WFB Series Sealless Self-Controlled Self-Priming Pump
Sealless self-priming pump with centrifugal dynamic sealing for zero-leakage operation in chemical, pharmaceutical and metallurgical applications. Self-controlled priming without external devices, high reliability with 10x service life compared to conventional seals.
Key Specifications
| Flow Rate | 5.6-1600 m3/h |
| Head | 10-125 m |
| Speed | 2960 / 1480 r/min |
Product Overview
The WFB Series Sealless Self-Controlled Self-Priming Pump is a sealless self-priming centrifugal pump designed for chemical, pharmaceutical, metallurgical and industrial water transfer applications. The sealless design eliminates the traditional mechanical seal, providing a zero-leakage solution for handling clean water and non-aggressive liquids. The self-controlled self-priming system enables the pump to evacuate air from the suction line and establish flow without external priming devices or manual intervention.
This pump is widely used in industrial process water transfer, chemical plant operations and applications where zero leakage is a critical requirement. Depending on regional terminology, it may also be referred to as a Sealless Self-Priming Pump, WFB Self-Controlled Pump, Sealless Self-Controlled Self-Priming Pump or WFBSealless Self-Priming Pump.
Key Features
- Sealless design with series multi-face centrifugal dynamic sealing eliminates leakage without traditional mechanical seals
- Self-controlled self-priming system evacuates air automatically without external priming devices
- Zero leakage enhances operational safety and environmental cleanliness
- High reliability with extended service life reaching 10 times that of conventional seal products
- Minimal contact friction in the sealing assembly reduces wear and maintenance requirements
- Suitable for chemical, pharmaceutical, metallurgical and industrial water transfer applications
Applications
- Chemical plant process water and non-aggressive liquid transfer
- Pharmaceutical industry clean water and process fluid transfer
- Metallurgical industry cooling water circulation
- Industrial water supply and circulation systems
- Power plant cooling water and process water transfer
- Environmental water treatment plant process circulation
Customer Benefits
Zero-Leakage Sealless Design
The series multi-face centrifugal dynamic sealing device eliminates the need for traditional packing seals or mechanical seals, structurally preventing medium leakage caused by seal wear and enhancing operational safety and environmental cleanliness.
10x Service Life
With minimal contact friction during operation, the sealing assembly experiences negligible wear, achieving a service life up to 10 times that of conventional seal products, significantly reducing replacement costs and maintenance downtime.
Automatic Self-Priming
The self-controlled self-priming system evacuates air from the suction line automatically, enabling installation above the liquid source without the need for external priming equipment, foot valves or manual priming procedures.
Low Maintenance Requirements
The sealless design and minimal-wear sealing assembly eliminate the need for regular seal replacement, reducing maintenance frequency and total cost of ownership over the pump service life.
High Operating Reliability
The rational structural design and robust construction ensure dependable operation under demanding industrial operating conditions, reducing unplanned downtime and maintenance costs.
Wide Operating Range
With flow rates from 5.6 to 1600 m3/h and heads from 10 to 125 m, the WFB Series covers a broad spectrum of industrial water transfer and process circulation requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Series | WFB Series |
| Pump Type | Sealless self-controlled self-priming pump |
| Flow Rate | 5.6-1600 m3/h |
| Head | 10-125 m |
| Rotational Speed | 2960 / 1480 r/min |
| Outlet Diameter | DN50-DN400 |
| Suction Lift | 4-6 m |
| Maximum Ambient Temperature | 40 degrees C |
| Maximum Medium Temperature | 50 degrees C |
Selected model data shown. Contact us for full parameters and model selection.
Selection Guidance
To select the appropriate WFB Series sealless self-priming pump, please provide the following information:
- Required flow rate (m3/h)
- Required head (m)
- Liquid type and temperature (maximum 50 degrees C)
- Required suction lift (m)
- Available voltage and frequency
- Installation space constraints
- Operating conditions and duty cycle
Final model selection should be confirmed according to the actual duty point, liquid properties and project conditions.
Installation and Maintenance
Installation Guidance
The pump should be installed above the liquid level with adequate clearance for inspection and maintenance. The suction piping must be airtight and properly connected to prevent air leaks that would impair self-priming performance. The discharge piping must be properly supported to prevent load transfer to the pump flanges.
Pre-Start Inspection
Before starting the pump, confirm the following:
- Pump is securely mounted and level
- Suction piping connections are airtight and leak-free
- Discharge piping connections are complete and leak-free
- Motor wiring is correct and terminals are secure
- Pump casing contains the required priming liquid volume
- Rotational direction matches the arrow indicated on the pump casing
- All fasteners are properly tightened
Routine Maintenance
Regular inspection should include:
- Monitoring motor bearing temperature and vibration levels
- Verifying that the pump maintains the required flow and head during test runs
- Inspecting suction piping for air leaks
- Inspecting all pipeline connections for signs of wear or leakage
- Checking the sealing assembly for abnormal wear or temperature rise
Available Configurations
- Flow rates from 5.6 to 1600 m3/h
- Heads from 10 to 125 m
- Rotational speeds: 2960 / 1480 r/min
- Outlet diameters from DN50 to DN400
- Suction lift: 4-6 m
- Maximum medium temperature: 50 degrees C
FAQs
What is a WFB Series sealless self-priming pump?
It is a sealless self-priming centrifugal pump with a series multi-face centrifugal dynamic sealing device, providing zero-leakage operation for clean water and non-aggressive liquid transfer in chemical, pharmaceutical and industrial applications.
What is the flow range of the WFB Series?
The WFB Series offers flow rates from 5.6 to 1600 m3/h, suitable for small to large industrial water transfer applications.
What is the head range?
Available heads range from 10 to 125 m.
What liquids can this pump handle?
It is suitable for clean water and non-aggressive liquids without solid particles or fibres, with medium temperatures up to 50 degrees C.
Why use a sealless design?
The sealless design eliminates the need for traditional packing seals or mechanical seals, structurally preventing medium leakage caused by seal wear and enhancing operational safety and environmental cleanliness.
Where can the WFB Series be used?
It is widely used in chemical plant operations, pharmaceutical industry clean water transfer, metallurgical cooling water circulation, industrial water supply, power plant cooling water and environmental water treatment applications.
Contact Chaodun
For product selection, technical data, performance information or project quotations, please contact Shanghai Chaodun Machinery Manufacturing Group Co., Ltd.
Website: https://cd-pump.cc
Email: [email protected]
WhatsApp: +44 751 8050 473