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 pompe auto-amorçantes 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.

Plage de débit :

2.5~100m³/h

Gamme de têtes :

15~50m

Puissance :

1.5~30Kw

Température :

-20-150℃

Matériau :

Fluoroplastics / FEP / PFA/PTFE

Introduction

La série FZB Pompe centrifuge auto-amorçante 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 Pompe auto-amorçante 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.

Pompe auto-amorçante en fluoroplastique pour le transfert de produits chimiques corrosifs
Self-Priming Centrifugal Pump (1)

TousCorps de pompe revêtu d'acier :

Recuit à haute température pour éviter les fissures ; offre une résistance supérieure à la pression et ne se déforme pas ; garantie de 10 ans.

Roue :

Résistant à des températures allant jusqu'à 150°C ; sûr et fiable ; doté de canaux d'écoulement lisses pour une faible résistance et un rendement élevé ; résistant à la corrosion et à l'usure ; résistant à la déformation.

Roulements :

  • Roulements importés pour un fonctionnement souple et sans frottement : fabriqués à partir de la technologie européenne ; pièces d'origine ; conçus pour un fonctionnement à long terme.
  • Haute vitesse : Roulements de haute précision avec une forte résistance à l'usure et des vitesses de rotation élevées
  • Faible bruit : La graisse haut de gamme utilisée à l'intérieur des roulements réduit efficacement le bruit.
  • Haute résistance à l'usure : Le traitement thermique en bain de sel, avancé au niveau international, améliore la microstructure de l'acier pour une meilleure résistance à l'usure.
  • Longue durée de vie : Utilise l'acier à roulement CGR15 de haute qualité, offrant une durée de vie plus longue que les roulements standard.

Garniture mécanique :

Conception modifiée du joint pour une plus grande fiabilité ; la conception de la rainure en V avec une excellente élasticité assure une performance plus stable.

Avis : 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), notre ingénierie garantit un environnement de manipulation des fluides plus sûr, plus stable et sans fuite pour vos fluides les plus agressifs.

Courriel : jade@changyupump.com

Téléphone : +86- +86-13651913727

Specifications: Self-Priming Centrifugal Pump

Type de paramètreSpécification / Gamme
Diamètre d'entrée/sortie25mm - 100mm
Débit (Q)2,5 ³/ h - 100 ³/ h
Tête (H)15m - 50m
Hauteur d'auto-amorçage4m - 5m (jusqu'à 7m avec clapet de pied)
Température de fonctionnementDe -20°C à 150°C
Matériaux de la doublureFluoroplastics / FEP / PFA/PTFE
Matériau de l'enveloppeAcier moulé / HT200 revêtu de plastique fluoré
Pression du système≤1,6 MPa
Contenu solide< 5% (particules non cristallines)
Normes de conceptionGB/T5662, ISO2858, EN733, DIN24255

Model Nomenclature:

The model designation for the Pompe Changyu 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: Type de pompe – 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.

Le choix de la bonne configuration est essentiel pour un transfert efficace de produits chimiques corrosifs. Pompe Changyu offre des consultations techniques professionnelles pour vous aider à sélectionner la pompe auto-amorçante idéale de la série FZB en fonction de vos exigences spécifiques en matière de débit, de hauteur de charge et de milieu. Que vous ayez besoin de moteurs antidéflagrants ou d'enveloppes chauffantes spécialisées, notre équipe d'ingénieurs est prête à vous fournir une solution personnalisée pour le traitement des fluides.

Contactez-nous dès aujourd'hui pour une sélection précise du modèle et un devis professionnel.

Courriel : jade@changyupump.com

Téléphone : +86- +86-13651913727

ModèleDébit (m³/h)Tête (m)Puissance du moteur (KW)Vitesse (r/min)Auto-amorçage Hauteur (m)Temps d'auto-amorçage (s)Efficacité (%)NPSHr(m)EntréeSortie
25FZB-20LP1.5-616-192.229000.718010-2532525
40FZB-20P5-1217-2232900118035-4634050
40FZB-30L5-1228-3242900315034-483.54050
50FZB-20P8-1517-2232900118035-4235050
50FZB-30L8-1528-3242900315024-303.55050
50FZB-45L8-1543-477.52900315024-353.55040
50FZB-70L8-1568-72152900315020-2645032
65FZB-30L15-3527-327.52900320037-4246550
65FZB-45L15-3538-47112900318030-4446540
65FZB-70L15-3565-72222900318030-4246540
80FZB-30L35-6028-351129003.518051-634.58065
80FZB-45L35-6042-471529003.520045-534.58065
80FZB-70L35-6065-723029003.525043-5058050
100FZB-30L65-11028-3218.529003.520056-80610080
100FZB-45L65-11040-46302900425048-55610080

Working Principle of the Changyu Pump FZB Series

Le Pompe Changyu 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

  • Charge initiale : 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

Pourquoi le choisir ?

Advantages of the Self-Priming Centrifugal Pump

Pompe centrifuge auto-amorçante
Pompe centrifuge auto-amorçante

Applications: Self-Priming Centrifugal Pump

La série FZB de Changyu Pump est une gamme de pompes centrifuges auto-amorçantes résistantes à la corrosion qui utilisent une technologie de revêtement entièrement en plastique fluoré (comme le PTFE et le FEP) et sont spécifiquement conçues pour le transfert de fluides hautement corrosifs, volatils ou de haute pureté.

Usines de traitement chimique

Industrie chimique

Transport d'acides (acide sulfurique, acide chlorhydrique), de solutions alcalines et de solvants organiques

Placage électrolytique

Électrodéposition/traitement de surface

Circulation et filtration des solutions de galvanoplastie et de placage chimique

Protection de l'environnement et traitement des eaux usées

Protection de l'environnement

Traitement des eaux usées contenant des composants corrosifs et dosage chimique

Transformation des aliments

Produits pharmaceutiques/alimentaires

Transport de solvants de haute pureté (modèles certifiés de qualité alimentaire requis)

Changyu Pump Industry: Self-Priming Centrifugal Pump Factory in China

Changyu Pump Industry has over 20 years of experience manufacturing and supplying high-quality Pompes auto-amorçantes, 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. Contactez nous today for a customized quote or technical consultation! 

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FAQ

A : A self-priming pump is a type of pump designed to automatically remove air from its casing and create a vacuum, allowing it to start pumping liquid without needing to be manually filled with fluid first. This makes it ideal for applications where the pump may need to handle air or restart after losing prime.

A3 : A self-priming pump typically doesn’t need to be manually primed before each use. However, it usually requires an initial priming—filling the pump casing with liquid—before the first operation. After this, the pump can automatically re-prime itself if it loses prime during operation.

A5 : The choice depends on the application:

Self-Priming Pump: Better for above-ground installations where the pump may need to handle air and maintain prime. It’s suitable for situations where the pump can’t be submerged.

Submersible Pump: Better for pumping water from below ground or fully submerged situations, like in wells or sumps. It’s quiet and efficient in submerged applications.

Each is best suited for different situations.

A2 : The main disadvantages of self-priming pumps include:

  • Lower Efficiency: They can be less efficient compared to standard pumps due to the additional mechanisms required for self-priming.
  • Longer Priming Time: The process of self-priming can take longer, especially if the pump has to remove significant amounts of air.
  • Limited Suction Height: They typically have a lower maximum suction lift compared to other types of pumps.
  • More Maintenance: The added complexity of self-priming mechanisms may require more maintenance and increase the risk of mechanical issues.

These factors should be considered when choosing a pump for specific applications.

A4 : The choice between a centrifugal and self-priming pump depends on the application:

  • Pompe centrifuge : Better for applications with continuous flow and low-viscosity liquids where priming is not a concern. It is generally more efficient and has fewer moving parts.
  • Self-Priming Pump: Ideal for situations where the pump may need to handle air or where maintaining prime is a challenge, such as in applications with varying fluid levels.

Each has its advantages, so the best choice depends on your specific needs.

A : Oui. Pompe Changyu La série FZB est équipée d'un revêtement F46 (FEP) ou PFA de 2 à 3 mm d'épaisseur moulé dans un corps métallique. Cette construction est conçue pour le transfert de produits chimiques corrosifs, ce qui la rend résistante à presque toutes les concentrations d'acides forts, d'alcalis et d'oxydants puissants, surpassant souvent les pompes coûteuses en titane ou en alliage.

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