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DN25-DN300 Direct-connected Self-priming Clean Water Pump

Model NO. PWSZXL

Flow Range：3.2-1200m³/h
Head Range：10-75m
Self - Priming Lift：5m
Motor Power：0.55-55kW
Inlet/Outlet Range：DN25-DN300

Quantity

An autonomous self priming pump streamlines operations by automatically removing air from suction pipes, ensuring seamless fluid flow without manual priming. The PWS Direct-Connected model features a robust direct-drive configuration that achieves a 5-meter suction lift without the need for a foot valve. Engineered for clean water and low-viscosity fluids, it merges high-speed priming capabilities with centrifugal power, making it a reliable solution for industrial, agricultural, and municipal water management.

Advantages of Self-Priming Pump

Direct-Drive Innovation

90%+ Transmission Efficiency: Motor-pump coaxial connection eliminates coupling losses, reducing vibration by 40% vs. traditional designs.
Maintenance Simplicity: Rear-access panel allows impeller/seal replacement without disassembling pipelines.

Clear Water Pump Optimization

Hydraulic Precision: Laser-welded stainless steel impeller minimizes turbulence, boosting efficiency 10-15% over cast iron pumps.
Zero Contamination: Smooth internal channels prevent sediment buildup, ensuring consistent clear water delivery.

Self Priming Pump Operational Principles

Vacuum Creation: Impeller rotation generates negative pressure, drawing air into the pump cavity.
Gas-Liquid Separation: Air escapes via discharge port while liquid recirculates to sustain suction.
Steady-State Operation: Functions as a high-efficiency self priming water pump , delivering up to 200 m³/h flow with minimal noise (<65 dB).
One-Time Priming: Initial water injection enables automatic operation for intermittent tasks like pipeline drainage.
Dual-Purpose Seals: Silicon carbide mechanical seals handle clean water and mild chemicals (pH 4-10).

Primary Industrial and Domestic Applications for Clear Water Pumps

Agricultural Versatility: Mobile sprinkler systems for hilly orchards or large-scale crop irrigation.
Industrial Reliability: Cooling tower circulation, pharmaceutical process water transfer.
Municipal Resilience: Stormwater harvesting, emergency flood drainage, and high-rise building pressurization.
Residential Solutions: Pool filtration, garden irrigation, and household water boosting.

Service & Support

Custom Engineering

Free on-site analysis for flow/pressure/piping optimization.

30% Faster Deployment

Pre-assembled modules slash installation time.

2-Year Warranty

Extended coverage for seals + 24/7 fault response.

Direct-connected Self-priming Clean Water Pump delivers robust performance through a meticulously engineered technical specification suite, tailored to meet the demands of rapid self-priming and reliable clean water transfer. As a self priming pump designed for efficiency and adaptability, its technical parameters align with the core requirements of a clear water pump—ensuring compatibility with low-solids water sources, minimal maintenance, and long-term operational stability across residential, agricultural, and light industrial applications..Here is the technical specification for reference:

PWS Direct-connected Self-priming Clean Water Pump is engineered with precision-selected materials to ensure optimal performance, durability, and safety in clean water applications. As a self priming pump designed for rapid priming and reliable operation, it leverages advanced materials that align with the demands of a clear water pump—delivering corrosion resistance, hygienic compatibility, and long-term reliability in environments where water quality and system longevity are critical.

Self-priming Clean Water Pump is engineered for hassle-free installation, combining the adaptability of a self priming pump with the precision of a clear water pump to simplify deployment in diverse applications. Designed for users prioritizing ease of setup, this self priming water pump eliminates complex priming procedures or specialized tools, enabling rapid commissioning in residential, agricultural, or light industrial settings.

1. Pump and motor are coaxial when they start in direct comnection.

2.Coupling is locked tightly by nut avoid vibration of impeller.

3 Pump inlet is higher centre line of pump shaft in order to keep rated deposit liquid to be self-priming and avoid try attrition of mechanical sea1.
4.Suction pipeline installation:
A Installation height of suction can not exceed 5 metres as possible.In allowed condition, the heigit is 1ower than lowegt deposit oil surface of oil waehouge as possible. Length of suction is shortened ad few winding unit is set as possible to shorten self-priming time and improve performance of cleaning cabin

B Leakage of suction pipeline is not permitted, such as no lealage of valve, flage in suction pipeline.

C Filter is set in suction pipeline avoid sucking solid and snndries, Efiicient flow square of filteris twice or three times of suction pipe section and often checked.

D .Pmmp can not support load of pipeline. Pipeline in suction and outlet should have their bracket.

5 Electrostatic resistance to earth in pump and pipeline reaches stated requirement when install oil pump.

6 .There are block and iron patch whether or not in pump case mnd pipeline when inustall.

7 .Adjust the installation and coaxial tolerance of coupling of pump and motor, The different axial toleranceis only allowed in 0.lmm., Conpling height tolerance of pump and motor can be adjusted by bronze cnshion or iron cushion on base plate.
8 Pump should be checked if there is ill condition after it operates for 3 -4 hours, meanwhile the temperatureof bear shonld be measured. Temperatmre of bearing, body ean not exceed 70 Celsins degree.

9.Cooled water connection is matched plastic pipe or glme pipe in-aperture 12 when cooled chamber is set in bearing body of pump. It's screw dimensionisM12 x 1.75.
10.Small vent-pipe shonld be set in outlet when one-way valve on outlet pipeline can not smoothiy drain air.

Direct-connected Self-priming Clean Water Pump offers a streamlined solution for clean water transfer, combining the efficiency of a self priming pump with the precision of a clear water pump to deliver optimized performance across diverse operating conditions. Its performance curve serves as a critical diagnostic tool, illustrating the pump’s ability to balance flow rate, head pressure, and energy consumption while maintaining rapid self-priming capabilities—a feature essential for applications requiring minimal downtime and reliable operation.

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Contact PUMP WISE

We Usually Respond Within 24 Hours Between Monday-Friday

WENZHOU PUMP WISE FLUID EQUIPMENT CO.,LTD

Self Priming Pump

Sewage Pump

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Sales Manager：+39 389 949 9067

Sales Representative：+39 344 7395079
salesmanager Whatsapp：+86 19518108981

winnie@pumppioneer.com

NO. 8, NORTH ROAD, PUMP AND VALVE INDUSTRIAL ZONE, DONGOU HETIAN INDUSTRIAL ZONE

Motor & Electronic Control

IBAN: LU814080000047209734

Account Holder Name: PUMP WISE FLUID EQUIPMENT CO., LTD

Currency of Receipt: EUR GBP PLN

Bank Name: Banking Circle S.A.

Bank Location: Luxembourg

Bank Address: 2 Boulevard de la Foire L-1528 Luxembourg Luxembourg

Account Type: checking

Swift Code: BCIRLULL (BCIRLULLXXX, if 11 characters are required)