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| Material: | PP |
| Type: | Bypass Type |
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OSHA report released in 1990 revealed a following fact:
The average lifetime of laboratory personnel is 10 years less than that of normal people!
The reason directly refers to: Leakage rate of the fume hood in the laboratory.
The real safety index of the fume hood is the leakage rate, not the face velocity!
Evolution of leakage rate standard of fume hood:
| Standard | Stipulated leakage rate |
| 1985 USA ASHRAE 110-1985 | 0.5 PPM |
| 1995 USA ASHRAE 110-1995 | 0.05 PPM |
The sash is 5mm thick, tough-end glass panel, sliding up & down by belt & special counter-balance safety
device , all edges of sash is aerodynamic.
The worktop is made up of solid 15mm PP worktop.
With storage cabinet.
Face velocity is 0.5 m3/sec. minimum, when sash is opened at safe height.
Designed and manufactured as per ASHRAE110-2016.
Having the following service : 1 flourescent light built into 1 separate space.
1 No. remotecold water valve and outlet.
1 No. remote gas valve and outlet with safety function.
4 No. 10 Amp, 220V elect universal or UK/EU socket.
1 No LCD monitor which controls power, light, etc, or specified intelligent controller showing face velocity
and alarming having unproper airflow in working chamber.
With a small centrifugation fan and flexible pipe.
Location: our polypropylene fume hood is suitable for harsh working environment with higher requirement
on chemical resistance, or clean room etc requiring fume cupboards without metal exposed.
PP Acid Fume Scrubber:
This acid-base waste acid fume scrubber is made of PP material, and there are no metal components inside
the system. Therefore, the entire system has extremely high resistance to strong acidity and alkalinity.
1, Equipment composition: The equipment adopts a vertical cylindrical design and is equipped with a gas-liquid
reaction chamber, a reverse packing absorption system, a spray system, a dehazing device system, a liquid
circulation supply system, and an automatic dosing system (optional). It is also equipped with a supply system
Water tank, water supply pump system, peripheral windows, and air inlet and outlet ports.
2, The filtering filling layer adopts PP annular packing. The porosity of the packing material is above 0.85, which
not only provides a large contact area between the gas-liquid phase on the packing medium, but also ensures its
good gas passing performance.
3, The defogging layer uses high-efficiency defogging plastic mesh as the defogging agent, and its water vapor
removal rate can reach over 90%.
4, The circulating water pipe and the drainage pipe are both independent operating systems. The circulating water
pipe is made of PP material, and the drainage pipe is made of PVC material. The drainage pipe is designed as an
integral part of the anti overflow outlet; The nozzle of the water spraying system is a high-pressure spiral spray nozzle,
which is not easy to block, has a large spraying angle, and has uniform distribution of droplets.
5, The circulating water tank and spray tower adopt an integrated design, with water inlet, overflow prevention outlet,
and drainage outlet, and an automatic water stop device is installed at the water inlet.
6, The window adopts a circular design for observing the operation and maintenance of the equipment.
We can design unique acid fume scrubber for each client according to local condition including size and of
fume hood, installation position, as well as pipe length combined with used chemicals type etc.
SGS Test Report:
Normal drawing of fume hood:Lab accessories of fume hood:
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