Corrosion Resistant Sewage Pump

"PWF corrosion-resistant sewage pump is a horizontal centrifugal pump specially designed for the transportation of corrosive sewage media. It adopts advanced hydraulic model and corrosion-resistant material technology, and has the core advantages of efficient sewage discharge, corrosion resistance and wear resistance, and stable operation. This series of pumps are optimally designed for complex working conditions such as corrosive sewage, granular acid-base wastewater and industrial waste liquid in chemical, environmental protection, metallurgy and other industries, which can effectively solve the industry pain points of poor corrosion resistance, short service life and frequent maintenance of ordinary sewage pumps, and is an ideal choice for industrial corrosive sewage transportation.
The overall structure of the product is compact, the installation is convenient, and the back door design is adopted, so that the internal components can be overhauled and replaced without disassembling the pipeline, which greatly reduces the operation and maintenance cost. At the same time, different materials, sealing forms, motor power and installation methods can be customized according to the actual working conditions, so as to adapt to diverse application scenarios and meet the individual needs of different customers. "

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Product Description

Introduce the basic functions of the product.

1.Corrosion-resistant transfer: Conveys acidic/alkaline/saline sewage with solids without clogging.

2.Leak-proof seal: Special corrosion-resistant seal prevents medium leakage.

3.Stable operation: High-efficiency, energy-saving, with auto start-stop and overload protection.

4.Flexible adaptation: Multiple installation methods, easy disassembly and maintenance.

operational environment

1.Medium environment: Corrosive sewage (acid/alkaline/saline), wastewater with solid particles/fibrous impurities.

2.Temperature environment: Medium temp -10℃~80℃, ambient temp -20℃~45℃.

3.Installation environment: Indoor/outdoor (rain cover required for outdoor), chemical plants, sewage treatment plants, electroplating factories, etc.

4.Electrical environment: Suitable for three-phase AC power supply, places without strong electromagnetic interference or flammable and explosive gases.

Product advantage

1.Core Conveying Function
*Corrosion-resistant medium transfer for acidic, alkaline, and saline sewage.
*Large-channel impeller for passing solid particles and fibrous impurities without clogging.

2.Corrosion Protection Function

*Full flow path corrosion-resistant design (rubber-lined cast iron, stainless steel, engineering plastic).
*Special corrosion-resistant mechanical seal for leak-proof operation.

3.Operation Guarantee Function

*High-efficiency hydraulic model for energy saving.
*Automatic start-stop control with liquid level controller.
*Overload protection for motor and pump set.

4.Installation Adaptation Function

*Flexible installation: fixed (base type) or mobile (with cart).
*Compact structure for easy disassembly and maintenance.

technical parameter

type	PWF corrosion-resistant sewage pump
Material	"1. Material of overflow parts: cast iron rubber lining, 304 stainless steel, 316 stainless steel and engineering plastic (PP/FRPP). 2. Seals: fluororubber (FKM) and polytetrafluoroethylene (PTFE) 3. Pump shaft: stainless steel (2Cr13/304) "
Driver type	Direct drive of motor
Installation type	Fixed base installation
Maximum caliber	DN200(8 inches)
Maximum flow	600 m/h
Maximum head	50 m
Maximum power	75 kW
Protection level	IP55
Insulation class	F
Standard voltage	380V/50Hz 220V/440V/60Hz; 415V/50Hz

product usage

1.Chemical industry: Acid-base waste liquid, chemical wastewater transfer

2.Electroplating industry: Pickling & phosphating, heavy metal wastewater treatment

3.Printing & dyeing industry: Dye waste liquid, bleaching wastewater discharge

4.Pharmaceutical industry: Pharmaceutical intermediates, lab acid-base waste transfer

5.Metallurgical industry: Pickling wastewater, mineral processing slurry transfer

6.Municipal engineering: Chemical park, coastal saline-alkali sewage lifting

7Food processing: Acid-base cleaning, pickling wastewater treatment

Product operation guide

1.Installation Check：Secure installation, sealed pipes, correct valve status.

2.Pre-Start Prep：Fill pump with medium, exhaust air, check power and liquid level.

3.Start & Operation：Jog to confirm rotation, start no-load, open outlet valve slowly, monitor pressure and current.

4.Shutdown：Close outlet valve first, then cut off power. Drain and clean pump for long-term shutdown.

5.Daily Maintenance：Check seal and bearing regularly, replace wearing parts with suitable materials.

FREQUENTLY ASKED QUESTIONS

Common Problems	Core Causes	Solutions
Failure to start	Power failure, pump shaft jamming	Check power supply, remove foreign objects
Insufficient flow/head	Air intake, impeller clogging/wear	Exhaust air, clean/replace impeller
Seal leakage	Seal aging/damage	Replace seals
Severe vibration/noise	Unstable installation, coupling misalignment	Reinforce foundation, align coupling
Motor overheating	Overload, poor heat dissipation	Reduce load, clean heat dissipation holes
Rapid corrosion	Mismatched material and medium	Replace with suitable corrosion-resistant material