AS-C405 Customized Metal Bellow Type Cartridge Mechanical Seal

AS-C405 seal is metal bellow type cartridge mechanical seal made as per clent's drawing 

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Background Infomation：

What are the advantages of welded metal bellows mechanical seals ？

Due to the variable volume performance of bellows, it can be used as temperature compensation, volume compensation, axial compensation and adjustable gas volume in many fluid systems.

What are the advantages of welded metal bellows mechanical seals compared to other types of mechanical seals? For mechanical seals used in rotating equipment, if leakage is too large, they will be unusable and must be repaired or replaced. Therefore, for the purpose of long-term stable operation of the equipments, the selection of mechanical seals should take reliability as primary indicator, and at the same time refers to their prices. Generally speaking, performances of welded metal bellow mechanical seals are much more reliable in use than other types of mechanical seals.The main factors considered are as follows：

1. The force on the sealing end face of the bellows mechanical seal is relatively uniform;

2. The followability of the bellows mechanical seal is good, and it can to e certain degree make up for the end face clearance (generally it is required to be less than 1μm，and caused by deflection of the rotating shaft, equipment vibration, coaxiality error between the rotary face& stationary seat and the shaft sleeve, etc.), thereby reducing possible leakage of the mechanical seal;

3. Compared with the large spring type mechanical seal, the bellows mechanical seal is less affected by the surface corrosion of the shaft sleeve;

4. The stationary seat of the bellows mechanical seal is fastened on the mechanical seal gland with bolts while most of the stationary seats of spring-type mechanical seals basically rely on the excessive cooperation between the O-ring and the mechanical seal gland, as well as the fluid pressure and the action of the outer spring to seal.The sealing effect of the stationary seat ot latter type is affected by the matching size and corrosion degree of the gland sealing surface, which means poor sealing effect.

In a word,though prices of welded metal bellows mechanical seals are relatively high, but it is much more economical to use welded bellows mechanical seals for most equipments in terms of unit cost of equipment operation cycle.

Since cartridge structure boasts the advantages of easy installation & repalcement & maintenance & removal，you can easily imagine how AS-C405 boasts advanges emerging from both sides