Rotary part of AS-B270 customized metal bellow mechanical seal without insert ring

 Background Knowledge:
General usage guarantee  of mechanical seals
When the working conditions meet the requirements of the product use parameters, under the premise of correct installation, the service life of the corrosion-resistant mechanical seal is half a year, and the medium-sized mechanical seal is one year. The allowable leakage value is: shaft diameter d≤50mm Average leakage Q ≤3mL/h; d＞50mm, Q≤5mL/h. 

If used in harsh conditions, such as high temperature, low temperature, high speed, high pressure, high viscosity, low viscosity fluid, special strong corrosive fluid, granular medium and/or frequently being started and stopped，the service life and average leakage amount of the mechanical seal should be agreed between the supplier and the buyer.