HHF fluorine lined chemical centrifugal pump

1. Six Core Features of the Product

1. National standard improved non-metallic anti-corrosion structure ensures stable operation with low maintenance and operationOptimized and improved with international non-metallic pump processes, thickening spindle diameter and shortening pump body span to enhance high-speed operation stability, while simultaneously reducing long-term maintenance frequency and operating energy consumption; It has high overall rigidity strength, is resistant to erosion, and is not prone to aging or cracking, making it suitable for 7×24 hours continuous hazardous chemical conveying conditions.

2. CFD simulates fluoroplastic hydraulic components, offering strong universal interchangeabilityThe pump body, impeller, and pump cover are all designed through CFD fluid dynamics simulation, using fluoroplastic molded and sintered integrated molding, featuring a wide and smooth flow channel, high conveying efficiency, and excellent cavitation residual performance; All hydraulic components are modularly designed, with interchangeable parts for models of the same caliber, reducing the cost of spare parts inventory.

3. Perfluoroplastic corrosion-resistant per-flow parts, suitable for extreme corrosive mediaThe core flow flow material is PTFE, FEP, and PFA fluoroplastics, commonly known in the industry as the "King of Plastics." It can withstand corrosive media of any concentration of acids, alkalis, salts, and strong oxidizers. It can stably transport highly corrosive chemicals such as hydrofluoric acid, chromic acid, and aqua regia, with no risks of media penetration or corrosion penetration, making it a suitable alternative to expensive special alloy chemical pumps.

4. External adjustable bellows mechanical seal, with multiple materials of movable and stationary rings availableUses an external bellows mechanical seal, allowing adjustment of sealing tightness without disassembling the entire machine; The sealing movable-static ring can be selected as needed from silicon carbide, ceramic, and cemented carbide materials, suitable for microcrystallized, high-temperature, toxic, and highly volatile media, preventing leakage and volatilization from the source.

5. The medium is self-lubricating and cooling, with no need for external auxiliary water circuitsRelying on the delivery of the chemical solution itself to lubricate bearings and cool the pump body, eliminating the need for external cooling water and lubricating oil pipelines, simplifying on-site piping layout, reducing the footprint of the entire equipment, and lowering the procurement costs of pipelines, water tanks, and other auxiliary materials.

6. Dual-structure national standard universal body, on-site replacement without needing piping modificationsIt is divided into two installation structures: long-frame coupling type and short-frame direct-connected type. The overall flange and base dimensions comply with international chemical pump general standards, and can be directly interchanged with stainless steel and fluorine-lined centrifugal pumps of the same specifications on the market. Upgrading new or old production line equipment does not require altering the original piping and foundation base.

2. Structure diagram

3. Full range of product performance specifications

Parameter remarks

The standard design pressure for the entire machine is 1.6MPa, with a standard compatible medium temperature range of -20°C to 120°C. The custom high-temperature PTFE unit can withstand up to 180°C; If the specific gravity of the conveyed medium exceeds 1.3g/cm³, advance notification is required during the ordering stage. The factory customizes the motor to increase torque and power to match the high specific gravity load; All models can be optionally equipped with explosion-proof motors, multi-material sealing kits, external sealing flushing and cooling pipelines, and online leak monitoring devices as needed.

4. Explanation of the compatibility conditions for each fluoroplastic and sealing material

FEP fluoroplastic pump casing liner compatible with conventional etching agents at 20~120°C, suitable for electroplating conventional acids and alkalis, low-concentration oxidizers, and cannot be used for high temperature above 120°C or high-concentration high-temperature strong oxidizing media; PTFE fluoroplastic impellers and pump covers a temperature resistance range of -20~180°C. Hydrofluoric acid, chromic acid, aqua reagia, various organic solvents, and strong oxidizers can all be stably conveyed. There are no prohibited scenarios for conventional highly corrosive media, and it is preferred in extremely hazardous chemical conditions. Silicon carbide sealing dynamic and stationary rings are adapted to contain trace amounts of soft crystals and various conventional acidic and alkaline hazardous liquids, offering ultra-high hardness, wear resistance, and crystallization resistance, strong versatility, and long service life. Ceramic seals are suitable for clean, particle-free, high-purity corrosive reagents and pharmaceutical extraction solutions, with no metal ion precipitation, ensuring reagent purity; Cemented carbide seals are suitable for high temperatures, high viscosity, and corrosive media at 120~180°C, resistant to high temperature and pressure, and suitable for long-cycle high-temperature continuous conveying conditions.

5. Applicable industries and corresponding working scenarios

Petroleum, fine hazardous chemicals, and chemical industries

Used for the closed-loop conveying of hydrofluoric acid, high-temperature strong acid reaction solutions, and volatile organic solvents, with priority given to DN40 to DN200 high-power explosion-proof models; The full PTFE fluoroplastic flow-through components are resistant to extremely strong corrosive media. The explosion-proof motor paired with a leak-proof sealing structure completely eliminates safety hazards such as flammable and explosive solvent evaporation, static electricity, fire, and explosion. It is suitable for chemical reactor circulation and hazardous chemical raw material storage tank transfer processes.

Electroplating and PCB circuit board manufacturing industries

Transporting acidic etch, alkaline etch, plastic roughened hydrofluoric acid, chromium-plated high-concentration chromatic acid, and other highly oxidizing and corrosive chemicals, using DN25, DN32, DN40 small to medium flow specifications; The fluorine-lined material is completely resistant to strong corrosion from chromium anhydride and hydrofluoric acid, with no metal ion precipitation, preventing pinholes and oxidation defects on the circuit board surface, and is compatible with a dedicated chromic acid filter unit for recycling.

Pharmaceuticals, active pharmaceutical ingredients, and fine chemical industries

Transporting high-purity strong acid extraction reagents, highly corrosive pharmaceutical intermediates, and sterile organic solvents, using DN25 and DN50 small-flow PTFE fully fluorine-lined models; Fluoroplastic flow-through parts have no impurity leaching, the entire machine runner is smooth with no dead spots left by chemical residues, facilitating CIP online cleaning and complying with pharmaceutical clean safety production standards.

Rare earth and mining and smelting industries

For transporting strong acid leachate and rare earth extract high-density corrosive agents, select DN65 and DN80 medium-to-high head models; The wide-channel fluoroplastic impeller withstands trace slurry crystal erosion, while the high-torque motor is adapted for high-density slurry solution, ensuring stable long-cycle circulation of extraction chemicals.

Hazardous waste and large-scale environmental wastewater treatment industry

Used for long-distance lifting and conveying of high-concentration heavy metal waste acids, chlorine-neutralized waste liquids, and oxidative decolorization agents, using DN100, DN125, DN150 high-flow fluorine-lined models; It can directly extract the media from underground hazardous waste liquid pools without installing a foot valve, and is compatible with fully automatic unattended hazardous waste treatment equipment.

Military industry and scientific research laboratory

Transporting highly toxic, high-purity, strong corrosive hazardous chemical agents and high-temperature oxidizers, using DN25 minimum flow rate models, equipped with sealed leak monitoring devices; The entire machine is fully sealed, with no chemical evaporation, isolating the spread of toxic corrosive gases to protect operator safety. It is suitable for laboratory sample purification and precision chemical formulation processes.

6. Precautions for Model Selection and Safe Use

1. Specific gravity specification: Standard factory motors are only compatible with liquids with a specific gravity ≤ 1.3g/cm³. If the specific gravity of the chemical solution exceeds this value, it must be notified during the order stage to customize a high-power torque enhancement motor to prevent magnet decoupling and prolonged motor overload burnout.

2. Medium particle restrictions: This machine only allows the conveying of media containing trace amounts of soft crystals. It is strictly forbidden to transport chemical liquids containing hard slag or blocky hard precipitates. Solid hard particles can quickly wear down silicon carbide seals and PTFE fluoroplastic linings, causing insulation damage and large-scale leakage of highly corrosive hazardous chemical liquids, causing major safety incidents.

3. No idle operation allowed: Before starting, the pump chamber must be fully filled with the transporting chemical; dry operation without medium is strictly prohibited; When idle, mechanical seals and fluoroplastic liners are cooled without medium lubrication, and can be worn down by high temperatures in a short time, causing leakage of highly corrosive and hazardous chemicals.

4. Medium temperature classification: Standard FEP liner fits the entire machine - 20~120°C room temperature corrosive media; When the medium temperature exceeds 120°C to 180°C, a custom full PTFE high-temperature machine paired with a cemented carbide high-temperature sealing kit is required. Prolonged high temperatures accelerate the aging and cracking of FEP materials.

5. Explosion-proof requirements: When transporting flammable and explosive volatile organic solvents such as alcohol, acetone, and xylene, the entire machine must be equipped with an explosion-proof three-phase industrial 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 assembly must be used with a silicon carbide wear-resistant seal; 304/316 stainless steel and FRPP plastic materials cannot withstand such media and will corrode, perforate, and leak 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, fluoroplastic lining materials, motor power, explosion-proof configurations, and sealing accessory sets. We simultaneously 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 PTFE high-temperature resistant fully lined fluorine complete machines, extended inlet and outlet flanges, complete sets of cemented carbide high-temperature wear-resistant sealing kits, explosion-proof complete machine 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 impeller spindle drive assemblies enjoy full machine warranty; Mechanical seals, shaft sleeves, fluoroplastic liners, sealing gaskets, and other consumables are always in stock. Nationwide multi-warehouse stock is shipped within 48 hours, with 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 flow head, high-temperature continuous conveying stability, long-term operation of highly corrosive media, and on-site verification of 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

HHF fluorine-lined chemical centrifugal pump + HCL chromic acid dedicated filtration unit | PCB, plastic chrome plating coarseness, highly corrosive chromic acid, hydrofluoric acid chemical liquid circulation complete set equipment HHF explosion-proof fluorine-lined centrifugal pump + chemical reactor circulation system | sealed conveying circulation of highly corrosive, flammable, and explosive organic solvents hazardous chemical raw materials HHF high-flow fluorine-lined centrifugal pump + integrated hazardous waste wastewater treatment equipment | underground high-concentration acidic hazardous waste liquid lifting and neutralizing automatic agent delivery HHF small fluorine-lined centrifugal pump + pharmaceutical high-purity liquid preparation reaction tank | high-purity strong acid, Pharmaceutical intermediates are transported in a closed loop without metal precipitation