Engineered with anti-clogging hydraulic design and intelligent safety monitoring, delivering high-efficiency, reliable, maintenance-free submersible sewage solutions for media containing solids, long fibers, and complex wastewater.
Precisely deployed for municipal wastewater treatment, industrial effluent discharge, building basement drainage, agricultural irrigation, and special conditions (explosion-proof/low-noise), supporting both fixed and mobile installation modes.
Unlike conventional sewage pumps, the WQ series features a large-passage impeller + dual tungsten carbide mechanical seals + oil-water probe triple protection, achieving superior passage capacity (solids ≤50% of outlet diameter / fibers ≤5× outlet diameter), extended continuous operation (≥8,000 hours), and intelligent protection (auto-shutdown for leakage/electrical fault/overload/over-temperature), setting a new industry benchmark for submersible sewage pumps.
Extended Service Life: Dual-series tungsten carbide mechanical seals + high-strength cast iron pump body resist wear, corrosion & cavitation. Design lifespan ≥12 years—over 40% longer than standard submersible sewage pumps.
Significant Energy Savings: Optimized hydraulic model + high-efficiency motor matching achieve ≥76% efficiency at rated duty. Combined with float switch auto-control to prevent idle running, annual electricity costs drop by 20%–30%.
Lower Maintenance Costs: Dual-rail auto-coupling system + external seal design enables pump lifting & seal replacement without entering sewage pit. One technician completes maintenance within 30 minutes, reducing labor costs by 55%.
Lightweight & Compact Design: Compact motor-pump direct connection + high-strength cast iron housing reduces overall weight by ~15% for equivalent flow ratings, lowering lifting complexity & foundation load requirements.
Faster Installation: Pre-installed coupling base + plug-and-play float switch supports both fixed/mobile installation modes. Standard units reach commissioning readiness within 2 hours from unboxing, compressing installation cycle by 45%.
Municipal Infrastructure: Urban wastewater treatment plants, municipal drainage projects, construction site dewatering, civil air defense drainage stations.
Industrial Effluent: Polluted wastewater discharge from factories/commercial zones, mining exploration drainage, corrosive media transport for chemical/pharmaceutical industries.
Building Utilities: Residential sewage lifting stations, hospital/hotel domestic wastewater discharge, high-rise building basement drainage.
Agricultural Water Conservancy: Rural biogas digester effluent transport, farmland irrigation drainage, waterworks water supply devices.
Special Conditions: Media containing solids/long fibers, explosion-proof configuration for flammable/explosive environments, low-speed models for low-noise requirements.
Media Compatibility: Clean water or non-corrosive liquids with similar physicochemical properties. Temperature ≤60℃/140℉, density 1.0–1.3 kg/dm³, pH 5–9.
 | 1 | Signal Cable | 12 | Oil Chamber |
| 2 | Motor Wiring | 13 | Mechanical Seal | |
| 3 | Terminal Box | 14 | Rear Cover Plate | |
| 4 | Motor End Cover | 15 | Pump Casing | |
| 5 | Bearing | 16 | Impeller Bolt | |
| 6 | Upper Bearing Housing | 17 | Impeller | |
| 7 | Motor Frame | 18 | Wear Ring | |
| 8 | Stator | 19 | Base Plate | |
| 9 | Rotor Shaft | / | / | |
| 10 | Bearing | / | / | |
| 11 | Oil-Water Sensor | / | / |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 1 | 25WQ8-12-0.75 | 25 | 8 | 12 | 2900 | 0.75 | 45 | GAK-25 | 8-12 |
| 2 | 25WQ8-22-1.1 | 25 | 8 | 22 | 2900 | 1.1 | 48 | GAK-25 | 12-22 |
| 3 | 25WQ8-25-1.5 | 25 | 8 | 25 | 2900 | 1.5 | 46 | GAK-25 | 22-25 |
| 4 | 32WQ8-12-0.75 | 32 | 8 | 12 | 2900 | 0.75 | 48 | GAK-32 | 8-12 |
| 5 | 32WQ5-15-0.75 | 32 | 5 | 15 | 2900 | 0.75 | 47 | GAK-32 | 12-15 |
| 6 | 32WQ12-15-1.1 | 32 | 12 | 15 | 2900 | 1.1 | 40 | GAK-32 | 10-15 |
| 7 | 40WQ8-15-1.1 | 40 | 8 | 15 | 2900 | 1.1 | 48 | GAK-40 | 8-15 |
| 8 | 40WQ12-15-1.5 | 40 | 12 | 15 | 2900 | 1.5 | 54 | GAK-40 | 8-15 |
| 9 | 40WQ15-15-1.5 | 40 | 15 | 15 | 2900 | 1.5 | 45 | GAK-40 | 10-15 |
| 10 | 40WQ15-30-2.2 | 40 | 15 | 30 | 2900 | 2.2 | 48 | GAK-40 | 20-30 |
| 11 | 50WQ20-7-0.75 | 50 | 20 | 7 | 2900 | 0.75 | 54 | GAK-50 | 5-7 |
| 12 | 50WQ15-8-0.75 | 50 | 15 | 8 | 2900 | 0.75 | 50 | GAK-50 | 6-8 |
| 13 | 50WQ10-10-0.75 | 50 | 10 | 10 | 2900 | 0.75 | 56 | GAK-50 | 6-10 |
| 14 | 50WQ20-9-1.1 | 50 | 20 | 9 | 2900 | 1.1 | 51.5 | GAK-50 | 5-9 |
| 15 | 50WQ15-12-1.1 | 50 | 15 | 12 | 2900 | 1.1 | 52 | GAK-50 | 8-12 |
| 16 | 50WQ10-15-1.1 | 50 | 10 | 15 | 2900 | 1.1 | 50 | GAK-50 | 10-15 |
| 17 | 50WQ7-20-1.1 | 50 | 7 | 20 | 2900 | 1.1 | 49.5 | GAK-50 | 15-20 |
| 18 | 50WQ25-10-1.5 | 50 | 25 | 10 | 2900 | 1.5 | 56 | GAK-50 | 6-10 |
| 19 | 50WQ20-15-1.5 | 50 | 20 | 15 | 2900 | 1.5 | 55 | GAK-50 | 10-15 |
| 20 | 50WQ10-20-1.5 | 50 | 10 | 20 | 2900 | 1.5 | 50 | GAK-50 | 15-20 |
| 21 | 50WQ9-22-1.5 | 50 | 9 | 22 | 2900 | 1.5 | 49.5 | GAK-50 | 18-22 |
| 22 | 50WQ42-9-2.2 | 50 | 42 | 9 | 2900 | 2.2 | 49 | GAK-50 | 5-9 |
| 23 | 50WQ30-10-2.2 | 50 | 30 | 10 | 2900 | 2.2 | 50 | GAK-50 | 6-10 |
| 24 | 50WQ27-15-2.2 | 50 | 27 | 15 | 2900 | 2.2 | 62 | GAK-50 | 10-15 |
| 25 | 50WQ15-25-2.2 | 50 | 15 | 25 | 2900 | 2.2 | 56 | GAK-50 | 18-25 |
| 26 | 50WQ17-25-3 | 50 | 17 | 25 | 2900 | 3 | 52 | GAK-50 | 18-25 |
| 27 | 50WQ18-30-3 | 50 | 18 | 30 | 2900 | 3 | 58 | GAK-50 | 20-30 |
| 28 | 50WQ40-15-4 | 50 | 40 | 15 | 2900 | 4 | 60 | GAK-50 | 10-15 |
| 29 | 50WQ24-20-4 | 50 | 24 | 20 | 2900 | 4 | 60 | GAK-50 | 15-20 |
| 30 | 50WQ25-25-4 | 50 | 25 | 25 | 2900 | 4 | 48 | GAK-50 | 18-25 |
| 31 | 50WQ15-32-4 | 50 | 15 | 32 | 2900 | 4 | 50 | GAK-50 | 25-32 |
| 32 | 50WQ25-32-5.5 | 50 | 25 | 32 | 2900 | 5.5 | 53 | GAK-50 | 25-32 |
| 33 | 50WQ30-30-7.5 | 50 | 30 | 30 | 2900 | 7.5 | 56 | GAK-50 | 20-30 |
| 34 | 50WQ25-36-7.5 | 50 | 25 | 36 | 2900 | 7.5 | 55 | GAK-50 | 30-36 |
| 35 | 50WQ20-40-7.5 | 50 | 20 | 40 | 2900 | 7.5 | 55 | GAK-50 | 35-40 |
| 36 | 50WQ15-50-7.5 | 50 | 15 | 50 | 2900 | 7.5 | 53 | GAK-50 | 40-50 |
| 37 | 65WQ42-9-2.2 | 65 | 42 | 9 | 2900 | 2.2 | 56 | GAK-65 | 5-9 |
| 38 | 65WQ30-10-2.2 | 65 | 30 | 10 | 2900 | 2.2 | 63 | GAK-65 | 6-10 |
| 39 | 65WQ25-15-2.2 | 65 | 25 | 15 | 2900 | 2.2 | 52 | GAK-65 | 10-15 |
| 40 | 65WQ15-18-2.2 | 65 | 15 | 18 | 2900 | 2.2 | 64 | GAK-65 | 12-18 |
| 41 | 65WQ10-20-2.2 | 65 | 10 | 20 | 2900 | 2.2 | 64 | GAK-65 | 15-20 |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 42 | 65WQ37-13-3 | 65 | 37 | 13 | 2900 | 3 | 57 | GAK-65 | 8-13 |
| 43 | 65WQ30-15-3 | 65 | 30 | 15 | 2900 | 3 | 56 | GAK-65 | 10-15 |
| 44 | 65WQ10-30-3 | 65 | 10 | 30 | 2900 | 3 | 40 | GAK-65 | 20-30 |
| 45 | 65WQ30-22-4 | 65 | 30 | 22 | 2900 | 4 | 58 | GAK-65 | 18-22 |
| 46 | 65WQ25-30-4 | 65 | 25 | 30 | 2900 | 4 | 61 | GAK-65 | 20-30 |
| 47 | 65WQ15-30-4 | 65 | 15 | 30 | 2900 | 4 | 56 | GAK-65 | 25-30 |
| 48 | 65WQ50-9-5.5 | 65 | 50 | 9 | 2900 | 5.5 | 61 | GAK-65 | 5-9 |
| 49 | 65WQ45-13-5.5 | 65 | 45 | 13 | 2900 | 5.5 | 60 | GAK-65 | 8-13 |
| 50 | 65WQ40-17-5.5 | 65 | 40 | 17 | 2900 | 5.5 | 60 | GAK-65 | 13-17 |
| 51 | 65WQ35-20-5.5 | 65 | 35 | 20 | 2900 | 5.5 | 59 | GAK-65 | 15-20 |
| 52 | 65WQ30-30-5.5 | 65 | 30 | 30 | 2900 | 5.5 | 60 | GAK-65 | 20-30 |
| 53 | 65WQ25-33-5.5 | 65 | 25 | 33 | 2900 | 5.5 | 56 | GAK-65 | 25-33 |
| 54 | 65WQ20-36-5.5 | 65 | 20 | 36 | 2900 | 5.5 | 55 | GAK-65 | 30-36 |
| 55 | 65WQ15-38-5.5 | 65 | 15 | 38 | 2900 | 5.5 | 55 | GAK-65 | 32-38 |
| 56 | 65WQ50-17-7.5 | 65 | 50 | 17 | 2900 | 7.5 | 58 | GAK-65 | 12-17 |
| 57 | 65WQ45-20-7.5 | 65 | 45 | 20 | 2900 | 7.5 | 58 | GAK-65 | 15-20 |
| 58 | 65WQ40-30-7.5 | 65 | 40 | 30 | 2900 | 7.5 | 58 | GAK-65 | 20-30 |
| 59 | 65WQ30-40-7.5 | 65 | 30 | 40 | 2900 | 7.5 | 56 | GAK-65 | 30-40 |
| 60 | 65WQ35-50-11 | 65 | 35 | 50 | 2900 | 11 | 60 | GAK-65 | 40-50 |
| 61 | 65WQ35-60-15 | 65 | 35 | 60 | 2900 | 15 | 63 | GAK-65 | 50-60 |
| 62 | 80WQ40-7-2.2 | 80 | 40 | 7 | 1450 | 2.2 | 52 | GAK-80 | 5-7 |
| 63 | 80WQ30-8-2.2 | 80 | 30 | 8 | 1450 | 2.2 | 45 | GAK-80 | 5-8 |
| 64 | 80WQ50-8-2.2 | 80 | 50 | 8 | 1450 | 2.2 | 60 | GAK-80 | 5-8 |
| 65 | 80WQ50-7-3 | 80 | 50 | 7 | 2900 | 3 | 71 | GAK-80 | 5-7 |
| 66 | 80WQ50-10-3 | 80 | 50 | 10 | 2900 | 3 | 58 | GAK-80 | 6-10 |
| 67 | 80WQ43-13-3 | 80 | 43 | 13 | 2900 | 3 | 50 | GAK-80 | 8-13 |
| 68 | 80WQ60-13-4 | 80 | 60 | 13 | 2900 | 4 | 65 | GAK-80 | 8-13 |
| 69 | 80WQ40-15-4 | 80 | 40 | 15 | 2900 | 4 | 57 | GAK-80 | 10-15 |
| 70 | 80WQ50-15-4 | 80 | 50 | 15 | 2900 | 4 | 55 | GAK-80 | 10-15 |
| 71 | 80WQ25-25-4 | 80 | 25 | 25 | 2900 | 4 | 58 | GAK-80 | 18-25 |
| 72 | 80WQ20-28-4 | 80 | 20 | 28 | 2900 | 4 | 56 | GAK-80 | 20-28 |
| 73 | 80WQ50-20-5.5 | 80 | 50 | 20 | 2900 | 5.5 | 67 | GAK-80 | 15-20 |
| 74 | 80WQ45-22-5.5 | 80 | 45 | 22 | 2900 | 5.5 | 65 | GAK-80 | 18-22 |
| 75 | 80WQ30-30-5.5 | 80 | 30 | 30 | 2900 | 5.5 | 56 | GAK-80 | 20-30 |
| 76 | 80WQ25-32-5.5 | 80 | 25 | 32 | 2900 | 5.5 | 56 | GAK-80 | 25-32 |
| 77 | 80WQ80-15-7.5 | 80 | 80 | 15 | 2900 | 7.5 | 64 | GAK-80 | 10-15 |
| 78 | 80WQ65-25-7.5 | 80 | 65 | 25 | 2900 | 7.5 | 56 | GAK-80 | 18-25 |
| 79 | 80WQ35-28-7.5 | 80 | 35 | 28 | 2900 | 7.5 | 57 | GAK-80 | 20-28 |
| 80 | 80WQ30-32-7.5 | 80 | 30 | 32 | 2900 | 7.5 | 60 | GAK-80 | 25-32 |
| 81 | 80WQ50-35-11 | 80 | 50 | 35 | 2900 | 11 | 56 | GAK-80 | 25-35 |
| 82 | 80WQ30-40-11 | 80 | 30 | 40 | 2900 | 11 | 58 | GAK-80 | 30-40 |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 83 | 80WQ50-40-15 | 80 | 50 | 40 | 2900 | 15 | 60.5 | GAK-80 | 30-40 |
| 84 | 100WQ70-7-3 | 100 | 70 | 7 | 1450 | 3 | 74 | GAK-100 | 5-7 |
| 85 | 100WQ80-7-3 | 100 | 80 | 7 | 1450 | 3 | 70 | GAK-100 | 5-7 |
| 86 | 100WQ80-9-4 | 100 | 80 | 9 | 1450 | 4 | 69 | GAK-100 | 6-9 |
| 87 | 100WQ100-7-4 | 100 | 100 | 7 | 1450 | 4 | 72.5 | GAK-100 | 5-7 |
| 88 | 100WQ80-10-4 | 100 | 80 | 10 | 1450 | 4 | 62 | GAK-100 | 6-10 |
| 89 | 100WQ60-15-4 | 100 | 60 | 15 | 1450 | 4 | 69 | GAK-100 | 10-15 |
| 90 | 100WQ110-10-5.5 | 100 | 110 | 10 | 1450 | 5.5 | 67 | GAK-100 | 6-10 |
| 91 | 100WQ80-13-5.5 | 100 | 80 | 13 | 1450 | 5.5 | 60 | GAK-100 | 8-13 |
| 92 | 100WQ65-15-5.5 | 100 | 65 | 15 | 1450 | 5.5 | 59 | GAK-100 | 10-15 |
| 93 | 100WQ50-17-5.5 | 100 | 50 | 17 | 1450 | 5.5 | 57 | GAK-100 | 12-17 |
| 94 | 100WQ60-20-5.5 | 100 | 60 | 20 | 1450 | 5.5 | 65 | GAK-100 | 15-20 |
| 95 | 100WQ100-15-7.5 | 100 | 100 | 15 | 1450 | 7.5 | 67 | GAK-100 | 10-15 |
| 96 | 100WQ85-20-7.5 | 100 | 85 | 20 | 1450 | 7.5 | 68 | GAK-100 | 15-20 |
| 97 | 100WQ50-22-7.5 | 100 | 50 | 22 | 1450 | 7.5 | 63 | GAK-100 | 18-22 |
| 98 | 100WQ70-22-7.5 | 100 | 70 | 22 | 1450 | 7.5 | 59 | GAK-100 | 8-11 |
| 99 | 100WQ100-25-11 | 100 | 100 | 25 | 1450 | 11 | 65 | GAK-100 | 18-25 |
| 100 | 100WQ50-35-11 | 100 | 50 | 35 | 1450 | 11 | 67 | GAK-100 | 25-35 |
| 101 | 100WQ45-40-11 | 100 | 45 | 40 | 1450 | 11 | 70 | GAK-100 | 30-40 |
| 102 | 100WQ100-22-15 | 100 | 100 | 22 | 1450 | 15 | 61 | GAK-100 | 18-22 |
| 103 | 100WQ95-25-15 | 100 | 95 | 25 | 1450 | 15 | 62 | GAK-100 | 18-25 |
| 104 | 100WQ87-28-15 | 100 | 87 | 28 | 1450 | 15 | 62 | GAK-100 | 20-28 |
| 105 | 100WQ100-30-15 | 100 | 100 | 30 | 1450 | 15 | 66 | GAK-100 | 20-30 |
| 106 | 100WQ80-32-15 | 100 | 80 | 32 | 1450 | 15 | 68 | GAK-100 | 25-32 |
| 107 | 100WQ100-35-18.5 | 100 | 100 | 35 | 1450 | 18.5 | 65 | GAK-100 | 28-35 |
| 108 | 100WQ80-36-18.5 | 100 | 80 | 36 | 1450 | 18.5 | 73 | GAK-100 | 30-36 |
| 109 | 100WQ70-40-18.5 | 100 | 70 | 40 | 1450 | 18.5 | 73 | GAK-100 | 35-40 |
| 110 | 100WQ80-40-22 | 100 | 80 | 40 | 1450 | 22 | 60 | GAK-100 | 35-40 |
| 111 | 125WQ130-15-11 | 125 | 130 | 15 | 1450 | 11 | 62 | GAK-125 | 10-15 |
| 112 | 125WQ130-20-15 | 125 | 130 | 20 | 1450 | 15 | 63 | GAK-125 | 15-20 |
| 113 | 150WQ140-7-5.5 | 150 | 140 | 7 | 1450 | 5.5 | 72 | GAK-150 | 5-7 |
| 114 | 150WQ150-7-5.5 | 150 | 150 | 7 | 1450 | 5.5 | 73 | GAK-150 | 5-7 |
| 115 | 150WQ120-10-5.5 | 150 | 120 | 10 | 1450 | 5.5 | 70 | GAK-150 | 6-10 |
| 116 | 150WQ250-6-7.5 | 150 | 250 | 6 | 1450 | 7.5 | 82 | GAK-150 | 4-6 |
| 117 | 150WQ210-7-7.5 | 150 | 210 | 7 | 1450 | 7.5 | 75 | GAK-150 | 5-7 |
| 118 | 150WQ145-9-7.5 | 150 | 145 | 9 | 1450 | 7.5 | 63 | GAK-150 | 6-9 |
| 119 | 150WQ150-10-7.5 | 150 | 150 | 10 | 1450 | 7.5 | 70 | GAK-150 | 6-10 |
| 120 | 150WQ110-15-7.5 | 150 | 110 | 15 | 1450 | 7.5 | 71 | GAK-150 | 10-15 |
| 121 | 150WQ150-15-11 | 150 | 150 | 15 | 1450 | 11 | 80 | GAK-150 | 10-15 |
| 122 | 150WQ200-10-15 | 150 | 200 | 10 | 1450 | 15 | 73 | GAK-150 | 6-10 |
| 123 | 150WQ180-15-15 | 150 | 180 | 15 | 1450 | 15 | 65 | GAK-150 | 10-15 |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 124 | 150WQ140-18-15 | 150 | 140 | 18 | 1450 | 15 | 65 | GAK-150 | 12-18 |
| 125 | 150WQ150-20-15 | 150 | 150 | 20 | 1450 | 15 | 70 | GAK-150 | 15-20 |
| 126 | 150WQ100-30-15 | 150 | 100 | 30 | 1450 | 15 | 70 | GAK-150 | 20-30 |
| 127 | 150WQ200-14-18.5 | 150 | 200 | 14 | 1450 | 18.5 | 68 | GAK-150 | 10-14 |
| 128 | 150WQ180-20-18.5 | 150 | 180 | 20 | 1450 | 18.5 | 75 | GAK-150 | 15-20 |
| 129 | 150WQ180-22-18.5 | 150 | 180 | 22 | 1450 | 18.5 | 76 | GAK-150 | 18-22 |
| 130 | 150WQ150-25-18.5 | 150 | 150 | 25 | 1450 | 18.5 | 68 | GAK-150 | 18-25 |
| 131 | 150WQ150-26-18.5 | 150 | 150 | 26 | 1450 | 18.5 | 70 | GAK-150 | 20-26 |
| 132 | 150WQ110-30-18.5 | 150 | 110 | 30 | 1450 | 18.5 | 72 | GAK-150 | 20-30 |
| 133 | 150WQ100-35-18.5 | 150 | 100 | 35 | 1450 | 18.5 | 73 | GAK-150 | 28-35 |
| 134 | 150WQ70-40-18.5 | 150 | 70 | 40 | 1450 | 18.5 | 66 | GAK-150 | 30-40 |
| 135 | 150WQ200-22-22 | 150 | 200 | 22 | 1450 | 22 | 73 | GAK-150 | 18-22 |
| 136 | 150WQ180-25-22 | 150 | 180 | 25 | 1450 | 22 | 76 | GAK-150 | 18-25 |
| 137 | 150WQ130-30-22 | 150 | 130 | 30 | 1450 | 22 | 75 | GAK-150 | 20-30 |
| 138 | 150WQ150-30-22 | 150 | 150 | 30 | 1450 | 22 | 67 | GAK-150 | 20-30 |
| 139 | 150WQ250-22-30 | 150 | 250 | 22 | 1450 | 30 | 73 | GAK-150 | 18-22 |
| 140 | 150WQ200-25-30 | 150 | 200 | 25 | 1450 | 30 | 76 | GAK-150 | 18-25 |
| 141 | 150WQ180-30-30 | 150 | 180 | 30 | 1450 | 30 | 73 | GAK-150 | 20-30 |
| 142 | 150WQ150-40-30 | 150 | 150 | 40 | 1450 | 30 | 70 | GAK-150 | 30-40 |
| 143 | 150WQ200-30-37 | 150 | 200 | 30 | 1450 | 37 | 70 | GAK-150 | 20-30 |
| 144 | 150WQ150-35-37 | 150 | 150 | 35 | 1450 | 37 | 73 | GAK-150 | 25-35 |
| 145 | 150WQ160-45-37 | 150 | 160 | 45 | 1450 | 37 | 65 | GAK-150 | 32-45 |
| 146 | 150WQ180-40-45 | 150 | 180 | 40 | 1450 | 45 | 71 | GAK-150 | 30-40 |
| 147 | 150WQ150-50-45 | 150 | 150 | 50 | 1450 | 45 | 62 | GAK-150 | 40-50 |
| 148 | 150WQ150-56-55 | 150 | 150 | 56 | 1450 | 55 | 60 | GAK-150 | 50-56 |
| 149 | 200WQ360-6-11 | 200 | 360 | 6 | 980 | 11 | 72 | GAK-200 | 4-6 |
| 150 | 200WQ300-7-11 | 200 | 300 | 7 | 980 | 11 | 73 | GAK-200 | 5-7 |
| 151 | 200WQ400-7-15 | 200 | 400 | 7 | 980 | 15 | 78 | GAK-200 | 5-7 |
| 152 | 200WQ300-10-15 | 200 | 300 | 10 | 980 | 15 | 76 | GAK-200 | 6-10 |
| 153 | 200WQ250-11-15 | 200 | 250 | 11 | 980 | 15 | 72 | GAK-200 | 7-11 |
| 154 | 200WQ300-10-18.5 | 200 | 300 | 10 | 1450 | 18.5 | 72 | GAK-200 | 7-10 |
| 155 | 200WQ300-13-18.5 | 200 | 300 | 13 | 1450 | 18.5 | 68 | GAK-200 | 8-13 |
| 156 | 200WQ250-15-18.5 | 200 | 250 | 15 | 1450 | 18.5 | 72 | GAK-200 | 10-15 |
| 157 | 200WQ400-10-22 | 200 | 400 | 10 | 1450 | 22 | 75 | GAK-200 | 6-10 |
| 158 | 200WQ310-13-22 | 200 | 310 | 13 | 1450 | 22 | 62 | GAK-200 | 8-13 |
| 159 | 200WQ300-15-22 | 200 | 300 | 15 | 1450 | 22 | 73 | GAK-200 | 10-15 |
| 160 | 200WQ400-13-30 | 200 | 400 | 13 | 1450 | 30 | 73 | GAK-200 | 8-13 |
| 161 | 200WQ360-15-30 | 200 | 360 | 15 | 1450 | 30 | 75 | GAK-200 | 10-15 |
| 162 | 200WQ300-18-30 | 200 | 300 | 18 | 1450 | 30 | 85 | GAK-200 | 13-18 |
| 163 | 200WQ300-20-30 | 200 | 300 | 20 | 1450 | 30 | 67 | GAK-200 | 15-20 |
| 164 | 200WQ250-22-30 | 200 | 250 | 22 | 1450 | 30 | 71 | GAK-200 | 18-22 |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 165 | 200WQ350-25-37 | 200 | 350 | 25 | 1450 | 37 | 75 | GAK-200 | 18-25 |
| 166 | 200WQ400-20-45 | 200 | 400 | 20 | 1450 | 45 | 74 | GAK-200 | 15-20 |
| 167 | 200WQ400-25-45 | 200 | 400 | 25 | 1450 | 45 | 75 | GAK-200 | 18-25 |
| 168 | 200WQ380-28-45 | 200 | 380 | 28 | 1450 | 45 | 70 | GAK-200 | 20-28 |
| 169 | 200WQ250-35-45 | 200 | 250 | 35 | 1450 | 45 | 69 | GAK-200 | 25-35 |
| 170 | 200WQ200-37-45 | 200 | 200 | 37 | 1450 | 45 | 67 | GAK-200 | 30-37 |
| 171 | 200WQ400-30-55 | 200 | 400 | 30 | 1450 | 55 | 70 | GAK-200 | 20-30 |
| 172 | 200WQ400-34-55 | 200 | 400 | 34 | 1450 | 55 | 74 | GAK-200 | 28-34 |
| 173 | 200WQ300-35-55 | 200 | 300 | 35 | 1450 | 55 | 63 | GAK-200 | 28-35 |
| 174 | 200WQ250-40-55 | 200 | 250 | 40 | 1450 | 55 | 69 | GAK-200 | 30-40 |
| 175 | 200WQ350-40-75 | 200 | 350 | 40 | 1450 | 75 | 68 | GAK-200 | 30-40 |
| 176 | 200WQ400-40-75 | 200 | 400 | 40 | 1450 | 75 | 70.5 | GAK-200 | 30-40 |
| 177 | 200WQ350-50-75 | 200 | 350 | 50 | 1450 | 75 | 72 | GAK-200 | 40-50 |
| 178 | 200WQ200-60-75 | 200 | 200 | 60 | 1450 | 75 | 52 | GAK-200 | 50-60 |
| 179 | 200WQ400-48-90 | 200 | 400 | 48 | 1450 | 90 | 70.5 | GAK-200 | 40-48 |
| 180 | 250WQ400-7-15 | 250 | 400 | 7 | 1450 | 15 | 69 | GAK-250 | 5-7 |
| 181 | 250WQ400-10-18.5 | 250 | 400 | 10 | 1450 | 18.5 | 75 | GAK-250 | 6-10 |
| 182 | 250WQ600-7-22 | 250 | 600 | 7 | 1450 | 22 | 66 | GAK-250 | 5-7 |
| 183 | 250WQ400-13-22 | 250 | 400 | 13 | 1450 | 22 | 73 | GAK-250 | 8-13 |
| 184 | 250WQ250-17-22 | 250 | 250 | 17 | 1450 | 22 | 56 | GAK-250 | 10-17 |
| 185 | 250WQ600-9-30 | 250 | 600 | 9 | 980 | 30 | 74 | GAK-250 | 5-9 |
| 186 | 250WQ500-10-30 | 250 | 500 | 10 | 980 | 30 | 72 | GAK-250 | 6-10 |
| 187 | 250WQ700-11-37 | 250 | 700 | 11 | 980 | 37 | 73 | GAK-250 | 7-11 |
| 188 | 250WQ600-12-37 | 250 | 600 | 12 | 1450 | 37 | 78 | GAK-250 | 7-12 |
| 189 | 250WQ500-16-37 | 250 | 500 | 16 | 1450 | 37 | 72 | GAK-250 | 10-16 |
| 190 | 250WQ600-15-45 | 250 | 600 | 15 | 1450 | 45 | 75 | GAK-250 | 10-15 |
| 191 | 250WQ500-20-45 | 250 | 500 | 20 | 1450 | 45 | 72 | GAK-250 | 15-20 |
| 192 | 250WQ420-22-45 | 250 | 420 | 22 | 1450 | 45 | 70 | GAK-250 | 15-22 |
| 193 | 250WQ600-20-55 | 250 | 600 | 20 | 1450 | 55 | 73 | GAK-250 | 15-20 |
| 194 | 250WQ500-25-55 | 250 | 500 | 25 | 1450 | 55 | 74 | GAK-250 | 18-25 |
| 195 | 250WQ700-22-75 | 250 | 700 | 22 | 1450 | 75 | 66 | GAK-250 | 16-22 |
| 196 | 250WQ600-25-75 | 250 | 600 | 25 | 1450 | 75 | 73 | GAK-250 | 20-25 |
| 197 | 250WQ600-30-90 | 250 | 600 | 30 | 1450 | 90 | 73 | GAK-250 | 25-30 |
| 198 | 250WQ700-30-110 | 250 | 700 | 30 | 1450 | 110 | 67 | GAK-250 | 20-30 |
| 199 | 250WQ600-40-110 | 250 | 600 | 40 | 1450 | 110 | 70 | GAK-250 | 30-40 |
| 200 | 250WQ1000-30-132 | 250 | 1000 | 30 | 1450 | 132 | 66 | GAK-250 | 20-30 |
| 201 | 250WQ600-50-132 | 250 | 600 | 50 | 1450 | 132 | 70 | GAK-250 | 40-50 |
| 202 | 300WQ600-6-18.5 | 300 | 600 | 6 | 980 | 18.5 | 65 | GAK-300 | 4-6 |
| 203 | 300WQ600-7-22 | 300 | 600 | 7 | 980 | 22 | 65 | GAK-300 | 5-7 |
| 204 | 300WQ900-8-30 | 300 | 900 | 8 | 980 | 30 | 81 | GAK-300 | 5-8 |
| 205 | 300WQ700-11-30 | 300 | 700 | 11 | 980 | 30 | 78 | GAK-300 | 7-11 |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 206 | 300WQ900-8-37 | 300 | 900 | 8 | 980 | 37 | 69 | GAK-300 | 5-8 |
| 207 | 300WQ700-14-37 | 300 | 700 | 14 | 980 | 37 | 78 | GAK-300 | 9-14 |
| 208 | 300WQ800-12-45 | 300 | 800 | 12 | 980 | 45 | 76 | GAK-300 | 7-12 |
| 209 | 300WQ700-16-45 | 300 | 700 | 16 | 980 | 45 | 78 | GAK-300 | 10-16 |
| 210 | 300WQ400-20-45 | 300 | 400 | 20 | 980 | 45 | 66 | GAK-300 | 15-20 |
| 211 | 300WQ900-12-55 | 300 | 900 | 12 | 980 | 55 | 70 | GAK-300 | 7-12 |
| 212 | 300WQ800-15-55 | 300 | 800 | 15 | 980 | 55 | 73 | GAK-300 | 10-15 |
| 213 | 300WQ700-19-55 | 300 | 700 | 19 | 980 | 55 | 75 | GAK-300 | 14-19 |
| 214 | 300WQ600-20-55 | 300 | 600 | 20 | 980 | 55 | 75 | GAK-300 | 15-20 |
| 215 | 300WQ1000-20-75 | 300 | 1000 | 20 | 980 | 75 | 82 | GAK-300 | 15-20 |
| 216 | 300WQ1000-24-90 | 300 | 1000 | 24 | 980 | 90 | 82 | GAK-300 | 18-24 |
| 217 | 300WQ1000-25-110 | 300 | 1000 | 25 | 980 | 110 | 82 | GAK-300 | 20-25 |
| 218 | 300WQ800-32-110 | 300 | 800 | 32 | 1450 | 110 | 76 | GAK-300 | 25-32 |
| 219 | 300WQ1000-35-132 | 300 | 1000 | 35 | 1450 | 132 | 80 | GAK-300 | 28-35 |
| 220 | 300WQ800-36-132 | 300 | 800 | 36 | 1450 | 132 | 76 | GAK-300 | 28-36 |
| 221 | 350WQ1200-6-30 | 350 | 1200 | 6 | 980 | 30 | 72 | GAK-350 | 4-6 |
| 222 | 350WQ1200-8-37 | 350 | 1200 | 8 | 980 | 37 | 75 | GAK-350 | 5-8 |
| 223 | 350WQ1500-7-45 | 350 | 1500 | 7 | 980 | 45 | 87 | GAK-350 | 5-7 |
| 224 | 350WQ1200-8-45 | 350 | 1200 | 8 | 980 | 45 | 84 | GAK-350 | 5-8 |
| 225 | 350WQ1100-10-45 | 350 | 1100 | 10 | 980 | 45 | 70 | GAK-350 | 7-10 |
| 226 | 350WQ1100-12-55 | 350 | 1100 | 12 | 980 | 55 | 71 | GAK-350 | 8-12 |
| 227 | 350WQ1300-12-75 | 350 | 1300 | 12 | 980 | 75 | 83 | GAK-350 | 8-12 |
| 228 | 350WQ1180-13-75 | 350 | 1180 | 13 | 980 | 75 | 84 | GAK-350 | 9-13 |
| 229 | 350WQ1100-16-75 | 350 | 1100 | 16 | 980 | 75 | 75 | GAK-350 | 11-16 |
| 230 | 350WQ1500-15-90 | 350 | 1500 | 15 | 980 | 90 | 82.5 | GAK-350 | 10-15 |
| 231 | 350WQ1300-16-90 | 350 | 1300 | 16 | 980 | 90 | 80 | GAK-350 | 11-16 |
| 232 | 350WQ1200-18-90 | 350 | 1200 | 18 | 980 | 90 | 83 | GAK-350 | 13-18 |
| 233 | 350WQ1100-20-90 | 350 | 1100 | 20 | 980 | 90 | 84 | GAK-350 | 15-20 |
| 234 | 350WQ1250-20-110 | 350 | 1250 | 20 | 980 | 110 | 83 | GAK-350 | 15-20 |
| 235 | 350WQ1100-25-110 | 350 | 1100 | 25 | 980 | 110 | 76 | GAK-350 | 20-25 |
| 236 | 350WQ1500-20-132 | 350 | 1500 | 20 | 980 | 132 | 82 | GAK-350 | 15-20 |
| 237 | 350WQ1100-30-132 | 350 | 1100 | 30 | 980 | 132 | 75 | GAK-350 | 25-30 |
| 238 | 350WQ900-32-132 | 350 | 900 | 32 | 980 | 132 | 75 | GAK-350 | 25-32 |
| 239 | 350WQ1500-26-160 | 350 | 1500 | 26 | 980 | 160 | 83 | GAK-350 | 20-26 |
| 240 | 350WQ1100-36-160 | 350 | 1100 | 36 | 980 | 160 | 78.5 | GAK-350 | 30-36 |
| 241 | 350WQ1500-30-185 | 350 | 1500 | 30 | 980 | 185 | 80 | GAK-350 | 25-30 |
| 242 | 350WQ1500-32-200 | 350 | 1500 | 32 | 980 | 200 | 80 | GAK-350 | 25-32 |
| 243 | 350WQ1500-35-220 | 350 | 1500 | 35 | 980 | 220 | 80 | GAK-350 | 28-35 |
| 244 | 350WQ1500-40-250 | 350 | 1500 | 40 | 980 | 250 | 80 | GAK-350 | 32-40 |
| 245 | 350WQ1800-40-280 | 350 | 1800 | 40 | 980 | 280 | 80 | GAK-350 | 32-40 |
| 246 | 350WQ1800-43-315 | 350 | 1800 | 43 | 980 | 315 | 80 | GAK-350 | 35-43 |
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 247 | 350WQ1800-46-355 | 350 | 1800 | 46 | 980 | 355 | 80 | GAK-350 | 40-46 |
| 248 | 400WQ1500-5-30 | 400 | 1500 | 5 | 740 | 30 | 72 | GAK-400 | 3-5 |
| 249 | 400WQ1500-6-37 | 400 | 1500 | 6 | 740 | 37 | 72 | GAK-400 | 4-6 |
| 250 | 400WQ1500-8-45 | 400 | 1500 | 8 | 740 | 45 | 80 | GAK-400 | 5-8 |
| 251 | 400WQ2000-6-55 | 400 | 2000 | 6 | 740 | 55 | 86 | GAK-400 | 4-6 |
| 252 | 400WQ1800-7-55 | 400 | 1800 | 7 | 740 | 55 | 85 | GAK-400 | 5-7 |
| 253 | 400WQ1500-10-55 | 400 | 1500 | 10 | 740 | 55 | 82 | GAK-400 | 7-10 |
| 254 | 400WQ2600-6-75 | 400 | 2600 | 6 | 740 | 75 | 78 | GAK-400 | 4-6 |
| 255 | 400WQ2500-7-75 | 400 | 2500 | 7 | 740 | 75 | 85 | GAK-400 | 5-7 |
| 256 | 400WQ1800-10-75 | 400 | 1800 | 10 | 740 | 75 | 85 | GAK-400 | 7-10 |
| 257 | 400WQ1500-12-75 | 400 | 1500 | 12 | 740 | 75 | 78 | GAK-400 | 8-12 |
| 258 | 400WQ2000-10-90 | 400 | 2000 | 10 | 740 | 90 | 85 | GAK-400 | 7-10 |
| 259 | 400WQ1690-12-90 | 400 | 1690 | 12 | 740 | 90 | 85 | GAK-400 | 8-12 |
| 260 | 400WQ1500-15-90 | 400 | 1500 | 15 | 740 | 90 | 78 | GAK-400 | 11-15 |
| 261 | 400WQ2200-9-110 | 400 | 2200 | 9 | 740 | 110 | 80 | GAK-400 | 6-9 |
| 262 | 400WQ2000-13-110 | 400 | 2000 | 13 | 740 | 110 | 84 | GAK-400 | 9-13 |
| 263 | 400WQ1500-18-110 | 400 | 1500 | 18 | 740 | 110 | 78 | GAK-400 | 13-18 |
| 264 | 400WQ2000-15-132 | 400 | 2000 | 15 | 740 | 132 | 85.5 | GAK-400 | 11-15 |
| 265 | 400WQ1600-20-132 | 400 | 1600 | 20 | 740 | 132 | 82 | GAK-400 | 16-20 |
| 266 | 400WQ1500-22-132 | 400 | 1500 | 22 | 740 | 132 | 75 | GAK-400 | 18-22 |
| 267 | 400WQ2000-20-160 | 400 | 2000 | 20 | 740 | 160 | 80 | GAK-400 | 16-20 |
| 268 | 400WQ1700-22-160 | 400 | 1700 | 22 | 740 | 160 | 82 | GAK-400 | 18-22 |
| 269 | 400WQ1500-26-160 | 400 | 1500 | 26 | 740 | 160 | 83.5 | GAK-400 | 21-26 |
| 270 | 400WQ2000-23-185 | 400 | 2000 | 23 | 740 | 185 | 86 | GAK-400 | 19-23 |
| 271 | 400WQ2000-25-200 | 400 | 2000 | 25 | 740 | 200 | 80 | GAK-400 | 21-25 |
| 272 | 400WQ1700-30-200 | 400 | 1700 | 30 | 740 | 200 | 83.5 | GAK-400 | 25-30 |
| 273 | 400WQ2000-28-220 | 400 | 2000 | 28 | 740 | 220 | 80 | GAK-400 | 22-28 |
| 274 | 400WQ2000-32-250 | 400 | 2000 | 32 | 740 | 250 | 84 | GAK-400 | 25-32 |
| 275 | 400WQ2000-36-280 | 400 | 2000 | 36 | 740 | 280 | 80 | GAK-400 | 30-36 |
| 276 | 400WQ1500-47-280 | 400 | 1500 | 47 | 740 | 280 | 81 | GAK-400 | 40-47 |
| 277 | 400WQ2000-40-315 | 400 | 2000 | 40 | 740 | 315 | 80 | GAK-400 | 35-40 |
| 278 | 400WQ2000-45-355 | 400 | 2000 | 45 | 740 | 355 | 80 | GAK-400 | 38-45 |
| 279 | 450WQ2300-10-90 | 450 | 2300 | 10 | 740 | 90 | 85 | GAK-450 | 7-10 |
| 280 | 450WQ2100-12-110 | 450 | 2100 | 12 | 740 | 110 | 83 | GAK-450 | 8-12 |
| 281 | 450WQ2260-14-132 | 450 | 2260 | 14 | 740 | 132 | 83 | GAK-450 | 10-14 |
| 282 | 450WQ2280-20-185 | 450 | 2280 | 20 | 740 | 185 | 82 | GAK-450 | 16-20 |
| 283 | 450WQ2300-25-250 | 450 | 2300 | 25 | 740 | 250 | 81 | GAK-450 | 20-25 |
| 284 | 450WQ2300-29-280 | 450 | 2300 | 29 | 740 | 280 | 80 | GAK-450 | 24-29 |
| 285 | 450WQ2100-36-315 | 450 | 2100 | 36 | 740 | 315 | 78 | GAK-450 | 30-36 |
| 286 | 500WQ2000-7-55 | 500 | 2000 | 7 | 740 | 55 | 77 | GAK-500 | 5-7 |
| 287 | 500WQ2200-8-75 | 500 | 2200 | 8 | 740 | 75 | 70 | GAK-500 | 6-8 |
Performance Parameters 8
| NO. | Pump Model | Nominal Diameter | Flow | Head | Speed | Rated Power | Efficiency | Automatic Coupling | Operating Head Range |
| (mm) | (m³/h) | (m) | (r/min) | (kW) | (%) | (m) | |||
| 288 | 500WQ2200-10-90 | 500 | 2200 | 10 | 740 | 90 | 72 | GAK-500 | 7-10 |
| 289 | 500WQ2500-10-110 | 500 | 2500 | 10 | 740 | 110 | 82 | GAK-500 | 7-10 |
| 290 | 500WQ2200-12-110 | 500 | 2200 | 12 | 740 | 110 | 72 | GAK-500 | 8-12 |
| 291 | 500WQ2000-15-110 | 500 | 2000 | 15 | 740 | 110 | 83 | GAK-500 | 11-15 |
| 292 | 500WQ3000-11-132 | 500 | 3000 | 11 | 740 | 132 | 75 | GAK-500 | 8-11 |
| 293 | 500WQ2500-12-132 | 500 | 2500 | 12 | 740 | 132 | 85 | GAK-500 | 8-12 |
| 294 | 500WQ2200-15-132 | 500 | 2200 | 15 | 740 | 132 | 75 | GAK-500 | 11-15 |
| 295 | 500WQ3600-10-160 | 500 | 3600 | 10 | 740 | 160 | 83 | GAK-500 | 7-10 |
| 296 | 500WQ3000-13-160 | 500 | 3000 | 13 | 740 | 160 | 83 | GAK-500 | 9-13 |
| 297 | 500WQ2600-15-160 | 500 | 2600 | 15 | 740 | 160 | 83 | GAK-500 | 11-15 |
| 298 | 500WQ2500-16-160 | 500 | 2500 | 16 | 740 | 160 | 84 | GAK-500 | 12-16 |
| 299 | 500WQ2000-20-160 | 500 | 2000 | 20 | 740 | 160 | 82 | GAK-500 | 16-20 |
| 300 | 500WQ3000-15-185 | 500 | 3000 | 15 | 740 | 185 | 72 | GAK-500 | 11-15 |
| 301 | 500WQ2500-18-185 | 500 | 2500 | 18 | 740 | 185 | 73 | GAK-500 | 13-18 |
| 302 | 500WQ3000-16-200 | 500 | 3000 | 16 | 740 | 200 | 72 | GAK-500 | 12-16 |
| 303 | 500WQ2500-20-200 | 500 | 2500 | 20 | 740 | 200 | 78 | GAK-500 | 16-20 |
| 304 | 500WQ3000-18-220 | 500 | 3000 | 18 | 740 | 220 | 75 | GAK-500 | 14-18 |
| 305 | 500WQ2400-22-220 | 500 | 2400 | 22 | 740 | 220 | 84 | GAK-500 | 18-22 |
| 306 | 500WQ4000-15-250 | 500 | 4000 | 15 | 740 | 250 | 84 | GAK-500 | 11-15 |
| 307 | 500WQ3200-16-250 | 500 | 3200 | 16 | 740 | 250 | 75 | GAK-500 | 12-16 |
| 308 | 500WQ3000-21-250 | 500 | 3000 | 21 | 740 | 250 | 77 | GAK-500 | 17-21 |
| 309 | 500WQ2650-24-250 | 500 | 2650 | 24 | 740 | 250 | 78 | GAK-500 | 20-24 |
| 310 | 500WQ3000-24-280 | 500 | 3000 | 24 | 740 | 280 | 77 | GAK-500 | 20-24 |
| 311 | 500WQ2400-28-280 | 500 | 2400 | 28 | 740 | 280 | 85 | GAK-500 | 22-28 |
| 312 | 550WQ3000-12-160 | 550 | 3000 | 12 | 740 | 160 | 85 | GAK-550 | 8-12 |
| 313 | 550WQ4200-10-185 | 550 | 4200 | 10 | 740 | 185 | 82 | GAK-550 | 7-10 |
| 314 | 550WQ5000-10-220 | 550 | 5000 | 10 | 740 | 220 | 85 | GAK-550 | 7-10 |
| 315 | 550WQ3000-16-220 | 550 | 3000 | 16 | 740 | 220 | 84 | GAK-550 | 12-16 |
| 316 | 600WQ3000-8-110 | 600 | 3000 | 8 | 740 | 110 | 68 | GAK-600 | 6-8 |
| 317 | 600WQ3000-10-132 | 600 | 3000 | 10 | 740 | 132 | 75 | GAK-600 | 7-10 |
| 318 | 600WQ4000-10-160 | 600 | 4000 | 10 | 740 | 160 | 75 | GAK-600 | 7-10 |
| 319 | 600WQ4000-11-185 | 600 | 4000 | 11 | 740 | 185 | 75 | GAK-600 | 8-11 |
| 320 | 600WQ3500-12-185 | 600 | 3500 | 12 | 740 | 185 | 85 | GAK-600 | 9-12 |
| 321 | 600WQ4000-12-200 | 600 | 4000 | 12 | 740 | 200 | 72 | GAK-600 | 9-12 |
| 322 | 600WQ4000-14-220 | 600 | 4000 | 14 | 740 | 220 | 75 | GAK-600 | 10-14 |
| 323 | 600WQ5500-10-250 | 600 | 5500 | 10 | 740 | 250 | 83 | GAK-600 | 7-10 |
| 324 | 600WQ4000-16-250 | 600 | 4000 | 16 | 740 | 250 | 78 | GAK-600 | 12-16 |
| 325 | 600WQ3750-17-250 | 600 | 3750 | 17 | 740 | 250 | 85 | GAK-600 | 12-17 |
| 326 | 600WQ6000-10-280 | 600 | 6000 | 10 | 740 | 280 | 84 | GAK-600 | 7-10 |
| 327 | 600WQ4000-18-280 | 600 | 4000 | 18 | 740 | 280 | 77 | GAK-600 | 13-18 |
| 328 | 600WQ4000-20-315 | 600 | 4000 | 20 | 740 | 315 | 77 | GAK-600 | 16-20 |
National Standard Compliance: Strictly manufactured per GB/T 24674-2009 “Submersible sewage pumps” & JB/T 5118-2010. Hydraulic performance & mechanical safety 100% compliant. Full performance curve test reports from third parties available.
International Quality System: ISO 9001:2015 certified. Core pressure-bearing components evaluated per CE/PED 2014/68/EU, meeting EU/US market entry requirements.
Explosion-Proof & Safety Certification: Explosion-proof models feature Ex d IIB T4 certified motors, compliant with GB 3836.1/IEC 60079 standards. Oil-water probe + control cabinet combination passed triple-protection testing (leakage/overload/over-temperature).
Environmental & Material Certification: Wetted parts comply with RoHS/REACH directives. Cast iron/stainless steel materials supplied with material certificates, ensuring zero heavy metal leaching risk.
Factory Inspection Standard: Every unit undergoes 1.5× rated pressure hydrostatic test (5-min hold) + G6.3 dynamic balance calibration + insulation resistance test (≥50 MΩ), guaranteeing zero-leakage, zero-fault delivery.
Fast Standard Delivery: Covers mainstream specs: flow 5–4000 m³/h, head 7–60 m. Standard cast iron/304 stainless steel materials available. Technical confirmation & sample prototyping within 72 hours.
Deep Customization Capabilities:
Material Upgrade: Wetted parts optional in 316L, duplex 2205, or PTFE-lined for strong acids/alkalis/high-chloride/organic solvents.
Seals & Motors: Optional dual/cartridge mechanical seals, explosion-proof motors (Ex d IIB T4/Ex d IIC T4), IE4 ultra-premium efficiency motors.
Structural Adaptation: Flange standard switching (ANSI/DIN/JIS/GB), custom coupling bases, mobile trailer configurations, low-noise enclosures.
Intelligent Expansion: Pre-wired interfaces for level/temperature/vibration/grease concentration sensors; supports integration with auto control cabinets, IoT remote monitoring, PLC auto-rotation systems.
For customization inquiries, please contact us. Our engineering team will provide a tailored process solution within 48 hours.
Pre-Installation Checks: Verify foundation load capacity ≥1.5× equipment full-load weight, maintain ≥500mm clearance for maintenance. Confirm media temperature ≤60℃, pH 5–9, solids particle size ≤50% of pump outlet diameter. For non-self-cooling models, ensure motor immersion depth ≤1/2.
Installation Key Points:
1.Mount pump vertically. Fix coupling base horizontally, ensure rail parallelism ≤2 mm/m to prevent seal misalignment from tilting.
2.Connect inlet/outlet with flexible rubber joints. Never transmit pipe stress to pump body to prevent weld cracking or seal failure.
3.Route float switch cable along rails, avoid interference with moving parts. Separate signal cables from control cables to prevent EMI.
4.Before initial startup, manually rotate shaft to confirm smooth operation. Jog test to verify rotation direction (clockwise from motor end). Measure insulation resistance ≥50 MΩ.
Commissioning Process: Prime & vent → Jog test for direction → No-load run 5 min → Slowly open discharge valve to rated duty → Record current/pressure/vibration/temp rise → Acceptance sign-off.
Request the “WQ Series Submersible Sewage Pump Installation & Maintenance Manual” (PDF/English version) for complete dimensional drawings, coupling installation diagrams, and commissioning logs.
Q1: How does the large-passage impeller prevent clogging with solids up to 50% of outlet diameter?
→ Impeller features single/dual-channel twisted blades + optimized volute for expanded flow passage. Minimum flow area ≥50% of outlet diameter. Tested: Φ50mm solids pass smoothly without jamming.
Q2: How do dual tungsten carbide mechanical seals achieve ≥8,000h continuous operation?
→ Two seals in series (inner main + outer auxiliary) with oil-chamber lubrication/cooling + tungsten carbide mating faces. Wear resistance improved 3×. Tested: ≥8,000h continuous operation with zero leakage.
Q3: Why is motor immersion depth limited to ≤1/2 for non-self-cooling models?
→ Motor cooling relies on media convection. Immersion >1/2 causes poor heat dissipation in upper windings, risking over-temperature. For full-submersion operation, specify during ordering for water-jacket external circulation cooling upgrade.
Q4: How does float switch control prevent motor damage from frequent start/stop cycles?
→ Control cabinet features built-in delay protection (default interval ≥3 min) + level differential adjustment (default start/stop level difference ≥200 mm), effectively reducing start/stop frequency and extending contactor/winding lifespan.
Q5: Can explosion-proof models be used in Zone 0 environments with hydrogen/acetylene?
→ Standard explosion-proof models (Ex d IIB T4) suit Zone 1 gas environments. For Zone 0 or IIC class (hydrogen/acetylene), specify during ordering for Ex d IIC T4 certification upgrade + intrinsically safe control circuits.
