Submersible pump common fault occurs

Common causes of submersible pump failure: First, the submersible pump start difficult or no water after starting. The main reason is: 1, the cable is broken, one phase is not energized or because the cable is too long (or too thin) caused by the voltage drop is too large; 2, the impeller is clogged with debris or rotation direction is not correct; 3, the motor stator winding burnout. Second, the submersible pump suddenly does not turn. The main reason is: 1, the power supply is cut off, the switch fuse blown or three-phase protection switch jump open; 2, the impeller stuck; 3, the motor stator winding resistance burn out. Third, submersible pump sound is not normal. The main reason is: 1, submerged depth is too shallow, the inhalation of air to form a vibration noise; 2, the bearing wear and rattle sound; 3, two-phase operation, the motor buzzing sound; 4, loose impeller; Hit book Zhen sound. Fourth, submersible pump stator winding resistance burn. The main reason is: 1, long-term overload motor running, pump deviate from the rated value is too large, the centrifugal impeller pump head is too low, increased flow caused overload. Axial impeller pump caused by overload too large head. When the amount of sediment in the water is large, the proportion of water increases causing overloading. 2, wet submersible pump motor is not irrigation, oil-filled submersible pump motor lack of oil, run winding windings. 3, single-phase motor start or single-phase operation. 4, frequent open pump stop, the motor overheating. 5, submersible pump dehydration work time is too long (more than 5 minutes). 6, the motor plunged into the mud, poor heat dissipation. 7, damaged cable or bad connector, water infiltration stator damp. 8, the cable is too long or too thin, the voltage drop is too large, so that the motor current increases. 9, impeller, pump shaft, diversion shell and bearing wear serious impeller stuck, power switch and no short circuit protection device, the stator winding resistance increases.

Basic Info.

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Q&A:

1.Are you manufacturer or trading company ?

ZHENJIANG RUNYANG Industrial Co.,Ltd is a professional manufacturer of Paint Brush and roller brush in China. Our factory locates in Zhenjiang City,Jiangsu Province. Meantime,we also trade some other tools and accessories in China.Since we have advanced management system, strong technical development and modern inspection instruments, our products have been exported to many countries and regions in Europe, America, Australia and Southeast Asia,mid-east region,India etc with good reputation.

2. What are your main products?

We manufacture and supply  paint brush.

3.How to order goods?

The way to process goods order is: Please offer us the inquire information including Product name or Description with Item No, Sizes,Purchase quantity,package way. Photo attached is better.We will offer your Quotation Sheet or Proforma Invoice within 24hours after receiving your order information. Then your comments on prices or payment terms,shipment terms are welcomed. Other details will be discussed accordingly.

4.Would you offer free samples?

we would like to build mutual benefit long term business relationship with our clients. Normally we could offer a few pcs samples for low unit price under USD5.0. those samples can be sent free of charge. But customers just need to bear a little shipping charge, or you can provide your DHL,FEDEX,UPS courier account number to us with freight collection.

5.How to pay for goods?

Basically, L/C, TT, Money Gram,Westen Union are preferred. Other payment terms can be discussed.

6. How to ship your order?

as discussed by both sides,We can ship small order by air or by Express agent, There are many international couriers for your option, such as DHL, Fedex, UPS and China EMS. If you already have account of DHL, UPS or other couriers, you can advise us in advance and we can send the goods under your account.

Other normal shipping way is by SEA.

7.Delivery time?

30-45 days after receiving down payment in normal season. It will be changed depending payment,transportation,holiday,stock etc.           

Round Brush

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