CYQ Series sulfuric acid transfer pump
Engineered specifically for the safe and continuous handling of H2SO4, Changyu’s sealless magnetic drive pumps cover the entire concentration spectrum—from highly corrosive dilute sulfuric acid (<70%) to highly oxidizing 98% concentrated acid and oleum. This heavy-duty series operates reliably across temperature ranges from -20°C up to 180°C, preventing the risk of rapid localized corrosion or thermal runaway common in metallic alloys.
By upgrading from mechanical seals to an ASME B73.3 compliant sealless design, these transfer pumps eliminate shaft seal failures—the leading cause of hazardous acid leakage and unscheduled plant downtime. Featuring a robust cast steel casing with premium PFA/FEP fluoroplastic lining and zero-eddy-current PEEK containment shells, the system ensures 100% emission-free performance, fully satisfying global OSHA, EPA, and strict factory EHS compliance protocols.
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نطاق معدل التدفق : |
3 م³/ساعة ~ 800 م³/ساعة |
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نطاق الرأس: |
15 م ~ 125 م |
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قوة المحرك : |
2.2 كيلو وات ~ 110 كيلو وات |
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السرعة: |
2950 دورة/دقيقة |
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نطاق درجة الحرارة المتوسطة: |
-20 درجة مئوية ~ 180 درجة مئوية |
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مواد قابلة للتخصيص: |
الصلب المبطن ب FEP، أو PFA، أو PTFE |
What is a Sulfuric Acid Transfer Pump?
A Sulfuric Acid Transfer Pump is a specialized industrial chemical pump engineered to safely move sulfuric acid (H2SO4) across a wide range of concentrations, temperatures, and hydraulic conditions without leakage or material degradation.
Unlike standard water pumps or general-purpose chemical pumps, a dedicated sulfuric acid transfer pump must account for the unique dual chemical behavior of H2SO4:
- Dilute Sulfuric Acid (<70% concentration): Acts as a severe electrochemical corrosive agent that aggressively attacks standard metals and low-grade stainless steels.
- Concentrated Sulfuric Acid (90%–98% concentration): Acts as a strong oxidizing agent. While it may passivate carbon steel at ambient temperatures, it can still cause rapid erosion-corrosion under high flow velocity or elevated temperatures.
To mitigate these risks, modern industrial designs typically adopt sealless magnetic drive centrifugal technology combined with advanced fluoroplastic linings (FEP/PFA). This ensures the entire wetted path is non-metallic and fully enclosed, providing strong resistance to both corrosive and oxidizing conditions.
Core Engineering Requirements
To be considered a reliable solution for sulfuric acid transfer, the pump must meet the following technical requirements:
- Zero-Leakage Sealless Design: Eliminates dynamic mechanical seals, which are prone to failure due to acid crystallization and wear, replacing them with a fully enclosed static containment system.
- Specific Gravity Adaptation: Sulfuric acid has a high density (98% H2SO4 has a specific gravity of approximately 1.84 kg/L). Pumps must use high-torque magnetic couplings and robust motors to prevent decoupling and overload.
- Thermal Shock & Exothermic Resistance: Sulfuric acid can generate significant heat during dilution or contamination with moisture. Internal components such as PEEK containment shells and SSiC bearings must withstand localized thermal stress without deformation or cracking.
- EHS & Regulatory Compliance: The system must provide reliable containment that meets international environmental, health, and safety standards such as OSHA and EPA, preventing acid mist leakage and protecting personnel and infrastructure.
Working Principle of Sulfuric Acid Transfer Pump
A Sulfuric Acid Transfer Pump operates based on magnetic drive centrifugal technology, designed to eliminate direct mechanical contact between the motor and the pumped fluid, ensuring completely sealed and leak-free operation.
Step 1. Magnetic Drive Transmission
The pump uses a pair of magnetic couplings:
- إن outer magnet is connected to the motor shaft
- إن inner magnet is attached to the impeller shaft inside the pump chamber
When the motor rotates, the outer magnet generates a magnetic field that drives the inner magnet to rotate synchronously. This allows torque to be transmitted without any physical shaft penetration, eliminating the need for mechanical seals.
Step 2. Fully Sealed Pump Chamber
The fluid is completely isolated inside a sealed casing lined with corrosion-resistant materials such as FEP/PFA fluoropolymers. A PEEK containment shell separates the magnetic drive system from the chemical medium, ensuring:
- No direct contact between acid and drive components
- No shaft seal leakage risk
- Full containment of hazardous fluids
Step 3. Centrifugal Flow Generation
Once the impeller rotates, centrifugal force is generated:
- Fluid enters the pump eye (center of impeller)
- It is accelerated outward by rotating blades
- Pressure and velocity increase as fluid exits the volute casing
This enables continuous transfer of sulfuric acid under stable flow and pressure conditions.
Step 4. Safety and Corrosion Protection Mechanism
The design ensures safe operation in aggressive chemical environments by:
- Removing mechanical seals (common failure point in acid service)
- Using non-metallic or lined wetted parts to resist corrosion
- Preventing leakage of toxic or highly corrosive acid vapors
الملخص
The sulfuric acid transfer pump works by combining magnetic coupling drive + centrifugal force + fully sealed corrosion-resistant structure, achieving completely leak-free, high-reliability acid transfer for demanding chemical processes.
لمزيد من المعلومات حول المكونات وكيفية عملها، يُرجى قراءة مقالنا: كيف تعمل مضخة الدفع المغناطيسي
Why CYQ Magnetic Drive Sulfuric Acid Transfer Pump – Media Compatibility & Industrial Applications
The CYQ magnetic drive sulfuric acid transfer pump from مضخة تشانغيو is engineered to solve one core problem in acid fluid handling: safe and stable transfer of highly corrosive, hazardous, and high-purity sulfuric acid (H2SO4) without leakage risk. By adopting a magnetic coupling drive instead of a mechanical seal, the pump achieves a fully sealed structure that eliminates shaft seal failure and significantly reduces maintenance downtime and environmental risk. The pump body is built on a reinforced metallic casing structure with 8–15 mm FEP or PFA fluoroplastic lining, ensuring strong resistance against aggressive chemical corrosion while maintaining mechanical strength under industrial pipeline pressure conditions. The rare-earth magnetic drive system delivers high torque transmission without contact, ensuring long-term stable operation even under high specific gravity conditions up to 1.84 kg/L.
CYQ magnetic drive pump is compatible with a wide range of sulfuric acid media, including dilute sulfuric acid (<70%), 98% concentrated sulfuric acid, oleum, and acidic pickling waste streams. It is designed for conditions where conventional metallic centrifugal pumps fail due to rapid erosion-corrosion or hazardous dynamic seal leakage.
Typical applications include steel pickling lines, hydrometallurgical leaching loops, chemical synthesis plants, lithium battery precursor manufacturing, and industrial wastewater neutralization systems. Wherever safety, corrosion resistance, and zero leakage are required, CYQ magnetic drive sulfuric acid transfer pump provides a reliable and engineered solution for critical process fluid transfer tasks.
الصناعات الدوائية والكيميائية الدقيقة
النقل الآمن للمبيدات السائلة والمبيدات الحشرية والمواد الكيميائية الخطرة الأخرى.
محلول حمضي بدرجة حرارة عالية
معالجة مياه الصرف الصحي
للتكوينات المخصصة أو ظروف التشغيل المحددة:
Changyu Pump supports tailored options including explosion-proof certification, high-torque heavy-duty motors, and intelligent dry-run power monitors. Contact us for a safe, leak-free solution configured to your exact acid concentration, process temperature (up to 180°C), flow rate, head, and NPSHa requirements.
Need a quick answer or a tailored quote? Our engineering team responds within 24 hours with one-on-one support.
البريد الإلكتروني: [email protected]
واتساب: +86-13651913727
Changyu Pump Industry: Professional Sulfuric Acid Transfer Pump Factory in China
Changyu Pump Industry has over 20 years of experience manufacturing and supplying high-quality sealless magnetic drive pumps, specializing in fluid handling for severe sulfuric acid (H2SO4) applications. As a professional sulfuric acid transfer pump manufacturer and supplier, we utilize advanced production equipment, a dedicated engineering team, and rigorous quality control procedures to provide global chemical facilities with reliable, leak-free solutions.
Our heavy-duty magnetic drive pumps are engineered to withstand the most aggressive acid behaviors, including dynamic erosion from 98% concentrated sulfuric acid, electrochemical corrosion from dilute acid, and sudden thermal spikes from exothermic blending reactions. This renders them ideal for high-consequence industries such as steel pickling, hydrometallurgical leaching, lithium battery precursor chemical dosing, and industrial wastewater treatment. We also offer custom-engineered designs to meet strict operational parameters. Contact us today for a customized quote or technical consultation!
Based on your actual working conditions, we will precisely match the optimal pump configuration to provide an accurate fluid handling solution. For professional technical consulting, please contact us!
الأسئلة الشائعة
اطلب عرض أسعار مجاني
يُرجى ملء تفاصيل السائل الذي يتم ضخه، بما في ذلك التدفق والرأس والجاذبية النوعية ودرجة الحرارة، حتى نتمكن من التوصية بأفضل مضخة وتقديم عرض أسعار دقيق.