DZ Series Marine Electric Piston Pump | Low Emulsification Bilge Transfer
A horizontal, single-cylinder piston pump designed for oily water. It handles fluids up to 85°C without creating emulsions. This pump is the ideal partner for oil-water separators and bilge management.
Accreditation and Certificates:
The DZ Series provides a specialized solution for marine pollution control. Standard pumps spin at high speeds. That speed mixes oil and water together, making separation difficult. Our DZ Series uses a horizontal, single-cylinder piston design. The stirring of oily wastewater is minimal, reducing emulsification.
Oil and water remain separate during transfer. Your oil-water separator works much better when fed by this pump. It handles bilge water, seawater, and fresh water with ease. The design accommodates liquid temperatures up to 85°C. It is built for fluids free of hard particles or fibers. Operators value its durability and economic benefits.
Technical Specifications：
| Model | Flow Rate (m³/h) | Discharge Pressure (MPa) | Suction Head (m) | Reciprocating Speed (strokes/min) | Inlet & Outlet Diameter (mm) | Motor Power (kW) |
| DZ-100 | 0.1 | 0.3 | 6 | 55 | 15 | 0.12 |
| DZ-250 | 0.25 | 0.3 | 6 | 56 | 25 | 0.18 |
| DZ-500 | 0.5 | 0.3 | 6 | 50 | 25 | 0.25 |
| DZ-1000 | 1 | 0.3 | 6 | 50 | 40 | 0.37 |
| DZ-2000 | 2 | 0.3 | 6 | 70 | 40 | 0.75 |
| DZ-3000 | 3 | 0.3 | 6 | 70 | 50 | 1.1 |
| DZ-4000 | 4 | 0.3 | 6 | 60 | 60 | 1.5 |
| DZ-5000 | 5 | 0.3 | 6 | 70 | 60 | 1.5 |
Key Features：
- Low Emulsification: Maintaining a negative pressure environment, avoiding stirring and reducing emulsification.
- High Efficiency: Improves the performance of oil-water separators.
- Temperature Resistant: Operates safely with fluids up to 85°C.
- Durable Build: High-quality manufacturing ensures long service life.
- User Friendly: Simple operation and easy maintenance access.
Applications：
- Oily Water Separation: Feeding mixtures to separation equipment.
- Bilge Pumping: Removing wastewater from the ship’s bottom.
- General Transfer: Moving seawater or fresh water between tanks.
- Wastewater Management: Handling grey water within temperature limits.
Installation & Maintenance：
Installation: Mount the pump on a rigid, flat foundation. Align the piping to reduce stress on the inlet. Install a strainer on the suction side to stop particles.
Maintenance: Check oil levels in the crankcase periodically. Inspect piston seals for wear if pressure drops. The simple layout makes parts replacement fast.
Custom Options Available：
We can configure the motor voltage (380V, 440V, etc.) to match your ship’s power grid. Material upgrades for higher corrosion resistance are available upon request.
FAQ ：
Q1: Why is this pump more suitable for oily water ?
A1: The high-precision fit between the plunger and cylinder body of the plunger pump maintains a good seal, reducing internal leakage under high pressure and ensuring a stable output of high-pressure fluid, while also preventing emulsification.
Q2: Can it handle dirty bilge water?
A2: Yes, but the water must not contain hard particles or fibers. You must use a strainer.
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