How to avoid the front pump leak?

1, mechanical seal in operation, we must maintain adequate cooling lubrication. This has a higher cooling water quality requirements, to prevent poor cooling water quality, resulting in clogging. Because the thermometer and the cooling water flow meter are not installed at the mechanical seal, operators are required to closely monitor the temperature of the mechanical seal cooling water bottle during routine inspection. 2, in the mechanical seal overhaul process, we must pay attention to the installation of precision control. Mechanical seal face during installation to ensure clean, and to apply a layer of lubricant (recommended Mobil 13M hydraulic oil). Static ring gland installation, to force uniform, with feeler gauge, the upper and lower position deviation is not greater than 0.05mm. At the same time to check the gland in the shaft diameter with the gap, deviation of not more than 0.01mm.