W Single-Stage Cantilever Vortex Pump

W Single-Stage Cantilever Vortex Pump

W Single-Stage Cantilever Vortex Pump | High-head, low-flow vortex transfer

  • Vortex high-head: For low-flow, high-head duty.
  • Self-priming effect: Supports suction-lift operation.
  • Seal options: Packing or mechanical seal.
  • Compact service build: Small footprint, easy maintenance.
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Product Overview

W Single-Stage Cantilever Vortex Pump is a horizontal, single-stage, single-suction vortex centrifugal pump designed for handling liquids containing solids, fibers, and suspended impurities without clogging.

It solves blockage, entanglement, and solid-handling limitations commonly encountered in conventional centrifugal pumps.

It is applied in wastewater transfer, industrial slurry handling, chemical process drainage, and solid-laden liquid conveying systems.

✔ Engineered for stable non-clogging performance in solid-laden and fibrous liquid handling applications.

Model Designation

W Single-Stage Cantilever Vortex Pump

Applications

Typical Operating Conditions

  • Municipal wastewater containing suspended solids
  • Industrial slurry with fibrous impurities
  • Food processing waste liquid transfer
  • Chemical drainage with sediment particles
  • Mining process tailings liquid handling

Engineering Advantages

Structural Logic & Engineering Result

  • Vortex impeller recessed design minimizes direct contact between solids and impeller, reducing clogging risk.
  • Large flow passage casing geometry enhances solid passing capability.
  • Cantilever shaft design without submerged bearing improves maintenance accessibility.
  • Single-stage hydraulic structure ensures stable flow and predictable performance curve.
✔ Engineered for non-clogging performance and stable solid-handling operation in demanding wastewater and slurry systems.

System Components

W Single-Stage Cantilever Vortex Pump ：

  • Pump casing
  • Vortex impeller
  • Pump shaft
  • Bearing housing
  • Mechanical seal / Packing seal
  • Coupling
  • Base frame

Technical Specifications

Service Conditions

Suitable for liquids containing soft solids, fibers, and suspended particles without severe abrasion.

Operating Conditions

  • Flow Rate: 0.72 – 14.4 m³/h
  • Head: 20 – 120 m
  • Power Range: 0.75 – 11 kW
  • Speed: 2900 rpm
  • Liquid Temperature: ≤ 80°C
  • Working Pressure: ≤ 1.0 MPa

Detailed parameter tables are provided below.

Specifications & Installation

Outline Drawing

W Single-Stage Cantilever Vortex Pump Structure

Performance Data

1 Pump casing
2 Pump cover
3 Impeller
4 Bracket assembly
5 Pump shaft
6 Jaw-type flexible coupling
7 Special cartridge mechanical seal assembly

Performance Parameters

Model Flow Rate (m³/h) Head (m) Voltage (V) Speed (r/min) Power (kW)
20W-20 (single-stage) 0.72 20 220/380 2900 0.75
20W-65 (single-stage) 0.72 65 380 2900 2.2
25W-25 (single-stage) 1.44 25 220/380 2900 0.75
25W-70 (single-stage) 1.44 70 380 2900 3
32W-30 (single-stage) 2.88 30 380 2900 1.5
32W-75 (single-stage) 2.88 72 380 2900 4
32W-120 (single-stage) 2.88 120 380 2900 5.5
40W-40 (single-stage) 5.4 40 380 2900 4
40W-90 (single-stage) 5.4 90 380 2900 7.5
50W-45 (single-stage) 9 45 380 2900 5.5
65W-50 (single-stage) 14.4 50 380 2900 11

How to Select a Pump Model

  1. Determine required flow rate and system head based on pipeline resistance calculation.
  2. Confirm maximum solid particle size and fiber content.
  3. Evaluate liquid density and viscosity for motor power correction.
  4. Check installation layout and shaft orientation requirement.
  5. Select sealing configuration according to leakage tolerance and medium characteristics.
✔ Proper model selection must be based on duty point calculation and medium characteristics to ensure stable non-clogging operation.

Engineering Notes

  • Vortex impeller clearance must be verified for large solid applications.
  • Avoid operation far right of performance curve to prevent overload.
  • Shaft overhang design requires correct alignment to reduce vibration.
  • For abrasive media, consider hardened material configuration.
  • Proper foundation rigidity improves bearing life.

Compliance & Quality Assurance

  • Hydraulic performance test per ISO 9906
  • Factory pressure casing test
  • Dynamic balance test of impeller
  • Material certification traceability
  • Optional third-party inspection available

Safety Notice

  • Do not operate under dry-running condition
  • Ensure suction line is free from air blockage before startup
  • Disconnect power before maintenance
  • Do not exceed allowable working pressure

OEM & Custom

This pump series supports engineered configuration and duty-based matching. Technical adjustments can be made according to system requirements and installation conditions.

Available options include:

• Motor voltage & frequency
• Seal type (mechanical seal / packing seal)
• Impeller material upgrade
• Anti-corrosion coating

Configuration is determined based on duty point and project specifications.

FAQs

Q1: What is the maximum allowable solid size?
A: Depends on model size and impeller clearance; typically up to 60–80% of discharge diameter.

Q2: Can the pump operate under VFD control?
A: Yes, provided minimum flow and motor cooling requirements are maintained.

Q3: What sealing options are available?
A: Mechanical seal and packing seal are standard configurations.

Q4: What is the allowable working pressure?
A: Maximum working pressure is ≤1.0 MPa.

Q5: Is the pump suitable for fibrous wastewater?
A: Yes, vortex structure minimizes fiber entanglement.

Q6: Can abrasive-resistant materials be selected?
A: Yes, hardened alloys or wear-resistant materials can be configured.

Q7: Does the pump require priming?
A: Yes, standard configuration requires flooded suction or priming before startup.