Multi-stage Clean Water Pump

This multi-stage clean water pump is designed specifically for secondary pressurization in diaphragm filter presses. It utilizes multi-stage centrifugal boosting technology, achieving stable high-pressure output through a series of impellers.

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Product Introduction

This multi-stage clean water pump is designed specifically for secondary pressurization in diaphragm filter presses. It utilizes multi-stage centrifugal boosting technology, achieving stable high-pressure output through a series of impellers. The pump body is constructed of corrosion-resistant cast iron or stainless steel, making it suitable for high-frequency industrial applications. It easily handles pressures of 0.5-3.0 MPa and significantly improves filter press dewatering efficiency.

Core Advantages

High Pressure and High Efficiency

The multi-stage impeller provides progressive pressure boosting, resulting in stable and strong outlet pressure, allowing for rapid, deep dehydration of the filter cake and reducing moisture content.

Energy and Power Saving

The optimized hydraulic model reduces energy consumption by 15%-30% compared to traditional single-stage pumps, resulting in lower operating costs.

Long Life and Low Maintenance

The modular design ensures wear-resistant and corrosion-resistant key components, allowing for quick assembly and disassembly for maintenance, reducing downtime by 50%.

High Adaptability

Flow rates from 3-200 m³/h are available, with flexible and adjustable pressures, perfectly matching the needs of different diaphragm filter press models.

Main Applications

Environmental Protection

Sludge Dewatering, Filter Press Treatment in Wastewater Treatment Plants

Mining and Metallurgy

Tailings Dry Discharge, Concentrate Concentration

Chemical Industry

Crystallized Solid-Liquid Separation, Waste Slag Pressing

Food and Pharmaceutical Industry

Fermentation Slag Dewatering, Pharmaceutical Slag Pressing and Recovery

Parameter Information

Multi-stage clean water pump (squeezing pump)
Model	Flow m³	Head m	Power KW	Inlet/Outlet mm	Dimensions L x W x H mm
CDM3-27FSWPC	3	162	3	DN25	250×240×1137
CDM5-27FSWPC	5	168	4	DN32	250×240×1329
CDM10-17FSWPC	8	169	7.5	DN40	280×290×1285
CDM10-18FSWPC	10	163	7.5	DN40	280×290×1315
CDM15-13FSWPC	12	160	11	DN50	300×290×1510
CDM15-14FSWPC	15	165	11	DN50	300×290×1550
CDM15-15FSWPC	18	161	15	DN50	300×290×1600
CDM20-14FSWPC	20	168	15	DN50	300×290×1555

Frequently Asked Questions

Our popular products include: vehicle-mounted sludge solidification units, diaphragm filter presses, sludge dewatering machines, as well as engineering design and installation services for municipal sludge and sand-washing sludge treatment.

How to choose the right filter press model based on material properties?

Selecting a filter press model depends on key material properties: particle size (to determine filter cloth mesh), viscosity (affects required pressure), corrosiveness (dictates filter plate material, e.g., PP for mild corrosion, stainless steel for strong), and solid content (influences filtration area and cycle time). High-solids materials need larger filtration areas, while abrasive materials require wear-resistant plates. Match pressure ratings to material viscosity—thicker slurries need higher pressure (1.0–2.5 MPa) for effective dewatering.

What to do if filter plates leak?

First, stop operation and check:

Filter cloths: Replace damaged or misaligned cloths that disrupt sealing.
Filter plate seals: Inspect for cracks, wear, or debris; clean seals or replace plates if damaged.
Pressure imbalance: Ensure uniform pressure across plates (adjust hydraulic system if uneven).
Plate alignment: Realign plates if shifted during operation. Test with low pressure after fixes to confirm leaks are resolved.

Do filter cloths need regular replacement? How often?

Yes, filter cloths require regular replacement as they clog, tear, or degrade over time, reducing filtration efficiency. Frequency depends on material: 4–8 weeks for abrasive/viscous materials (e.g., mining slurries); 3–6 months for less harsh materials (e.g., food-grade liquids). Signs to replace early: slower filtration, increased pressure, or visible damage (holes, fraying).

Is installation and operation training provided after purchase?

We offer installation and operation training post-purchase. This typically includes on-site installation guidance, hands-on operation training (e.g., setting parameters, troubleshooting), and documentation (manuals, video tutorials). Some provide follow-up support for 1–3 months to ensure operators master key functions, especially for automated or custom models.

If the power supply is not the issue, how to fix the machine tripping and shutting down?

Check these common causes:

Overload: Motor may be overworked (e.g., excessive slurry feed); reduce load or inspect for jammed components (e.g., filter plate movement).
Faulty sensors: Pressure or temperature sensors may trigger safety shutdowns; calibrate or replace malfunctioning sensors.
Hydraulic system issues: Low oil level or clogged filters can cause pressure spikes; check fluid levels and clean/replace filters.
Electrical connections: Loose wires in control panels may interrupt power; tighten connections and inspect for short circuits.