Flame Proof Heating Mantle



General construction of Flame Proof Glands are screwed into the terminal box. The construction of FLP-WP Heating Mantle is similar to normal heating mantle but difference is in construction of heating elements. Heating elements is Flame Proof by covering it in magnesium oxide powder and anti corrosive S.S. Tubing.

The heating element sheet is earth through junction box so that no sparking or short circuit is possible, even in the event of spillage.

   
   
Heater terminals terminating in FLP- WP junction box. The construction heating elements, terminating system shown in
Figure 1. Metal sheeted heating element produces uniform black heat. Fibreglass cloth is used to cover the heating element, ceramic insulating blanket, refractory insulator, glasswool etc is used for-insulation purpose.
   
   
Detail of heating elements fitting shown in Figure 2

All electrical controls , switches, indicating lamps etc fitted in FLP-WP switch enclosure. light weight LM-6 grade aluminium casting used for outer body of switch enclosure , cold junction box, thermostat regulator housing etc.
FLP-WP switch enclosure mounted on body of heating mantle.Thick gauge m.s.sheet used for outer body of heating mantle and paint
with decent industrial paint.

   
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 TECHNICAL INFORMATION

Cat No.
Capacity
No. Of Rotary Switch
No. Of Temp. Control
Wattage
Volts
FLP-HM 1
5 Litres
-
1
600 watts
230 volts
FLP-HM 2
10 liters
-
1
1000 watts
230 volts
FLP-HM 3
20 liters
1
2
2000 watts
230 volts
FLP-HM 4
50 liters
1
3
3600 watts
440 volts
FLP-HM 5
100 liters
1
3
5200 watts
440 volts
FLP-HM 6
200 liters
1
3
7200 watts
440 volts.

C.M.R.I. Certificate No. CMRI/TC/H-954 Date: 8.9.95

Temperatute Classification: T1, Group: IIA, and IIB

 


This figures have been taken from the Fire Protection Association booklet No.24-third edition. 'Industrial Solvents, Flammable Liquids & low Melting Point Solids'.

Flash Point:
The flash point of a liquid may be regarded as the lowest temperature at which a liquid gives off enough vapour to form an explosive concentration when exposed to a means of ignition which does not itself appreciably raise the temperature of the liquid.

Sponataneus Ignition temperature (Auto Ignition):
These figures give an idea of the temoperature at which , under ideal conditions, spontnaues or auto-ignition will occur.