ZYB series heavy oil gear pump is commonly used for pumping media with temperature not higher than 260 ℃, viscosity not higher than 150 mm²/S and containing non-metallic impurities, including diesel oil, heavy oil, coal tar, motor oil, etc. This pump adopts the design of self-sealing lubrication and self-adjusting structure, and the parts are made of high wear-resistant materials, featuring smooth operation, compact structure, good self-absorption, high efficiency and strong adaptability, etc. Meanwhile, the working life is 10 times that of ordinary gear pumps when the liquid is contaminated.
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| Type | Inlet and Outlet | Flow | Pressure | Speed | Suction Height | Power | |
| mm | m³/h | L/min | MPa | r/min | m | kw | |
| ZYB4/0.6 | 25 | 4 | 66 | 0.6 | 960 | 5 | 1.5 |
| ZYB7/0.6 | 40 | 7 | 116 | 0.6 | 960 | 5 | 3 |
| ZYB13/0.6 | 50 | 13 | 216 | 0.6 | 960 | 5 | 4 |
| ZYB13/1.0 | 50 | 13 | 216 | 1.0 | 960 | 5 | 5.5 |
| ZYB18/0.6 | 70 | 18 | 300 | 0.6 | 960 | 5 | 7.5 |
| ZYB18/1.0 | 70 | 18 | 300 | 1.0 | 960 | 5 | 11 |
| ZYB30/0.6 | 80 | 30 | 500 | 0.6 | 960 | 5 | 7.5 |
| ZYB38/0.4 | 100 | 38 | 633 | 0.4 | 960 | 5 | 15 |
| ZYB45/0.6 | 100 | 45 | 750 | 0.4 | 960 | 5 | 18.5 |
| ZYB60/0.6 | 100 | 60 | 1000 | 0.4 | 960 | 5 | 22 |