Introduction
The HDH401 corrosive liquid magnetic pump is specially developed for transporting acid, alkali and various chemical media, ideal for working conditions involving strong acids and alkalis. Featuring a sealless magnetic drive and fully enclosed structure, it completely eliminates medium leakage and ensures safe operation. As a PTFE lined magnetic pump for chemicals, it is lined with high-quality PTFE, delivering outstanding resistance to acids, alkalis and chemical corrosion. It enables stable long-term transfer of strong acid liquids, strong alkali solutions and diverse complex chemical media.
Adopting contact-free magnetic drive, the pump runs smoothly with low vibration, low failure rate and easy maintenance, supporting prolonged continuous operation. Widely used in fine chemicals, pharmaceuticals, electroplating, environmental protection and other industries, the HDH401 corrosion resistant magnetic pump for alkali is the optimal choice for safe and fully enclosed transfer of strong acids, strong alkalis and various corrosive chemical materials.
Technical Parameter
Model | Inlet * Outlet | Specifc Gravity | Min Flow-MaxHead (L/min-m) | StandardFlow- Head (L/min-m) | Maximumflow (L/min) | Motor power (kw) | Weight (kg) |
HDH401 | G1½*G1½(40*40) | 1.05 | 10-18 | 200-12 | 330 | 0.75,2P | 18 |
Key Advantages
1. Full Integral PTFE Lining, Comprehensive Acid & Alkali Resistance
All wetted parts including pump chamber and flow passages are equipped with one-piece PTFE lining. Different from partial coating processes, this PTFE lined chemical magnetic pump fully resists penetration and corrosion from concentrated strong acids, alkalis and mixed corrosive media, delivering more durable and stable anti-corrosion performance.
2. Sealless Magnetic Structure, Zero Leakage & Pollution Control
Adopting shaft-seal-free magnetic drive design, the HDH401 corrosive liquid magnetic pump features a fully enclosed structure that completely stops leakage of corrosive media. It protects on-site equipment and operating personnel, and prevents secondary pollution caused by chemical spillage.
3. Wide Temperature Adaptability & Excellent Media Compatibility
The PTFE lining boasts outstanding temperature resistance and operates stably within normal working temperature ranges. As a magnetic pump for strong acid transfer, it is compatible with various complex chemical media such as acids, alkalis and organic solvents, covering a wide range of application scenarios.
4. Contact-Free Drive, Low Wear & Long Service Life
The magnetic coupling operates without mechanical friction, slowing component aging. When continuously transferring corrosive materials, it achieves a far longer service life than traditional mechanically sealed pumps.
5. Simplified Structure for Easy Maintenance & Cost Reduction
Removing wear-prone sealing components, the pump has a compact and reliable structure with low maintenance frequency. It effectively cuts the overall costs of equipment inspection and spare parts replacement under acid and alkali working conditions.
Typical Applications
● Lithium battery electrolyte waste acid transfer
Featuring integrated full PTFE lining, the HDH401 resists micro-penetration of hydrofluoric acid mixed waste acid and avoids lining delamination common to spray-coated pumps, suitable for long-term circulating transfer of lithium battery waste acid.
● Printing and dyeing concentrated alkali mother liquor transfer
As a corrosion-resistant alkali liquid magnetic pump, HDH401 adopts temperature-resistant alkaline lining structure and withstands corrosion of 80℃ concentrated caustic soda solution, adapting to dual working conditions of strong alkali corrosion and high-temperature aging.
● Alternate transfer of acid-base media in fine chemical industry
With fully PTFE-lined wetted parts free of material compatibility defects, it supports alternate transfer of strong acids, strong alkalis and halogenated organic solvents without pipeline cleaning to prevent cross reaction of media.
Dimension(mm)
Model | W | H | L | a | b | c | d | e | f | g |
HDH401 | 161 | 255 | 528 | 132 | 55 | 103.5 | 116 | 139 | 105.5 | 176 |
FAQ
Q: How to handle colloidal impurities adhering to the pump cavity?
A: 1) Short-term online treatment: Leveraging the hydrophobic and alkali-repellent properties of the smooth PTFE lining of HDH401 PTFE-lined chemical magnetic pump, turn on the bypass pipeline for fresh water circulating flushing for 5 to 10 minutes. The turbulent flow will strip adhered colloids without pump disassembly.
2) Long-term preventive treatment: Install an 80-100 mesh basket filter on the front pipeline to intercept macromolecular dye colloids and prevent impurities from attaching to the pump cavity.
3) Severe adhesion treatment: Stop the pump and conduct circulating soaking cleaning with normal-temperature dilute alkali solution. The PTFE lining resists dilute alkali corrosion with no damage, and the pump can be restarted directly after cleaning.
Q: Will heat generated by neutralization of residual media during acid-alkali switching damage internal pump components?
A: Conventional slight neutralization heat will not damage internal components of HDH401. Risks only occur when massive residual media are mixed. Firstly, the integrated PTFE lining withstands temperatures up to 260℃, far exceeding the conventional temperature rise of 20-45℃ caused by acid-alkali neutralization, avoiding lining softening, bulging and debonding. Secondly, contact-free magnetic transmission generates no extra frictional heat, and the pump casing with built-in convection structure dissipates residual heat rapidly. Only direct medium switching with massive residual liquid left in the pump will cause thermal stress on the inner isolation sleeve.
Prevention solution: Turn on short-circuit pipeline circulation to empty residual liquid before medium switching. No pump disassembly is required to avoid thermal damage thoroughly.
Q: Will corrosive fluids permeate and cause liquid leakage during transportation?
A: No permeation or leakage will occur under standard operating conditions. As a corrosion resistant magnetic pump for alkali, HDH401 features seamless integrated lining with no layered gaps. Its PTFE lining is high-pressure compounded with carbon steel pump casing to block micro-permeation of small corrosive molecules. Combined with the sealless fully enclosed magnetic structure with zero shaft seal leakage points, it eliminates liquid leakage from lining permeation and shaft seal outflow.
Notes: Over-temperature and over-negative-pressure operation are strictly prohibited. Long-term over-negative-pressure operation will cause lining collapse and structural failure, resulting in medium permeation.
Q: Where to buy the HDH401 corrosive liquid magnetic pump ?
A: You may contact our sales team via the email juicy@sxhono.com.cnto obtain product specifications, quotations and selection recommendations. If you have special application requirements, we can also provide you with customized fluid transfer solutions.
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