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Horizontal electric pump units of NGN type

Application

Horizontal electric pump units of NGN type are intended for using in process installations of petroleum refining and petrochemical manufactures and also in other branches of industry for oil, petroleum products or other liquids pumping of similar physicochemical properties.

 

Electric pump units are intended for external installations and in locations where is possible by the operation conditions mixtures formation with air which are related to IIА, IIВ category and explosion safety groups Т1, Т2, Т3 and Т4 according to the State Standard 12.1.011-78.

 

 

Horizontal electric pump units of NGN type

 

Application

Horizontal electric pump units of NGN type are intended for using in process installations of petroleum refining and petrochemical manufactures and also in other branches of industry for oil, petroleum products or other liquids pumping of similar physicochemical properties.

 

Electric pump units are intended for external installations and in locations where is possible by the operation conditions mixtures formation with air which are related to IIА, IIВ category and explosion safety groups Т1, Т2, Т3 and Т4 according to the State Standard 12.1.011-78.

 

Operational field, QH

 

Technical characteristics

Unit type

Supply m3/h

Head

m

Performance index, %, no less 

Pressure at pump inlet (differential),

kgs/cm2 

Weight,

kg

Revolution,

r.p.m.

Cavitation

reserve, m,

no less

Drive capacity, kW

 

 

 

 

min

max

 

 

 

5,5

7,5

11

15

18,5

22

30

37

45

55

75

90

110

NGN35/70

35

70

55

1

20

1630

2950

4,3

+

+

+

+

+

+

 

 

 

 

 

 

 

NGN35/125

35

125

55

1

20

1750

2950

4,3

 

+

+

+

+

+

+

 

 

 

 

 

 

NGN35/240

35

240

55

1

20

2100

2950

4,3

 

 

 

 

 

 

+

+

+

+

+

 

 

NGN65/70

65

70

55

1

20

1630

2950

4,3

 

+

+

+

+

+

+

+

 

 

 

 

 

NGN65/125

65

125

55

1

20

1750

2950

4,3

 

 

+

+

+

+

+

+

+

+

 

 

 

NGN65/240

65

240

55

1

20

2100

2950

4,3

 

 

 

 

 

 

 

+

+

+

+

+

+

 

Design description

Pump units of NGN type are cradle-mounted, horizontal with single or double stages.

Pump running gear is placed on rolling-contact bearings lubricated with oil, which is delivered to the bearings over the drilled channels from the pockets, in which oil is supplied with the help of oil-feeding disks.

Oil in running post case, thrust bearing housing and pump post are refrigerated by water or diesel fuel supply in cavity of the respective parts under the temperature of operating fluid above 2000ºС.

Moreover, refrigerating fluid is supplied into the cavity, separating pump and running post, end seal cooler and end seal container pot cooler.

Direction of fittings axles: in outlet fitting is vertical, in inlet is horizontal or vertical.

Pumps components and subunits are unified.

Pumps performance is possible in two rotors modifications:

modification 1 -  supply 65 m3/h, modification 2 - supply 35 m3/h.

 

Seal

Shaft seal is face of «Tandem» type.

End seal gate liquid is mineral oil.

 

Overall and installation dimensions

gpr_ngn

Материал проточной части

Обозначение материала деталей проточной части

Материал

А

25Л ГОСТ 977-88

Д

15Х13Л ГОСТ 977-88

20Х13 ГОСТ 5632-72

К

12Х18Н9ТЛ ГОСТ 977-88

12Х18Н10Т ГОСТ 5632-72

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OAO "Turbonasos"
394052, Russia, Voronezh,
Ostrogozhskaya str, 107
Phone: +7 (473) 272-76-08

 

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