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QBK5 Sanitary Diaphragm Pump

    QBK5 Sanitary Diaphragm Pump

    The QBK5 Sanitary Diaphragm Pump is a high-quality, hygienic pump designed for the safe and efficient transfer of liquids in food, beverage, pharmaceutical, and chemical industries. Featuring a sanitary design, corrosion-resistant materials, and leak-free operation, this pump ensures contamination-free fluid handling and reliable performance. Ideal for applications requiring gentle pumping of sensitive fluids, the QBK5 Sanitary Diaphragm Pump delivers precise flow control, easy maintenance, and long-lasting durability for demanding sanitary environments.
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1. Product introduction

The sanitary stainless steel pneumatic diaphragm pump produced by our company is the core product of cooperation technology with foreign enterprises, and is made in China with foreign technologies. The product design is reasonable, with the advantages of no sealing, explosion-proof, low shear, easy maintenance, idling allowed, portable, self priming, multi material selection, etc.

2. Product pictures

QBK5 Sanitary Diaphragm Pump

3. Scope of application

1. Beverage industry: fermented concentrate, dregs, hot fruit juice, syrup, gas-liquid mixture, corn syrup, wine, fruit juice, jam

2. Pharmaceutical industry: tablets, ointment, alcohol, filtering aids, plant extracts

3. Food industry: honey, essence, spices, chocolate, vinegar, syrup, vegetable oil, animal blood

4. Daily chemical industry: detergent, cream, hand sanitizer, surfactant, shampoo, latex, hair gel, soap

5. Paper industry: lotion, adhesive, pigment, resin, dispersant, printing ink, kaolin, hydrogen peroxide

6. Oil tank car industry: tank car cleaning equipment, tank loading and discharge of vehicle oil tank

7. Automobile manufacturing: emulsion oil, grinding lotion, oil, coolant, hydraulic oil, paint preparation, paint additives, decontamination tank, cutting oil, water and glycol mixing, painting

4. Product Features

1. No irrigation is required. Super high suction. Suction lift up to 7m

2. Good trafficability. Particles and mud with a diameter of less than 10mm can pass through easily.

3. As the diaphragm will be separated from the transmission medium and the transmission mechanical parts, the medium will never leak out; And the pump itself has no shaft seal, which greatly extends the service life; According to different media, the diaphragm can be divided into neoprene, fluororubber, nitrile rubber, polytetrafluorohexene, Teflon (F46), etc.

4. The medium overflow part of the pump body can be divided into cast iron, stainless steel, fluorine lining and aluminum alloy according to different user requirements.

5. Model Meaning

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6. Specifications

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Note: 1. The materials of overcurrent components include 304 stainless steel and 316 stainless steel

2. Diaphragm materials include neoprene, fluororubber, NBR, PTFE, and Teflon (F46)

7. Installation method

(1) The pump shall be installed and fixed on a stable foundation. It is better to lay a cushion between the base and the foundation. Ensure that the pump will not affect the vibration of the pipeline when it is started. The pump is not affected by other mechanical vibration.

(2) When installing the pipeline, it shall be noted that the inlet and outlet pipelines of the pump shall not exert force on the pump and shall be equipped with corresponding supports.

(3) The equipment must be grounded during installation.

8. Precautions

(1) Before using the pump, each fastener of the pump should be checked.

(2) Before operating the equipment, you must read all instructions and understand the contents of various signs and labels.

(3) The conveyed medium and its temperature shall be within the allowable range of pump flow passage parts.

(4) When the conveying liquid is a medium that is easy to precipitate and crystallize, clean and discharge the deposits in the electric diaphragm pump in time after use to avoid damage when it is opened again.

(5) Do not exceed the maximum working pressure of the lowest rated component of the system being used.

9. Frequently Asked Questions

(1) If there are bubbles in the fluid, it may be that the suction pipe is loose and the diaphragm is broken.

(2) Fluid in exhaust gas may be caused by severe wear of vulnerable parts.

(3) Air leakage from the pump may be caused by wear of the central shaft seal.

10. Use needs

1. During the operation of the pump body, the maximum particle diameter contained in the internal medium shall not exceed the maximum safe passing particle diameter standard of the pump, otherwise it will cause blockage in the pump body.

2. During the operation of the pump, the air inlet pressure shall not exceed the maximum allowable working pressure of the pump, otherwise, excessive pressure will cause extreme compression of air. Once a failure occurs, it may affect the operation of the pump, and even cause dangerous situations, such as personal injury or property loss.

3. Clean the pipes inside the pump to ensure that the inside is clean and tidy, so that the pump can operate stably and normally.

4. The grounding inside the pump shall be carefully and carefully installed. Some wires with large cross section can be used for screw fixation and reliable grounding, so that the pump will not generate electrostatic sparks during operation and avoid some dangerous situations. Of course, the grounding should also be based on the actual situation, and there are also some special provisions in some special places. After the grounding installation is completed and the pump is used, it is also necessary to regularly check whether the grounding status is stable and reliable as it was at the beginning.

5. In addition, electrostatic sparks may also be generated if the connecting pipe head is loose and hit by transportation, so the diaphragm pump and all connecting pipe joints shall be fastened when the pump is installed. If conditions permit, anti-static hoses can be used.

6. It is better to install the pump in a well ventilated environment. Another point is to keep the pump away from some products that are too hot or flammable and explosive.

7. If the diaphragm pump is in the process of exhaust, be sure not to point the exhaust port at people, or impurities inside may cause harm to human body. In addition, if the pump conveys some flammable or toxic media, the pump should be transferred to some safe areas for medium discharge.

8. The high pressure of the fluid may cause serious casualties and property losses. Please do not carry out any maintenance work on the pump and material pipe system when the pump is pressurized. If maintenance is required, first cut off the air inlet of the pump, open the bypass pressure relief mechanism to depressurize the pipeline system, and slowly loosen the connected pipe joints.

9. Please do not send the pump directly to the manufacturer for repair if transporting harmful and toxic fluid. Properly handle according to local laws and regulations, and use permanent ball fittings to ensure service life.

10. Pump made of aluminum alloy is used for liquid delivery. Please do not use it to deliver liquid containing Fe3+, halogenated hydrocarbon and other substitute hydrocarbon solvents, which will cause corrosion and crack of pump body.

11. Ensure that all parts in contact with the conveying body will not be damaged by the conveyed fluid.

12. Ensure that all operators are familiar with the operation and use and master the precautions for safe use of the pump. If necessary, provide necessary protective equipment.

13. In places where the work is bad, such as construction sites, industrial and mining wastewater discharge, due to the impurities and complex composition in the sewage, the pipeline is easy to be blocked, so the electric pump will be overloaded, the motor will be vulnerable to heat, and the main shaft is easy to break.


QBK5 sanitary diaphragm pump: Complete Guide for Industrial and Hygienic Applications

Introduction

The QBK5 Sanitary Diaphragm Pump is engineered to deliver high-performance, hygienic fluid transfer for food, beverage, pharmaceutical, and chemical industries. Its sanitary design, corrosion-resistant materials, and leak-free operation ensure contamination-free handling of sensitive fluids. This comprehensive guide covers technical parameters, upgrade options, real-world applications, and storage requirements to maximize the performance and lifespan of the QBK5 pump.


H2: Technical Parameters

H3: Key Specifications

The QBK5 pump is designed for precise, safe, and efficient fluid transfer in demanding sanitary environments. The technical specifications include:

ParameterSpecificationNotes
Flow Rate0.5 – 5 m³/hAdjustable based on pump speed and diaphragm type
Maximum Pressure6 barSuitable for medium-pressure sanitary applications
Temperature Range0°C – 90°CCompatible with most food and beverage fluids
MaterialStainless Steel 316LCorrosion-resistant, sanitary-grade
Connection TypeTri-Clamp / ISO 2852Easy assembly and disassembly for cleaning
Diaphragm MaterialPTFE / EPDMChemical and wear-resistant
Motor Power0.5 – 2.2 kWDepends on flow requirements

H3: Performance Features

  • Leak-Free Operation: Sanitary diaphragms prevent contamination.

  • Gentle Pumping: Minimizes shear stress on sensitive fluids.

  • Versatile Compatibility: Suitable for dairy, juice, pharmaceutical solutions, and chemical liquids.

  • Low Maintenance: Modular design allows for quick diaphragm replacement.


QBK5 Sanitary Diaphragm Pump

H2: Upgrade Solutions

H3: Efficiency Enhancements

  • Variable Speed Drives (VSD): Allows precise flow adjustment, reducing energy consumption.

  • Advanced Diaphragm Materials: Upgraded PTFE diaphragms improve chemical resistance and extend service life.

  • Enhanced Seals: High-performance O-rings reduce leakage risk in demanding environments.

H3: Automation Options

  • Integration with PLC systems for real-time monitoring.

  • Remote flow control for improved process automation.

  • Optional sensor-based feedback for pressure and flow monitoring.

H3: Upgrade Benefits

  • Reduced operational downtime.

  • Increased energy efficiency.

  • Extended pump service life.

  • Improved sanitary compliance for critical processes.


H2: Real-World Applications

H3: Food and Beverage Industry

  • Dairy Products: Transfer of milk, cream, and yogurt while maintaining hygiene.

  • Juices and Beverages: Pumping sensitive fluids without foaming or contamination.

H3: Pharmaceutical Industry

  • Sterile Solutions: Safe handling of injectable and oral liquids.

  • Chemical Precursors: Accurate dosing of viscous or corrosive solutions.

H3: Chemical Industry

  • Viscous Liquids: Pumps chemicals like glycerin, syrups, and low-corrosive acids.

  • Precision Transfer: Ensures accurate volumes for processing lines.

ApplicationPump AdvantageOutcome
Dairy ProcessingGentle flow, sanitary diaphragmMaintains product integrity
Pharmaceutical ProductionLeak-free, corrosion-resistantCompliance with FDA / GMP standards
Chemical TransferPrecise dosing, corrosion-resistantReduced waste and safety risk

H2: Storage and Handling Requirements

H3: Short-Term Storage

  • Store the pump in a clean, dry, and temperature-controlled environment.

  • Cover all open ports to prevent dust or debris ingress.

  • Avoid direct sunlight exposure to protect diaphragms and seals.

H3: Long-Term Storage

  • Disassemble and clean diaphragms, O-rings, and seals before prolonged storage.

  • Apply food-grade lubricant to moving parts to prevent corrosion.

  • Store in original packaging or protective crates for overseas shipments.

H3: Transportation Guidelines

  • Secure the pump during transport to avoid shocks and vibration.

  • Use reinforced crates or cartons with padding for sensitive components.

  • Include instruction manuals and inspection certificates with the shipment.


H2: Maintenance Recommendations

H3: Routine Inspection

  • Check diaphragms and O-rings for wear or deformation.

  • Inspect housing and connections for corrosion or leaks.

  • Verify proper operation of flow control and motor performance.

H3: Cleaning Procedures

  • Sanitize the pump using approved cleaning agents compatible with PTFE or EPDM materials.

  • Flush with clean water after each batch to prevent cross-contamination.

  • Perform CIP (Clean-in-Place) or SIP (Sterilization-in-Place) if integrated in production lines.

H3: Component Replacement

  • Diaphragms: Replace every 6–12 months depending on usage.

  • O-rings and seals: Inspect quarterly; replace as needed.

  • Fasteners: Tighten periodically to maintain sanitary integrity.

Maintenance TaskFrequencyNotes
Visual InspectionWeeklyCheck for leaks and wear
Diaphragm CheckMonthlyReplace if signs of wear
O-ring ReplacementQuarterlyPrevent leakage
Cleaning & SanitizationAfter each batchEnsure sanitary compliance

H2: Advantages of QBK5 Sanitary Diaphragm Pump

FeatureBenefit
Sanitary DesignPrevents contamination and meets industry hygiene standards
Corrosion-Resistant MaterialsSuitable for food, beverage, and chemical applications
Leak-Free OperationEnsures safe handling of liquids
Easy MaintenanceModular parts simplify cleaning and repair
Versatile ApplicationsCompatible with viscous, delicate, and chemical fluids

H2: Conclusion

The QBK5 Sanitary Diaphragm Pump is an ideal solution for industries requiring precise, hygienic, and reliable fluid transfer. Its robust construction, sanitary design, and upgrade options make it suitable for food, beverage, pharmaceutical, and chemical applications. By following proper storage, handling, and maintenance guidelines, users can maximize pump performance, ensure compliance with hygiene standards, and extend operational lifespan. Real-world applications demonstrate its versatility, energy efficiency, and reliability, making it a trusted choice for modern industrial operations.

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Email:haiwan@haiwanpump.cn

Add:Meiao Street, Qiaoxia Town, Yongjia County Wenzhou City, Zhejiang, China


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