Wulff Oil Pumps

Oil-filled Submersible Pumps
Oil-filled Submersible Pumps
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Oil-filled Pumps
Oil-filled Pumps
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Oil-filled Submersible Centrifugal Pumps
Oil-filled Submersible Centrifugal Pumps
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QY Oil-filled Submersible Pumps
QY Oil-filled Submersible Pumps
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Self Priming Oil Pumps with High Quality
Self Priming Oil Pumps with High Quality
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Min Order Qty: 1 unit
Supply Capability: 100 unit/month
Single Stage Rotary Vane Vacuum Pumps with Oil
Single Stage Rotary Vane Vacuum Pumps with Oil
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Min Order Qty: 1 set
Supply Capability: 100000000 set/month
Magnetic Pumps
Magnetic Pumps
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Water Pumps
Water Pumps
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Sewage Pumps
Sewage Pumps
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Centrifugal Pumps
Centrifugal Pumps
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Min Order Qty: 1 Set unit
Supply Capability: 1000 Sets Per Year unit/month
Booster Pumps
Booster Pumps
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Centrifugal Water Pump, Diesel Water Pump, Oil Pump, Chemical Pump, Pumps Pirce Red
Centrifugal Water Pump, Diesel Water Pump, Oil Pump, Chemical Pump, Pumps Pirce Purple
Centrifugal Water Pump, Diesel Water Pump, Oil Pump, Chemical Pump, Pumps Pirce
Solar Pool Pumps Solar Power Pumps Solar Water Pumps
Solar Pool Pumps Solar Power Pumps Solar Water Pumps
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Min Order Qty: 1 set
Supply Capability: 1000 set/month
Centrifugal Water Pump, Diesel Water Pump, Oil Pump, Chemical Pump, Pumps Pirce Black
SG, SGR Pipeline Water Pumps
SG, SGR Pipeline Water Pumps
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Solar Pumps System
Solar Pumps System
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Min Order Qty: 1 Set unit
Supply Capability: 1000 Sets Per Year unit/month
Vertical Centrifugal Water Pumps
Vertical Centrifugal Water Pumps
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W Vortex Water Pumps
W Vortex Water Pumps
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Vacuum Pumps XDS
Vacuum Pumps XDS
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ISW Horizontal Centrifugal Water Pumps
ISW Horizontal Centrifugal Water Pumps
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Cutting Sewage Centrifugal Water   Pumps
Cutting Sewage Centrifugal Water Pumps
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Min Order Qty: 1 set
Supply Capability: 100 set/month
Glass Steel Centrifugal Pumps Model FS Glass Steel Centrifugal Pumps
Glass Steel Centrifugal Pumps Model FS Glass Steel Centrifugal Pumps
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Min Order Qty: 1 unit
Supply Capability: 5 unit/month
Water Pumps Serie Submersible Sewage Pumps From China On Sale
Water Pumps Serie Submersible Sewage Pumps From China On Sale
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Min Order Qty: 1 set
Supply Capability: 100 set/month
DC SOLAR Submersible  Pumps
DC SOLAR Submersible Pumps
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Chemical Pumps IH Series
Chemical Pumps IH Series
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Electrical Magnetic Pumps
Electrical Magnetic Pumps
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DC Solar Submersible  Pumps
DC Solar Submersible Pumps
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Flue Gas Desulphurization Pumps
Flue Gas Desulphurization Pumps
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Supply Capability: 5000 unit/month
Titanium Mining Centrifugal Slurry Pumps
Titanium Mining Centrifugal Slurry Pumps
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Min Order Qty: 1 set
Supply Capability: 1000 set/month
QDX.QX Series Submersible Pumps
QDX.QX Series Submersible Pumps
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Booster Water Pumps
Booster Water Pumps
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Diaphragm Metering Pumps Diaphragm Pumps Canada
Diaphragm Metering Pumps Diaphragm Pumps Canada
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Min Order Qty: 1 set
Supply Capability: 1000 set/month
XD series Vacuum Pumps
XD series Vacuum Pumps
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Supply Capability: -
Solar Panel Water Pumps Solar Power Pumps
Solar Panel Water Pumps Solar Power Pumps
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Min Order Qty: 1 set
Supply Capability: 1000 set/month

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FAQ

How to select hydraulic pump?
Select the hydraulic pump from the following considerations:1. hydraulic pump pressureHydraulic pump operating pressure is the pump (or motor) in actual work output (or input) oil pressure, determined by the external load.Rated pressure refers to the maximum pressure under continuous running in accordance with the test standards under normal working conditions. The size of the pump is limited by the service life, and the service life of the pump (or motor) will be shorter than the design life if it exceeds the rated pressure. When the work pressure is greater than the rated pressure, it is called overload.s
The suction pump has a nominal suction range of 30 metersHow deep can a well be sucked?Well, sixteen meters,
That is impossible. The suction height of the pump is caused by the centrifugal force of the vacuum. The water is sucked into the vacuums
What should I pay attention to when buying a pump?
Two, the first choice of large and medium-sized professional manufacturers, and through the quality identification of relevant departments, the market credibility of the better models, but also to the professional quality inspection institutions consultation.Three, check the motor grounding device for electric pump, water pump and motor axis, the motor should be in a proper position is provided with a grounding screw, and the grounding screw are arranged near the ground; grounding device of small submersible pump should be reliable and grounding wire, grounding wire cables should have the obvious grounding mark the flag should be in use; the motor is not easy to be worn during the period. This is one of the important safety indexes of electric pumps.s
Centrifugal pump flow, why can be adjusted through the outlet valve?
First of all, we know that pump according to the principle of work is divided into speed and volume type, centrifugal pumps are speed type, and reciprocating pumps are volume type.The centrifugal pump can adjust the flow through the outlet valve and outlet valve opening can determine the pump flow and head performance curve parameters such as specific relationship between the outlet flow and pressure can be provided by the data pump manufacturers endplate that even close the outlet valve of the pump pressure will also have a fixed value, but not allow zero flow pump operation, vibration caused by damage to the pump on the mechanical seal is not good and so easy to cavitation, set the minimum reflux line.s
The function of centrifugal pump
The basic structure of the centrifugal pump is composed of six parts, namely: impeller, pump body, pump shaft, bearing, sealing ring, stuffing box.1, the impeller is the core part of the centrifugal pump, it is high speed, large output, the impeller blade and play a major role in the impeller before assembly, through the static equilibrium experiment. The inside and outside surfaces of the impeller are required to be smooth, so as to reduce the friction loss of the water flow.s
Fire control center manual start fire pump directly, multi line control
The line between the fire pump buttons should be NHBVR-4*1.5 lines. 2 start, 2 answer. Some manufacturers reported that the 3 lines can also, this need to see which is the specific equipment. In addition, we need to introduce 2 warning buses.The above lines are individually distributeds
How many square cables does the submersible pump for 7.5KW need?
According to current I=13A, it is estimated that the cable is less than 10 square meters, so the cable cross section can be calculated at the ampacity of 5A per square meter. The square section of the cable is =13/5=2.6 square. According to the specifications series, optional 2.5 square aluminum cables. When the cable is longer, it is safer to choose 4 square aluminum cables.s
Why can't the inlet of centrifugal pump be negative pressure?
The entrance can be a negative pressure. You can often see someone pumping water from the pool. How can you pump water if it is not negative pressure?s

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