DN25-DN200 Vertical Tank Internal Submerged Chemical Pump

Model NO. PWSCNY

Flow Range：1-500m³/h
Head Range：5-80m
Motor Power：0.55-75kw
Inlet/Outlet Range：DN25-DN200

Quantity

Vertical Tank Internal Submerged Chemical Pump

The PWS Vertical Submergible Pump is a corrosion-resistant pump designed for in-tank liquid transfer, with the motor and impeller fully immersed in the medium. As a submerged water pump, it combines vertical installation, compact design, and resistance to abrasive/corrosive fluids (e.g., sulfuric acid, sodium hydroxide), making it ideal for chemical processing, wastewater treatment, and industrial tank applications.

Key Features of the Submerged Water Pump

Vertical Immersion

Direct installation in tanks eliminates external piping and reduces footprint by 40% vs. horizontal pumps.

Anti-Overflow Port

Balances liquid level fluctuations to prevent spills during operation.

Corrosion Resistance

316L stainless steel or fluoroplastic-lined components withstand pH 0-14 media.

Dual Impeller Options
- Closed Impeller: 85% efficiency for clean liquids
- Open Impeller: Handles slurries with solids up to 10mm

Product Advantages

While submerged well pumps are typically designed for groundwater extraction, the PWS submerged water pump extends functionality to industrial tanks:

Application Focus

Transfers aggressive chemicals (e.g., HCl, NaOH) instead of groundwater.

Material Upgrade

Enhanced corrosion resistance vs. standard well pumps (cast iron/plastic).

Installation

Simplified vertical mounting in confined tanks vs. deep well boreholes.

Core Applications of the Submergible Pump

Chemical Processing

Circulation of sulfuric acid, hydrochloric acid, or catalysts in reactors.

Waste Management

Closed-loop recovery of waste alkali/acid or sludge transfer to filter presses.

Electroplating & Metallurgy

Handling abrasive slurries in surface treatment tanks.

Emergency Scenarios

Rapid drainage of sedimentation tanks as a submerged water pump.

FAQ

Q1: Can this pump run dry?

A： Thanks to its seal-less design, this vertical pump can withstand short periods of dry running without burning out mechanical seals from frictional heat generation. However, prolonged dry running is not recommended to prevent thermal deformation of internal pump components due to a lack of liquid cooling.

Q2: What are the advantages of a seal-less design?

A：The seal-less construction completely eliminates the wear and leakage risks associated with traditional mechanical seals. This significantly reduces routine maintenance costs, making it ideal and safe for handling highly corrosive, toxic, or volatile chemical fluids while protecting the operating environment.

Q3: Can this pump be installed outside the tank?
A：This pump is specifically designed for in-tank vertical immersion or mounting on top of the tank cover. If out-of-tank installation is required, an external circulation tank setup or a specialized out-of-tank vertical pump model should be selected.

PWS’s Vertical Tank Internal Submerged Chemical Pump, a variant of the Submergible pump designed for immersive operation within storage tanks, delivers unparalleled efficiency in handling aggressive chemicals, slurries, or high-purity fluids. By integrating directly into the tank, this submerged pump minimizes suction losses and ensures consistent flow rates, even with viscous or volatile media. For applications prioritizing water or low-viscosity fluids, the Submerged water pump variant emphasizes corrosion resistance and leak-proof design, while the Submerged well pump configuration excels in deep-well or underground fluid extraction, leveraging its vertical immersion to optimize pressure and suction capabilities. This technical overview outlines critical specifications to guide users in selecting the optimal PWS submerged pump solution for their chemical processing, water treatment, or well extraction needs.

Model	Inlet Dia. (DN)	Outlet Dia. (DN)	Power (kW)	Pole Number	50Hz Max. Flow Rate (m3/h)	50Hz Max. Head (m)
25NHCN-1/2	25	25	0.37	2	9	7
40NHCN-1	40	40	0.75	2	16	10
40NHCN-2	40	40	1.5	2	24	16
40NHCN-3	40	40	2.2	2	30	22
50NHCN-5	50	50	3.75	2	40	26
50NHCN-7.5	50	50	5.5	2	55	30
50NHCN-10	50	50	7.5	2	60	32
65NHCN-7.5	90	65	5.5	2	60	28
65NHCN-10	90	65	7.5	2	70	30
100NHCN-15	100	100	11	2	95	38
100NHCN-20	100	100	15	2	110	38
100NHCN-25	100	100	18.5	2	150	40
100NHCN-30	125	100	22	2	180	40

Note:

Custom materials, voltages, and special specifications for high head/large flow available. Max. specific gravity: 1.2

PWS’s Submergible pump for tank immersion integrates corrosion-resistant impellers, robust shafts, and leak-proof seals to handle aggressive chemicals. Submerged water pump variants use lightweight alloys for clean fluids, while Submerged well pump models feature abrasion-resistant casings for deep-well extraction. Each component is tailored to balance durability and efficiency across industries.

No.	Description	No.	Description	No.	Description
1	Motor	7	Upper Seat / Upper Base	13	Impeller Nut

2	Motor Adapter / Connector	8	Front Cover O-Ring	14	Nut

3	Ceramic Liquid Seal	9	Impeller	15	Screw / Bolt

4	O-Ring	10	Impeller Nut O-Ring	16	Impeller Key

5	V-Ring	11	Front Cover	17	Screw / Bolt

6	Main Body / Casing	12	Screw / Bolt

Proper installation of PWS’s Submergible pump for vertical tank immersion is critical to ensuring seamless performance in corrosive or high-viscosity chemical handling. Tailored for submerged operation, this pump’s design minimizes suction risks and ensures reliable flow. For Submerged water pump variants in clean water or low-risk applications, simplified mounting and alignment reduce setup time, while Submerged well pump configurations for deep-well extraction require precise depth calibration and anchor stability to withstand pressure and sediment exposure. This guide provides step-by-step insights to optimize installation for each PWS submerged pump variant, balancing safety, efficiency, and long-term reliability.

Installation instructions

1.When the pump is installed outdoors, it should be protected from rain;
2. The installationshould be level and fixed fimly to facilitate the normal operation of the pump;
3. When thepump conveys more than a certain vertical height, it is necessary to install a check valve;
4.Before installing and testing the pump, you should check whether the pipeline and powersupply line are in line with the motor's nameplate marking, and install overload protection toensure the safety of use;

5. The working liguid of the chemical pump is hazardous, and theoperator should wear appropriate protective gears to ensure the safety of the person.

6. Beforestarting the pump, please check whether the pipeline and line are correct.

PWS’s Submergible pump performance curves visualize flow, head to optimize vertical tank operations. For Submerged water pump models in clean water systems, curves highlight steady efficiency at standard depths. Submerged well pump variants for deep-well extraction reveal depth-pressure trade-offs, guiding users to balance performance and durability. These charts empower engineers to match PWS submerged pumps to process demands—whether for chemical resistance, water purity, or deep-extraction reliability—ensuring efficiency and longevity.

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