Valve
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
专利名称：Valve
发明人：Scheffel, Gary William,Kolenc, Terrence
James
申请号：EP90201907.4
申请日：19870515
公开号：EP0399625A1
公开日：
19901128
专利内容由知识产权出版社提供
专利附图：
摘要：A diaphragm-type valve uses a multiple annular metal diaphragm (36) welded about its inner periphery to a valve operating stem (34). The diaphragm is sealingly
clamped about its outer periphery to the valve body and is also clamped about its inner
periphery at a location spaced outwardly of the weld to prevent the weld from being subjected to flexure stresses during valve actuation. The outer periphery of the diaphragm (36′) may be welded to the valve body (10′) outwardly of the outer clamp. The actuating assembly (20) is arranged to produce non-rotary, reciprocatory movement of the operating stem (34) through a bonnet mounted rotary actuator (116). A stem tip seal (16) comprises a metallic seal ring (152) backed by a PTFE ring (158) and surrounded by a harder plastics ring (160) held captive by a sleeve (166).
申请人：NUPRO COMPANY
地址：4800 East 345 Street Willoughby Ohio 44094 US
国籍：US
代理机构：Jones, Colin
更多信息请下载全文后查看。