Rotary Gear Pump type 'NDX'
With timing gears & built in speed reducer & relief valve.
Material Of Construction :
Pump Body 1 C.S.
Front Cover 1 C.I.
Back Cover 1 C.I.
'V' Seal 4 N.R.
Seal Cover 1 C.I.
Washer 1 M.S.
Stator Shaft 1 EN-9, H&G
Wearing Plate 4 Pb Bronze
Mechanical Seal/GP 1 Sealol/Dura
Reducing Drive Gear 1 EN-36
Niddle Roller Bearings 9 IKO/INA
Rotor Shaft 1 EN-9, H&G
Hex Bolts 8 M.S.
Bearing Cover 2 C.I.
Timing Gear 2 EN-36.
Rotor Gear 2 EN-24.
Stator Gear 2 Nitrided
Uses :

Type "NDX" are bulk handling pumps used for loading, un-loading & transfer high volumes for vagon decanting cargo un-loading of various viscous liquid such as Edible Oils, Fuel Oils, Viscous Chemicals etc. Because of the in-built speed reduction, the pump can directly be coupled with the primover there by reducing the over all cost & space the timing gear reduces the noise level & enhances the working life of the pump.
AVAILABLE MODEL - SIZE - CAPACITY.
PUMP MODEL
&
SIZE		 Designed Cap.
at 960 RPM
Qd M3/hr		 Co-efficient of
Sleepage
Cs		 Viscouse
Power
Cs
NDX - 600 S
6" X 6" L		 90.35
115.35		 15.35
15.35		 10.50
12.50
NDX - 800 S
8" X 8" L		 145.50
220.50		 20.50
20.50		 13.95
15.65
NDX - 1000 S
10" X 10" L		 250.00
350.00		 25.40
25.40		 18.50
20.25
NDX - 1200 S
12" X 12" L		 500.00
700.00		 33.50
33.50		 22.50
22.50
Maximum Pressure Maximum Tempareture Maximum Viscosity
11 Kg / Cm2 110oC 1,00,000 CST
Flow & Power Calculation Chart :
Co-efficient of P
[Differential Pressure] Cd		 Co-efficient of Viscosity for leakage & extra power
Viscosity CST 1 10 35 75 150 350 600 850 1250
P kg/cm2 2 4 5 7 9 10 12 Leakage CL 2.75 2.00 1.50 1.20 1.00 0.85 0.70 0.65 0.60
Coeffi. of P 0.35 0.55 0.65 0.80 0.92 1.00 1.10 Power CP 0.40 0.55 0.75 1.00 1.25 1.85 2.25 2.65 3.25
AVAILABLE PUMP RPM WITH 1440 RPM PRIMOVER. [TO BE CORRECTED TO ACTUAL SPEED.]
Gear Ratio 17/35 18/34 19/33 20/32 21/31 22/30 23/29 24/28 25/27 26/26
Pump RPM 700 762 829 900 775 1056 1142 1234 1333 1440
Co-efficient RPM Cr 0.30 0.35 0.38 0.45 0.50 0.57 0.65 0.75 0.85 1.00
Qa
[Actual Flow]		 = Pump RPM X Qd - Qs
Where		 [Sleepage Flow]
Qs = Cs x Cd x Cl		 Pa
[Actual Power]		 = Pump RPM X Qd x P + Pv
[Viscouse Power]
wherePv = Cr x Cv x Cp
960 960 27
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