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DN25-DN300 Split-type Self-priming Clean Water Pump

Model NO. PWSZX

Flow Range：3.2-600 m³/h
Head Range：12-80m
Self - Priming Lift：5m
Motor Power：0.75-110kW
Inlet/Outlet Range：DN25-DN300

Quantity

Designed to clear suction lines of air autonomously, self priming pump eliminate the need for manual setup. By combining centrifugal force with gas-liquid separation technology, the PWS Split Pump achieves high-speed priming (at heights ≤5m). This makes it a superior choice for variable water transfer tasks or systems requiring frequent, automated restarts.

Self Priming Water PumpAdvantage

Self Priming Efficiency

No bottom valve needed; retains residual liquid for instant restart.

Clear Water Pump Performance

Optimized for clean or mildly filtered water (e.g., irrigation, municipal supply) with minimal abrasives.

Flexible Installation

Adjust motor-pump distance via coupling to fit narrow spaces or retrofit old systems.

Vibration Control

Isolated motor-pump connection reduces resonance by 60%, extending seal lifespan.

Self Priming Pump Working Principle

Air Evacuation

Impeller rotation creates a vacuum, drawing air into the separation chamber.

Gas-Liquid Separation

Air escapes through the discharge port, while liquid recirculates to sustain suction.

Steady Flow

Operates as a standard clear water pump, delivering continuous pressure for applications like high-rise building supply or agricultural sprinklers.

Corrosion-Resistant Housing

Stainless steel critical parts ensure compatibility with clean water or mild pH fluids.

Self-priming Pump vs Non Self-priming Pump

FAQ 1: What is the maximum self-priming height and flow range of the PWSZX split-type clean water pump?

Answer:The PWSZX split-type self-priming clean water pump offers a self-priming lift of up to 5 meters. It features a wide flow range from 3.2 to 600 m³/h, a head range of 12 to 80 meters, and supports inlet/outlet sizes ranging from DN25 to DN300, making it suitable for various industrial and municipal water supply applications.

FAQ 2: Why choose a split-type design for this self-priming clean water pump?

Answer:Thesplit-type design of the PWSZX series allows for easier maintenance, inspection, and servicing of internal components without needing to completely disconnect the main pipeline system. This structural advantage significantly reduces operational downtime and lowers long-term maintenance costs for industrial water transfer projects.

FAQ 3: What are the main application scenarios for the PWSZX self-priming water pump?

Answer: The PWSZX series is engineered for high-efficiency clean water transfer. It is widely used in municipal water supply and drainage, agricultural irrigation, industrial booster systems, HVAC circulation, and emergency flood control where reliable self-priming performance is required.

Split-type Self-priming Clean Water Pump redefines reliability in clean water transfer applications, combining the advanced self-priming capabilities of a self priming pump with the efficiency and precision of a clear water pump. Designed for scenarios requiring rapid priming and uninterrupted flow, this pump ensures seamless operation even in installations with limited suction lift or intermittent water supply.The following table provides specific information for reference：

Model Meaning

Model	Inlet/Outlet Dia. (mm)	Flow Rate (m³/h)	Head (m)	Power (kW)	Speed (r/min)	Suction Lift (m)
25ZX(L)3.2-20	25/25	3.2	20	1.1-2	2900	5
25ZX(L)3.2-32	25/25	3.2	32	1.5-2	2900	5
32ZX(L)3.2-20	32/32	3.2	20	1.1-2	2900	5
32ZX(L)3.2-32	32/32	3.2	32	1.5-2	2900	5
32ZX(L)3.2-50	32/32	3.2	50	3-2	2900	5
40ZX(L)6.3-20	40/40	6.3	20	1.5-2	2900	5
40ZX(L)6.3-32	40/40	6.3	32	2.2-2	2900	5
40ZX(L)10-40	40/40	10	40	4-2	2900	5
40ZX(L)6.3-50	40/40	6.3	50	4-2	2900	5
50ZX(L)15-12	50/50	15	12	1.5-2	2900	5
50ZX(L)18-20	50/50	18	20	2.2-2	2900	5
50ZX(L)12.5-32	50/50	12.5	32	3-2	2900	5
50ZX(L)20-30	50/50	20	30	4-2	2900	5
50ZX(L)14-35	50/50	14	35	4-2	2900	5
50ZX(L)10-40	50/50	10	40	4-2	2900	5
50ZX(L)12.5-50	50/50	12.5	50	5.5-2	2900	5
50ZX(L)20-75	50/50	20	75	11-2	2900	5
65ZX(L)30-15	65/65	30	15	3-2	2900	5
65ZX(L)25-32	65/65	25	32	5.5-2	2900	5
65ZX(L)25-32	65/65	25	32	5.5-2	2900	5
65ZX(L)25-50	65/65	25	50	7.5-2	2900	5
65ZX(L)25-70	65/65	25	70	15-2	2900	5
80ZX(L)35-13	80/80	35	13	3-2	2900	5
80ZX(L)43-17	80/80	43	17	4-2	2900	5
80ZX(L)50-20	80/80	50	20	5.5-2	2900	5
80ZX(L)40-22	80/80	40	22	5.5-2	2900	5
80ZX(L)50-32	80/80	50	32	7.5-2	2900	5
80ZX(L)60-40	80/80	60	40	11-2	2900	5
80ZX(L)60-70	80/80	60	70	22-2	2900	5
100ZX(L)80-15	100/100	80	15	7.5-2	2900	5
100ZX(L)100-20	100/100	100	20	11-2	2900	5
100ZX(L)100-32	100/100	100	32	15-2	2900	5
100ZX(L)100-32	100/100	100	32	15-2	2900	5
100ZX(L)100-40	100/100	100	40	18.5-2	2900	5
100ZX(L)100-50	100/100	100	50	22-2	2900	5
100ZX(L)100-65	100/100	100	65	30-2	2900	5
100ZX(L)70-75	100/100	70	75	30-2	2900	5
150ZX(L)150-20	150/150	150	20	18.5-2	2900	5
150ZX(L)150-32	150/150	150	32	22-2	2900	5
150ZX(L)150-40	150/150	150	40	37-2	2900	5
150ZX(L)170-55	150/150	170	55	45-2	2900	5
150ZX(L)170-65	150/150	170	65	55-2	2900	5
150ZX(L)160-80	150/150	160	80	55-2	2900	5
150ZX(L)200-32	150/150	200	32	30-4	1450	5
150ZX(L)200-40	150/150	200	40	37-4	1450	5
150ZX(L)200-45	150/150	200	45	45-4	1450	5
200ZX(L)350-20	200/200	350	20	37-4	1450	5
200ZX(L)400-32	200/200	400	32	55-4	1450	5
200ZX(L)350-40	200/200	350	40	55-4	1450	5
200ZX(L)350-45	200/200	350	45	75-4	1450	5
200ZX(L)280-63	200/200	280	63	90-4	1450	5
250ZX(L)500-32	250/250	500	32	75-4	1450	5
250ZX(L)400-50	250/250	400	50	90-4	1450	5
300ZX(L)600-32	300/300	600	32	90-4	1450	5
300ZX(L)500-50	300/300	500	50	110-4	1450	5

Split-type 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.

PWS Split-type Self-priming Clean Water Pump delivers reliable and predictable performance, validated through its comprehensive performance curve—a critical tool for engineers and users seeking optimized system design.As a self priming pump designed for clean water applications, this curve illustrates how the pump balances flow rate, head pressure, and efficiency, ensuring seamless operation in scenarios where rapid priming and consistent delivery are paramount.

Every PUMPWISE Split-type Self-priming Clean Water Pump undergoes rigorous factory testing to ensure peak performance and reliability. Powered by a robust 30kW motor operating at a rated voltage of 380V, this model (150ZW180-30) features 150mm standard inlet and outlet ports designed for high-capacity fluid transfer. Backed by an exceptional motor efficiency of 97% under standard clean water conditions (20.0℃), our pumps deliver consistent, energy-efficient operation for your heavy-duty commercial and industrial water supply needs.

Reference Product Model: 150ZW180-30

Medium: Clean Water

Rated Voltage: 380V

Inlet Diameter: 150mm

Outlet Diameter: 150mm

Rated Power: 30kW (4-Pole)

Water Temperature: 20.0℃

Outlet Gauge Distance: 0.30 Motor

Efficiency: 97%

Split-type Self-priming Clean Water Pump prioritizes material excellence to deliver long-lasting performance in clean water transfer applications. As a self priming pump designed for rapid priming and reliable operation, it combines the precision of a clear water pump with the durability of industrial-grade components, ensuring compatibility with sensitive fluids such as potable water, agricultural irrigation sources, and light industrial liquids.

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WENZHOU PUMP WISE FLUID EQUIPMENT CO.,LTD

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Sales Manager：+39 389 949 9067

Sales Representative：+39 344 7395079
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winnie@pumppioneer.com

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