Introduction
The HDH425 high value liquid magnetic pump is a professional high-precision transfer pump designed for conveying various high-value liquid materials. Adopting a sealless magnetic drive and fully enclosed structure, it achieves zero leakage, effectively preventing loss of valuable media and contamination by external impurities. With precisely optimized internal flow passages and high-accuracy magnetic coupling components, the pump operates stably with steady flow and high delivery precision, minimizing medium disturbance, volatilization and material loss.
Fabricated from high-quality low-leaching materials, it features excellent cleanliness and good chemical resistance. It is suitable for high-value liquids such as high-purity reagents, electronic chemicals, essences, precious metal solutions and premium daily chemical raw materials. This high precision liquid transfer pump runs with low vibration and noise, and ensures long-term stable continuous operation. Widely used in biopharmaceuticals, semiconductors, fine chemicals, flavor production and precious metal processing, it is an ideal choice for fluid transfer requiring high value, high cleanliness and high precision.
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) |
HDH425 | G1½*G1½(50*40) | 1.0 | 50-29 | 400-25.5 | 600 | 4,2P | 47 |
Key Advantages
1. High-precision transfer with stable and controllable flow
Fitted with precision magnetic coupling and optimized streamlined flow passages, this HDH425 magnetic pump features minimal flow fluctuation and much higher transfer accuracy than conventional models. It greatly reduces disturbance and volatilization of high-value liquids to avoid material loss.
2. Low leaching & high cleanliness, no medium contamination
Constructed with special low-leaching materials, the pump generates no debris from internal mechanical friction. Combined with the fully enclosed leakproof structure, it effectively preserves the purity of high-purity potions and fine raw materials, complying with strict cleanliness standards for high-end industries.
3. Low noise & vibration, ideal for precision working conditions
The finely adjusted drive system operates with ultra-low vibration and noise. As a high precision liquid transfer pump, it will not alter the properties of sensitive liquids, making it well-suited for laboratories, clean rooms and other demanding environments.
4. Wide corrosion resistance, compatible with various high-value liquids
The materials integrate excellent cleanliness and chemical resistance. It can handle a wide range of high-value liquids including high-purity reagents, electronic etching solutions, essences and precious metal solutions for versatile application.
5. Long-term stable operation and low maintenance cost
Adopting the proven sealless magnetic drive design, it has no wearable shaft seal parts and a low failure rate. It enables long-duration continuous operation with fewer maintenance shutdowns, perfectly matching non-stop production requirements.
Typical Applications
● Recirculation transfer of semiconductor wafer etching solution
With micron-level precise flow passages and low-leaching materials, the HDH425 high precision liquid transfer pump prevents metal ion precipitation and etching solution contamination, meeting strict high-purity liquid supply standards for semiconductor chips.
● Closed-loop transfer of natural flavor raw liquid
Ultra-low flow field disturbance curbs volatilization loss of aromatic organic compounds, cutting the loss rate of high-value flavor raw liquid by more than 12% compared with conventional magnetic pumps.
● Transfer of sterile biopharmaceutical raw materials
Featuring a fully enclosed, debris-free and dead-angle-free structure, it adapts to GMP clean workshops to avoid cross-contamination of raw materials without requiring post-stage filter devices.
Dimension(mm)
Model | W | H | L | a | b | c | d | e | f | g |
HDH425 | 264 | 274.5 | 620 | 230 | 65 | 275 | 135.5 | 139 | 90 | 149 |
FAQ
Q: How to deal with excessive flow fluctuation in the etching process?
A: 1) Short-term emergency solution: Check pipeline air intake and filter clogging, remove impurities from the front filter, and vent accumulated gas inside the pump cavity and pipelines to eliminate instantaneous flow fluctuation caused by gas-liquid two-phase disturbance.
2) Long-term permanent solution: Rely on the original magnetic damping and pressure stabilizing structure of HDH425, and install a matching small pulsation buffer to offset pressure pulses caused by intermittent liquid supply at etching stations.
3) Maintenance prevention: Calibrate the coaxiality of magnetic couplings regularly to prevent unstable impeller speed caused by transmission offset, and restrain flow deviation from the transmission end.
Q: How to solve unstable internal pressure of the magnetic pump when conveying low-viscosity media?
A: 1) Short-term emergency solution: Raise the liquid level before the pump and shorten the suction pipeline to reduce pipeline negative pressure, avoiding internal pressure fluctuation caused by premature vaporization of low-viscosity media. Meanwhile, clean fine debris on the impeller end face to prevent pressure oscillation from unbalanced local flow resistance.
2) Long-term structural optimization: Adopt the exclusive wide-flow-channel impeller of HDH425 high-value liquid magnetic pump. Compared with conventional magnetic pumps, its arc-expanded blade inlet adapts to high fluidity and easy flow separation of low-viscosity media, eliminating internal eddy circulation in the pump cavity.
3) Maintenance notes: Low-viscosity media shall not be conveyed under low-speed no-load operation. Continuous operation above 70% rated load is required to avoid periodic pump cavity pressure fluctuation caused by impeller idling.
Q: Will residual media breed bacteria and affect production?
A: No residual media or bacterial growth will occur under compliant operation. HDH425 is specially optimized for sterile scenarios. Firstly, all wetted inner walls adopt mirror arc polishing with no sharp dead corners or microscopic pits, preventing media adhesion and residue fundamentally. Secondly, contact-free magnetic transmission leaves no internal gaps or sealing grooves to eliminate bacterial hiding spots. Thirdly, the pump material resists acid and alkali cleaning, compatible with CIP high-temperature alkaline cleaning and pure water rinsing processes in the biopharmaceutical industry.
Risk cause and solution: Bacteria only breed if the pump is shut down for a long time without cleaning. After each production shift, circulate and flush with purified water for 3 to 5 minutes, drain residual liquid in the pump cavity, and keep the pump cavity at normal pressure and dry during shutdown to meet GMP sterile production standards.
Q: Where to buy the HDH425 high value liquid magnetic pump?
A: You may contact our sales team via the email juicy@sxhono.com.cn to 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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