There are many kinds of sealing structure of melt pump, Zhengzhou Haike commonly used sealing structure types are as follows.

1、Packing seal

2、Magnetic seal

3、Lip seal + packing combination seal

4、Single-face/double-face mechanical seals

5、Spiral seal + external cooling

6、Screw seal+external cooling+packing (for the high vacuum conditions of the reactor discharge conditions, SEACOR provides special regulator and sealing liquid system).

In contrast, packing seal is the most commonly used and economical sealing structure, and the materials are generally PTFE, flexible graphite braided material, carbon fiber impregnated graphite braided packing and so on.

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