized EnviroMax Specifications Clean Workstation
 Superstructure is welded steel framework with chemical resistant white powder coated   finish. Side and  rear walls are of clear acrylic or tempered glass. The front comes   equipped  with horizontal slide windows  with air outlet slots on sides and front to
  maintain  positive  pressure. HEPA filters are ceiling mounted in  the enclosure and   designed to maintain a  minimum of class 100 environment. HEPA filters are 99.99%   efficient at .3  micron HEPA  filter module has an integral fan, prefilter, and speed
  control. Fluorescent  lighting is  provided, switches are located on the front post.
  Provides an economical and  flexible work  space that exceeds stringent
  contamination requirements. All electrical  components are  U.L. listed.
Modular EnviroMax HEPA Filtered Clean Workstation. Sizes 6’, 8’, 10’& 12’ wide by 48” & 60” deep by 60” high
Modular Construction Sizes
Width Depth Height Cat .No.
72" 48" 60" 64061
96" 48" 60" 64081
120" 48" 60" 64101
144" 48" 60" 64121
72" 60" 60" 64062
96" 60" 60" 64082
120" 60" 60" 64102
144" 60" 60" 64122
Modular design with depths of 48” & 60” for on-site assembly prior to setup and electrical connection. HEPA filters provide sterile clean airflow through work area and returned to room air space. Pre-wired electrical connection to single point junction box. Under the bench storage and shelving designed to suit your requirements.
Note: Custom sizes are welcomed.
EnviroMax
Modular EnviroMax Clean Workstation Enclosure
 Superstructure is welded steel framework with chemical resistant white powder coated finish.  Side and rear  walls are of clear acrylic or tempered glass. The front comes equipped with  horizontal slide windows with air  outlet slots on sides and front to maintain positive pressure.  HEPA filters are ceiling mounted in the  enclosure and designed to maintain a minimum of  class 100 environment. HEPA filters are 99.99% efficient  at .3 micron. HEPA filter module has  an integral fan, prefilter, and speed control. Fluorescent lighting is  provided Switches are  located on the front post. All electrical components are UL listed.
EnviroMax Sash Options Click for Maintenance Manual
Horizontal Sashes Hinged Moving sashes Vertical Sashes

HORIZONTAL SASHES The standard sash for EnviroMax. The maximum sash opening for the horizontal sash is 1/2 that of the vertical sashes. The smaller opening, means less air exhausted resulting in energy savings.

OPTIONAL HINGED SASHES Optional sash for EnviroMax. The sash may be hinged vertical rising or horizontal open for maximum access thru the fume chamber.

OPTIONAL COUNTER BALANCED VERTICAL SASHES The optional sash for EnviroMax. The sash may be lifted to the completely open position for maximum access through the fume chamber. Sash stops available.

C.C.S. Floor Mounted Enclosures

Features HEPA filtered air supplies and HEPA filtered exhaust air, to ensure a clean work zone free of contamination, protects work & environment. A safe change filter housing can be incorporated into the system if required.

CCS

Floor mounted 96” wide X 96” deep X 108” high HEPA filtered supply & HEPA filtered exhaust

 

Mobile Containment Control Systems 72” wide X 96” deep X 108” high, HEPA supply & HEPA exhaust air

Containment Control Systems provide enclosures for safe dispensing of powders to meet COSSH and GPM requirements. The C.C.S. can be designed to eliminate potential hazardous vapors or particulate where recirculation is not an option...

• The C.C.S. is designed for the elimination of potentially hazardous vapors or
   particulate in a non-recirculating exhaust system.

• Standard sizes are 6’ X 4’, 6’ X 6’, 8’ X 4’,and 8’ X6’.
   Sizes can be customized to meet your laboratory needs.

• Fluorescent lighting, fans, gages, controls and electrical are provided.

• Floor mounted containment booths are available in either unitized (pre-assembled)
  or modular (assembled on site) construction.

• On the front of the unit is a clear vinyl strip curtain that allows easy access to
  move pallets or drums in and out. An air-gap underneath the vinyl strip
  curtain ensures an inward flow of air, that sweeps across the floor.

• Extraction fans are automatically controlled to ensure near constant air flow
   in-order to compensate for filter loading.

CCS

Stationary Containment Control Systems 48” wide X 72” deep X 96” high, HEPA exhaust protects work and the environment

EnviroMax Bench Stands & Worksurfaces
• Available in 4’, 5’, 6’ & 8’ widths. Depths of 30” & 36”.

• Tested to 2000 lb. load capacity.

• Adjustable telescoping 2” square steel legs adjust
  to 28”, 30”, 32” & 34” heights.

• Sturdy dual locking bolts on each leg.

• Height adjustable leveling legs on all four legs.

• Standard color: Lab White,
  (optional colors are available as required)

• SEFA Certified

• Black Phenolic Worksurface (not included)

Tables

Tables
Depth “B” Heavy Duty Tables
Width“A”
48” 60” 72” 96”
30” 54831 56031 57231 59631
36” 54832 56032 57232 59632
Epoxy Worksurfaces
30” 20425 20525 20625 20825
36” 20435 20535 20635 20835
Phenolic Worksurfaces
30" 20428 20528 20628 20828
36" 20438 20538 20638 20838
Casters (4) Heavy Duty, with 2 locking Cat.No. 54444

T - Frame Mobile Tables

The table is adjustable from 30 to 36 inches in height. Is is of welded steel construction with a phenolic resin work surface.

 Mobile table is an ideal lab cart and can accommodate:

 • MicroFlow I, II & III Workstations

 • Demonstration Hoods

 • VSE Vented Safety Enclosures

 • Table Top Fume Hoods

 • Welded all steel construction, chemical resistant
    epoxy powder coated finish color white.

 • (2) locking casters & (2) Non-locking Casters included

 • Phenolic resin worksurface

Mobile Table 36” wide 50318
Mobile Table 48” wide 50418
Tables
Magnehelic Gauge Options
MiniHelic Gauge
Minihelic Gauge
Gauge monitors the pressure across the HEPA filter. Gauge conveniently mounts on the fume hood or on the filter housing. Measure range is from 0 to 2.0” wg. Gauge is 3” dia. accurate within 5%

Cat. No. 51300

Magnehelic Gauge
Magnehelic Gauge
Gauge measures static
pressure across the HEPA
filter. Can mount on the fume
hood or the filter housing.
Range of measurement is
from 0 to 2”wg. Gauge is 5”
dia. accurate within 2%.

Cat. No. 51301

Mini Photohelic Gauge
Mini Photohelic Gauge
Series MP Mini-Photohelic differential pressure gauge with two SPDT switching set points, is designed to measure and control positive, negative, or differential pressures consisting of noncombustible and non-corrosive gasses. Gauge is 3” dia.

Cat. No. 51302

Digihelic Gauge
Digihelic Gauge
Series DH3 Gauge allows selection of pressure, velocity, or volumetric flow operation. Programming is easy using menu keys to access 5 menus which provide access to security level, selection of pressure, velocity of flow operation, and selection of engineering units. Gauge is 3” dia.

Cat. No. 51303

Fan Powered HEPA Module in sizes: 24” X 24”, 24” X 48”, 24” X 72”

HEPA filter module

• Module is 99.99% efficient.@ 0.3 micron HEPA filter,with 90 FPM @ initial    0.47 w.g., 115v low watt A/C, 60Hz 1ph, includes prefilter, on/off/variable speed control, powder coated steel housing.

• HEPA filters can be changed from inside the enclosure, without removing the unit from the ceiling, Can be ordered with optional integral lighting.

Filter units feature an upstream gel channel on the final filter which provides a leak-free seal between the filter and the housing.

Size With Lights Without Lights
24" X 24" 50122 50322
24" X 48" 50124 50324
24" X 72" 50126 50326
Explosion Proof Module Explosion Proof module

Unit features a 24” X 48”, 99.99% efficient HEPA filter, prefilter, spark resistant fan, filter change from the inside of the enclosure.

Cat. No. 50424

 

HEPA Exhaust (Ductless)
HEPA Exhaust

Reverse flow HEPA filter module draws air out through the HEPA filter and discharges air back to lab. 24” X 48” 99.99% efficient HEPA filter

 

Fan Powered HEPA Module
Size With Lights With Out Lights
24" X 24" 50232 50332
24" X 48" 50234 50334
Replacement Filters
Replacement Filters Description Cat. No.
Prefilter, 30% efficient 20” X 20” X 1” 52190
HEPA filter 99.99% efficient (Inside Replaceable)
(for 24” X 24” module)
52201
HEPA filter 99.99% efficient (Non Inside Replaceable) (for 24” X 24” module) 52070
HEPA filter 99.99% efficient (Inside Replaceable)
(for 24” X 36” module)
52214
HEPA filter 99.99% efficient (Non Inside Replaceable) (for 24” X 36” module) 52013
HEPA filter 99.99% efficient (Inside Replaceable)
(for 24” X 48” module)
52200
HEPA filter 99.99% efficient (Non Inside Replaceable) (for 24” X 48” module) 52090
HEPA or Carbon Exhaust (Ducted)
HEPA or Carbon Exhaust ducted

Housing features a hinged access door for either HEPA or carbon filter change out. For exhaust requirements to 1000 cfm. Housing is installed on roof of enclosure.

Fan Powered HEPA Module
Size Housing with Filter Replacement Filter
HEPA Filter 50189 50095 24" X 24" X 12"
Carbon Filter 50298 52101 24" X 24" X 12"
Prefilter ctn of (6) -- 52001 24" X 24" X 12"

EnviroMax Electrical Options

Vapor Proof LightingFluorescent Lighting
Standard 4’ T-5,(2) bulb, 115V, with bulbs changed from the outside. Bulbs are
not included. UL listed

24”Cat. No. 50224
36” Cat. No. 50236
48” Cat. No. 50248

Vapor proof Lighting
Fluorescent fixture,(2) tube T-8, 115V, with white steel reflector and changed from the outside. UL listed. 48”
Cat. No. 50348

Explosion Proof Light

Explosion-Proof Light Std for use in
hazardous
locations. 115V or 230V. bulb not included. Factory
installed but not wired. UL listed. Class I Div II, Groups A,B,C,D, Class II Div II Groups F&G.
Cat. No. 50034

Explosion Proof Light

Explosion-Proof Fixture
For use in hazardous locations.
Gray, two coat epoxy finish with easily removed prismatic globe. Accepts long neck bulb up to 300 watts, (bulb not included)
115 / 230V. Factory mounted, not wired. UL listed. Class I
Div I Group C, D, Class II Div I Group E, F & G
Cat. No. 50038

Multi-Plug Chase
Anodized aluminum raceway can be supplied with a variety of electrical or data services.

• Specify length, type of plug, quantity of plugs, type of data outlet.

Multi plug chase

 

Electrical Pedastal Boxes

Electrical Pedestal Boxes
Brushed cast aluminum box with stainless steel cover. Please specify desired location of pedestal box.

  Single Gang Double Gang
Single Face
Double Face Single Face
Double Face
Duplex/115 V/15a 50131S 50131D 50031S 50031D
Single/230 V/20a 50132S 50132D 50032S 50032D
GFI Duplex/115 V/20a 50135S
50135D 50033S 50033D
One Duplex and One Single / 250 V/20a 50034S 50034D
UV Lighting

UV Ultraviolet Lighting for use in hazardous locations. Single tube 115V or 230V. UL listed. Polished stainless steel reflector
Cat .No. 50348

Duplex Receptacle Single Receptacle GFI Duplex Data Port
Duplex Receptacle
115V single phase receptacle. Installed on front column of fume hood. Includes junction box and cover plate. UL listed.
amps Cat. No.
15 amps 50029-1
20 amps 50029-2
Single Receptacle
230V single phase receptacle. Installed on front column of fume hood. Includes junction box and cover plate. UL listed.
amps Cat. No.
15 amps 50030-1
20 amps 50030-2
GFI Duplex
115V consists of combination ground fault interrupters, 3-wire polarized grounded. Includes junction box & cover plate.
amps Cat. No.
15 amps 50048-1
20 amps 50048-2
Data Port
Cat 6, 10 gigabit ethernet, (2) port fixture. Installed on front column. Cabling not included.
Cat No. 50053
Plumbing Fixtures
Keycock

Keycock
Fixture includes turret and shank connection.

Single Outlet 50014
Double Outlet 50014-2
Triple Outlet 50014-3
Quad Outlet 50014-4
Mixing Faucet

Epoxy or Sinks
Chemical resistant sinks are molded with integral flanges allowing drop-in mounting. Sinks include 1 1/2” IPS threaded outlet. Please specify location in counter top layout of A and B dimensions.

Epoxy Resin Sinks
A B Depth Cat. No.
9” 6” 6” 42021
16” 12” 8” 42022
18” 15” 11” 42026
24” 16” 8” 42027
Epoxy Sink

Deck Mounted
Mixing Faucet
Hot and cold water faucet.
6” gooseneck. 3/8” NPT.
Cat. No. 50026

EnviroMax Ducting Accessories
Ducting and accessories are chemical resistant and easy to install
Flexible and Rigid PVC Ducting 4” 6” 8” 10” 12” 14”
Flexable Ducting

1. Flexible Ducting neoprene impregnated fiberglass reinforced with steel helix wire. Standard 12’ lengths. Each piece includes two strap clamps.

Cat. No.
80051

Cat. No.
80052

Cat. No.
80053

Cat. No.
80054

Cat. No.
80055

Cat. No.
80056

PVC Rigid Ducting

2. PVC Rigid Ducting chemical resistant for
permanent installations. Standard 10’ lengths
with straight ends.

Cat. No.
82004

Cat. No.
82006

Cat. No.
82009

Cat. No.
82011

Cat. No.
82013

Cat. No.
82015

PVC Coupling

3. PVC Coupling required to connect straight sections.

Cat. No.
82147

Cat. No.
82149

Cat. No.
82153

Cat. No.
82157

Cat. No.
82159

Cat. No.
82160

PVC 90 degree Elbow

4. PVC 90 degree Elbow used in order to offset obstacles. Has belled ends for duct connections.

Cat. No.
82060

Cat. No.
82061

Cat. No.
82063

Cat. No.
82066

Cat. No.
82068

Cat. No.
82069

PVC 45 degree Elbow

5. PVC 45 degree Elbow used in order to offset obstacles. Less static pressure loss than a 90 degree elbow. Has belled ends for duct connections.

Cat. No.
82082

Cat. No.
82083

Cat. No.
82085

Cat. No.
82087

Cat. No.
82089

Cat. No.
82090

PVC 45 degree WYE

6. PVC 45 degree WYE lateral for joining common ductwork in multiple hood designs. Branch diameter may be sized to 2” to 4” smaller than main diameter. Has belled ends for duct connections.

Cat. No.
82216

Cat. No.
82218

Cat. No.
82226

Cat. No.
82229

Cat. No.
82233

Cat. No.
82234

PVC Tee

7. PVC Tee used in manifold exhaust
systems. Has belled ends for duct
connection.

Cat. No.
82034

Cat. No.
82036

Cat. No.
82038

Cat. No.
82040

Cat. No.
82044

Cat. No.
82046

PVC Butterfly Damper

8. PVC Butterfly Damper modifies cfm
for single or multiple hood arrangement.
Has belled ends for duct connection.

Cat. No.
82450

Cat. No.
82452

Cat. No.
82454

Cat. No.
82456

Cat. No.
82458

Cat. No.
82460

PVC Blast Gate Damper

9. PVC Blast Gate Damper a gate that
slides in and out to control cfm. Has
belled ends for duct connection.

Cat. No.
82369

Cat. No.
82371

Cat. No.
82373

Cat. No.
82375

Cat. No.
82377

Cat. No.
82379

PVC Rain Skirt

10. PVC Rain Skirt slips over straight pipe
on roof to slope water away from cutout.

Cat. No.
82328

Cat. No.
82330

Cat. No.
82332

Cat. No.
82334

Cat. No.
82336

Cat. No.
82337

PVC Vent

11. PVC Vent outlet for horizontal
venting through wall or window. Angled
end prevents rain from entering. Male connector included.

Cat. No.
80074

Cat. No.
80076

Cat. No.
80077

Cat. No.
80078

Cat. No.
80079

Cat. No.
80080

Zero Pressure Weather Cap

12. Zero Pressure Weather Cap
discharges fumes vertically away from roof. Self-draining. Minimal static pressure loss. This is the recommended weather cap.

Cat. No.
82350

“A”=16”

Cat. No.
82352

“A”=24”

Cat. No.
82354

“A”=32”

Cat. No.
82356

“A”=40

Cat. No.
82358

“A”=48”

Cat. No.
82359

“A”=56”

Round to Round Transition

13. Round to Round Transition to smaller
duct diameter.

Cat. No.
82613

4"-6"

Cat. No.
82615

6"-8"

Cat. No.
82617

8"-10"

Cat. No.
82619

10"-12"

Cat. No.
82620

12"-14"

Cat. No.
82621

14"-16"

EnviroMax Enclosure Blowers
A complete line of belt and direct drive exhaust blowers that are chemical resistant & available in standard and explosion-proof models. HEMCO blowers are designed to operate effectively and efficiently to remove noxious & hazardous fumes. Standard 115V 60Hz & international electrical configuration of 220V 50Hz AC available.
Blower Recommendations

1. Blowers should be mounted on the roof in-order that the  ducting  leading to the blower inlet is under negative static  pressure. If exhaust blowers are mounted inside the  building, all ducting connected to the blower outlet will be  under positive static pressure, if a leak were to develop in  the section of the duct inside the building, toxic and or  hazardous fumes could be forced out of the ductwork and  into that area of the building.

2. To achieve the lowest practical noise level in the exhaust  system, we suggest that the following measurements be  used when there is no conflict with other specifications of  the system:

a. Use vibration isolators or mounting blower exhaust  assembly.

b. Install a blower fan that will deliver the correct CFM and  static pressure with the lowest practical impeller wheel  RPM. If possible, use a duct size large enough to keep duct  velocity under 1800 FPM velocity.

c. Use a flexible connection at the fan inlet to isolate  mechanical transmission of noise from the ducting  between the hood and the exhaust blower.

 

d. Exhaust blower system should be designed with the fewest  possible elbows or other fittings. Use radius type elbows &  avoid using square elbows. Use gradual tapered transitions  where necessary, & avoid abrupt changes in configuration or  cross sectional area.

3. When ordering an exhaust blower, specify the orientation of  discharge desired. Vertical up blast discharge is the most  common and will be supplied unless otherwise specified.

4. All fans are shipped with clockwise rotation when viewed  from the motor end of the assembly.

5. For normal usage, the standard for both the blower housing  and impeller wheel is epoxy coated.

6. Blowers used for hood exhaust at altitudes above 1,000 feet,  may require a correction factor to provide the correct CFM and  static  pressure.

Contact factory for details relating to your specific application.

Epoxy Coated Steel Blower Belt Drive
Belt Drive Blower Standard (STD) belt drive steel blower and impeller wheel are epoxy coated for superior chemical resistance. Explosion-proof blowers (EXP) have epoxy coated, non-sparking aluminum impeller wheel. V-belt drive and adjustable pulleys permit field balancing. Seven discharge positions to suit installation. Weather housing is furnished. Motor has thermal overload protection. Specify: 115 V single phase, 230 V single phase, 230/460 V three phase or 208 V (consult factory). 1 year manufacturer’s warranty
Catalog Number and Static Pressure
cfm A
Inlet
Diameter
B
Outlet
Size
1/2” Static Pressure 3/4” Static Pressure 1” Static Pressure 1 1/2” Static
Pressure
HP STD EXP HP STD EXP HP STD EXP HP STD EXP
296 8 7/8” 10 1/8” x 4 1/8” 1/4 51701 51801 1/4 51702 51802 1/4 51703 51803 1/4 51704 51804
474 8 7/8” 10 1/8” x 4 1/8” 1/4 51705 51805 1/4 51706 51806 1/4 51707 51807 1/2 51708 51808
652 8 7/8” 10 1/8” x 6 3/8” 1/2 51709 51809 1/2 51710 51810 1/2 51711 51811 1/2 51712 51812
800 8 7/8” 10 1/8” x 6 3/8” 1/2 51713 51813 1/2 51714 51814 1/2 51715 51815 3/4 51716 51816
914 9 7/8” 11 1/2” x 8 1/4” 1/2 51717 51817 3/4 51718 51818 -- -- -- -- -- --
1044 9 7/8” 11 1/2” x 8 1/4” 1/2 51719 51819 1/2 51720 51820 1/2 51721 51821 -- -- --
1175 9 7/8” 11 1/2” x 8 1/4” 1/2 51722 51822 1/2 51723 51823 3/4 51724 51824 -- -- --
1240 9 7/8” 11 1/2” x 8 1/4” 1/2 51725 51825 1/2 51726 51826 3/4 51727 51827 3/4 51728 51828
1240 11 7/8” 13 3/8” x 8 1/4” 1/3 51729 51829 1/2 51730 51830 -- -- -- -- -- --
1506 11 7/8” 13 3/8” x 8 1/4” 3/4 51731 51831 3/4 51732 51832 3/4 51733 51833 -- --  
1771 11 7/8” 13 3/8” x 8 1/4” 1 51734 51834 1 51735 51835 1 51736 51836 1 1/2 51737 51837
Belt Drive Blower
Epoxy Coated Steel Blower Direct Drive
Direct Drive Blower Direct drive steel blower and impeller wheel are epoxy coated for superior chemical resistance. Explosion proof blowers have epoxy coated non-sparking aluminum impeller wheels. Motor is 115V, 1 phase and has thermal overload protection. 1 year manufacturer’s warranty
Catalog Number and Static Pressure
A
Inlet
Diameter
B
Outlet
Size
HP STD EXP 1/4” SP 1/2” SP 3/4” SP 1” SP
cfm cfm cfm cfm
6” 7” X 4-3/8” 1/6 51177 51178 565 515 440 300
8” 8-3/4” X 5-7/16” 1/3 51179 51180 935 875 800 712
9” 10-1/8” X 4-1/8” 1/2 51181 51182 1050 980 920 850
9” 10-1/8” X 5-1/8” 3/4 51183 51184 1260 1220 1180 1100
Direct Drive Blower
Standard motors are 115V, 60Hz / 1 phase. Explosion proof motors are 115/230V, 60Hz, 1 phase. Other voltage, hertz, and phase motors are available.
Fume Hood Exhaust Blowers Ordering Info
HEMCO offers a complete line of chemical resistant non-metallic exhaust blowers in belt drive or direct drive options in standard or explosion proof models. Ideal for applications where corrosion resistance is critical. These blowers are available in polypropylene or fiberglass construction.
Blower Recommendations

1. It is recommended that exhaust blowers be located at the
 end of the ducting which is typically roof mounted. This
 ensures a negative pressure through out the ventilation
 system. However for applications where the duct is going  directly out through a wall above a fume hood, one option is  to have a fiberglass direct drive blower installed in the top of  the fume hood. By having the blower internally mounted,
 the  installation is simplified and convenient for duct
 connection and servicing. However there would be an
 airflow sound  element associated to having the blower
 hood mounted.


2. By keeping the exhaust duct as short and as straight as  possible, the total resistance will be reduced and by keeping  the diameter of the duct correctly sized to the flow volume,  noise and static pressure can be reduced.

 

3. Blower wheels for polypropylene and fiberglass blowers
 are polypropylene.

4. Vibration isolators are recommended when mounting the
  blower assemblies

5. HEMCO recommends that a sash stop be installed on
   the fume hood to limit the sash height for operation.
   By having stop at a half open position, the total CFM
   can be reduced by  50%; thus by reducing the volume,
   energy loss, duct diameter, motor and blower size,
   and sound is reduced.

Blower Description
UniFlow SE & LE Fume Hoods
Hood
Width
Hood
Depth
Full
Open cfm
1/2
Open cfm
36” 30” 438 241
48” 30” 772 385
60” 30” 938 474
72” 30” 1162 592
96” 30” 1613 800
UniFlow CE Fume Hoods
Hood
Width
Hood
Depth
Full
Open cfm
1/2
Open cfm
30” 24” 378 189
36” 24” 460 230
48” 24” 654 327
72” 24” 960 480

• CFM at 100 fpm face velocity

• Housing is constructed of heavy gauged galvanized steel, with a
  baked enamel finish, to resist weather & chemical exposures.

• Flange inlet collars enable easy connection to ductwork.

• Wheel is dynamically balanced to minimize noise and increase
   efficiency.

• Ball bearing pillow blocks are per-lubricated and resistant to both
   moisture and dirt.

• Shaft is constructed of polished steel with a coating to prevent rust
  and corrosion.

• Motors meet NEMA standards for single speed motors.

• These blowers are ideally suited for both supply and exhaust
   applications in  laboratories, educational, pharmaceutical,
   industrial, and other applications.

Vertical Intake Vertical Discharge Blowers
Vertical Discharge BlowersVertical Discharge Blowers Vertical Intake Vertical Discharge Blowers, mounted in the interstitial ceiling space of the fume hood. Blower housing is constructed of FRP for chemical resistance Direct drive blower and impeller wheel are epoxy coated for superior chemical resistance. Explosion proof blowers have epoxy coated non-sparking aluminum impeller wheels. Motor is 115V, single phase and has thermal overload protection. Available on UniFlow SE, and CE fume hoods. 1 year manufacturer’s warranty
Catalog Number and Static Pressure
cfm A
Inlet
Diameter
B
Outlet
Diameter
HP STD EXP 1/4” SP 1/2” SP 3/4” SP
CFM CFM CFM
160 6” 4” 1/6 51060 51061 115 -- --
280 8” 6” 1/4 51062 51063 200 125 --
590 8” 8” 1/2 51064 51065 500 450 350
685 10” 10” 1/2 51068 51069 550 425 300
Polypropylene Belt Drive Blowers
Polypropylene Belt Drive Blowers High efficiency impellers produce low power consumption, reduced operating costs and quiet operation. 20 forward curved blades, in fire retardant polypropylene. Non-static and oil resistant v-Belt, cast iron pulleys, adjustable pulleys available, adjustment for tensioning and belt replacement. 230V explosion proof, non sparking, chemical resistant for hostile or hazardous environments. 115V single phase or three phase. Non-static and oil resistant V-belt, cast iron pulleys, adjustable pulleys available, adjustment for tensioning and belt replacement.
1 year manufacturer’s warranty
Polypropylene Belt Drive Blowers
Catalog Number and Static Pressure
cfm A
Inlet
Diameter
B
Outlet
Diameter
0.5” Static Pressure HP 0.75” Static Pressure HP 1.0” Static Pressure HP
HP STD EXP HP STD EXP HP STD EXP
400 6” 6” 1/4 51450 51850 1/4 51460 51860 1/4 51470 51870
800 8” 8” 1/4 51451 51851 1/3 51461 51861 1/3 51471 51871
1000 8” 8” 1/2 51452 51852 1/2 51462 51862 1/2 51472 51872
1200 10” 10” 1/2 51453 51853 1/2 51463 51863 1/2 51473 51873
1600 10” 10” 1 51754 51854 1 51464 51864 1 51474 51874
Variable Motor Speed Drive
Variable Motor Speed Drive  

Motor speed control can be used to manually adjust blower cfm. Adjustable speed control for 3-phase motors 3/4 to 10 horsepower at 230/460 volts and 50/60Hz. these drives provide high operation efficiency and constant input power factor throughout the entire speed range of 3 to 60Hz. Drives are rugged, reliable and backed by years of manufacturing and application experience in motors and controls. These drives are tailored to the variable torque loads in fans or fume hoods.

1/2 -5HP 230V 3ph, 50/60 Hz.....................................................................................Cat.No. 51402

Laminar Flow Fume Hoods
Laminar Flow Fume Hoods / Clean Work Stations are designed to protect equipment or processes from contamination, by providing a HEPA filtered Class 100 environment. The workstation has user friendly clear acrylic side walls, convenient hinge-up front viewing window, and fluorescing lighting with all controls front mounted. Unit includes 115v power cord for immediate set-up and operation.
laminar Flow 1 EnviroMax EnviroMax
Click for Sales, Service, & Request for Quote Click to Contact HEMCO Corporation
HEMCO Corporation 711 S. Powell Road Independence, MO 64056 816-796-2900 800-779-4362
  Copyright © 2022 HEMCO Corporation All Rights Reserved