ZW
Self-Priming Sewage Pump
Self-Priming Sewage Pump seri ZW adalah produk baru dengan struktur inovatif yang dikembangkan berdasarkan penelitian mendalam menggunakan teknologi dari China, Singapura, Amerika Serikat, dan Jerman. Pompa ini menggabungkan fungsi self-priming dan pompa pembuangan tanpa hambatan menjadi satu, menggunakan bentuk aliran luar sirkulasi aksial terbuka, dan melalui desain khusus pada bagian pompa serta saluran aliran impeller, sehingga tidak perlu memasang katup kaki dan menyiram air seperti pompa air bersih biasa, dan dapat menghisap serta membuang cairan kotor yang mengandung partikel padat besar dan zat cair berserat panjang.
Pompa ini sangat cocok digunakan untuk proyek pembuangan limbah kota, pengolahan lumpur sungai, budidaya perikanan, industri ringan, pembuatan kertas, tekstil, makanan, kimia, listrik, serat, bahan pulp, dan berbagai pompa media campuran kimia lainnya. Dibandingkan dengan produk sejenis di dalam negeri, pompa ini memiliki struktur yang sederhana, kemampuan self-priming yang baik, kemampuan pembuangan limbah yang kuat, efisiensi tinggi dan hemat energi, serta mudah digunakan dan dirawat.
Technical Specifications
| Pump Type | Self-Priming Non-Clogging Sewage Pump |
| Series | ZW Series |
| Construction | Horizontal Single-Stage Single-Suction Centrifugal Pump |
| Priming Type | Self-Priming |
| Impeller Type | Open / Semi-Open Non-Clogging Impeller |
| Suction Type | Axial Suction |
| Discharge Type | Vertical Upward Discharge |
| Installation | Horizontal Base Mounted |
| Seal Type | Mechanical Seal |
| Drive Type | Electric Motor or Diesel Engine |
| Rotation Direction | Clockwise (Viewed from Motor End) |
| Applications | Municipal Sewage, Industrial Wastewater, Mining, Construction Dewatering, Paper Mills, Textile Industry, Chemical Plants, Aquaculture, Agriculture |
| Flow Capacity | 3 – 800 m³/h |
| Head Range | 12 – 80 m |
| Maximum Suction Lift | 5 – 6.5 m |
| Motor Power | 1.5 – 55 kW |
| Speed | 1450 – 2900 rpm |
| Maximum Efficiency | Up to 80% |
| NPSH Required | 2 – 6 m |
| Maximum Working Pressure | 1.6 MPa |
| Self-Priming Time | Approximately 3 min/5 m suction lift (depending on model) |
| Solids Handling Capacity | Up to 60% of discharge diameter |
| Fiber Handling Capability | Up to 5 times outlet diameter length |
| Motor Type | Three-Phase Asynchronous Motor |
| Frequency | 50 Hz / 60 Hz |
| Voltage | 220V / 380V / 400V / 415V / 440V |
| Power Range | 1.5 – 55 kW |
| Speed Options | 1450 rpm / 2900 rpm |
| Insulation Class | Class B or F |
| Protection Class | IP55 (Typical) |
| Duty Rating | Continuous Duty (S1) |
| Explosion-Proof Option | Available (Ex Motor) |
| Drive Options | Direct Coupled Electric Motor or Diesel Engine |
| Pump Casing | Cast Iron |
| Impeller | Cast Iron |
| Shaft | Stainless Steel 304 |
| Mechanical Seal | Hard Alloy Mechanical Seal |
| Bearing Housing | Cast Iron |
| Fasteners | Carbon Steel |
| Liquid Type | Sewage, Wastewater, Slurry, Industrial Effluent |
| Medium Temperature | -20°C to 100°C |
| Special Design Temperature | Up to 130°C |
| Ambient Temperature | ≤ 50°C |
| Liquid Density | ≤ 1,240 kg/m³ |
| pH Range (Cast Iron) | 6 – 9 |
| pH Range (Stainless Steel) | 2 – 13 |
| Maximum Solids Content | Up to 30–35% |
| Maximum Viscosity | ≤ 100 cP |
| Maximum Suction Height Difference | 5.5 m |
| Maximum Suction Pipe Length | 10 m |
| Operating Mode | Continuous Duty |
| Suction Diameter | DN25 – DN300 |
| Discharge Diameter | DN25 – DN300 |
| Connection Type | Flanged |
| Flange Standard | GB/T Standard (Optional ANSI / DIN) |
| Pump Orientation | Horizontal |
| Mounting Type | Baseplate Mounted |
| Suction Arrangement | Axial Suction |
| Discharge Arrangement | Vertical Upward Discharge |
| Coupling Type | Direct Coupling |
| Installation | Dry Installation Above Liquid Level |
1 | Pipa Inlet |
2 | Inlet Check Valve (Valve Searah) |
3 | Priming Ball Valve (Dengan Threaded Plug) |
4 | Pipa Outlet |
5 | Casing Pompa |
6 | Cover Seal |
7 | Shaft Pompa |
8 | Bearing |
9 | Blok Bearing |
10 | Cover Bearing / Bearing Cap |
11 | Coupling |
12 | Mechanical Seal |
13 | Impeller |
14 | Mur Impeller |
15 | Cover Plate |
16 | Drain Plug |
