Navyug Conveyor Belts Navyug Belts
 

Technical Characteristics

 
SERVICE FACTORS (SF)
 
Speed Increasing Drives -Multiply SF by SR Factor  TYPES OF PRIME MOVE

 SR Factor
 Speed Ratio. 1.00 to 1.24 -Nil
 Speed Ratio. 1.25 to 1.74 -1.05 Speed Ratio. 1.75 to  2.49 - 1.11
 Speed Ratio. 2.50 to 3.49 -1.18
 Speed Ratio. 3.50 to over -1 .25 

 Soft Start
 Electric Motor
 AC-StarDelta Start
 DC-Shuntwould
 I.C. Enignes with 4 or more cylinders
 All prime movers fitted with soft starters.
 centrifugal clutch.
 Fluid powder coupling.

 Heavy Start
 Electric Motor
 AC-Direct on line start
 DC-Series & compound wound
 I.C. Engines with less than 4  cylinders.

Types of Driven Machines Hours per Day Duty
Upto 10 Over 10 to 16 Over 16
Hours per Day Duty
Upto 10 Over 10 to 16 Over 16

 LIGHT DUTY
 Conveyors (uniform load) Exhaust Fans
 (max  7.5 kw)
 Blowers, Pumps, Compressors
 (Centrifugal) Generators.
 Shifters (Light), Agitators (Liquid)

1.0 1.1 1.2 1.2 1.2 1.3

 MEDIUM DUTY
 Agitators & Mixers, Compressors ( with 3, or more  cylinders)  Rotary pumps, Conveyors  (non-uniform load).  Washing  Machine, Line Shafts, Printing Machines &  Screens.

1.1 1.2 1.3 1.3 1.3 1.4

 HEAVY DUTY
 Pumps, Compressor, (Reciprocating)
 Bucket Elevator,  Rotary Pumps,
 Conveyors, Hammer Mills, Rubber Mixers. Pulverisers,  Vibrating Screens, Textile Machinery.

1.2 1.3 1.4 1.4 1.5 1.6

 EXTRA HEAVY DUTY
 Crushers (Gyratory, Jaw, Roll) Mills
 (Ball, Rod, Tube).

1.3 1.4 1.5 1.5 1.7 1.8
 
«Prvs