FZB Series Fluoroplastic Self-Priming Centrifugal Pump
Changyu Pump’s FZB series of Fluoroplastic Self-Priming Centrifugal Pumps are manufactured in accordance with ISO international standards using advanced sintered compression lining technology. All flow-through components in this series of self-priming pumps are lined with FEP (F46) and PFA, and are paired with 99.9% high-purity ceramic bellows mechanical seals. This design completely resolves the industry-wide challenges of leakage and wear associated with the transfer of chemical media, enabling long-term, stable operation even in extremely harsh acidic and alkaline environments.
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Flow Range : |
2.5~100m³/h |
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Head Range: |
15~50m |
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Power : |
1.5~30Kw |
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Temperature : |
-20-150℃ |
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Material : |
Fluoroplastics / FEP / PFA/PTFE |
Introduction
The FZB Series Self-Priming Centrifugal Pump features a metal casing lined with plastic, with all flow-passing components manufactured from fluoroplastic alloys. The pump cover, impeller, and other components are made from metal inserts encased in fluoroplastic and formed through integral sintering and pressing. The shaft seal employs an advanced external bellows mechanical seal. The stationary ring is made of 99.9% alumina ceramic (with a graphite sleeve and silicon carbide), while the rotating ring uses PTFE-filled material, providing excellent corrosion and wear resistance. Both the inlet and outlet of the self-priming pump are reinforced with cast steel bodies to enhance the pump’s pressure resistance.
The FZB Self-Priming Pump has an extremely wide range of applications, including biopharmaceuticals, petrochemicals, mining and metallurgy, textile printing and dyeing, power generation, food processing, papermaking, electroplating, wastewater treatment, flue gas treatment, new energy, and new materials industries. Examples include: pumping corrosive liquids from underground tanks to designated locations; pumping acids and alkalis from tanks with bottom discharge ports to designated locations; transferring acids and alkalis from drums to large storage tanks; and unloading various types of corrosive tank trucks.
Let’s take a look at its components and performance specifications below.
FZB Series Self-Priming Centrifugal Pump
The Changyu Pump FZB Series Self-Priming Centrifugal Pump employs an advanced “steel-lined-fluoroplastic” composite process. Through precision sintering and molding technology, it integrates the mechanical strength of metal with the corrosion resistance of fluoroplastic, enabling safe, stable pumping of corrosive fluids.
To provide you with a clear understanding of its internal materials and technology, the exploded view below details the core components, from the high-precision impeller to the advanced sealing system. Each component is manufactured in strict accordance with international standards, working together to ensure leak-free, long-lasting, and stable operation even in the most extreme acidic and alkaline environments.
AllSteel-Lined Pump Housing:
High-temperature annealed to prevent cracking; offers superior pressure resistance and no deformation; comes with a 10-year warranty.
Impeller:
Temperature-resistant up to 150°C; safe and reliable; features smooth flow channels for low resistance and high efficiency; corrosion- and wear-resistant; resistant to deformation.
Bearings:
- Imported bearings for smooth, friction-free operation: manufactured using European technology; genuine original parts; designed for long-term operation.
- High Speed: High-precision bearings with strong wear resistance and high rotational speeds
- Low Noise: High-end grease used inside the bearings effectively reduces noise
- High Wear Resistance: Internationally advanced salt bath heat treatment enhances the steel’s microstructure for increased wear resistance
- Long Service Life: Uses high-standard CGR15 bearing steel, offering a longer service life than standard bearings
Mechanical Seal:
Modified seal design for greater reliability; V-groove design with excellent elasticity ensures more stable performance
Notice: Trust our industrial-grade FZB Series Self-Priming Centrifugal Pump to minimize operational downtime and lower your total cost of ownership in highly corrosive chemical applications. By utilizing a horizontal self-priming structure that allows for automatic suction up to 5 meters after the initial filling and advanced fluoroplastic linings (FEP/PFA), our engineering ensures a safer, more stable, and leak-free fluid handling environment for your most aggressive media.
Email: jade@changyupump.com
Phone: +86-13651913727
Specifications: Self-Priming Centrifugal Pump
| Parameter Type | Specification / Range |
| Inlet/Outlet Diameter | 25mm – 100mm |
| Flow Rate (Q) | 2.5 ³/ h – 100 ³/ h |
| Head (H) | 15m – 50m |
| Self-Priming Height | 4m – 5m (Up to 7m with foot valve) |
| Operating Temperature | -20°C to 150°C |
| Lining Materials | Fluoroplastics / FEP / PFA/PTFE |
| Casing Material | Cast Steel / HT200 Lined with Fluoroplastic |
| System Pressure | ≤1.6 MPa |
| Solid Content | < 5% (Non-crystalline particles) |
| Design Standards | GB/T5662, ISO2858, EN733, DIN24255 |
Model Nomenclature:
The model designation for the Changyu Pump FZB Series provides essential technical data at a glance. Each segment of the code represents a specific design feature or performance metric, as illustrated by the example 65 F – Z – B – 32:
- 65: Inlet Diameter – Indicates the pump’s suction inlet diameter is 65mm.
- F: Lining Material – Signifies that all wetted (flow-passing) components are manufactured with Fluoroplastic lining (such as FEP, PTFE, or PFA) for superior chemical resistance.
- Z: Self-Priming Capability – Denotes that the pump is equipped with an integrated Self-priming function, ideal for suction lift applications.
- B: Pump Type – Identifies the unit as a Single-stage, single-suction centrifugal pump, a standard for high-efficiency fluid transfer.
- 32: Rated Head – Specifies the pump’s rated discharge head is 32 meters.
Choosing the right configuration is critical for efficient corrosive chemical transfer. Changyu Pump provides professional technical consultations to help you select the ideal FZB Series self priming pump based on your specific flow, head, and medium requirements. Whether you need explosion-proof motors or specialized heating jackets, our engineering team is ready to provide a customized fluid handling solution.
Contact us today for a precise model selection and professional quotation.
Email: jade@changyupump.com
Phone: +86-13651913727
| Model | Flow (m³/h) | Head (m) | Motor Power (KW) | Speed (r/min) | Self-priming Height(m) | Self-priming Time (s) | Efficiency (%) | NPSHr(m) | Inlet | Outlet |
|---|---|---|---|---|---|---|---|---|---|---|
| 25FZB-20LP | 1.5-6 | 16-19 | 2.2 | 2900 | 0.7 | 180 | 10-25 | 3 | 25 | 25 |
| 40FZB-20P | 5-12 | 17-22 | 3 | 2900 | 1 | 180 | 35-46 | 3 | 40 | 50 |
| 40FZB-30L | 5-12 | 28-32 | 4 | 2900 | 3 | 150 | 34-48 | 3.5 | 40 | 50 |
| 50FZB-20P | 8-15 | 17-22 | 3 | 2900 | 1 | 180 | 35-42 | 3 | 50 | 50 |
| 50FZB-30L | 8-15 | 28-32 | 4 | 2900 | 3 | 150 | 24-30 | 3.5 | 50 | 50 |
| 50FZB-45L | 8-15 | 43-47 | 7.5 | 2900 | 3 | 150 | 24-35 | 3.5 | 50 | 40 |
| 50FZB-70L | 8-15 | 68-72 | 15 | 2900 | 3 | 150 | 20-26 | 4 | 50 | 32 |
| 65FZB-30L | 15-35 | 27-32 | 7.5 | 2900 | 3 | 200 | 37-42 | 4 | 65 | 50 |
| 65FZB-45L | 15-35 | 38-47 | 11 | 2900 | 3 | 180 | 30-44 | 4 | 65 | 40 |
| 65FZB-70L | 15-35 | 65-72 | 22 | 2900 | 3 | 180 | 30-42 | 4 | 65 | 40 |
| 80FZB-30L | 35-60 | 28-35 | 11 | 2900 | 3.5 | 180 | 51-63 | 4.5 | 80 | 65 |
| 80FZB-45L | 35-60 | 42-47 | 15 | 2900 | 3.5 | 200 | 45-53 | 4.5 | 80 | 65 |
| 80FZB-70L | 35-60 | 65-72 | 30 | 2900 | 3.5 | 250 | 43-50 | 5 | 80 | 50 |
| 100FZB-30L | 65-110 | 28-32 | 18.5 | 2900 | 3.5 | 200 | 56-80 | 6 | 100 | 80 |
| 100FZB-45L | 65-110 | 40-46 | 30 | 2900 | 4 | 250 | 48-55 | 6 | 100 | 80 |
Working Principle of the Changyu Pump FZB Series
The Changyu Pump FZB Series utilizes an external-mix gas-liquid separation structure. Its operation is defined by a continuous “mixing, separation, and recirculation” cycle, enabling the pump to evacuate air from the suction line and achieve self-priming without a foot valve.
Phase 1: The Priming & Vacuum Generation
- Initial Charge: Before the first startup, the pump casing must be filled with a priming liquid. The FZB design ensures this liquid is retained within the chamber for all subsequent operations.
- Centrifugal Agitation: Upon activation, the high-speed rotation of the impeller flings the priming liquid toward the outer volute, creating a significant low-pressure vacuum zone at the impeller eye.
- Induction of Air: Due to the pressure differential, air from the suction pipe is drawn into the pump body, where the impeller violently mixes it with the priming liquid to form a highly aerated gas-liquid emulsion.
Phase 2: Gas-Liquid Separation & Recirculation
- Deceleration & Exhaust: The aerated mixture is forced into the oversized separation chamber. Here, the flow velocity drops abruptly, allowing air bubbles to break free from the liquid and escape through the discharge outlet.
- Internal Recirculation: The denser, degassed liquid sinks to the bottom of the chamber and returns to the impeller via a recirculation port. This “heavier” liquid then picks up more air, continuing the evacuation process.
Phase 3: Transition to Normal Centrifugal Flow
- Steady-State Operation: This cycle repeats until the suction line is entirely evacuated of air (reaching a self-priming height of up to 5 meters).
- Automatic Transition: Once the vacuum is fully established and the liquid column reaches the impeller, the pump automatically transitions into standard centrifugal mode, delivering a steady, high-pressure flow of corrosive media.
Video
Let’s take a look at this product in more detail through the video below
Advantages of the Self-Priming Centrifugal Pump
Superior Corrosion Resistance
Wetted parts are molded with PTFE/FEP (F46) linings, providing reliable resistance against any concentration of strong acids, alkalis, and organic solvents.
Leak-Free Precision Sealing
Equipped with external bellows mechanical seals and silicon carbide bushings, ensuring a zero-leakage environment and low-vibration operation under heavy loads.
Advanced 5m Suction Lift
The horizontal self-priming chamber enables an automatic suction lift of up to 5 meters. After the initial filling, it starts immediately without further priming.
Durable & Easy Maintenance
Metal-cased 2-3mm fluoroplastic lining with a back-pullout design for quick maintenance without disconnecting pipes.
Applications: Self-Priming Centrifugal Pump
The Changyu Pump FZB Series is a line of corrosion-resistant self-priming centrifugal pumps that utilize fully fluoroplastic (such as PTFE and FEP) lining technology and are specifically designed for the transfer of highly corrosive, volatile, or high-purity media.
Chemical Industry
Transport of acids (sulfuric acid, hydrochloric acid), alkaline solutions, and organic solvents
Electroplating/Surface Treatment
Circulation and filtration of electroplating solutions and chemical plating solutions
Environmental Protection
Treatment of wastewater containing corrosive components and chemical dosing
Pharmaceuticals/Food
Transport of high-purity solvents (food-grade certified models required)
Changyu Pump Industry: Self-Priming Centrifugal Pump Factory in China
Changyu Pump Industry has over 20 years of experience manufacturing and supplying high-quality Self-Priming Pumps, specializing in fluid handling for the chemical industry. As a professional Self-Priming Centrifugal Pump manufacturer and supplier, we utilize advanced production equipment, a dedicated technical team, and rigorous quality control procedures to provide customers with reliable solutions.
Our Centrifugal Self-Priming Pumps are suitable for handling a wide range of media, including corrosive, toxic, volatile, and high-purity materials, making them ideal for industries such as chemical, pharmaceutical, electroplating, and environmental protection. We also offer custom designs to meet specific operational requirements. Contact us today for a customized quote or technical consultation!
FAQs
Project Showcases
Changyu Pump has successfully deployed the Fluoroplastic Self Priming Pump in over 500+ industrial projects worldwide, ensuring safe fluid handling in extreme environments.
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