• Horizontal Three Screw Rotary Power Pumps System 1
Horizontal Three Screw Rotary Power Pumps

Horizontal Three Screw Rotary Power Pumps

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
5000 set/month

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Product Description

 Working Features  

  • Wide application, delivery all kinds of fluid media, even non-fluid ones

  • Bilateral rotation and delivery

  • Stable capacity and pressure, no pulse

  • Capacity is proportional to speed, so the pump can be used as dosing pump

  • Low operated noise, no-leakage and no temperature rise

  • Long life, low cost of operation maintenance

 Delivery Media  

  • Different viscous liquids, especially for the liquids with high viscosity which are difficult to be pumped. (up to 106 mm2/s)

  • Different dense liquids and dewatered dry medium

  • Liquids with solid particles (up to 70%), fibers (up to 350mm) and suspending media

  • Sensitive liquids that cannot be churned, sheared and compressed

  • Corrosive liquids (pH=0-14)

  • Fluid at high or low temperature (-10 – 150 C)

 Application Fields  

  • Environmental Engineering

  • Paper Making Industry

  • Oil Industry

  • Electrolyte Treatment

  • Mine Industry

  • Food Industry

  The Material of Components Depends on Medium Features    

  • Pump body (suction chamber, discharge casing and others) which connects with media:

cast iron, carbon steel, different stainless steel or flow surface plated with anti-corrosive materials are available;

  • Rotor: strong anti-abrasive alloy steel, different stainless steels and anti-corrosive alloy steel are available;

  • Stator: different rubber and other elastic materials are available;

  • Axial seal components: packing or mechanical seal according to your requirements.

Technical Data

   Parameter  



1. Specifications

Pump media

46 Lubrication oil

Shaft power

90 kW

Viscosity

46 cSt

Speed

1450 rpm

Rated capacity

50 cubic meter/h

Rated Pressure

35 bar

2. Structure

Type

Horizontal short shaft

Direction of rotation

Clockwise (see from driving end)

Pump body

Cast Iron

Shaft seal

Single side surface mechanical seal

Inlet

DN 200 mm, PN 1.6 MPa
Horizontal, Left hand side
(see from driving end)

Outlet

DN 200 mm, PN 4.0 MPa
Vertical, Upwards

3. Material

Pump body

Low carbon steel

Bush

Cast iron

Scroll cover

Cast iron

Single side surface mechanical seal

Rotor ring: SiC+C, Stator ring: SiC
O-ring: fluoro-rubber, Spring: SS304

Shaft

0Cr17Ni4Cu4Nb

4. Driving Motor

Model

Y280M-4

Voltage

380V/50Hz/3-phase

Power

90 kW

Protection level

IP55

Speed

1450 rpm

Insulation level

F

Q: Working principle and diagram of axial piston pump with pressure compensation variable
The size of the outlet flow pressure compensated variable displacement pump with outlet pressure of approximately in a certain range according to the constant power curve. When the pressure oil from the main part of the channel (a), (b), (c) into the inferior vena cava (d) variable shell, oil by the channel (E) respectively into the channel (f) and (H), when the spring force is greater than the oil (f) into the lower end of the piston ring servo hydraulic thrust area when the oil liquid (H) to the chamber (g), push the variable downward movement of the piston, the pump flow increases. As for the hydraulic servo piston end thrust force ring shaped area is greater than the spring when the servo piston moves upward, blocking channels (H), the (g) (I) through the cavity of the oil cavity pressure relief, at this time, the piston moves up, the variable head angle decreases, the pump flow rate decreases.
Q: Why should the pump be closed when the centrifugal pump is started?
Therefore to close the outlet valve, the pump during starting output water, the minimum pump power, when the pump reaches the rated speed, slowly open the outlet valve, gradually increase the flow of water, the motor current is gradually increased to the rated current.
Q: What is the pump lift voltage? And how to suppress the pumping voltage rise?
The reverse voltage and torque electric torque instead, and the motor has strong braking torque, forcing the rotor quickly stopped, but usually AC-DC-AC converter is the main power AC/DC rectifier circuit is irreversible, and therefore can not return to the power grid, resulting in the main circuit of the capacitor voltage increases two that is called the pump voltage.
Q: What does the pump mortar do?
1: 2 cement mortar or cement mortar with the same proportion of other components except coarse aggregate in the concrete, the pump piston and the inner wall of the pipeline are fully lubricated, and a layer of lubricating film is formed
Q: What is the dry running protector of screw pump? What's the principle and function? Thank you
When the temperature reaches a certain value, the signal is transmitted to the electric control box through a dry running protector, and the electric control box is used to stop the screw pump so as to protect the screw pump.
Q: What does "efficiency" mean in a water pump catalog?
The efficiency of the water pump nameplate refers to the maximum efficiency that the pump can reach at the rated speed
Q: The main factors affecting the performance of centrifugal pumps
The specific speed is deduced by the law of hydraulic similarity, and the similarity between the hydraulic characteristics of centrifugal pumps is similar. In centrifugal pumps, the specific speed is often interpreted as: the pump works at the highest efficiency, generating a lift of LM, a flow rate of 0.075m, and the power consumed by the /s at 0. 735kW
Q: What are the constant pressure pumps?
CatalogBooster pump definitionMechanical classification, methane booster pump, pneumatic booster pumpGas-liquid booster pumpAir booster pumpChlorine booster pumpWorking principlefunctionMechanical installationMechanical selection of booster pump definitionMechanical classification, methane booster pump, pneumatic booster pumpGas-liquid booster pumpAir booster pumpChlorine booster pumpWorking principle
Q: Centrifugal pumps for normal operation, is it reasonable to install valves on their inlet lines? Why?
Unreasonable, easy to produce throttling loss, pressure loss, pressure reduction, easy to cause cavitation
Q: What are the characteristics of the piston pump?
Piston pump is an important device of hydraulic system. It depends on the plunger in the cylinder in reciprocating movement, so that the volume of the sealing chamber volume changes to achieve oil absorption and oil pressure. Plunger pump with a rated pressure, compact structure, high efficiency and flow and easy adjustment, is widely used in high pressure and large flow and flow needs to adjust the occasion, such as hydraulic machine, engineering machinery and ships.

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