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The Hennvi HX horizontal self-priming centrifugal pump adopts an external mixed recirculation dedicated pump body structure, with a closed impeller paired with an extended return chamber design, achieving an ultimate suction reach of 7 meters; Flow coverage is 3.2~550m³/h, head is 12~80m, supporting power is 1.1~132kW, motor speeds are 1450r/min and 2900r/min, suitable for medium temperature -20~80°C, suitable for municipal water supply, building fire protection, chemical clean water, dyeing and printing, farmland irrigation, and light oil product conveying, and other clean, large-particle impurity-free media conveying scenarios. The entire machine has a split quick-release structure, making maintenance simple and occupying a small footprint.
Product Details
The enclosed impeller extends the return chamber, with a maximum suction reach of 7 metersThe impeller ends are equipped with flow guide foot valves, optimizing gas-liquid separation and return channels, with self-priming capacity far superior to ordinary self-priming pumps; Low-level water tanks and underground tanks do not require elevated equipment installation; after draining the pipelines, a vacuum can be quickly formed, eliminating the need for foot valve installation and manual pre-filling pump steps.
Multiple materials available, carbide mechanical seals, which are not prone to leakageStandard is an internally mounted single-face mechanical seal. The dynamic and static friction pairs can be optionally made of silicon carbide or carbide materials as needed. Supports upgraded double-face sealing structures, suitable for clean water and low-concentration organic solvent conditions, ensuring low leakage failure rates during long-term continuous operation.
The split frame has a quick-release structure, eliminating the need for pipe removal during maintenanceThe entire machine adopts an independent split bracket layout. After disconnecting the motor's elastic coupling, there is no need to dismantle the inlet or outlet process pipelines. Simply disassemble the pump chamber end cover to clean the impeller and replace sealing parts. Daily maintenance can be completed by one person, greatly reducing downtime.
Dual-speed silent motor ensures smooth operation with low noiseEquipped with well-known domestic brand three-phase industrial motors, offering two speed settings: 1450 rpm and 2900 rpm, suitable for high-flow low-head and low-flow high-head operating conditions; Paired with a shock-absorbing base, the overall vibration amplitude is low, the machine room operates with lower noise, and the machine lasts longer.
Modular hydraulic components, universal interchangeability of the same diameter, with ample flow capacityThe hydraulic runner adopts a simulation-optimized design, with a smooth and unobstructed interior, ample flow margin, and excellent cavitation performance; Pump bodies, impellers, and seals of the same caliber model are interchangeable; old self-priming pumps can be directly replaced for old self-priming pumps during production line renovations, reducing spare parts inventory costs.
serial number | Part name | Material and function description | Maintenance Features |
1 | Self-priming pump body, liquid storage return chamber | Cast iron integrated casting, integrating the liquid suction chamber, liquid storage chamber, and gas-liquid separation chamber | The split quick-release structure allows the lid to be opened to clean internal impurities without removing the pipeline |
2 | Enclosed clear water impeller | Cast iron precision cast closed blades with integrated flow guide foot valve design | Improves gas-liquid separation efficiency, increases suction lift, and can be replaced separately after wear |
3 | Mechanical seal assembly | Silicon carbide / Cemented carbide dynamic and static rings, fluororubber sealing gaskets | Clean water conditions are wear-resistant and aging-resistant; seal replacement alone does not require pump head replacement |
4 | Corrosion-resistant spindle and shaft sleeve | The carbon steel spindle is wrapped in a corrosion-resistant shaft sleeve, isolating the spindle from water corrosion | Protects the spindle from moisture corrosion, extending the machine's service life |
5 | Bearing housing, heavy-duty support bearings | Oil-lubricated bearings with built-in heat dissipation structure, suitable for long-term continuous water supply | Dual-speed universal bearing, suitable 24-hour uninterrupted operation |
6 | Split brackets and shock-absorbing bases | Gray cast iron anti-corrosion sprayed base, standard universal mounting holes | Self-priming pumps of the same specifications on the market can be directly interchanged, so no need to modify the base |
7 | Elastic buffer coupling | Buffer coupling structure isolates motor vibration transmission to the pump head | Reduces overall machine noise and reduces bearing fatigue and wear |
8 | Drive motor | 380V three-phase standard motor, all models can be customized explosion-proof motors | Power 1.1~132kW, dual speed options available at 2900/1450 |
Model | Import caliber | Export diameter | Rated flow (m³/h) | Rated lift (m) | Supporting power (kW) | Speed (r/min) | Maximum suction distance (m) | 5-meter pipeline self-priming duration (min) |
25HX3-20 | DN25 | DN20 | 3.2 | 20 | 1.1 | 2900 | 6.5 | 1.9 |
25HX3-32 | DN25 | DN20 | 3.2 | 32 | 1.5 | 2900 | 6.5 | 1.8 |
32HX3-20 | DN32 | DN25 | 3.2 | 20 | 1.1 | 2900 | 6.5 | 1.8 |
32HX3-32 | DN32 | DN25 | 3.2 | 32 | 1.5 | 2900 | 6.5 | 1.8 |
32HX3-50 | DN32 | DN25 | 3.2 | 50 | 3 | 2900 | 6.5 | 1.8 |
40HX6.3-20 | DN40 | DN25 | 6.3 | 20 | 1.1 | 2900 | 6.5 | 1.9 |
40HX6.3-32 | DN40 | DN25 | 6.3 | 32 | 2.2 | 2900 | 6.5 | 1.8 |
40HX10-40 | DN40 | DN32 | 10 | 40 | 4 | 2900 | 6.5 | 1.5 |
40HX6.3-50 | DN40 | DN25 | 6.3 | 50 | 4 | 2900 | 6.5 | 1.5 |
50HX15-12 | DN50 | DN32 | 15 | 12 | 1.5 | 2900 | 6.5 | 2.4 |
50HX18-20 | DN50 | DN32 | 20 | 30 | 2.2 | 2900 | 6.5 | 1.5 |
50HX12.5-32 | DN50 | DN32 | 12.5 | 32 | 3 | 2900 | 6.5 | 1.5 |
50HX10-40 | DN50 | DN32 | 10 | 40 | 4 | 2900 | 6.5 | 1.5 |
50HX12.5-50 | DN50 | DN32 | 12.5 | 50 | 5.5 | 2900 | 6.5 | 1.3 |
65HX15-60 | DN65 | DN50 | 25 | 60 | 7.5 | 2900 | 6.5 | 1.3 |
65HX20-75 | DN65 | DN50 | 20 | 75 | 11 | 2900 | 6.5 | 1.3 |
65HX30-15 | DN65 | DN50 | 30 | 15 | 3 | 2900 | 6 | 2 |
65HX25-32 | DN65 | DN50 | 25 | 32 | 5.5 | 2900 | 6 | 1.5 |
65HX25-50 | DN65 | DN50 | 25 | 50 | 7.5 | 2900 | 6 | 1.3 |
65HX25-60 | DN65 | DN50 | 25 | 60 | 11 | 2900 | 6 | 1.3 |
65HX25-75 | DN65 | DN50 | 25 | 75 | 15 | 2900 | 6 | 1.3 |
80HX35-16 | DN80 | DN65 | 35 | 16 | 3 | 2900 | 6 | 3.4 |
80HX43-17 | DN80 | DN65 | 43 | 17 | 4 | 2900 | 6 | 1.8 |
80HX40-22 | DN80 | DN65 | 40 | 22 | 5.5 | 2900 | 6 | 1.9 |
80HX50-25 | DN80 | DN65 | 50 | 25 | 7.5 | 2900 | 6 | 1.9 |
80HX50-32 | DN80 | DN65 | 50 | 32 | 9.5 | 2900 | 6 | 1.5 |
80HX60-55 | DN80 | DN65 | 60 | 55 | 18.5 | 2900 | 6 | 1.5 |
100HX70-20 | DN100 | DN80 | 70 | 20 | 11 | 2900 | 6 | 1.2 |
100HX100-32 | DN100 | DN80 | 100 | 32 | 15 | 2900 | 6 | 1.8 |
100HX100-40 | DN100 | DN80 | 100 | 40 | 22 | 2900 | 6 | 1.8 |
100HX100-65 | DN100 | DN65 | 100 | 65 | 30 | 2900 | 6 | 1.8 |
100HX70-80 | DN100 | DN65 | 70 | 80 | 37 | 2900 | 6 | 1.8 |
150HX160-55 | DN150 | DN125 | 160 | 55 | 45 | 1450 | 5 | 1.8 |
150HX150-80 | DN150 | DN125 | 150 | 80 | 55 | 1450 | 5 | 1.2 |
150HX170-65 | DN150 | DN125 | 170 | 65 | 55 | 1450 | 5 | 1.2 |
200HX400-32 | DN200 | DN150 | 400 | 32 | 55 | 1450 | 5 | 2 |
200HX280-63 | DN200 | DN150 | 280 | 63 | 90 | 1450 | 5 | 1.5 |
250HX350-32 | DN250 | DN200 | 350 | 32 | 75 | 1450 | 5 | 1.5 |
250HX550-32 | DN250 | DN200 | 550 | 32 | 90 | 1450 | 5 | 2 |
250HX400-50 | DN250 | DN200 | 400 | 50 | 90 | 1450 | 5 | 2 |
300HX450-32 | DN300 | DN250 | 450 | 32 | 90 | 1450 | 5 | 2 |
300HX500-50 | DN300 | DN250 | 500 | 50 | 110 | 1450 | 5 | 2 |
300HX550-55 | DN300 | DN250 | 550 | 55 | 132 | 1450 | 5 | 2 |
The standard design pressure for the entire machine is 1.6MPa, with a suitable temperature range of -20°C~80°C; If the specific gravity of the conveyed medium exceeds 1.3g/cm³, advance notification must be provided when ordering, and the motor should be upgraded and increased to accommodate higher specific gravity loads; The entire series can be optionally equipped with explosion-proof motors, dual-face mechanical seals, and external flushing pipelines as needed; The actual suction lift in use must not exceed the maximum suction lift indicated on each model.
For urban domestic clean water delivery and building fire stabilized water supply, use DN80~DN200 high-flow models; The 7-meter high suction height allows direct extraction of underground clean water tanks without the need for a foot valve, and is paired with a pressure stabilization cabinet for fully automatic water supply and fire protection pressure regulation.
Low-concentration neutral chemical raw materials, dyeing and cleaning water, pharmaceutical clean extraction solvent conveyance, using DN32/DN50/DN65 small to medium flow specifications; The enclosed impeller leaves no impurities and is suitable for clean medium circulation. The explosion-proof motor can be used in hazardous organic solvent chemical environments.
For farmland irrigation water and garden nursery spray water supply, use DN50/DN80 medium-flow models; The split quick-release structure facilitates simple field maintenance, with high self-priming suitable for low-level pond water intake in the wild, allowing direct installation outdoors.
Transport of lightweight, impurity-free oils such as diesel and engine oil, with customized oil-resistant sealing kits; The entire machine has a leak-free structure to prevent oil waste and evaporation, suitable for installation on small oil depots and oil tanker unloading floors.
For small reactor circulation cooling water and laboratory high-purity clean water conveyed, select DN25/DN32 minimum flow rate models; Compact size fits tight equipment racks, low noise does not interfere with laboratory operations.
Media Impurity Specification: This machine is only suitable for clean water and clean media without hard particles. Conveying large amounts of sand, gravel, and blocky impurity wastewater is prohibited, as solid particles can rapidly wear down the impeller and mechanical seals.
Specific gravity specification: Standard motors are only compatible with specific gravity ≤ 1.3g/cm³ liquid. If the specific gravity exceeds the standard, the power of the matching motor must be increased to prevent long-term overload and burnout.
No idle operation allowed: Before starting, the pump chamber must be completely filled with clean water. Without a dry run of the medium, the mechanical seal will be rapidly worn, causing large-area leakage of the medium.
Suction Usage Limit: The actual installed liquid level to the pump body height must not exceed the model limit suction distance. Exceeding this limit will result in weak suction power, continuous cavitation vibration, and significant flow rate attenuation.
Medium temperature classification: Standard fluororubber seal suitable for 20~80°C ambient temperature media; If the medium temperature exceeds 80°C, a custom high-temperature resistant metal wrapping sealing kit is required.
Explosion-proof operating requirements: When transporting alcohol, gasoline, ketones, flammable and explosive lightweight oils and solvents, the entire machine must be equipped with an explosion-proof three-phase motor. Ordinary motors without explosion-proof protection pose fire and explosion hazards.
Free professional selection service for clean water conditions: Based on media type, conveying flow, vertical head, installation suction height, medium temperature and specific gravity, we match the suitable diameter, motor speed power, sealing material, and explosion-proof configuration, simultaneously providing flow rate and head performance curves and complete machine CAD installation dimension drawings. Non-standard customization services: High-temperature sealing kits, explosion-proof complete machines, extended inlet and outlet flanges, double-end flushing sealing systems, and complete outdoor protection machines can all be customized. Customized drawings and official quotations will be provided within 7 working days. Original factory complete machine warranty service: drive motor, cast iron pump body, and impeller spindle assembly enjoy full machine warranty; Mechanical seals, bearings, bushings, and other consumables are always in stock, with nationwide multi-warehouse fast shipping within 48 hours, and online remote video guidance for on-site disassembly and maintenance. On-machine sample testing support: We can send prototypes to customer sites for real-world testing of high-suction water intake, high-flow continuous water supply, and high-temperature medium conveying stability, verify working condition compatibility on site, and purchase in bulk after testing meets standards, avoiding issues such as insufficient suction and downtime losses during selection.
HX horizontal self-priming centrifugal pump + fully automatic pressure stabilizing water supply control cabinet | Municipal clean water supply complete set for residential and factory areas HX explosion-proof self-priming centrifugal pump + chemical reactor cooling water circulation unit | low-corrosive organic solvent and hazardous chemicals workshop clean medium sealed conveying system HX high-flow self-priming centrifugal pump + farmland and garden sprinkler irrigation equipment | large-scale spray water supply supporting device for outdoor ponds and nurseries HX small high-suction self-priming pump + laboratory reactor cooling circulation equipment | scientific research, Pharmaceutical clean water constant temperature circulation conveying system
