What about the water leakage at the valve stem of the sanitary manual stainless steel butterfly valve?
The following can be done:1, small diameter, you can buy a new, you can replace the spool;2, the big diameter can be purchased by the corresponding specifications of the sealing ring replacement.
2, the big diameter can be purchased by the corresponding specifications of the sealing ring replacement.
The following can be done:1, small diameter, you can buy a new, you can replace the spool;
