Marine General Pump

CWZ Series Marine Horizontal General Pump – Versatile Self-Priming Solutions for Marine Applications

Product Overview
The CWZ Series Marine Horizontal General Pump is engineered for superior performance in diverse marine pumping applications. These robust self-priming centrifugal pumps are specifically designed to handle marine bilge water transfer, ship ballast water management, seawater cooling systems, marine fire protection, and vessel sanitation services. Constructed with corrosion-resistant materials suitable for seawater and freshwater applications, they efficiently transport fluids at temperatures up to 85°C, making them ideal for various vessel operations.

Featuring a practical horizontal design, these pumps offer straightforward operation, minimal maintenance requirements, and reliable performance. Their self-priming capability ensures quick startup and continuous operation, while the optimized hydraulic design delivers high flow rates, exceptional efficiency, and broad operational flexibility. These pumps represent the ideal solution for marine water supply and drainage systems across commercial and naval vessels.

Model Identification: 32CWZ-5

32: Inlet and outlet diameter (32 mm)
CWZ: Marine Horizontal Self-Priming Centrifugal Pump
5: Specific speed ratio integral value (impeller specific speed divided by 10)

Performance Specifications (50Hz & 60Hz Operations)

Model	Capacity (m³/h)	Head (m)	Motor Power (kW)	Efficiency (%)	NPSHr (m)	Weight (kg)
32CWZ-5	8 / 9.6	21 / 30.2	1.5 / 3	38	4	28
32CWZ-4	8 / 9.6	30 / 43.2	2.2 / 4	40	4	29
32CWZ-3	8 / 9.6	42 / 60.5	4 / 5.5	36	4	30
40CWZ-6	12 / 14.4	21 / 30.2	2.2 / 3	52	4	42
40CWZ-5	12 / 14.4	30 / 43.2	3 / 4	51	4	50
40CWZ-4	12 / 14.4	42 / 60.5	4 / 5.5	47	4	50
50CWZ-8	21 / 25.2	21 / 30.2	3 / 5.5	51	4	46
50CWZ-6	21 / 25.2	30 / 43.2	4 / 7.5	56	4	60
50CWZ-5	21 / 25.2	42 / 60.5	5.5 / 11	52	4	52
65CWZ-11	36 / 43.2	21 / 30.2	4 / 7.5	64	4	50
65CWZ-8	36 / 43.2	30 / 43.2	5.5 / 11	61	4	52
65CWZ-6	36 / 43.2	42 / 60.5	11 / 15	57	5	65
65CWZ-5	36 / 43.2	60 / 86.4	15 / 22	52	5	80
80CWZ-14	60 / 72	21 / 30.2	7.5 / 11	67	4	85
80CWZ-11	60 / 72	30 / 43.2	11 / 15	65	4	92
80CWZ-8	60 / 72	42 / 60.5	15 / 30	55	5	100
80CWZ-6	60 / 72	60 / 86.4	22 / 37	54	5	100
80CWZ-5.5	60 / 72	75 / 108	30 / 45	56	5	110
100CWZ-18	100 / 120	21 / 30.2	11 / 18.5	68	5	125
100CWZ-14	100 / 120	30 / 43.2	15 / 30	65	5	128
100CWZ-11	100 / 120	42 / 60.5	22 / 37	58	5	135
100CWZ-8	100 / 120	60 / 86.4	30 / 55	55	4	152
100CWZ-6	100 / 120	85 / 122.4	45 / 75	59	5	165

Key Features & Benefits

Self-Priming Capability: Automatic priming ensures quick startup and reliable operation
Corrosion-Resistant Construction: Marine-grade materials withstand seawater environments
High-Efficiency Performance: Optimized impeller design reduces energy consumption
Dual Frequency Operation: Compatible with both 50Hz and 60Hz power systems
Low NPSH Requirements: Excellent suction performance in various conditions
Compact Horizontal Design: Space-saving configuration for easy installation
Minimal Maintenance: Simple structure enables easy servicing and reduced downtime
Temperature Resilience: Handles fluid temperatures up to 85°C
Smooth Operation: Balanced design ensures vibration-free performance