Oil centrifugal pumps are designed for use in industrial installations of refining and petrochemical industries, as well as in other sectors of the economy for pumping oil, petroleum products, liquefied petroleum gas and other liquids similar to the above by physical properties (specific gravity, viscosity and so forth) and corrosive effect on the material of pump parts.
The liquid must not contain more than 0.2% by weight of the suspended solid particles of size less than 0.2 mm.
Pumps manufactured in different climatic variations and different categories, designed for use outdoors and indoors, where working conditions can form explosive gases, vapors or dust mixture with air, and belonging to different categories of explosion hazard.
Types of the supplied pumps:
1. Oil cantilever pumps of types НК, НКЭ, НЭ.
The main parts of the pumps are made of cast iron and this determines the temperature capacity of the pumps.
НК pumps are designed for pumping liquids with temperatures from 0 ⁰С to 200 ⁰С, pumps НКЭ from 0 ⁰С to +80 ⁰С, and pumps НЭ - up to 100 ⁰С. It should be kept in mind that the suction pressure does not exceed 6 kgf/cm2.
Pumps of the НКЭ, НЭ are cantilever monoblock pumps with explosion-proof motor.
Due to the fact that the temperature of the flow at such design smoothly goes from the pump to the motor, allowing the heating temperature 80 ⁰С, the fluid temperature is limited to 80 ⁰С.
2. Oil cantilever pumps of type ТКА.
It is used in process plants for pumping oil, petroleum products, lubricants, liquefied petroleum gases, organic solvents and other liquids similar to the specified by viscosity and corrosive effect on pump parts, weighing not more than 1050 kg/m3.
Fluid temperature from -80 ⁰С to +400 ⁰С;
Submission from 12 to 1000 m3/h;
Pressure from 40 to 320 m;
Motor power from 5.5 to 1250 kW;
Material: carbon chrome steel, chrome nickel titanium.
3. Oil cantilever pumps of types НПС and НСД.
These horizontal eight-section pumps have horizontally split casing and one-sided input impellers. НСД doublecase pump provides pumping of working fluid with temperatures of up to 400 ⁰С.
Material of flow part - Steel 20Х13Л.
НПС monohull pump provides pumping working liquid with temperatures ranging from -30 ⁰С to +200 ⁰С.
Material of flow part - Steel 25Л-П
4. Oil cantilever pumps type Н.
Pumps of “H” type are horizontal multistage (two or four stages) - designed for pumping oil at a temperature of -3 to 200 ⁰С. One-sided impellers located on the shaft between the two outriggers; the body consists of two parts with a horizontal slot. The body and impeller are made of cast iron СЧЗО.
5. Oil cantilever pumps of types НД and НДС.
These are horizontal single impeller double-entry pumps designed for pumping oil at a temperature of -3 to 200 ⁰С and oil products with a temperature of up to 45 ⁰С. The shaft has outriggers; body consists of two parts with a horizontal slot.
6. Oil cantilever pumps types НВ and НА.
Artesian type oil pump type НА – is multistage pump for pumping oil from underground storage tanks containing solids up to 0.2 mm, the bulk density of which does not exceed 0.2%.
Fluid temperature from -15 to 80 ⁰С.
Material of flow part - cast iron СЧ20.
Vertical-type oil pump HB 50/50 is submersible single-stage pump designed for underground drainage tanks of a mixture of water and oil containing solids up to 1 mm, the bulk density of which does not exceed 1.5%.
Fluid temperature from -15 to +80 ⁰С.
Material of flow part - cast iron СЧ15, impeller - bronze.
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