100% new product for wholesale industrial water pump

100% new product for   wholesale industrial pump 

1.Type:
JKB F 50 03 2  N B L S C S 5 C
JKB:Model No.

In-Outlet diameter: 40:1.5” 50:2” 75:3”
Power:0:1/2HP 1:1HP 2:2HP 3:3HP 5:5HP 7.5:7.5HP
Poles: 2:2P 4:4P
Rubber material: N:VBR E:EPDM V:VITON
One-way valve: B-tongue-less A-with tongue
L;Low Head H:High Head

Shaft seal materials: CCS, CCH, SCH
Frequency: 5:50HZ 6:60HZ
2.self-priming pump .Features:
This industrial pump adopts FRPP, PVDF material injection molding.
Has self-priming function. The check valve is designed to prevent liquid from backflow in the pump.
Be suitable for conveying most parts acid and alkali liquor.
The entrance should be equipped with check valve to prevent fluid backflow during downtime.

The loss of liquid in the pump could cause the damage of idling.
3 inch diameter models must have check valve, only using check valve it will has self-priming ability. 

3:JKB self-priming pump specification

1.There are four basic modes of transportation for your reference. They are water transport, rail transport,truck transport and air transport .

2.the industrial pump Packing in the 7 plys carton box.
2.Packed with board or plywood outside for protection.

Dongguan Jiekai Industrial Equipment Co., Ltd. is one of professional chemical pump manufacturer in china, company has more than ten years production experience,and has professional production lines ,self-research development and development ability and excellent after-sales service.

So Can I Just Start a Self-Priming Pump Any Time, Even If It's Dry Inside?

No. A self-priming centrifugal pump must have water in the casing in order to operate. You cannot pull any self-priming pump right out of the box, turn it on, and expect it to pump. If it's full of air, it won't prime. "Self-priming" refers to the pump's ability to repeatedly turn an air/water mixture into a pumpable fluid -- NOT the ability to create a vacuum (literally) out of thin air. In fact, you should never try to run a self-priming pump without water in the casing. It's dangerous and will often lead to seal failure.