发明名称 |
BUTTERFLY VALVE |
摘要 |
Provided is a butterfly valve configured so that the sealing performance of the butterfly valve is ensured even if the butterfly valve is exposed to high-temperature fluid and is installed in a high radiation environment. A butterfly valve has: a valve body-side valve seat section which is formed on the outer periphery of a valve body; a valve box-side valve seat section which is formed on a valve box; and a valve movement mechanism which, as a valve shaft pivots, moves the valve body in the direction of extension of a flow passage, between a blocking position at which the valve body-side valve seat section and the valve box-side valve seat section are in contact with each other to close a flow passage, and an open position at which the valve body-side valve seat section and the valve box-side valve seat section are separated from each other to open the flow passage. The valve body-side valve seat section is formed from a laminated material comprising a stainless steel plate and a plate-shaped body which consists of expanded graphite. |
申请公布号 |
WO2016104213(A1) |
申请公布日期 |
2016.06.30 |
申请号 |
WO2015JP84903 |
申请日期 |
2015.12.14 |
申请人 |
HITACHI-GE NUCLEAR ENERGY, LTD.;OKANO VALVE MFG. CO. LTD. |
发明人 |
KAWAHARA YOSHIHARU;KIYOTOKI YOSHIHISA;NAKASHIMA TAKAYOSHI;SAKEMURA KEISUKE;KANEMURA YOSHITOMO;IMOTO YUKIO |
分类号 |
F16K1/24;F16K1/22;F16K1/226;F16K1/32;F16K31/05 |
主分类号 |
F16K1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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