HMD-F fluorine lined self-priming magnetic pump

1. Eleven Core Features of the Product

1. High-power, high-head, fully sealed magnetic transmission structureMagnetic coupling transmission completely replaces traditional mechanical shaft seals, with the medium being fully sealed and isolated throughout the process, eliminating leakage and volatilization issues of dynamic seals, and no contamination of the workshop by medium leakage. The overall technical specifications are benchmarked against imported high-end chemical magnetic pumps, adapted for 24-hour continuous hazardous chemical conveying conditions.

2. The entire machine is fully lined with fluoroplastic flow-through componentsAll parts of the pump body, inner rotor, impeller, and isolation sleeve that come into contact with the chemical solution use PTFE/FEP fluoroplastic integrated molded lining. The carbon steel shell only provides pressure support, and the medium does not contact the metal substrate at all. It can withstand extremely strong corrosive media such as hydrofluoric acid, chromic acid, and aqua regia.

3. High-temperature resistant permanent magnet magnet assemblyStandard ferrite permanent magnets and optional samarium-cobalt high-temperature magnets can be used. Long-term temperature resistance reaches up to 260°C, magnetic stability remains stable at high temperatures, does not cause magnet decoupling or shutdown, and long-term continuous operation shows no significant degradation in flow or head.

4. Silicon carbide / PTFE wear-resistant self-lubricating bearing systemThe shaft sleeve and sliding bearings are made of silicon carbide or pure PTFE material, with internal reserved lubrication grooves for media. Lubrication and cooling are completed by the agent itself, eliminating the need for external independent cooling water or lubrication pipelines, simplifying the layout of the entire equipment.

5. 4-meter external mixed gas-liquid separation self-priming systemThe pump body integrates an independent liquid suction chamber, liquid storage chamber, and gas-liquid separation chamber. After startup, the impeller automatically stirs the air and chemical mixture in the pipeline to form a gas-water mixture, which enters the separation chamber and releases air. After draining the pipeline, the vacuum can be automatically rebuilt, requiring no foot valve or manual pre-filling of the pump. Stable liquid suction can be achieved in underground hazardous chemical storage tanks or remote ground installation.

6. Fully static sealing completely prevents media leakageThe entire machine eliminates all dynamic shaft seal structures and uses all static seals made of fluoroplastic and fluororubber, structurally solving the problems of traditional centrifugal pump dripping and chemical volatilization pollution, greatly reducing hazardous chemical chemical loss and workshop corrosion safety hazards.

7. No need for independent lubrication and cooling auxiliary water circuitsRelying on the delivered medium itself to lubricate bearings and cool the pump body, eliminating the need for external cooling water tanks and lubrication oil circuits, reducing on-site piping and accessory purchases, minimizing the space occupied by the entire equipment, and lowering long-term operation and maintenance costs.

8. Post-pull no-disassembly pipeline maintenance structureThe direct-coupled post-pull overall layout allows maintenance to be completed by simply pulling the internal current-through components backward during maintenance and replacement of impellers, bearings, and isolation sleeves.

9. Horizontal heavy-duty shock-absorbing base with low noise and smooth operationThickened carbon steel anti-corrosion spraying integrated base and horizontal coaxial direct-drive design, the entire machine has extremely low vibration amplitude and low operating noise, suitable for enclosed hazardous chemical plants, laboratories, and noise control areas within plant areas.

10. External magnet directly connected to the motor, delivering efficient transmission with low lossesThe external magnetic assembly is directly connected to the motor output shaft, relying on contactless coupling of the magnetic field to transmit torque, resulting in low power transmission losses. Under the same flow and head conditions, the motor consumes less power, and long-term continuous production can save a significant amount of electricity costs.

11. All models support optional explosion-proof motorsAll models can be upgraded to explosion-proof three-phase industrial motors, eliminating static electricity and fire hazards when transporting volatile, flammable, and explosive organic solvents such as alcohol, ketones, and esters, fully meeting hazardous chemical explosion-proof safety production standards.

2. Structure diagram

3. Full range of product performance specifications

Parameter remarks

The standard design pressure for the entire machine is 1.6MPa, with an applicable temperature range of 20°C to 120°C for medium and a maximum short-term temperature resistance of up to 260°C; Standard maximum self-priming height is 4 meters; If the specific gravity of the conveyed medium exceeds 1.3g/cm³, advance notification must be given when ordering. The factory customizes the increased torque magnetic steel assembly; All models are optional with temperature monitoring devices, anti-slip protection devices, and online leak monitoring devices; All models listed in the table can be equipped with explosion-proof motors as needed.

4. Explanation of the suitable working conditions for each fluorine-lined material

PTFE PTFE lining can withstand conventional corrosive chemicals at 20~120°C, with short-term high temperatures up to 260°C. It is compatible with hydrofluoric acid, chromic acid, aqua regia, various strong acids and bases, chlorine-containing media, strong oxidizers, and most organic solvents. There are no prohibited scenarios for conventional strong corrosive media, making it a general anti-corrosion material for chemical hazardous chemical transportation. FEP fluoroplastic liners are suitable for temperatures 20~105°C, suitable for conventional acids and alkalis, low-concentration oxidizers, and electroplating corrosive solutions, and cannot be used in high-temperature conditions exceeding 105°C or in high-concentration, high-temperature, strong oxidizer media. Silicon carbide bearings are compatible with corrosive chemicals containing trace crystals and fine solid particles, offering ultra-high hardness, wear resistance, and crystallization resistance, resulting in a longer service life. PTFE PTFE bearings are suitable for clean, particle-free, high-purity corrosive reagents, with no metal ion precipitation, making them suitable for transporting high-purity pharmaceutical agents; Fluororubber sealing gaskets are compatible with various acids, alkalis, and organic solvents, making them corrosion-resistant and aging-resistant, and suitable for a wide temperature range of working conditions.

5. Applicable industries and corresponding working scenarios

Petroleum and fine chemical industry

Used for closed circulation conveying of strong acids, hydrofluoric acid, high-temperature hazardous chemical liquids, and various organic solvents, with priority given to explosion-proof high-power models; The PTFE lining is highly resistant to extremely corrosive media, with a magnetic leak-proof explosion-proof structure that completely eliminates the risk of volatilization from flammable and explosive media and static electricity fires, suitable for reactor circulation and hazardous chemical storage tank transfer processes.

Electroplating, PCB circuit board industry

Conveying highly oxidizing and corrosive chemicals such as acidic etch, alkaline etch, plastic roughened hydrofluoric acid, chromic acid, etc., using DN32 and DN40 low to medium flow specifications; The fully fluorine-lined material resists strong corrosion from chromic anhydride and hydrofluoric acid. With a self-priming capacity of 3~4 meters, it can directly extract chemical liquid from underground hazardous chemical storage tanks. The entire machine is installed on the ground without immersion in the tank, simplifying production line pipeline layout.

Pharmaceuticals, active pharmaceutical ingredients, and fine chemical industries

Transporting high-purity strong acid reagents, pharmaceutical extraction intermediates, and highly corrosive organic solvents, using DN32 and DN50 low-flow PTFE liner models; PTFE flow-through components have no metal ion precipitation, are fully sealed with no leakage or contamination, ensuring the purity of pharmaceutical raw materials and suitable for sterile solution preparation and extraction purification processes.

Hazardous and environmental wastewater treatment industry

It is used for long-distance lifting and conveying of high-concentration heavy metal waste acids, chlorine-neutralized waste liquids, and oxidative decolorization agents, using DN50, DN65, and DN80 high-flow self-priming models; It can directly extract the media from underground hazardous waste liquid tanks without the need for a foot valve, and is stably compatible with fully automatic unattended hazardous waste treatment equipment.

mining and metallurgy, rare earth smelting industry

For transporting strong acid leachate smelting and rare earth extraction high-density corrosive agents, DN40 and DN50 medium-flow high-lift models are selected; The fluorine-lined material is resistant to strongly acidic media in mining and metallurgy, and the high-torque magnet can be adapted to high-density slurry solutions, ensuring stable circulation of extracted reagents.

Military industry and scientific research laboratory

Transporting high-purity, strong corrosive hazardous chemical reagents and highly toxic oxidizers, selecting DN32 minimum flow models, equipped with leak monitoring devices; The entire machine is fully sealed and non-volatile, preventing the volatilization of highly toxic and highly corrosive agents from harming operator safety, suitable for laboratory sample development and precision purification processes.

6. Precautions for Model Selection and Safe Use

1. Medium specific gravity specification: The standard factory model is only suitable for liquids with a specific gravity ≤1.3g/cm³. If the specific gravity of the liquid exceeds this value, it must be informed at the ordering stage and high-torque reinforced magnets can be customized to prevent the magnets from decoupling and idling to burn the motor.

2. Medium particle limitation: This machine only allows the conveying of media containing trace amounts of soft crystals. It is strictly forbidden to transport chemical liquids containing hard particles or large amounts of blocky precipitates. Solid particles can rapidly wear down the silicon carbide/PTFE sliding bearings and fluorine-lined isolation sleeves, causing lining damage and leakage of highly corrosive media.

3. No idle operation: Before starting, ensure the pump chamber is completely filled with liquid; dry operation without medium is strictly prohibited; When the bearing is running idle without medium lubrication and cooling, it will wear through the fluorine-lined isolation sleeve in a short time, causing major safety incidents such as leakage of highly corrosive and hazardous chemical liquids.

4. Medium temperature classification: Standard PTFE fluorine-lined machines are suitable for corrosive media at 20~120°C at room temperature; If the dielectric temperature exceeds 120°C, custom high-temperature resistant samarium-cobalt magnets are required. Prolonged high temperatures will permanently degrade the magnet's magnetism, causing significant degradation in flow rate and head.

5. Explosion-proof requirements: When transporting flammable and explosive organic solvents such as acetone, alcohol, and xylene, the entire machine must be equipped with an explosion-proof three-phase motor; Ordinary motors lack explosion-proof protection for wiring and heat dissipation, posing major safety hazards such as static electricity fires and explosions.

6. Corrosion strength classification: For highly corrosive media such as hydrofluoric acid, chromic acid, and aqua regia, a fully fluorine-lined PTFE configuration must be used with silicon carbide wear-resistant bearings. FRPP and ordinary stainless steel cannot withstand such media, leading to corrosion, perforation, and leakage within a short time.

7. Supporting Services and After-Sales Support

Free professional selection service for hazardous chemical conditions: Based on customers' corrosive components, medium temperature, specific gravity, required conveying flow, and vertical head, we match compatible models, fluorine-lined materials, motor power, explosion-proof configurations, and monitoring accessory sets. We also provide flow rate and head performance curves, complete machine CAD installation dimension drawings, and fluoroplastic corrosion-resistant media comparison tables. Non-standard customization services: supports samarium-cobalt high-temperature resistant magnets, thickened PTFE liners, extended inlet and outlet flanges, and complete sets of silicon carbide wear-resistant bearing kits for customization; Optional installation includes online leak monitoring, media temperature measurement, and anti-slip protection devices; customized drawings and official quotations are provided within 7 working days. Original factory complete machine warranty service: drive motors, fluorine-lined pump bodies, and magnetic transmission trains enjoy full machine warranty; Bearings, bushings, sealing gaskets, isolation sleeves, and other consumables are always in stock, with nationwide multi-warehouse stock available for fast 48-hour shipping, and online remote video guidance for on-site disassembly and repair. On-site sample testing support: Samples can be delivered to customers' production sites for on-site testing of self-priming height, actual flow rate, head, and continuous operation stability under high temperature and strong corrosion, verifying compatibility with hazardous chemical conditions. After passing tests, bulk procurement is carried out to avoid hazardous chemical leakage and production downtime caused by selection errors.

Recommended complete sets of supporting units

HMD-F fluorine-lined self-priming magnetic pump + HCL chromic acid dedicated filtration unit | PCB, plastic chrome plating coarsening highly corrosive chromic acid and hydrofluoric acid liquid circulation complete equipment HMD-F explosion-proof fluorine-lined magnetic pump + chemical reactor circulation system | Highly corrosive, flammable, and explosive organic solvent hazardous chemical raw materials sealed conveying circulation HMD-F high-flow fluorine-lined self-priming pump + integrated hazardous waste treatment equipment | Underground high-concentration acidic hazardous waste liquid lifting and neutralizing agent automatic delivery HMD-F small fluorine-lined magnetic pump + Pharmaceutical High-Purity Preparation Reaction Tank | High-purity strong acids and pharmaceutical intermediates are transported in a closed loop without metal precipitation