The sealing structure of Triple Eccentric Butterfly Valve is generally stainless steel sealing structure. Because of the good characteristics of Triple Eccentric Butterfly Valve, it is widely used in various industries. During the use process, due to improper operation and other reasons, leakage of sealing surface may occur. Do you know the reasons for leakage of Triple Eccentric Butterfly Valve sealing surface? Below Ruito's small knitting to take you to understand the Triple Eccentric Butterfly Valve sealing surface leakage reasons and maintenance.
Reasons for leakage of sealing surface of stainless steel Triple Eccentric Butterfly Valve:

The sealing structure of stainless steel butterfly valves is generally tri-eccentric. The advantage of this structure is that the butterfly plate and seat are almost zero wear and tear, and it has four advantages of metal hard seal and elastic arch seal.

1. The top of the connection between the stem and the closure is suspended, irregular or worn.
2. The sealing surface of hard-sealed stainless steel butterfly valve is abrasively ground and can not form a tight line.
3. Improper selection of sealing material quality or failure to select valves according to working conditions;
4. The valve stem is bent or assembled incorrectly to make the closure skewed or uneven.
Maintenance of stainless steel Triple Eccentric Butterfly Valve:
1. Careful adjustment and smooth operation;
2. When installing gaskets, attention should be paid to cleaning. Kerosene should be used on the sealing surface, and gaskets should not fall on the ground.
3. Correctly select soft-sealed stainless steel butterfly valve or hard-sealed stainless steel butterfly valve according to working conditions.
4. Gasket assembly should be aligned, uniform force, gasket does not allow lapping and use of double gaskets;
5. The corrosion, damage and processing quality of the static sealing surface are not high. It should be repaired, ground and colored to make the static sealing surface meet the relevant requirements.
6. Bolts should be screwed evenly and symmetrically. Torsion wrenches should be used when necessary. Pre-tightening force should meet the requirements and should not be too large or small. There should be a certain pre-tightening clearance at the joint of flange and thread.
Do you understand the reason for leakage of sealing surface of Triple Eccentric Butterfly Valve? In the process of using Triple Eccentric Butterfly Valve, attention to daily maintenance will effectively prolong the service life of Triple Eccentric Butterfly Valve.