Couping Self Priming Pump

We are offering jkb-h couping self priming pump 5-10hp.
1.type:
jkb 一 50 03 2 n b l 一 sch 6
⑴jkb一model no.
⑵outlet diameter: 40-1-12〞 50-2〞 80-3″
⑶power：01-1hp 02-2hp 03-3hp 05-5hp 75-7.5hp
⑷poles: -2:2p 4:4p
⑸rubber material: n-vbr e-epdm v-viton
⑹one-way valve: b-tongue-less a-with tongue
⑺l-low head h-high head
⑻shaft seal materials: ccs, cch, sch
⑼frequency: 5:50hz 6:60hz
features:
(1)coupling shaft design could improve the power of the pump and is easy to maintenance. With simple structure, easy assembly and low cost, this pump adopts frpp and vdf injection molding and could be used in chemical liquids. Unique design of shaft has self-priming ability. The check valve is designed to prevent liquid from backflow in the pump. Be suitable for conveying most parts acid and alkali liquor.
(2)the entrance should be equiped with check valve to prevent fluid backflow during downtime. The loss of liquid in the pump could cause the damage of idling.