Fume hoods

FUME HOODS

APPLICATION:
The aim of chemical hoods is to protect users against harmful and unpleasant substances given off during the work done in the glove box. They are designed to be used in work on almost all types of solid, liquid, and gas chemical substances, exceptions being hydrofluoric acid and explosive substances, like ether. Due to the materials used to construct the working chamber and the ventilation duct, the hoods may be used when aggressive substances are dealt with for a long time, ones which are identified and carried outside the laboratory. Ventilation is forced by the connecting of a hood to the ventilation system of the plant where the laboratory is located.

TECHNICAL DATA:

- the structure of a fume hood is made out of metal sheets and steel sections coated with epoxide powder paint,

the window frame can be lifted, and the panes can be moved horizontally within the frame;
ceramic working plate; if required by the customer, a plate of other material may be installed;
the interior of the working chamber protected by epoxide paint or covered with ceramics;
the interior of the metal ventilation duct protected by epoxide paint or covered with polypropylene;
hydraulic system (water and gas valves, etc,),
wiring system (master switch, overcurrent switch, 4 sockets, lighting breaker switch, air-flow signalling device)
the fume hood fulfils safety requirements according to PN-EN 14175 and DIN 12924;
below the working plate the fume hood is equipped with laboratory cabinets or a cabinet for chemicals, featuring a fan independent of the plant’s ventilation system.

Dimensions of the fume hood:

length	1200mm	1500mm	1800mm	2100mm
depth	950mm	950mm	950mm	950mm
height	2400 /2950 mm	2400/2950 mm	2400/2950 mm	2400/2950 mm

Dimensions of the working chamber:

length	900mm	1200mm	1500mm	1800mm
depth	750mm	750mm	750mm	750mm
height	1210mm	1210mm	1210mm	1210mm

Diameter of the output stub pipe	Ø 158 mm	Ø 178 mm	Ø 198 mm	Ø 248 mm
Recommended amount of extracted air	580 m3/h	790 m3/h	965 m3/h	1185 m3/h

Connection of water, gas, etc.	G1/2	G1/2	G1/2
Maximum working pressure	0,4 MPa	0,4 MPa	0,4 MPa
Connection of a waste system	Ø 50 mm	Ø 50 mm	Ø 50 mm
Power supply with neutral earthing	230, 50Hz	230, 50Hz	230, 50Hz
Class of protection against electric shock	I	I	I

The fume hoods are supplied with a protective clamp for connecting an external equalisation line.

The fume hoods may be customised within the limits of technical possibilities.

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