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CWZ Series Marine Horizontal Self-Primimg Centrifugal Pumps

Introduction:

CWZ series marine horizontal self-primimg centrifugal pumps are suitable to be ballast pump, bilge pump, cooling pump and fire pump. lt can transport seawater,fresh water and other incorrosive liquids.The medium temperature don't exceed 75℃.

The typical example and its explanation for the pump type

For example：32CW2-5
32-entrance diameter of the pump,mm
CWZ- marine horizontal self-primimg centrifugal pump
5-approximate value of pump's specific speed devided by ten

Characteristics parameters

If voltage is 440V, frequency is 60Hz, then footnote "1" added behindCWZ,as 32CWZ1一5.
Table1

Type	voltage 380V Frequency 50Hz
	Main technical Performance parameters
	Capacity m³/h	Head m	Speed r/min	NPSHr m	Shaft power kW	Matched power kW	Pump weight Kg
32CWZ-5	8	21	2950	4	1.2	1.5	28
32CWZ-4	8	30	2950	4	1.63	2.2	29
32CWZ-3	8	42	2950	4	2.54	4	30
40CWZ-6	12	21	2950	4	1.32	2.2	42
40CWZ-5	12	30	2950	4	1.92	3	50
40CWZ-4	12	42	2950	4	2.92	4	50
50CWZ-8	21	21	2950	4	2.35	3	46
50CWZ-6	21	30	2950	4	3.06	4	60
50CWZ-5	21	42	2950	5	4.62	5.5	52
65CWZ-11	36	21	2950	4	3.22	4	50
65CWZ-8	36	30	2950	4	4.82	5.5	52
65CWZ-6	36	42	2950	5	7.22	11	65
65CWZ-5	36	60	2950	5	11.31	15	80
80CWZ-14	60	21	2950	4	5.12	7.5	85
80CWZ-11	60	30	2950	4	7.54	11	92
80CWZ-8	60	42	2950	5	12.48	15	100
80CWZ-6	60	60	2950	5	18.16	22	100
80CWZ-5.5	60	75	2950	5	21.88	30	110
80CWZ-4	25	25	1450	5	4.05	5.5
100CWZ-18	100	21	2950	5	8.41	11	125
100CWZ-14	100	30	2950	5	12.75	15	128
100CWZ-11	100	42	2950	5	19.72	22	135
100CWZ-8	100	60	2950	4	29.70	30	152
100CWZ-6	100	85	2950	5	39.22	45	165
150CWZ-3.5	110	80	1450	5	43.56	55
125CWZ-23.5	160	20	2950	5	14.5	18.5
125CWZ-16.5	160	32	2950	5	22.1	30
150CWZ-13	200	20	1450	5	18.2	22

Continued table

Type	voltage 380V Frequency 50Hz
	Main technical Performance parameters
	Capacity量 m³/h	Head m	Speed r/min	NPSHr m	Shaft power kW	Matched power kW	Pump weight Kg
150CWZ-9	200	30	1450	5	29.7	37
150CWZ-7	200	45	1450	5	37.7	45
200CWZ-9	300	45	1450	5	52.5	75
200CWZ-16	250	17.5	1450	5	17	22
200CWZ-12	300	30	1450	5.5	35	45
200CWZ-11	250	30	1450	5	29.2	37
200CWZ-19	250	14	1450	4	13.8	18.5

Table2

Type	voltage 440V Frequency 60Hz
	Main technical Performance parameters
	Capacity m³/h	Head m	Speed r/min	NPSHr m	Shaft power kW	Matched power kW	Pump weight Kg
32CWZ1-5	9.6	30.2	3450	5.6	2.08	3	28
32CWZ1-4	9.6	43.2	3450	5.6	2.82	4	29
32CWZ1-3	9.6	60.5	3450	5.6	4.39	5.5	30
40CWZ1-6	14.4	30.2	3450	5.6	2.28	3	42
40CWZ1-5	14.4	43.2	3450	5.6	3.32	4	50
40CWZ1-4	14.4	60.5	3450	5.6	5.05	5.5	50
50CWZ1-8	25.2	30.2	3450	5.6	4.06	5.5	46
50CWZ1-6	25.2	43.2	3540	5.6	5.29	7.5	60

Table1

Type	voltage 440V Frequency 60Hz
	Main technical Performance parameters
	Capacity m³/h	Head m	Speed r/min	NPSHr m	Shaft power kW	Matched power kW	Pump weight Kg
50CWZ1-5	25.2	60.5	3450	7.0	7.98	11	52
65CWZ1-11	43.2	30.2	3450	5.6	5.55	7.5	50
65CWZ1-8	43.2	43.2	3450	5.6	8.33	11	52
65CWZ1-6	43.2	60.5	3450	7.0	12.5	15	65
65CWZ1-5	43.2	86.4	3450	7.0	19.5	22	80
80CWZ1-14	72	30.2	3450	5.6	8.84	11	85
80CWZ1-11	72	43.2	3450	5.6	13.0	15	92
80CWZ1-8	72	60.5	3450	7.0	21.6	30	100
80CWZ1-6	72	86.4	3450	7.0	31.4	37	100
80CWZ1-5.5	72	108	3450	7.0	37.8	45	110
80CWZ1-4	30	36	1740	7.0	7.0	7.5
100CWZ1-18	120	30.2	3540	7.0	14.5	18.5	125
100CWZ1-14	120	43.2	3450	7.0	21.7	30	128
100CWZ1-11	120	60.5	3450	7.0	34.1	37	135
100CWZ1-8	120	86.4	3450	7.0	51.3	55	152
100CWZ1-6	120	122.4	3450	7.0	67.77	75	165
150CWZ1-3.5	132	115	1740	7.0	79.7	90
125CWZ1-23.5	192	28.8	3450	7.0	25.1	30
125CWZ1-16.5	192	46.1	3450	7.0	38.3	45
150CWZ1-13	240	28.8	1740	7.0	31.4	37
150CWZ1-9	240	43	1740	7.0	51.4	55
150CWZ1-7	240	64.8	1740	7.0	65.2	75
200CWZ1-9	360	64.8	1740	7.0	90.8	110
200CWZ1-16	300	25	1740	7.0	29.2	37
200CWZ1-12	360	43	1740	7.7	60.2	75
200CWZ1-11	300	43	1740	7.0	50.2	55
200CWZ1-19	300	20	1740	5.6	23.7	30