Explosion Proof Heat Resistant Stainless Steel Fume Hood for Chemical Laboratory

• Customization: Available
• Material: Carbon Steel
• Type: Natural Ventilation
• Model NO.: MQ-1500A / MQ-1500B
• Feature: Corrosion Resistance, Heat Resistant, Acid & Alkali Resistant, Fireproof, Explosion Proof
• Hood Type: Standard
• Color: White
• Customized: Customized
• Condition: New
• Product Name: Ductless Fume Hood
• Interior Baffle: Ceramic
• Work Surface: Ceramic
• Liner Material: Ceramic Fiber
• Airflow: Ceramic Fiber
• Sash: Tempered Glass
• Transport Package: Standard Export Wooden Case Packing
• Specification: 1500*1205*2400(mm)
• Trademark: Ample
• Origin: Chengdu, China
• HS Code: 8414809090
• Production Capacity: 100 Set/Month
• Package Size: 1900.00cm * 900.00cm * 2100.00cm
• Package Gross Weight: 500.000kg

Product Description

1. Product Description

Product features:

1. Easy to assemble; Anti-corrosion and high temperature resistance;
2. Unique down return air, timely and effectively exhaust without residual;
3. Special flow-equalized design makes the flow even without any blind angle;
4. The internal visual range will not form condensate due to temperature difference, therefore no drip will form;
5. The internal airflow direction is not affected by the volume of the exhaust air, thus will not cause turbulence;
6. Low energy consumption, easy to operate;
7. Has air compensation channel and connection, saves energy, comfortable;
8. Drainage will not be limited by the height of the drain,since it has pump to lift the sewage;; 

 

Product function:

1. Exhaust waste gas;
2. New air compensation;
3. Inorganic exhaust gas purification;
4. Sewage treatment function (Acid and alkali neutralization);
5. All electrical and mechanical devices can start and stop independently;
6. Purification system resistance monitoring: auto-alarm when the set value is exceeded;
7. Purification system temperature monitoring: auto-alarm when the set value is exceeded, and automatically cut off
the outlet power;
8. Auto-monitoring the level of acid, alkali and spray media;
9. Manual add acid and alkali  (via dosing pump);
10. Manual discharge of sewage (via sewage pump) and cleaning of spray system (via spray pump);
11. Auto-replenishment of tap-water (via feed-water valve);
12. Provide safe power supply (including phase-out and phase-sequence protection, Emergency power cuts, Leakage protection,
Main power control;
13. Safe light source (including adjustable white and non-UV yellow LED lights), external isolate installation;
14. Water shortage protection for sewage pump and spray pump; 15. Overheat protection for mechanical and
electrical equipment;
16. Alarm when sliding door in extra high position;
17. The exhaust air volume is controlled by electric regulating valve;
18. Other functions: water supply terminal, gas supply terminal and other experimental equipment can be installed according to
customers' demands.
 

2. Product Parameters
 

Model         Specification	WJ-1500A	WJ-1500B	WJ-1800A	WJ-1800B
External dimensions of equipment(mm)	1500(W)*1205 (D) *2400 (H)		1800(W)*1205 (D) *2400 (H)
Dimension of works pace (mm)	1260(W1)*780(D1) *1100 (H1)		1560(W1)*780(D1) *1100 (H1)
Panel material	20+6mm thick butterfly ceramics
Material of internal lining board	5mm thick ceramic fiber board
Diversion structure	Lower air return
Control system	Button control panel (LCD panel)
PH value control	The medium is alkaline water solution; manual monitoring, and manual control through acid pump and alkali pump.
Input power	Three-phase five-wire 380V/50A
Current for air fan	Not over 2.8A(380V or 220V can be directly connected)
Maximum load of socket	12 KW(total of 4 sockets)
Water tap	1 set (remote control valve + water nozzle)	No	1 set (remote control valve + water nozzle)	No
Water discharge way	Magnetic chemical pump strong discharge
Using environment	For non-explosion indoor use, within 0-40 degrees Celsius.
Applicable fields	Inorganic chemistry experiment; Food, medicine, electronics, environment, metallurgy, mining, etc.
Ways of Purification	Spray sodium hydroxide solution, no less than 8 cubic meters/hour		Spray sodium hydroxide solution.no less than 12 cubic meters/ hour
Ways of surface air speed control	Manual control (through the electric air valve to adjust the exhaust air volume or adjust the height of the moving door)
Average surface air speed	0.6-0.8 m/s Exhaust air volume: 1420-1890m3/h (when door height h =500mm)		0.6-0.8 m/s Exhaust air volume: 1760-2340m3/h (when door height h =500mm)
Speed deviation of surface air	Not higher than 10%
The average intensity of illumination	Not less than 700 Lux; Standard white and uv-free yellow LED lamps; The illumination is adjustable.
Noise	Within 55 decibels
Flow display	White smoke can pass through the exhaust outlet, no overflow.
Safety inspection	No spikes, edges; Charged body and the exposed metal resistance is greater than 2 mQ; Under 1500V voltage, no breakdown or flashover occurred for 1min test.
Resistance of exhaust cabinet	Less than 160 pa
Power consumption	Less than 1.0kw/h (excluding power consumption of fans and external instruments)		Less than 1.2kw/h (excluding power consumption of fans and external instruments)
Water consumption	Less than 3.2L/ h		Less than 4.0L/ h
Performance of wind compensation	With a unique wind compensation structure, the volume of the wind will not cause turbulence in exhaust cabinet and will not directly blow to the staff (need to connect to the air compensation system of the laboratory)
Air volume regulating valve	315mm diameter flanged type anti-corrosion electric air flow regulating valve (electric contact actuator)

3. Type of Fume Hood

General Lab Use: Conventional hoods found on Purdue's campus and are approved for general chemistry, radioisotopes, and carcinogen or toxic chemical work.

High Performance: These fume hoods have containment-enhancing features allowing them to operate at lower face velocities while protecting the operator. Since less room air is exhausted, energy is conserved. REM will tag high performance hoods with a special standard operating procedure sticker, informing users of the appropriate air velocity range determined by the University.

Perchloric Acid: Special hoods equipped with a stainless steel or PVC duct and properly timed water wash down system. The wash down system must be used following each use of the acid hood. Using perchloric acid in a general lab fume hood may cause the acid vapors to settle onto the ductwork and create explosive perchlorate crystals. Serious injury or fatality may result to hood users or maintenance staff if the acid crystals are exposed to vibration and detonate.

Polypropylene (Acid Resistant): Dilute acids may be used at room temperature in most fume hoods, but if you are performing acid digestion, heating, or working with concentrated acids such as: HF, Aqua Regia, Nitric Acid, Piranha Solutions, etc., acid resistant hood and ductwork is required. Strong acids are corrosive to the duct work found in general lab fume hoods. Fume hoods constructed from polypropylene material are long-lasting and designed to resist harsh chemicals for years.

Walk-In: Equipped with a floor-mounted design, walk-in hoods specialize in exhausting chemicals that are used alongside large laboratory equipment. When using a walk-in hood, close the bottom sash to the floor and only raise the top sash to REM's designated working height. Do not obstruct the area at the face of the hood.

Ductless Filtered: Designed to remove potential hazardous fumes and vapors from the work area as the exhausted air passes through absorbent material, such as activated charcoal. Occasionally, the REM department is asked to approve purchases of ductless, filtered fume hoods for use in research labs. We do not recommend ductless fume hoods. We do not believe ductless fume hoods provide reliable protection against chemical exposure, and think they may, in fact, give workers a false sense of security.

4. Detailed Photos

 

4. FAQ

1.     What will you be doing inside the hood?

Try to document as much as you can about the application. What chemicals are used, and how are they used? Is heat involved? What volumes of chemicals will be used at a given time? Most importantly, know the answers to the following questions:

• Do you use Perchloric Acid?
• Do you use Hydrofluoric Acid (HF)?
• Are you working with Radioisotopes and require the use of lead bricks?

2.     What size of fume hood do you need?

This is a four-part question:

   I. How wide do you want the fume hood to be?

   II. Will there be equipment enclosed in the hood?

   III. What are the dimensions of the equipment? This information is essential to determining how deep the hood needs to be to house your equipment. 

   IV. Do you need a bench-top or floor mounted hood? Applications that use extra-large equipment, such as 50-gallon drums, or applications that require equipment to be wheeled into the hood via a cart would require a floor mounted hood.  

3.     Do you require service fixtures or other accessories in the fume hood?

These include (but are not limited to) airflow monitors, electrical outlets, compressed air, laboratory gas, vacuum and cold water fixtures. Gooseneck faucets are also available. Finally, do the fixtures need to be factory installed, or will the installer handle that at the job site by using field-installed kits?

4.     What about required accessories outside of the fume hood?

• Do you need a work surface and base cabinets, or will you be using existing casework to support the hood? 
• If you do need base cabinets, do you need acid storage, solvent storage or non-chemical storage?
• Do you need ductwork from the hood to the roof, or will your HVAC contractor provide it?

5.     How will the fume hood be exhausted?

Every fume hood needs a blower, and it is often misconceived that a blower comes attached to a fume hood.

Will there be a dedicated blower (exhaust fan) for this hood, or will it connect to a central exhaust system?

If it connects to a central system, will it be constant volume or variable air volume?

If you already have a blower, and it is sized appropriately, you can stop right here: Contact Labconco if you'd like us to finalize your fume hood selection. 

6.     Do you need a built-in blower or a remotely located blower?

Built-in blowers are easier to install (and therefore less expensive), but they can be noisy and they put the ductwork under positive pressure, so they should be reserved for non-hazardous applications, short duct runs and instances where a remote blower cannot be installed (such as a mobile lab).

Remote blowers, though more complex to install, can be sized for the specific situation and keep the ductwork under negative pressure for safer operation.

7.     What is the layout of the duct run?

Will the duct go directly to the roof, or does it need to make some turns before reaching the roof? What diameter of duct will be used? Once the duct penetrates the roof, a final 90-degree elbow will be needed to turn the duct horizontal, then three to five feet of straight duct is needed between the elbow and blower.

Finally, the exhaust stack should include a zero-pressure weathercap (not a gooseneck, mushroom cap or anything that would block the exhaust from discharging in a vertical, up direction), and should terminate at least 10 feet above the roofline to allow the fumes to reach the airstream and not be returned into the building's air handling equipment.