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Hennvi HW Non-Clog Self-Priming Sewage Pump combines the structural advantages of the ZX self-priming clean water pump and QW submersible sewage pump, using a double-blade wide-channel anti-blockage impeller to stably transport various types of sewage containing large particle solids and long fiber impurities; The self-priming height is 1 meter higher than conventional pumps, with a flow rate covering 8~800m³/h, head 9~80m, supporting power of 2.2~55kW, standard suitable medium temperature of -20~80°C, and a special custom model with a maximum temperature resistance of 200°C. It is widely suitable for municipal sewage, aquaculture, light industry and chemical industry, paper printing and dyeing, food factories, power plants, and other impurity-containing wastewater conveying scenarios.
Product Details
Double-blade large channel prevents impeller clogging, anti-tangle and prevents cloggingWidened and thickened dual-blade structure, wide and smooth runner channel, greatly improving medium throughput; The maximum diameter allowed for conveying pellets is 60% of the pump diameter, and the fiber length can reach up to 5 times the pump diameter, effectively solving fiber entanglement and solid pellet blockage issues and pump shutdowns, greatly reducing the frequency of cleaning and maintenance.
Optimize hydraulic models for high efficiency and energy savingUses professional simulation to optimize the hydraulic channel, improving overall operating efficiency by 3%~5% compared to ordinary self-priming sewage pumps, suitable for 24-hour continuous sewage discharge in plant areas and municipal areas, and significantly reduces electricity costs during long-term operation.
Exceptional self-priming capability, no foot valve required for manual pumpingExclusive external mixed gas-liquid separation self-priming chamber; under the same conditions, the self-priming height is 1 meter higher than that of a general self-priming pump. After draining the pipeline, a vacuum can be quickly formed; Stable sewage suction for underground sewage tanks and remote ground installation, eliminating the need for foot valves and pre-filling pump supporting steps.
Cemented carbide wear-resistant mechanical seal provides long-lasting soaking in wastewaterStandard with a brand-new cemented carbide friction pair sealing structure, resistant to erosion and corrosion by sediment and impurities in sewage, capable of long-term complete soaking in sewage for continuous operation, low sealing leakage failure rate, and extending the machine's service life.
Horizontal, compact integrated body with small footprint and low noiseThe pump head and motor are coaxically connected with a horizontal base design, resulting in a simple and compact overall structure; Low vibration amplitude during operation, less noise, and can be flexibly arranged and installed for small sewage treatment equipment and compact machine rooms.
Rear-opening quick-release structure, no need to remove pipes during maintenanceThe pump body uses a quick-open maintenance flange design. When maintaining and cleaning impeller tangled debris, there is no need to disassemble the inlet and outlet process pipelines; a single person can open the cover and remove the impeller for cleaning, greatly reducing downtime due to faults.
Compatible with fully automatic liquid level control, unattended operationCan be equipped with an external liquid level control cabinet, automatically controlling pump start and stop based on sewage tank liquid level, eliminating the need for on-site staffing, and compatible with fully automatic integrated sewage treatment stations and aquaculture sewage circulation equipment.
Stable operation, low cavitation, wide range of working conditionsOptimized cavitation allowance design ensures no cavitation or severe vibration occurs throughout the full flow range; Stable operation for high and low liquid level fluctuations and long-distance sewage lifting and conveying, adapting to complex sewage discharge conditions.
Outdoor direct installation requires no construction work, saving on pump room investmentThe entire machine's protection level is adapted to outdoor environments, eliminating the need for a dedicated enclosed pump room and allowing direct outdoor installation, reducing civil and supporting construction costs.
serial number | Part name | Material and function description | Maintenance Features |
1 | Self-priming pump body, liquid storage chamber | Integrated gray-cast iron casting, integrating gas-liquid separation and return channel, with a quick-open flange at the front | Fibers and particle sediment can be completely separated and cleaned without the need to disassemble the pipelines |
2 | Dual-blade anti-jamming impeller | Thickened cast iron wide channel blades, anti-twisting and solid particle impact | Rear-opening structure: open the lid to remove and clean out tangled debris |
3 | Cemented carbide mechanical seals | Cemented carbide dynamic and static friction pairs, sewage-resistant rubber sealing gaskets | Sediment and sewage are wear-resistant and corrosion-resistant; after wear, the seals must be replaced separately |
4 | Corrosion-resistant shaft sleeves and spindles | 45# steel spindle is wrapped in an anti-corrosion shaft sleeve to isolate the spindle from sewage and rust | Protects the spindle from corrosive media and prevents spindle breakage |
5 | Bearing housing and support bearings | Heavy-duty lubricated bearings with built-in heat dissipation structure suitable for long-term continuous sewage discharge | Relying on medium for assisted heat dissipation, suitable for this purpose Operates 24×7 without interruption |
6 | Horizontal shock-absorbing base | Gray cast iron integrated shock-absorbing base, standard universal installation hole position | Drainage pumps of the same model can be directly interchanged without the need to upgrade the equipment foundation |
7 | Elastic coupling | Buffering coupling structure isolates motor vibrations transmitted to the pump head | Vibration reduction and noise reduction to reduce bearing fatigue losses |
8 | Drive motor | 380V three-phase standard motor, customizable for outdoor protection and explosion-proof motors | Power 2.2~55kW full coverage, suitable for indoor, open, and explosion-proof conditions |
Model | Rated flow (m³/h) | Rated lift (m) | Supporting power (kW) | Speed (r/min) | Efficiency (%) | NPSH (m) | Self-priming height (m) | 5 meters self-priming time (min) |
25HW8-15 | 8 | 15 | 2.2 | 2900 | 45 | 2 | 5.5 | 3 |
32HW10-20 | 10 | 20 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 |
32HW20-12 | 20 | 12 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 |
40HW10-20 | 10 | 20 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 |
40HW10-15 | 10 | 15 | 2.2 | 2900 | 48 | 2.5 | 5.5 | 3 |
40HW15-30 | 15 | 30 | 3 | 2900 | 48 | 2.5 | 5.5 | 3 |
50HW10-20 | 12 | 20 | 3 | 2900 | 45 | 2.5 | 5.5 | 3 |
50HW18-22 | 18 | 22 | 2.2 | 2900 | 45 | 2.5 | 5.5 | 3 |
50HW18-30 | 18 | 30 | 3 | 2900 | 48 | 2.5 | 5.5 | 3 |
50HW20-30 | 20 | 30 | 4 | 2900 | 48 | 2.5 | 5.5 | 3 |
65HW30-18 | 30 | 18 | 5.5 | 1450 | 48 | 2.5 | 5.5 | 3 |
65HW20-30 | 25 | 30 | 5.5 | 2900 | 50 | 3 | 5.5 | 2 |
65HW25-40 | 25 | 40 | 7.5 | 2900 | 50 | 3 | 5.5 | 2 |
65HW40-25 | 40 | 25 | 7.5 | 2900 | 50 | 3 | 5.5 | 2 |
65HW65-25 | 65 | 25 | 7.5 | 2900 | 50 | 3 | 5.5 | 2 |
80HW40-16 | 40 | 16 | 4 | 1450 | 48 | 3 | 5.5 | 3 |
80HW40-25 | 40 | 25 | 7.5 | 2900 | 52 | 3 | 5.5 | 2 |
80HW65-25 | 65 | 25 | 11 | 2900 | 45 | 3 | 5.5 | 2 |
80HW80-35 | 80 | 35 | 15 | 2900 | 50 | 3 | 5.5 | 3 |
80HW50-60 | 50 | 60 | 22 | 2900 | 55 | 4 | 5.5 | 3 |
100HW100-15 | 100 | 15 | 7.5 | 1450 | 50 | 4 | 5.5 | 3 |
100HW100-20 | 100 | 20 | 11 | 1450 | 53 | 4 | 5.5 | 3 |
100HW80-25 | 100 | 25 | 15 | 1450 | 53 | 4 | 5.5 | 3 |
100HW80-30 | 100 | 30 | 18.5 | 1450 | 53 | 4 | 5.5 | 3 |
100HW80-45 | 100 | 45 | 30 | 1450 | 53 | 4 | 5.5 | 2 |
100HW80-60 | 100 | 60 | 37 | 1450 | 53 | 4 | 5.5 | 2 |
125HW120-20 | 120 | 20 | 15 | 1450 | 53 | 4.5 | 5.5 | 2 |
150HW200-15 | 200 | 15 | 22 | 1450 | 50 | 5 | 5.5 | 3 |
150HW200-20 | 200 | 20 | 30 | 1450 | 50 | 5 | 5 | 3 |
150HW180-30 | 180 | 30 | 37 | 1450 | 50 | 5 | 5 | 3 |
150HW180-38 | 180 | 38 | 55 | 1450 | 60 | 5 | 5 | 3 |
200HW280-14 | 280 | 14 | 22 | 1450 | 65 | 5 | 5 | 3 |
200HW280-18 | 280 | 18 | 30 | 1450 | 65 | 5 | 5 | 3 |
200HW300-25 | 300 | 25 | 45 | 1450 | 65 | 5 | 5 | 3 |
200HW260-28 | 260 | 28 | 55 | 1450 | 61 | 5 | 4.5 | 2.5 |
250HW420-22 | 420 | 22 | 55 | 1450 | 61 | 6 | 4.5 | 2.5 |
300HW800-14 | 800 | 14 | 55 | 1450 | 65 | 6.5 | 5 | 3 |
The standard design pressure for the entire machine is 1.6MPa, with a suitable temperature range of -20°C~80°C for standard media, and the specially customized high-temperature resistant model has a maximum temperature resistance of 200°C; Self-priming height must not exceed the rated limits of each model; the diameter of the maximum particle diameter passing through the medium must not exceed 60% of the pump inlet diameter, and the fiber length must not exceed 5 times the pump inlet diameter; All models can be optionally equipped with automatic liquid level control cabinets, outdoor protective motors, and explosion-proof motors as needed.
For long-distance lifting and transportation of urban integrated domestic sewage and community underground septic tank sewage, DN100/DN125/DN150/DN200 high-flow models are selected; Ultra-strong self-priming can directly extract sewage from underground septic tanks without the need for a foot valve, and together with a liquid level control cabinet, enables fully automatic unattended sewage discharge.
For water circulation in fish ponds and shrimp ponds, and drainage of wastewater from leftover feed from aquaculture, use DN40/DN50 small to medium flow models; The wide-aisle impeller is less likely to get entangled by fish waste and aquatic plant fibers, allowing outdoor models to be installed directly outdoors, saving on pump room construction costs.
Transporting neutral chemical wastewater, textile wastewater from dyeing fabrics, and pharmaceutical cleaning wastewater. Depending on the corrosiveness of the medium, cast iron complete machines or custom anti-corrosion lining models can be selected; The large passage structure prevents fabric fiber entanglement and pump blockage, while the self-priming structure is adapted for ground-level installation in underground sewage collection tanks.
For the lifting and transportation of pulp wastewater and short fiber pulp wastewater, prioritize large-diameter DN80 and above models; The double-blade wide-channel impeller greatly improves fiber passage capacity, solving the fiber entanglement and sticking problem of ordinary water pumps.
Sewage from slaughter blood and food residue cleaning is conveyed, and the entire machine can be treated with anti-corrosion coatings as needed; The quick-open lid structure facilitates cleaning of meat residues and food fiber impurities, shortening downtime for cleaning.
For open-air drainage from construction site foundation pits and comprehensive production wastewater in the plant, select external protection motor models; The entire machine is installed directly on the ground without the need for a pump room, with stable self-priming performance, suitable for short-term sewage discharge scenarios during temporary construction.
Media Impurity Specification: The diameter of solid particles in the conveyed medium must not exceed 60% of the pump inlet diameter, fiber length must not exceed 5 times the pump inlet diameter, and oversized lumps and overlong fabric strips must be filtered in advance to avoid impeller jamming and motor overload and burnout.
Self-priming height limit: The actual operating self-priming height must not exceed the rated self-priming height indicated on the model. Exceeding the limit will result in weak liquid suction, significant flow rate drop, and frequent cavitation vibration failures.
No idle operation allowed: Before starting, the pump chamber must be filled with sewage medium; dry operation without the medium is strictly prohibited; When the mechanical seal is running idle without medium lubrication and cooling, it will wear and leak in a short time.
Medium temperature classification: Standard cast iron complete machine compatible with 20~80°C room temperature wastewater; When the medium temperature exceeds 80°C to 200°C, custom high-temperature resistant seals and dedicated motors are required.
Explosion-proof requirements: When transporting alcohol, esters, volatile, flammable, and explosive chemical wastewater, the entire machine must be equipped with an explosion-proof three-phase motor. Ordinary motors without explosion-proof protection pose fire and explosion hazards.
Classification of corrosive wastewater: Acidic and alkaline chemical wastewater require custom anti-corrosion lining pump bodies. Ordinary cast iron is transported for long periods and corrosive wastewater will quickly rust, perforate, and leak.
Free professional selection service for working conditions: Based on impurity types in wastewater, fiber length, flow head, medium temperature, and corrosiveness, we match suitable diameters, power, and anti-corrosion/explosion-proof configurations, simultaneously providing flow rate head performance curves and complete machine installation dimension drawings. Non-standard customization services: High-temperature resistant complete machines, anti-corrosion fluorine-lined pump bodies, outdoor protective complete machines, explosion-proof motors, and fully automatic liquid level control cabinets can all be customized. Customized drawings and official quotations will be provided within 7 working days. Original factory complete machine warranty service: drive motor, pump body, and impeller assembly enjoy full machine warranty; Mechanical seals, bushings, bearings, 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, cleaning, and maintenance. On-machine sample testing support: Samples can be sent to customer sites for on-site testing of self-priming height, impurity passage capacity, and continuous sewage discharge stability. After passing the measurement, bulk procurement is conducted to avoid production stoppages caused by pump blockages or insufficient suction during selection.
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