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Flame Proof Electric Motors

Flame Proof Motors are manufactured to serve the industries such as, coalmines, refineries, petrochemical industries etc. ,where inflammable gases, vapours,fumes and coal dust are a natural atmospheric hazards.
The motors comply with Indian Standard Specifications IS:2148/1981 for Gas Groups I,IIA & IIB.

These motors can be used in all Division I and certain Division II areas as laid down in guide for selection of electrical equipment in hazardous areas as per IS:5571-1979.
Our Flame proof electric motors are being produced in modern and well equipped factory adopting latest techniques in designing and developing the motors , rigid quality control at almost all stages of production and latest testing facilities as per various National & International standards & have helped in raising the image of our FLP motors as a quality product making them acceptable to the various prestigious applications throughout the country.


Foot Mounted Flame Proof Electric Motor

Our Flame Proof Electric Motors are used for various Industrial applications like :
Plastic, Rubber, Textile, Machine Tools, Paper, Printing, Wire drawing, Cables Pharmaceutical Leather, Rolling Mill, Synthetic Yarn etc.

DESIGN FEATURES :

The flameproof enclosure consist of sturdy cast iron parts which are mechanically robust and very liberally designed.The case Iron enclosure of the motors is built to withstand any internal explosion. The gaps of joints and where the shaft passes through the frame are so dimensioned as to prevent transmission of igniting flame to the surrounding atmosphere. The motors are so designed that the frame temperature will remain below the ignition temperature of the gas-air mixture involved.
All cast iron parts forming the flameproof enclosure are tested at 14 kg./sq.cm.(10 kg/.sq.cm.required) hydraulic pressure. All the seats of joints are carefully machined to strict tolerances and rigidly inspected to ensure that permissible gaps are not exceeded.

CABLE ENTRIES :

The flameproof enclosure consist of sturdy cast iron parts which are mechanically robust and very liberally designed.The case Iron enclosure of the motors is built to withstand any internal explosion. The gaps of joints and where the shaft passes through the frame are so dimensioned as to prevent transmission of igniting flame to the surrounding atmosphere. The motors are so designed that the frame temperature will remain below the ignition temperature of the gas-air mixture involved.
All cast iron parts forming the flameproof enclosure are tested at 14 kg./sq.cm.(10 kg/.sq.cm.required) hydraulic pressure. All the seats of joints are carefully machined to strict tolerances and rigidly inspected to ensure that permissible gaps are not exceeded.

PERFORMANCE :

Performance is as per Indian Standard Specifications IS:3682-966 for motors used in underground mines and IS:325-1978 for other Industrial applications.

RANGE :

The motors are available in the range from 0.18 KW to 50 KW with various standard polarities i.e.from750,1000,1500 & 3000 RPM.They are available with std.supply voltage ie.400/440V at 50 Hzs.OR any other special voltage and/or frequency on request.

MOUNTING :

Standard mounting arrangements are foot mounted (B3 Construction) or flange mounted (B5 Construction ). Any mounting other than these can be considered on request.

DEGREE OF PROTECTION :

Motors are suitable for IP44. However, IP54 or IP55 can be provided on request.

APPROVAL CERTIFICATES :

  • CMRS – Dhanbad
  • D.G.F.A.S.L & I – Bombay
  • C.C.E. – Nagpur

GROUP OF ENCLOSURES SUITABLE FOR PARTICULAR FLAMABLE GAS OR VAPOUR AS PER is:2148:1981.

GROUP OF GAS OR VAPOUR ENCLOSURE :

[ I ] Methane ( Firedamp )

* Ammonia

* Decane

* Industrial methanel

* Benzene

* Blast furnace gas

* Xylene

* Carbon monoxide

* Cyclothexane

* Propane

* Acetone

* Butane

* Ethyl methyl ketone

* Pentane

* Methyl acetate

* Hexane

* Ethyl acetate

* Heptane

* n-Propyle acetate

* Iso-octane

* n-Butyl acelate

* Amyl acetate

* Chloroethylene

* Methanol

* Ethanol

* Iso-butanol

* Amyl alcohol

* Ethyl nitrate

[ IIB ]

* 1,3-Butadience

* Diethyl ether

* Ethylene

* Ethylene oxide

* Town gas +

 

[ IIC ]

Hydrogen

 

Industrial methane includes methane mixed with not more than 10 percent by volume of hydrogen.
+Town gas may contain not more than 57 percent by volume of hydrogen and not more than 16 percent by volume of carbon monoxide.the remainder being a mixture of paraffin hydrocations and inert gas.