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Topic: Exhaust fume


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In the News (Sun 3 Jun 12)

  
  Environmental Health & Safety: Design Criteria for Laboratory Furniture and Fume Hoods   (Site not responding. Last check: 2007-11-01)
Exhaust ductwork material shall be selected based on code compliance and compatibility with the types of chemicals/agents to be used (and anticipated for future use) in the labs.
General Purpose VAV Fume Hoods shall be capable of varying the exhaust air volume in proportion to the hood face opening by either changing the speed of the exhaust blower or by adjusting a damper in the exhaust duct for general laboratory fume hood operations.
Fume hood exhaust discharges shall be directed to the outside atmosphere and shall comply with applicable federal, state or local air emission standards.
www.usg.edu /ehs/guidelines/fume_design.phtml   (9077 words)

  
 Chemical Fume Hood Handbook
Because the amount of exhausted air is constant, the face velocity of a CAV hood is inversely proportional to the sash height.
This fume hood, sometimes referred to as a makeup air fume hood, was developed as a variation on the bypass fume hood and reduces the amount of conditioned room air that is consumed.
Fume exhaust duct connections, commonly called snorkels, elephant trunks or flex ducts, are designed to be somewhat mobile allowing the user to place it over the area needing ventilation.
www.research.northwestern.edu /research/ors/labsafe/hoods   (2327 words)

  
 New Page 1
Exhaust hoods protect operators from breathing harmful fumes by capturing, containing, and exhausting hazardous gases created in laboratory experiments or industrial processes.
Fume hoods typically exhaust large volumes of air at great expense.
Fume hood exhaust induces airflow through the fume hood’s “face.” The generally accepted “face velocity” is 100 feet/minute; a high airflow rate causing large exhaust flows.
ateam.lbl.gov /hightech/fumehood/brochure/FHB2RevG.htm   (446 words)

  
 Exhaust Fume Hoods
This Exhaust Fume Hood is designed to afford you maximum economy and flexibility in designing the system that's just right for your application.
The Ductless Exhaust Purification Hoods include an explosion-proof blower installed inside the hood and provisions for mounting purification filters and particle filters that safely remove a wide array of fumes to allow safe indoor release of exhaust.
Exhaust Purification Filter (for Ductless Exhaust Applications) These filters safely remove a wide array of fumes to allow safe indoor release of exhaust fumes.
www.terrauniversal.com /products/hoods/exhaustfume.php   (767 words)

  
 Fume Scrubber   (Site not responding. Last check: 2007-11-01)
The fumes of these acids are simply suspended droplets of contaminated vapor and are re-solubilized when passed through a liquid rich environment.
The exhaust fumes are either blown from the etcher or plater at the bottom end of the scrubber, or they may be sucked up by a blower fitted at the top end of the scrubber.
The Fume Scrubber is 99.9% efficient in removing the gaseous contaminates in either a ferric chloride or chromic acid environment.
www.cronite.com /fumescrubber.htm   (393 words)

  
 UMass Amherst: Environmental Health and Safety
Fume hood systems in new or renovated laboratories that do not meet the testing criteria and specifications will not be accepted for use by Environmental Health and Safety and the University of Massachusetts at Amherst.
A VAV hood is one that is fitted with a face velocity control which varies the amount of air exhausted from the fume hood in response to the sash opening to maintain a constant face velocity.
Exhaust stacks shall be designed and built to prevent recirculation of contaminated air from the fume hood exhaust system into the fresh air supply of the facility or adjacent facilities.
www.ehs.umass.edu /fume-hood.html   (4115 words)

  
 A fume exhaust cabinets systems hoods cupboards asia india tamilnadu chennai
The exhaust system consists of a dynamically balanced centrifugal impeller, made of PVC/FRP, directly coupled with a TEFC industrial motor of 1440 RPM 3 phase 415 V and control led by a DOL starter with systems ranges from 500 CFM to 1250 CFM or above as it is proportional to the dimensions of the hood.
Cleanair Fume exhaust hoods are provided with suitable ducting of FRP or PVC material with required diameter and length as per the site conditions.
Cleanair Fume exhaust hoods are also available with full FRP construction or combination of FRP and Ply, With or without work bench.
www.aeromechindia.com /fume_exhaust_cabinets_systems_hoods.htm   (263 words)

  
 Fume Cabinets and Cupboards Laboratory Safety Dynamic Fume Exhaust Systems Sydney Australia
Acceptance of the quality design and manufacture of dynamic fume cabinet exhaust systems was positive and factory space was quickly doubled in 1986 by 1992, some 250 dynamic fume cupboards had been installed in Australia.
A lot of innovative design work had been done and a wide range of laboratory exhaust equipment and air cleaning equipment had been developed and sold.
Clients are therefore assured that their equipment will be tested and measured by a company that meets the technical competence requirements of internationally recognised Standards such as ISO/IEC Guide 25 or ISO/IEC 17025 (which includes the management requirements of the ISO 9000 standards).
www.dynamicfume-exhaustsyst.com.au   (266 words)

  
 Fume Scrubbers and Exhaust Systems by Mech-Chem - Overview
Mech-Chem engineers, fabricates and installs high efficiency, low maintenance fume exhaust systems designed to remove water soluble contaminants by means of gas absorption and mechanical impingement.
Proper fume control equipment also requires the proper installation and system integration to be the most effective.
We add the value of 18 years of chemical process design experience and expertise to every fume scrubber and exhaust system that we design, fabricate, and install.
www.mech-chem.com /fumescrubbers/fume_scrubber.html   (216 words)

  
 Exhaust fan   (Site not responding. Last check: 2007-11-01)
Bathroom exhaust fans may have a light or heater or be only a fan.
Exhaust fans carry certified sound ratings developed by the Home Ventilating.
The report also stated that the exhaust fan in question was not intended for kitchen use exhaust fan.
www.hotunits.com /exhaust-fan.html   (349 words)

  
 University of Wisconsin-Milwaukee Department of University Safety and Assurances -- Occupational Safety -- Confined ...
LOTO (lockout/tagout) and notification/coordination is for the protection of both the worker on the roof AND the person in the lab (so they know the fume hood may not be functioning at a particular time).
The roof stacks are designed to exhaust at high velocity to achieve dilution of fugitive chemical emissions.
The exhaust for these vaults is at the roof line and eddy currents blow the smell over the roof stack.
www.uwm.edu /Dept/EHSRM/EHS/CONFINEDSPACE/chemroof.html   (1041 words)

  
 Fume Hoods - Donald A. Coggan, Engineer
Scientific laboratories are equipped with fume hoods in order to improve the level of safety of people conducting experiments with products that would represent a threat to the health, and possibly the life, of someone using the products in some unprotected way.
indicates that the fume hood control system must be able to change the fume hood exhaust flow within three seconds in response to changes in sash position; otherwise, fumes may escape from the hood.
For hood exhaust airflow capacity control, use only a variable speed motor control designed for rigorous laboratory service, or in the case of manifolded hoods, use a proven airflow control device (such as a controllable airflow Venturi air valve controlled by a combination of pneumatic actuator and electronic analog controller).
www.coggan.com /fume-hoods.html   (2186 words)

  
 Exhaust Fume Hoods | Fume Hood
All of our fume hoods are made of a double wall construction and high quality steel with a baked enamel paint finish.
The fume hood sash is a full-view type providing an unobstructed view of the hood's interior and fixtures.
For more information about fume hoods and accessories, please call 1-888-LDS-3100 or email us at hoods@labds.com.
www.labds.com /Fume-Hoods/exhaust-fume-hoods.aspx   (84 words)

  
 Air Clean Systems - Ductless Fume Hoods - Laminar Flow Hoods - Raleigh NC
The variable airflow volume exhaust hood incorporates a state-of-the-art airflow sensor that is controlled via microprocessor driven controller.
AirMax™ fume hoods have an advanced airfoil design that is very important to the overall safety and performance of the fume hood.
The general theory behind wet scrubbing of fumes and particulate is to reduce the emission of vapor and contaminant into the atmosphere via interception with a liquid interface.
www.aircleansystems.com /totalexhaust_flame.htm   (534 words)

  
 Fume Hood / Industrial Hoods For Exhaust Mists, Vapors, Gases, Aerosols
Tri-Mer fume hoods are manufactured for process and laboratory use.
Tri-Mer fume hoods are ideally suited for corrosive or volatile exhausts.
Fume hoods are custom-fit for the tank or workstation.
www.tri-mer.com /fume-hoods.html   (98 words)

  
 Ductless Exhaust Fume Hood   (Site not responding. Last check: 2007-11-01)
This negative-pressure system ventilates and purifies hazardous fumes generated under the hood, allowing safe indoor release of exhaust.
Note: Terra recommends thorough testing of filter performance in each application prior to exhaust release, and assumes no responsibility for damage or injury that may result as a consequence of improper filter selection or use.
Unless otherwise specified, blower/filter modules come installed as indicated in the illustration, with the higher-rated filter positioned downstream of the purification filter in the filter housing.
www.terraforensic.com /forensicproducts/hoods/f_ductlessexhaust.shtml   (411 words)

  
 Fume Exhaust Units, Laboratory Fume Hoods India
On suggestion from his top line HVAC consultant, the M.D. invited CITIZEN to develop Fume Exhaust Unit, Laboratory Fume Hoods which can match with the high standards of his RandD facility.
For example, a 1500 mm wide unit with 8 to 9 meter long ducting requires only 0.18 KW motor, which is 80 to 85 % lower compared to traditional design units offered by others, yet the efficiency is much better.
High efficiency imported exhaust fan is compact, vibration free and quiet in operation.
www.citizenindustries.co.in /fumeexhaust.html   (443 words)

  
 Overhead Fume and Exhaust Removal Systems
Metal flexible tubing and winch type pull-up set are also available for dynamometer installations.
exhaust hose and adapters easily pulled up and out of the way, ready for the next work day.
Superior quality spring operated hose reel can be mounted from ceiling, wall or floor, latch mechanism maintains desired working length or hose; baked enamel finish.
www.nsgv.com /over.htm   (200 words)

  
 Salare Free Standing Laminar Flow Total Exhaust Fume Hoods
The LFE is a laminar flow chemical work station designed to provide optimum protection to operator and ensure no particulate contamination to your product or process.
Its functions supply clean sterile air over your process while an inward air flow, as in a conventional fume hood, protects the operator.
• Incorporated is a fluorescent light fixture in a fume tight enclosure with all plastic hardware.
www.salareinc.com /free_standing_fume_hoods.asp   (688 words)

  
 commercial kitchen exhaust hoods   (Site not responding. Last check: 2007-11-01)
Effluents have been measured from various grease-producing cooking processes in an attempt to quantify the emissions that enter typical commercial kitchen exhaust hoods.
Energy Saving grease exhaust hoods are double wall type...
years, the major changes to commercial kitchen exhaust system designs are the result of...
www.1st-restaurant-equipment.us /1/commercial-kitchen-exhaust-hoods.html   (568 words)

  
 Fume Scrubber and Exhaust System Installation by Mech-Chem Associates, Inc.
This extensive, in-depth experience makes us a good qualified source for installing exhaust systems and fume scrubbers for chemical, metal, and electronics manufacturing processes.
Many companies fabricate and sell fume scrubbers, however they leave it up to you to install the equipment.
Additionally, if you are in the New England area, or nearby Northeast and Mid-Atlantic regions, Mech-Chem can represent a significant cost savings as we are a primary fume scrubber manufacturer and installer located in the region.
www.mech-chem.com /fumescrubbers/install.html   (217 words)

  
 Fume Control Technology - Fume Scrubber, Cleaning Services, Cooling Towers, Blower Service Specialists
Our technicians are also experienced, extensively trained, and properly equipped with all the equipment necessary to clean all types of air ducting and HVAC systems.
A variety of chemical and biological contaminates such as bacteria, fungi, dirt, and debris can potentially congest and block air ducts connected to fume scrubbers, exhaust blowers, or HVAC units.
It is important to periodically clean blower wheels to remove any buildup that may accumulate during the course of the year.
www.fumecontrol.com /ics.htm   (298 words)

  
 Exhaust Hoods on ThomasNet.com
Company Profile: Manufacturer of fume exhaust hood for laboratories including articulated fume extractor arms.
Fume arm tubes are made of stainless steel with cast aluminum joints, hood of 12 in.
Company Profile: Distributor of flow & exhaust fume hoods as dust collector made of polypropylene that are corrosion proof & are used in laboratory, cleanroom, pharmaceutical, medical & hospital application....
www.thomasnet.com /products/exhaust-hoods-38741500-1.html   (883 words)

  
 Fume Exhaust Systems and Duct Fittings
; thermoplastic chemical and corrosion resistant fume exhaust systems are pre-engineered to save you both time and money.
The efficiency and effectiveness of exhaust systems are important to you and the maintenance of air quality standards.
While our specialty is to prefabricate entire fume duct systems manufactured to your specifications, PLASTINETICS® also manufactures and supplies fume duct pipe, fittings, dampers, rain caps, blast gates, etc. for field assembly.
www.plastinetics.com /ducts.htm   (1466 words)

  
 Service Plus Sheetmetal Inc. -- Exhaust & Fume Hoods
Over 90 Years Combined Experience - Service Plus manufactures a comprehensive line of exhaust and fume hoods, that include free standing fume hoods, wall and island style range hoods, to accommodate any exhaust requirements needed.
Stainless Steel fume hoods safely remove noxious or hazardous fumes away from work surfaces, our hoods are non-contaminating and resist a wide variety of corrosive materials.
SPSM also manufactures commercial kitchen exhaust hoods that provide excellent capture of exhaust fumes, our hoods are designed to be used over equipment such as ranges, ovens, griddles, fryers, char broilers, kettles, and steamers.
www.serviceplussheetmetal.com /id8.html   (138 words)

  
 Nederman Filters for Fume Applications
Our complete line of fume collectors is complete with portable and stationary units.
This product line is ideally suited for welding facilities, laboratories, or any work environment where there are harmful fumes or odors.
Nederman filtration units help return clean air to your working environment in a safe and efficient manner.
www.nedermanusa.com /html/filtfume.html   (60 words)

  
 Fume Exhaust Systems and Duct Fittings
thermoplastic chemical and corrosion resistant fume exhaust systems are pre-engineered to save you both time and money.
All duct systems are designed in accordance with the recommended practice of the American Conference of Governmental Industrial Hygienists and fabricated in accordance with Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) manual for Thermoplastic Construction.
While our specialty is to prefabricate entire fume duct systems manufactured to your specifications, we also manufacture and supplies fume duct pipe, fittings, dampers, rain caps, blast gates, etc.
www.pep-plastic.com /manufacturers/plastinetics/ducts.htm   (1094 words)

  
 Underfloor Fume and Exhaust Removal Systems
To complete the installation, add NK flex tube and an NK 30 tailpipe adapter.
Not all exhaust removal systems are created equally.
Our systems are made of U.S. steel and crafted with pride and tradition.
www.nsgv.com /under.htm   (168 words)

  
 Tubing: Exhaust, Fume on ThomasNet.com
Company Profile: ISO 9001: 2000 certified custom manufacturer of exhaust fume tubing, fuel handling tubing, gas tubing, instrument tubing, & pump tubing.
Company Profile: Manufacturer of flexible, non-metallic stretchable exhaust & fume tubing made of extruded rubber.
Company Profile: Manufacturer & distributor of a wide range of exhaust fume & flexible metal tubing including carbon steel & stainless steel exhaust tubing.
www.thomasnet.com /products/tubing-exhaust-fume-88639828-1.html   (845 words)

  
 Planet Ark : Tiny Opel best, big BMW worst in exhaust fume test
Big BMWs, Porsche sports cars and a brand new Saab model were the worst polluters in a test, which measures emissions of carbon monoxide, carbon dioxide and nitrogen dioxide as well as hydrocarbons, sulphur dioxide and other polluting particles, the Teknikens Varld magazine said.
Its tests, by putting more strain on car engines in various driving conditions, were more comprehensive than exhaust fume tests carried out on behalf of the European Union for an official classification of how environmentally friendly cars are, the magazine said in a news release.
The average of the Teknikens Varld's EPI-01 environmental pollution index for cars sold in Sweden was 115 points and the median 103.5 points.
www.planetark.org /dailynewsstory.cfm/newsid/12319/story.htm   (377 words)

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