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发明名称
有衬套的内先导气式气动换向阀
摘要
本实用新型提供了一种有衬套的内先导气式气动换向阀,由螺纹板和下阀体构成,螺纹板与下阀体的接触面上有与主流道相通的凹槽,凹槽的四周安装有封闭的密封圈,所述的密封圈的内侧有衬套。本实用新型其优点是衬套的存在减少了加工精度,同时增加了换向密封的可靠性,磨损小,寿命长。加工方便,生产效率高。
申请公布号
CN201078503Y
申请公布日期
2008.06.25
申请号
CN200720070420.2
申请日期
2007.05.29
申请人
缪煜;岑引伸
发明人
缪煜
分类号
F16K27/00(2006.01)
主分类号
F16K27/00(2006.01)
代理机构
代理人
主权项
1.一种有衬套的内先导气式气动换向阀,由螺纹板和下阀体构成,螺纹板与下阀体的接触面上有与主流道相通的凹槽,凹槽的四周安装有封闭的密封圈,其特征在于:所述的密封圈的内侧有衬套。
地址
226407江苏省如东县宏信机械制造有限公司
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