Heavy Duty Gear Pumps

APPLICATIONS :

• For loading unloading & transfer of all kinds of petroleum products and any kind viscous liquids for continuous uninterrupted service
• Seize from : ½” to 6 “ NB size flanged to ASA -150, B. 16.5 Class
• Capacity from 0.5 to 200 m3/hr, pressure up to 11kg/cm2
• Viscosity up to 1,00,000 cst, temp : up to 110°C
• Optionally available for high temperature up to 250° C

PUMP CHARACTERISTIC :

Gear pump is self priming positive displacement pump with positive pressure chart eristic. the capacity of pump is directly proportional to the speed and remain constant regardless of differential pressure the difference between theoretical and delivered capacity in the slip of the pump which depends up on the pump speed. Differential pressure viscosity of liquids working clearance & workman ship the pumps are capable of handling any viscosity the slip reduce with viscosity of the fluid share. The pump has a self priming capability however some net in let the pressure available must always equal or exceed to the pumps required NPSH to avoid cavitation depending up on the viscosity of the liquids to be pumped & pump speed.

INTERNAL POWERLOSSES :

The internal power losses in rotary in pump are made up of 2 types mechanical & viscous. The mechanical losses included all the power necessary to over the pump mechanical friction drag of all the moving parts within the pumps. The mechanical pump loss increase with increasing speed and viscosity depends on differential pressure, the viscous drag effects against all the parts as well as from the shearing action of the liquids itself this can be computed from the graph on this page

PUMP HORSEPOWER :

The break horsepower require to drive a rotary pump is the sum of the rhetorical liquids H.P and the internal power losses the orical liquids horse power is the actual work done in moving the fluid from its it let pressure condition to the pout let at discharge pressure condition and is product of constant
C=0.037(capacity – LMP, pressure kg/cm2) C = 2.3 (capacity GPM, pressure PSI)

PUMP SELECTION & USES :

Pump model PENX is self lubricated needle roller bearing type pump are used for clean viscous liquids having sufficient locating properly such as clean lube oil, gear oil, SAE lubricating oil for continuous duty however for inter mitten duty bush bearing type pump model PENX. Should be selected. pump model is used for liquids having low viscosity poor lubricating value or containing darts or impurities such as diary lube oil, crude oil, HSD, LDO kerosene sugar solution, varnish, wood pulp, fine powder etc for liquids which tends to solidify at room temperature such as asphalt, bitumen, castor oil etc. jacked pump model PENX should be selected to facilities the heating the pump by steam to facilities the heating the pump by steam or thermal fluid.

PUMP SPEED :

Pump model PENX are recommended to run at rated speed up to 500 cst viscosity between 500 to 1250 cst pump speed should be reduce up to 60% of rated speed for viscosity between 1250 to 2500 cst speed should be reduce up to 30% of rated speed.

INSPECTION & TESTING :

All the pump are assembled after due inspection of each & every parts they are tested for its performance in a accordance with JIS 8312-1976. We are also offered third party inspection of any consultant & inspection agencies.

Reliability in performance is one of main factor that influence your choice of pump efficiency is another factor which cannot be neglected. These are also chief consideration when it comes to handling viscous or semi viscous liquids PENX rotary gear pump is an obvious choice for the very reasons
All rotary twin gear pumps are proven for its reliability efficiency compactness and noiseless operation. These pumps have out classed conventional gear pump offering better overall performance at considerable reduced cost. Many imported & indigenous pumps are replaced with PENX pumps in power station, steel plants, refiners, oil installation cement plant and cargo ships.
PENX series rotary gear pumps are designed to offer further. simplicity with added reliability meeting international standard like DIN, API, JIS and above all the growing expectation of enlightened customer .
PENX series rotary twin gear pump offers with wide capacity range with option of self or independent lubricated, jacketed or non jacketed construction.

ADVANTAGES :

Double helical herringbone gear design ensures design no side thrust design to maintain constant volumetric efficiency by design low leakage path.
Modified profile teeth give low moment of interia, low frictional losses & enhance the tooth life.
Floating gear design ensures uniform matching equal load distribution & silent running.
Extra thick shaft with stands bending effectively, gives higher bearing life.
Sleeve on shaft make maintenance 3easy & economical.

Part list with material of construction :

Pump motor code:

Sign # indicates pump size

 (S-short, M- medium, L – long)