Chemical Fume Hoods

Product Details:

Fume hood wet process are specially designed for the use in semiconductor research and manufacturing where tanks, rinsers, heated baths require control modules. These equipments work with a lower exhaust blower to provide a means of removal of toxic fumes and odors. These equipments have a wide range of applications in several research and development organizations, medical laboratories, or for industrial applications. These equipments also known as Semi Conductor Wet Bench.

These self-contained Wet Processing Cabinets provide the perfect turnkey solution for a wide range of cleaning and processing requirements. This Cabinets also known as Wet Bench.

Available in polypropylene/SS-304 Wet Process Station from WEIBER manufactures both standard and customized microprocessor based Floor standing equipments. The fume hoods with PP construction are FRP lined and epoxy coated.

 

Standards Compiled:

• Federal Standard 209e
• Class 10 cleanliness
• ASHRAE Standard 110-1995

 

Special Features:

• Incorporates all processing components into one self-contained, easy-to-clean system
• Isolated control panel allows safe, convenient operation of baths, rinsers, and other process modules
• Select all-polypropylene or 304 stainless steel shell
• Standard system includes sliding access shield and fluorescent illuminator
• The Wet Processing Stations accommodate up to eight processing modules (rinsing tanks,etching baths, ultrasonic cleaners, hot plates, etc.).
• HEPA-filtered laminar flow fume hoods are suitable for use with trace metal applications. These units incorporate a top located filtration system powered by a dynamically balanced motorized impeller for even air distribution and excellent energy efficiency resulting in quiet operation.
• Corrosion resistant interiors and exteriors.
• Microprocessor based control system

 

Construction Details:

Fume hood wet process are manufactured with all white structural polypropylene/SS-304, which is corrosion resistant. All modular fume hoods are provided with sliding sash made of special grade shatter proof glass duly framed in wooden/ aluminum frame with sliding motion and counter weight balanced mechanism.

Noise and Sound Levels

Our stainless steel fume hoods are designed with lower noise levels and the performance of these fume hoods are comparatively better than the industry standards of 60db, and approximately 15cm distance from the sash.

Volume of exhaust

It is generally known that fume hoods are capable of maintaining a constant exhaust volume.

Illumination levels at work space

Our fume hoods wet process makes sure that a maximum of 800 lux light is available on the work table through diffuser fluorescent light arrangement.

Exhaust assembly

These fume hoods wet process are incorporated with an extremely durable and b exhaust system that generally persists a range of 500-1250 CM. These exhaust assembly comprises of balanced centrifugal impellers that are combined with a heavy duty three phase motor of Crompton greaves.

Exhaust ducting

These fume hoods wet process are also integrated with a FRP ducting of required dimension as per the requirements of the user.

 

Product Details:

Walk in fume hood is a regarded as a great way to handle odors and toxic fumes from processing units and distillation assemblies. These floor standing fume hoods can feature services like air, gas, nitrogen or any other type of gas. Weiber mobile fume hoods are ducted or ductless as per choice, microprocessor based, advanced and CE marked equipments are designed for both laboratory and industrial application like:

• Extraction of fumes, aerosols and dusts from the internal workspace to prevent dangerous toxic concentrations from escaping into the laboratory
• For avoiding the creation of a dangerous, potentially explosive atmosphere in the internal workspace
• Protection against dangerous extrusive substances
• Protection against flying debris, compounds or particles from the internal workspace

 

Compatible Standards:

• ASHRAE-110-1995.
• CSA Z316.5-94.
• EN 14175
• CAN/CSA-22.2
• EN-61010-1
• IEC-61010-1

 

Special Features:

• Microprocessor based controls
• Welded superstructure for structural rigidity and design flexibility to contain large equipment and conveyances
• Three-piece baffle system with three adjustable dampers to regulate lighter- and heavier-than-air gases
• Airfoil around top and sides of sash opening, with electrical fixtures and plumbing controls mounted on bias surface
• Electrical switches and receptacles. Also explosion-proof lighting and fixtures available.
• Air velocity monitor/alarm
• Blowers – selected to match hood and ductwork configuration, corrosive or ignitable exhaust fume
• Removable exterior side panels.
• Double wall construction for ease of routing service piping.
• Lights are mounted above a sealed safety glass panel keeping corrosive fumes and hazardous vapors isolated.
• Safety equipment for operators, tested according to EN 14175

 

Operating Principle:

Fume-hoods draw air out of the rooms they are installed in. There needs to be an adequate volume of air available or the fume-hood will not be able to draw a sufficient volume of air to function properly. Protect you from fumes you are working with. The fan sucks in the air toward the duct inside of the fume hood and exhaust outside.

Testing Procedures of Containment

Fume hoods are specifically to decrease the loss of static pressure at a given baffle opening position. According to the standard procedures the average loss of static pressure at any given four points at ninety degree and 3 duct dia from the fume hood, that will not exceed 75 feet per minute at 0.25 inch, with full slash opening and face velocity of 100 feet per minute.

 

 

 

Product Details:

Polypropylene Fume Hood for high acid and trace metal analysis use. WEIBER offers a range of Pp Fume Hood constructed from all white stress-relieved, acid resistant, non-corrosive polypropylene. These hoods are specially engineered for use with harsh corrosive acids. They are available as conventional total exhaust hoods providing only operator protection, and as HEPA-filtered laminar flow fume hoods providing both operator and product protection.

 

Constructed almost entirely of polypropylene, this fume hood contains the Zero Leak Airflow System, available only from. The system prevents uneven particulate loading by eliminating direct blasts to the HEPA filter, dispensing air over 100% of the surface. These cabinets meet Federal Standard 209e, Class 10 air quality conditions, and have been independently tested for containment properties in accordance to ASHRAE Standard 110-1995 for Fume Hoods.

 

Compatible Standards:

• Federal Standard 209e
• Class 10 cleanliness
• ASHRAE Standard 110-1995

 

Special Features:

• Microprocessor based controls
• Manufactured from all-white, structural polypropylene.
• Conventional total exhaust hoods are suitable for applications with harsh corrosive acids which regular steel hoods may not withstand.
• A microprocessor controller monitors face velocity and displays the real-time airflow on the LCD screen in linear feet per minute.
• Have an advanced airfoil design that is important to the overall safety and performance of the fume hood.
• A removable work surface exposes a spill basin that may be fitted with a drain for disposal of any spills.
• Built-in vapor-proof fluorescent light
• Easy-access utilities panel for operation and maintenance
• Flame-retardant polypropylene interior - higher temperature working range than fiberglass.
• HEPA-filtered laminar flow fume hoods are suitable for use with trace metal applications. These units incorporate a top located filtration system powered by a dynamically balanced motorized impeller for even air distribution and excellent energy efficiency resulting in quiet operation.
• Available with a wide range of options and accessories, including, service fixtures, sinks, electrical outlets, digital airflow alarms and base cabinetry.
• Corrosion resistant interiors and exteriors.

 

Product Details:

WEIBER Emergency Shower are equipments that are designed to remove contamination from personnel prior to entering a clean room and are available in both standard and customized models. These provides on-the-spot decontamination. Laboratory Emergency Shower are a combination of stainless steel that will be accord with the lustration grade, firm and resistant chemical. These are suitable for cleaning eyes, face, hands, and spray head can be used for washing the whole body. Eye wash and spray shower can be used at the same time or they can be used separately. Switch of the spray shower is placed at the top of the handle and the flow is steady and simple.

Accidental chemical exposures can still occur even with good engineering controls and safety precautions. As a result, it is essential to look beyond the use of goggles, face shields, and procedures for using personal protective equipment. Emergency showers and eyewash stations are a necessary backup to minimize the effects of accident exposure to chemicals.

Emergency Showers can also be used effectively in extinguishing clothing fires or for flushing contaminants off clothing.

 

Compatible Standards:

• ANSI Standard Z358.1-2014

 

Special Features:

• Equipped with HEPA filter
• PLC programmable logic controller
• Self-regulating
• Fully dispersed
• Floor Standing
• PP constructed & chemical resistant
• NABL & NSF certified
• CE marked

Product Details:

The Walk in Hydroponics Test Chamber from Weiber are fully enclosed, self-contained plant growth chambers, designed to provide a cost effective solution to getting bigger harvests in smaller spaces and less time. These equipments use advanced technological features and an energy efficient design to provide optimum growth conditions for all stages of plant growth. They are designed to meet all the ventilation, lighting and temperature requirements for different plant species, providing a safe and aesthetic area for growing different types of plants in an aerated solution of nutrients.

 

These growth chambers provide a standard technique for growing plants in an artificial laboratory environment for various biological research and teaching applications. They come equipped with a nutrient reservoir featuring a customized lid inside the chamber with enough built-in capacity. The plants absorb the nutrients though their roots that remain submerged into a dilute solution containing organic or inorganic nutrients to meet their entire nutrient requirement. Since plant growth can also be affected considerably due to inadequate lighting, these hydroponics chambers also come equipped with an efficient lighting system fitted at the top of the chamber. They might use compact fluorescent bulbs for reduced energy consumption, LED grow lights or more reliable HID bulbs to provide solar energy for enabling plant photosynthesis. The whole cabinet is lined with foil for maximum reflection of light back at the plants and features a transparent window in the front for increased visibility.

 

Special Features:

• Capacity: 2000 Ltrs to 20000 Ltrs
• HMI+PLC based controllers
• Colored touch screen panel.     
• Meets ventilation, lighting and temperature requirements for different plant species.
• Equipped with a nutrient reservoir featuring a customized lid inside the chamber with enough built-in capacity.
• Equipped with an efficient lighting system (advanced fluorescent bulbs, LED grow lights, HID bulbs).
• Lined with foil for maximum reflection of light back at the plants.
• Provided with temperature sensors for continuous monitoring of the working temperature.
• Non-dispersive infrared gas sensors for accurate estimation of the CO2 concentration.
• Equipped with efficient fans and motor, designed for no-vibration and noise-less operation.
• Indirect heating system comprising of stainless steel sheathed air heaters for maintaining positive temperatures within the chamber.
• Ultra-low temperature application compressors.
• Onsite calibration and validation
• Circulation Fan with Variable Speed -
  
  • Electrical efficiency
    Variable speed motor saves money by reducing energy bills, as it consumes less electricity than conventional motor.
  • Cooling Efficiency
    Variable speed enables gaining air conditioning efficiency or SEER.
  • Air Quality
    Variable speed motor helps clean the air efficiently. When the fan is in constant operation (indicated by the "Fan" setting on thermostat), the motor continues to slowly circulate air, allowing filters to capture more contaminants.
  • Humidity Control
    Variable speed motor combined with a Thermostat allows controlling the amount of humidity.
  • Quieter Operation
    Variable speed blower motor are significantly quieter thanits single-speed counterpart.
• Air Cooled Refrigerated System - Air cooled refrigeration system offer various benefits like
  
  • low fan power consumption
  • resistant to corrosion and freezing conditions
  • requires very low maintenance
  • Guaranteed long life operation

Product Details:

Fume Hoods are equipments that are used to ensure safety for the user as they won’t be exposed to too many hazardous and dangerous fumes. Fume Hood capture the fumes/effluents released during any given experiment, contain them in the enclosure and then emit through their well-designed exhaust system.

 

We specialize in standard Fume Hood and customized Chemical Fume Hood. Fume hoods typically protect only the user, and are most commonly used in laboratories where hazardous or noxious chemicals are released during testing, research, development or teaching. They are also used in industrial applications or other activities where hazardous or noxious vapors, gases or dusts are generated or released.

 

Standards Compiled:

• ASHRAE-110-1995.
• CSA Z316.5-94.
• EN 14175
• CAN/CSA-22.2
• EN-61010-1
• IEC-61010-1

 

Special Features:

• Low noise levels energy efficient mechanism
• Conforms to ASHRAE-110-1995
• CE marked and NABL & NSF certified
• Floor standing & epoxy coated
• Velocity control of approximately 80-100 feet per minute.
• Semi close ventilated exposures.
• Provided with sliding sash made out of special grade shatter proof glass duly framed in wooden/aluminum frame with sliding motion and counter weight balanced mechanism.
• Illumination level of approx. 800 lux on the work table.
• heavy duty exhaust system, comprising of dynamically balanced centrifugal impeller with high speed motor
• suitable FRP ducting of required dimension as per the individual requirements
• Microprocessor based controls

 

Opearating Principle:

Fume-hoods draw air out of the rooms they are installed in. The fan sucks in the air toward the duct and exhaust outside

Testing Procedures of Containment

Fume hoods are specifically to decrease the loss of static pressure at a given baffle opening position. According to the standard procedures the average loss of static pressure at any given four points at ninety degree and 3 duct dia from the fume hood, that will not exceed 75 feet per minute at 0.25 inch, with full slash opening and face velocity of 100 feet per minute.

 

Product Details:

WEIBER Ceiling Fume Hood are designed to collect and exhaust corrosive vapors, heat, steam, and odors when mounted over areas with water baths, hot plates, or portable equipment. Because it mounts on the wall above your work bench, it won’t require any floor space. Simply connect the discharge to your in-house ventilation system. An integral high-airflow baffle with filters conducts the gas flow into the hood. Roof Mounted Fume Hood are developed and designed to be used as semiconductor ventilated enclosures so as to protect the user from harmful and toxic fumes and vapors and to eliminate the possibility of accidental fire which may lead to emission of inflammable gases during the course of experiments.


Special Features:

• Reliable
• Precise Control of Environmental
• Micro-processor based Controller
• Aesthetically designed
• Corrosion Resistant interior and exteriors
• Energy Efficient.
• Sturdy
• Low Maintenance
• Light Weight

 

Construction Details:

Constructed of pre coated corrosion resistant GI sheet / SS-304
Noise and sound levels
Our fume hood ceilings are designed with lower noise levels and the performance of these fume hoods are comparatively better than the industry standards of 60db, and approximately 15cm distance from the sash.

Illumination levels at work space
Our fume hoods ceiling make sure that a maximum of 800 lux light is available on the work table through diffuser fluorescent light arrangement.

Exhaust assembly
These fume hoods ceiling are incorporated with an extremely durable and b exhaust system that generally persists a range of 500-1250 CM. These exhaust assembly comprises of balanced centrifugal impellers that are combined with a heavy duty three phase motor of Crompton greaves.

Exhaust ducting
These fume hood ceiling are also integrated with a FRP ducting of required dimension as per the requirements of the user.

Applications:

• Life Science
• Chemical Research
• Assisted Reproductive Technology (ART)
• Pharmaceutical Equipment

Product Details:

If you are concerned about duct corrosion, hazardous stack emissions or other environmental factors associated with a fume hood you may want to consider a scrubber. WEIBER Fume Hood Scrubber provides excellent air pollution control for water soluble chemicals present in the laboratory fume hood exhaust fumes. These Scrubber Fume Hood are designed to save space and provide effective air pollution control and operator safety protection for fume hoods. This is especially important for per chloric acid fume hoods, so as to prevent a build-up of potentially explosive perchlorate salts on the exhaust fan, as well as, on the exhaust ducting system.

 

Compatible Standards:

• ASHRAE-110-1995.
• CSA Z316.5-94.
• EN 14175
• CAN/CSA-22.2
• EN-61010-1
• IEC-61010-1

 

Special Features:

• Microprocessor based controls
• Exellent removal efficiencies: Efficient counter-current gas/liquid contact results in 95-98% efficiency for most water-soluble acid and base laden airstreams.
• Durable: Entire body of scrubber system made of chemical and corrosion resistant polypropylene.
• Compact: The packing, spray manifold and mist eliminator counted on top of fume hood, pump and reservoir in the base cabinet. This arrangement ensures that minimal extra space is required for the scrubber system.
• Floor standing & epoxy coated
• Velocity control of approximately 80-100 feet per minute.
• Semi close ventilated exposures.
• Provided with sliding sash made out of special grade shatter proof glass duly framed in wooden/aluminum frame with sliding motion and counter weight balanced mechanism.
• Illumination level of approx. 800 lux on the work table.
• heavy duty exhaust system, comprising of dynamically balanced centrifugal impeller with high speed motor
• suitable FRP ducting of required dimension as per the individual requirements

 

Working Principle:

Contaminated air from the fume hood enters the unit and passes through a packed bed then through the liquid spray section, a mist eliminator and then into the exhaust system for release outside the building. The scrubbing liquor is recirculated from the sump and back to the top of the system usinga pump. The air and the scrubbing liquor pass in a countercurrent fashion for efficient gas/liquid contact. Water soluble gases, vapors and aerosols are dissolved into the scrubbing liquor. Removal efficiencies for most water soluble acid and base laden airstreams is 95-98%. Particulates are also captured quite effectively by this type of scrubber.

 

 

 

Product Details:

Weiber Laboratory Fume Extractor are widely used for removing smoke, fumes, mist, and fine powder. Mobile fume hood extractor is primarily designed for various pharmaceutical laboratories, various research and development industries and light duty industry. These CE marked equipments are extremely durable, reliable and easy to operate.

 

it uses an activated carbon filter and fan to remove the smoke, and noxious fumes, created from soldering and other chemical processes.

 

Fume Extractor includes a flame-retardant, self-supportive flex arm for easy and varied placement. Other benefits include small footprint, portability handle, heavy-duty casters for easy maneuverability, quick change pre-filter, and a variable speed controller. The product also known as Portable Fume Extractor.

 

it comes equipped with patented filtration media that is customized specifically for welding fume control. In most cases, HEPA filtration is utilized and is up to 99.97% efficient on particles 0.3 microns and larger. Other options include ASHRAE [up to 95% efficient on particles 0.5 microns and larger] and ULPA filtration media [up to 99.9995% efficient on particles 0.12 microns and larger].

 

Special Features:

• Extraction at-source with arms: A range of arms in different designs and arm lengths, hose diameters etc. Full flexibility in all directions and easy to position.
• Mobile extraction/filtering units: A range of easy to move around mobile filter units solve most demands regarding welding fumes and dust.
• Stationary vacuum/ filtering systems: include central vacuum systems with fans, filters and duct system to extract welding smoke from a number of workstations via extraction arms or from welding torches. The systems are also used for extraction of particles from grinding, sanding etc., and for cleaning of workplaces, premises and machines.
• Mobile vacuum units: For cleaning, collection of scale rags etc.
• Cable and Hose Reels: For convenient supply of gases, compressed air, water, and electric power. Hoses and cables are out of the way when not in use which improves safety.
• Energy Saving System : fan control unit, motor dampers and fan inverter substantial savings in energy and operation cost are made.
• Light Weight: Compact and superior materials ensure the equipment to be light we

 

Construction Details:

Made Of Carbon Steel

Filter System

Fume Extractor comes equipped with patented filtration media that is customized specifically for welding fume control. In most cases, HEPA filtration is utilized and is up to 99.97% efficient on particles 0.3 microns and larger. Other options include ASHRAE [up to 95% efficient on particles 0.5 microns and larger] and ULPA filtration media [up to 99.9995% efficient on particles 0.12 microns and larger].

Product Details:

Ductless Fume Hood provide protection to both laboratory personnel and the environment from toxic fumes. Ductless fume hoods are considered as independent systems that do not require connection to the extraction systems. Unlike conventional fume hoods, these hoods filter out chemical fumes and recycle air directly back to the laboratory, providing energy savings, personnel and environmental protection, convenience as you do not have to deal with complicated ducting systems, and mobility, since ductless hoods are independent systems which do not require connection to extraction systems.

With a Ductless Fume Hood it is essential that the filter medium be able to remove the particular hazardous or noxious material being used. As different filters are required for different materials, recirculating fume hoods should only be used when the hazard is well known and does not change.

 

Standards Compiled:

• ASHRAE 110
• EN 14175-3
• AFNOR NF X 15-203
• BS 7989
• BS 7258

 

Special Features:

• Certified to ASHRAE 110, EN 14175-3, AFNOR NF X 15-203, BS 7989, BS 7258
• Robust hood construction for a long lasting unit.
• Large working area provides user comfort.
• Generous carbon filter weight to ensure uniformed filtration.
• Elegant and smooth sliding sash window.
• Microprocessor control system with audible and visual alarms for unsafe conditions.
• Front service panel opens up easily for maintenance functions
• VOC sensor to monitor chemical concentration within the cabinet work zone.(optional).
• Electrical Outlets: Direct mounted single electrical outlet.(Available in all international socket outlet types. Specify when ordering.)
• Centrifugal Fan: Permanently lubricated fans are energy efficient with external rotor motor design that reduces operating costs. Extremely low noise and low vibration level.
• Arm Ports: allows easy access to work zone without risking exposure from chemical fumes.
• Work Top: Spill-retaining work top designed with a recessed central area contains accidental liquid spills.

 

Operating Principle:

Ductless enclosure is a safety device used to protect laboratory workers when handling chemicals that pose an inhalation risk.

These enclosures are equipped with filtration technology that is specific to the type of chemicals handled. These filters capture toxic molecules and particles

evaporated in the hood and make it possible to:

• Protect users in an effective manner
• Reduce the carbon footprint by not releasing any toxic emissions into the atmosphere
• Reduce operating costs due to their very low energy consumption
• Eliminate all set-up costs related to the installation of a ducted airflow system.

• Air intake through the openings
  Air from the laboratory enters the hood through ergonomic openings. The air face velocity creates a dynamic barrier between the user and the chemicals being handled.
• Filtration of particles and molecules
  The device ventilation system draws the particles and any molecules that have evaporated in the hood toward the filtration system. The level of containment provided by the hood prevents any pollutants from being released into the laboratory.
• Clean air into the laboratory
  The filtration technology customized to the application traps the molecules that have evaporated within the enclosure. The discharged air is free from all pollutants.
• Purification of the ambient air
  The continuous recirculation of the filtered air helps to purify the ambient air of the laboratory.