| 摘要 |
PROBLEM TO BE SOLVED: To facilitate sealing a valve closing body for a guide element and to reduce mass to be moved during operating. SOLUTION: The valve closing body 4 forms a seal seat cooperating with a valve seat face 6 mounted on a valve seat body 5. At least one element 33 adapted to guide a flow is placed in a range of a guiding part of the valve closing body 4. The valve closing body 4 has a guide pin 31. The guide pin 31 forms an axial guiding part cooperating with a cutout 32 formed on the valve seat body 5 in a downstream side of the seal seat for guiding the valve closing body 4.
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