Product Details

ZWL series self-priming close coupled sewage pump is a simple installation of ZW shaft coupled self-priming sewage pump. Motor with long shaft is directly connected with impeller of pump without shaft coupling. So ZWL self-priming close coupled pump has compact structure, small volume, less vibration, good self-priming performance, strong sewage discharge capacity, high efficiency and energy saving etc. It is easy to use and maintain.

ZWL Self-priming close coupled dirty water pump has the structure of axial back mixing type with gas-liquid separation. So it has self- priming performance without bottom valve. (Only need irrigation water for the first time) and suction height is for 4 to 5meters.

Impeller flow channel has unique design so that larger solid particles or long fiber from the liquids can pass. So ZWL dirty water pump can used to convey wastewater, dirty water, sewage water containing solid particles, fiber, mixed suspension etc. impurity and impeller is not clogged.

ZWL dirty water self priming pump is widely used as the impurity sewage pump in municipal sewage works, pond culture, light industry, papermaking, textile, food, chemical industry, electric industry etc.

Pump material: cast iron for liquids (PH:6 to 9), stainless steel for liquids (PH: 2 to 13)

Medium weight density shall not exceed 1240 kg /m3.

Max. solid particles diameter is 60 percent of the pump diameter and the length of fiber is 5 times of the pump diameter.

Pump inlet /outlet: 25mm to 300mm

Flow: 8 to 800m3/h

Head: 15 to 80m

Power: 0.75 to 110 kw

Suction height : 4 to 7 meters (suction can be increased by installing bottom valve at the inlet end).

Model	Q(m3/h)	H(m)	Power(KW)	Speed(rpm)	Efficiency(%)	NPSHr(m)	Suction height(m)	Suck time(Min/5m)	Pump weight(KG)
ZWL25-8-15	8	15	1.5	2900	45	2	5	3	68
ZWL32-10-20	10	20	2.2	2900	45	2.5	5	3	68
ZWL32-9-30	9	30	3	2900	48	2.5	5	3	95
ZWL40-10-20	10	20	2.2	2900	45	2.5	5	3	68
ZWL40-20-15	20	15	2.2	2900	45	2.5	5	3	68
ZWL40-15-30	15	30	3	2900	48	2.5	5	3	95
ZWL50-10-20	10	20	2.2	2900	45	2.5	5	3	68
ZWL50-20-15	20	15	2.2	2900	45	2.5	5	3	68
ZWL50-15-30	15	30	3	2900	48	2.5	5	3	95
ZWL50-20-35	20	35	5.5	2900	48	2.5	5.5	3	140
ZWL50-20-40	20	40	7.5	2900	48	2.5	5.5	3	150
ZWL65-30-18	30	18	4	2900	45	2.5	5	3	125
ZWL65-25-30	25	30	5.5	2900	50	3	5	3	135
ZWL65-25-40	25	40	7.5	2900	50	3	5.5	2	140
ZWL65-40-25	40	25	7.5	2900	50	3	5	3	150
ZWL65-65-25	65	25	11	2900	50	3	5	3	200
ZWL80-40-16	40	16	4	2900	50	3	5	3	125
ZWL80-40-25	40	25	7.5	2900	50	3	5	3	140
ZWL80-25-40	55	40	7.5	2900	50	3	5	2	150
ZWL80-65-25	65	25	11	2900	52	3	5	3	220
ZWL80-80-35	80	35	15	2900	45	3	5.5	3	250
ZWL80-50-60	50	60	22	2900	55	3	5.5	3	300
ZWL100-100-15	100	15	7.5	1450	50	4	5	3	230
ZWL100-80-20	80	20	7.5	1450	53	4	5	3	230
ZWL100-100-20	100	20	11	1450	53	4	5	3	270
ZWL100-100-30	100	30	22	1450	53	4	5	2	320
ZWL100-80-45	80	45	30	2900	53	4	5.5	2	380
ZWL100-80-60	80	60	37	2900	53	4	5.5	2	430
ZWL100-80-80	80	80	45	2900	53	4	5.5	2	480
ZWL125-120-20	120	20	15	1450	55	4.5	5	2	380
ZWL150-200-15	200	15	15	1450	60	5	5	3.5	380
ZWL150-200-20	200	20	22	1450	60	5	5	3	420
ZWL150-200-25	200	25	30	1450	60	5	5	3	520
ZWL150-180-30	180	30	37	1450	65	5	5	3	580
ZWL150-180-38	180	38	55	1450	45	5	5	3.5	700
ZWL200-280-14	280	14	22	1450	65	5	5	3	600
ZWL200-300.18	300	18	37	1450	65	5	5	3	680
ZWL200-280-28	280	28	55	1450	55	4.8	5.2	3	820
ZWL250-420-20	420	20	55	1450	61	6	4.5	2.5	1020
ZWL300-800-14	800	14	55	1450	65	6	4.5	2.5	1200