There are generally two seal holes on seals:

1、Its feature lies in line ball framework made of hard metal materials inside of seals.

2、The upper surface of line ball framework parallels with seal holes of seal.

3、There is a line pressing block connected with and pressed inside of line ball framework at the upper side. The wire penetrates holes and formulate start shape with line ball framework.

Attentions of anti-theft seals at cabin valve:

1.Check if the drawing is same with cabin piping range;

2.Check the role of sealing valve;

3.Confirm if there is oily water at related piping range;

4.Confirm the planned sealing valve is closed tightly;

5.Stop all oil activities related to oily water.

6.Shipping captain should accompany during whole process and confirm seal position during sealing process.