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  DEV ENGINEERS
  Sales Office :
  402, Nandan Complex,
Opp. Railway Crossing,
Mithakhali, Ahmedabad - 380006.
Gujarat (INDIA)
  Tele-Fax :
  +91-79-26403839
  Call Us :
  +91-79-65495676
  Mobile :
  +91-98240-12742
 
E-mail :
  info@rotarygearpumpsindia.com
devpumps@dataone.in
info@devpumps.com 
 

Rotary Internal Gear Pumps / Fuel Injection Gear Pumps : Type : DFIG / KFIG

 

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The “ DEVPUMPS “/ “ DEV “ DFIG / KFIG -Series bracket mounted positive displacement Fuel Injection Internal Gear Pumps are specially design for fuel pressurizing or oil firing applications in Boilers, Burners, Heating Systems etc. Above pumps are self priming internal gear type design available with or without built-in pressure relief valve and external by pass arrangement. Shaft sealing is by Mechanical Seal for leak free operation.

 
  Application
 

The DFIG / KFIG series Fuel Injection Internal Gear Pumps are ideal for pumping all types Fuel Oils like LDO, FO, Diesel, Kerosene, HSD, LSHS for fuel pressurizing or firing application in Boilers, Oil Burner, Blower, Heating Pumping Systems, Thermic Fluid Heater etc. The pumps are also used in force feed lubrication system, as booster pump for diesel locomotive, Filter Pumping , Hydraulic drive etc. Above pumps are also used at Fuel Pump station for dosing or mixing of Fuel Additives, Ethanol in Diesel, Petrol as online.

Capacity in LPH

30 , 60, 90, 120, 150, 300, 450, 600, 1000, 1500, 2000, 2500, 3000, 4500, 6000 Liters per Hour

Pressure

up to 30 Kg / Cm2

Size       

¼”,  ½” , ¾”, 1” BSP Screw End Suction , Delivery and Bypass

Direction                Clock / Anti-Clock Wise Direction from shaft end
By-pass 

Internal , External Side or Top

Pump Speed

1440rpm , 2900rpm

 
ROTARY INTERNAL GEAR / LOBE TRACOIDIAL PUMP : Type DSIG

DSIG 40

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DSIG 10

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Cross DSIG

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The “ DEVPUMPS ” / “ DEV ” ‘s DSIG series are totally new pumping concept resulting in exceptionally reliable, economy & simple design. Advanced technology ensures accuracies in dimensions, interchangeability, pump characteristics and at the same time the cost of end product is considerably reduced than conventional pumps.
  Design Features :
 
In DSIG series, there are only two pumping elements in latest internal gearing cum lobe principle. The flow of liquid is axial through the elements. This results in unmatched suction characteristics that are impossible in double helical external gear pumps. Also there is only one shaft well supported at both ends of rotor for smooth, Silent, vibration-free running and eliminating bearing problems normally found in conventional gear pumps. Consequently, series DSIG series pump has a very low noise level. This series needs practically no maintenance and has much longer service life than other types.
  Advantages
 
The following advantages for DSIG Series Internal Gear Pump
  1. Single short shaft well supported by two self-lubricating bearings ensure high speed operation and vibration free running resulting in practically maintenance free pump with long service life.
  2. Unique pumping principle contributes to exceptionally high suction lifts and low noise level.
  3. Precision machined components guarantee high volumetric efficiency and overall efficiency.
  4. Internal gearing principle with axial flow ensures pulsation free continuous flow.
  5. Compact and lightweight design eliminates elaborate foundations.
  6. Single shaft design permits pump dismantling and without removing pump from base or disconnecting pipes. Pump can be serviced in place (Not possible in double helical gear pumps).
  Application
 

This DSIG series of Internal Gear pumps has been designed to handle fuel and lubricating oils as well as other fluids with similar properties. These pumps are therefore ideally suited for following typical applications:

  • Transfer of lubricating oils when emptying barrels and tanks.
  • Pressure lubrication and cooling of bearings, oil circulation through cooler, gear lubrications etc.
  • Transfer of fuel oils to daily service tanks, preheating, circulation etc.r lubrications etc.
  • Transfer of fuel oils to daily service tanks, preheating, circulation etc.
  • Boosting of fuel oil pressure for oil burner service and fuel injection pumps.
  • Unidirectional flow design for reversing shaft duties as in machine tools, gear boxes and crane duties
  Technical Data
 
Capacity Range

01, 2.5, 10, 15, 20, 40, 80, 125, 150, 175 Liters per Minute  @ 1440rpm50, 300, 450, 600, 1000, 1500, 2000, 2500, 3000, 4500, 6000 Liters per Hour

Pressure

Max. 8.0 Kg/Cm2

Size       

¼”, ½” , 1” & 1½” BSP Screw End Suction & Delivery

Direction                Anti-Clock Wise Direction from shaft end
By-pass / PRV       

Internal / In-built Pressure Relief Valve

Pump Speed

1440rpm

MOC      Std. C.I.
 
  Material of Construction
 

Standard                                           OPTIONAL
Pump Body       : Cast Iron                              Gun Metal, Bronze, CF-8 , CF-8M
End Covers        : Cast Iron                             Gun Metal, Bronze, CF-8 , CF-8M
Lobe with Rotor  : Sintered Powder              SS-304, SS-316
Shaft                  : En-8                                       SS-304, SS-304
Bushes             : Sintered Bronze                  Gun Metal, Bronze, Stainless Steel Sintered
Oil Seal             : Rubber Oil Seal                  Mech. Seal
P.R.V.              : Inbuilt ( Except DSIG-1 & 3)      ------

 

Characteristics / Performance Table of Internal Gear Pump Series DSIG
Based on SAE-40 Lubricating Oil having based on Viscosity 42.5 CST

Pump Model

Size SuctionxDelivery in Inch BSP Screw End ( F)

CAPACITY in Liters / Minute at 1440 rpm

Head / Pressure
Max.

Motor HP / Recommended at Pressure 3.0Kg/Cm2

Motor HP / Recommended at Max. Head / Pressure

DSIG-01

¼ “ x ¼”

01

8 kg/cm2

0.25 HP

0.25 HP

DSIG-03

¼” x ¼”

2.5

8 kg/cm2

0.25 HP

0.25 HP

DSIG-10

½” x ½”

10

8 kg/cm2

0.25 HP

0.5 HP

DSIG-15

½” x ½”

15

8 kg/cm2

0.5 HP

0.75 HP

DSIG-20

½” x ½”

20

8 kg/cm2

0.5 HP

1.0 HP

DSIG-40

1” x 1”

40

8 kg/cm2

0.75 HP

1.5 HP

DSIG-80

1 ½” x 1 ½”

80

8 kg/cm2

1.5 HP

2.0 HP

DSIG-125

1 ½” x 1 ½”

125

8 kg/cm2

2.0 HP

3.0 HP

DSIG-150

1 ½” x 1 ½”

150

8 kg/cm2

3.0 HP

5.0 HP

DSIG-175

1 ½” x 1 ½”

175

8 kg/cm2

5.0 HP

7.5 HP

 
  LQUIDS HANDLED BY EXTERNAL GEAR PUMPS

 

ADHESIVES

CORN SYRUP

FRUITS JUICES

ASPHALT

CRESOL

GLUES

BLOOD

CREOSOTE

GULCOSE

BLACK LIQUOR

DETERGENTS

GLYCERINE 

BITUMEN

DOP

GLYCOL

BUTTER

DOW THERM

GREASE

CASTOR OIL

ENAMEL

HOT OIL

CAUSTIC LYE

FATS

HONEY

COAL TAR

FATTY ACIDS

HYDRAULIC OILS

COCOA

FISH OIL

KEROSENE

COOKING OILS

FOAM

LACQUER

LACTIC ACID

PLASTICIZERS

SULPHURIC ACID

LAXTEX

PHENOL

SYRUP

LEAD

PRINTING INK

TALLOW

LINSEED OIL

RESIN

TAR (MOLTEN)

MILK

SAUCES

TRANSFORMER OIL

MINERAL OIL

SHELLAC

TURPENTINE

MOLASSES

SIZING LIQUID

VARNISH

NAPTHA

STARCH LIQUOR

VANASPATI

NAPTHELENE

SILICONE FLUIDS

VEG OIL

OLEIC ACIDS

SOAP

VINYL CHLORIDE

PITCH

SODIUM SILICATE

WAX

PAINTS

SOYA OIL

WHEY

PARAFIN WAX

STYRENE

 

PHOSPHORIC ACID

SUGAR SYRUP

 

 

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