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NW Low-Pressure Heater Water Drainage Pump is used for draining low-pressure heater watel in fire power generating plant. The pump has lower NPSH and Medium is saturated water, temperature ranges from 80℃ to 130℃.
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The NW Series Drainage Pumps are high-performance, industrial-grade pumps exclusively designed by SPMC for critical applications in fire power generating plants. Their core function is to efficiently drain low-pressure heater water, a key process in power plant operations. These pumps are engineered to handle saturated water—a common medium in power systems—with a temperature range of 80℃ to 130℃, ensuring compatibility with the harsh conditions of thermal power facilities. A standout advantage of the NW Series Drainage Pumps is their low NPSH (Net Positive Suction Head), which minimizes cavitation risks and guarantees consistent performance even in low-suction-pressure environments. Whether for routine drainage or emergency water removal in power plants, these pumps deliver reliable, long-term operation tailored to industrial needs.
The low NPSH design of the NW Series Drainage Pumps addresses a major pain point in industrial pumping: cavitation. By reducing the required suction head, the pumps avoid vapor bubble formation in the fluid, protecting internal components and maintaining steady flow—critical for uninterrupted power plant operations.
Optimized for saturated water (80℃–130℃), the pumps feature materials and internal structures that resist thermal stress. This ensures no performance degradation, leakage, or component wear even when handling high-temperature, phase-sensitive fluids.
With a Capacity of 36–315 m³/h and Head of 130–396m, the NW Series Drainage Pumps adapt to diverse low-pressure heater setups in power plants. Whether a small-scale auxiliary system or a large main drainage line, the series covers multiple operational requirements without needing custom modifications.
The pumps adopt a user-friendly structure with accessible components, reducing downtime during inspections or repairs. High-quality materials (e.g., corrosion-resistant alloys for internal parts) extend the service life, lowering total ownership costs for power plant operators.
Parameter | Specification |
Capacity | 36–315 m³/h |
Head | 130–396m |
Power | 30–450kw |
Sizes (Inlet/Outlet) | 80–250mm |
Speed | 1450–2950r/min |
Medium | Saturated water |
Medium Temperature | 80℃–130℃ |
Key Design Feature | Low NPSH |
SPMC prioritizes durability in the NW Series Drainage Pumps through strict manufacturing standards:
All components undergo precision machining to ensure tight tolerances and leak-free operation.
The series complies with industrial norms for power plant equipment, guaranteeing compatibility with existing systems.
A 1-year warranty covers material defects and manufacturing issues, providing peace of mind for industrial buyers.
Rigorous pre-delivery testing (including flow, head, and temperature resistance checks) ensures each pump meets performance specifications.
The pumps are specifically designed for fire power generating plants to drain low-pressure heater water. They can also handle other liquids with physical/chemical properties similar to saturated water (no solid particles).
Yes, but only liquids with properties matching clean water (e.g., boiler feedwater or hot water without solids). Do not use them for corrosive or solid-laden fluids.
Routine maintenance (filter cleaning, seal inspection) is recommended every 6 months. Major overhauls are typically needed every 3–5 years, depending on usage intensity.
SPMC provides installation guidelines in the product manual (included with purchase). For on-site support, contact our sales team to arrange professional assistance.
Standard models ship within 2–4 weeks. Customized versions (e.g., modified sizes or materials) may take 6–8 weeks.
Ready to enhance your power plant’s drainage efficiency with the NW Series Drainage Pumps?
Download the full technical datasheet: Click [SPMC NW SERIES.pdf] to access detailed drawings and performance curves.
Inquire now: Send us your project requirements (e.g., flow rate, head, or installation site) for a customized quote.
Add to Basket: Secure your pump today—minimum order quantity (MOQ) is 1 unit, ideal for both replacement and new power plant projects.
Contact our support team at [sales@spmc-pumps.com] for urgent questions or technical consultations.
