Active Member
|
[China]
Address: T2-715, Landmark Plaza, High-Tech Zone, Chengdu, China
Contact name:Mike Ma
Chengdu Ample Import And Export Co., Ltd. |
|
|
Choosing the right fume hood for your laboratory can be a challenge,
and ductless fume hoods could be the solution you have been looking
for. Whether you are working in an educational laboratory or an
industrial location, having the right fume hood at your disposal is
crucial. This piece of equipment is so important for the safety of
your lab and your team, so choosing the right one is vital.
Also known as a recirculating fume enclosure or a filtered fume
hood, a ductless unit is self-contained and works to remove toxic
molecules, particles and vapour from the air. Having a chemical
fume cabinet is likely to be the most essential piece of safety
equipment your workplace can have. They clean the contaminated air
to deliver clean air back into the environment. Compared with other
types of chemical fume hoods, the ductless solutions can be more
cost-efficient, easier to install and don't require ductwork around
the building. Despite all these benefits, ductless fume hoods are
not suitable for every situation. There are a few factors that you
need to take into account before deciding if a this type of fume
cupboard is suitable for your laboratory.
| 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) | |||
Ductless fume hoods are used in various fields. Some of the most
common applications are the following:
The ductless fume hood should be located away from disturbing influences which could
cause drafts or affect air movement, such as open doors and
windows, and should not be located near areas of heavy pedestrian
traffic.
The owner shall ensure that records regarding the dates of
installation and filter changes, maintenance and repairs, operator
training, and chemical usage are maintained. These records shall be
made available to Occupational Safety upon request.
Filters shall be those recommended or supplied by the manufacturer
of the ductless fume hood only.
The owner shall ensure an evaluation of the filters after a spill
to determine if a change is required. Often the high concentration
of the spilled material is enough to saturate the filter, causing
the contaminant to be readily discharged from the hood, potentially
exposing the lab employee(s)
