Gate valve seat and seat ring
The invention relates to a gate valve seat and a seat ring. A gate valve (40) has a body (42) having a cavity (45) and a flow passage (44) intersecting the cavity (45). A seat (50) is mounted to the body (42) at the intersection of the flow passage (44) and the cavity (45). A gate (46) is installed...
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| creator | GRAY DENNIS WOLFE CHRISTOPHER E AJDELSZTAJN LEONARDO |
| description | The invention relates to a gate valve seat and a seat ring. A gate valve (40) has a body (42) having a cavity (45) and a flow passage (44) intersecting the cavity (45). A seat (50) is mounted to the body (42) at the intersection of the flow passage (44) and the cavity (45). A gate (46) is installed at the cavity (45) and has an engaging face (80) that slidingly engages the seat (50) while the gate (46) is being moved between open and closed positions. The end faces (58,72) between a seat pocket and the seat are hard-coated layers (70,74) and smooth-finished to provide sealing when mated. The hard-coated pocket and seat sealing surfaces (58,72) extend the life of the valve (40) by eliminating the need for an elastomeric seal of limited life. |
| format | Patent |
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A seat (50) is mounted to the body (42) at the intersection of the flow passage (44) and the cavity (45). A gate (46) is installed at the cavity (45) and has an engaging face (80) that slidingly engages the seat (50) while the gate (46) is being moved between open and closed positions. The end faces (58,72) between a seat pocket and the seat are hard-coated layers (70,74) and smooth-finished to provide sealing when mated. The hard-coated pocket and seat sealing surfaces (58,72) extend the life of the valve (40) by eliminating the need for an elastomeric seal of limited life.</description><language>chi ; eng</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; DEVICES FOR VENTING OR AERATING ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; ENGINEERING ELEMENTS AND UNITS ; FIXED CONSTRUCTIONS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>2012</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20121226&DB=EPODOC&CC=CN&NR=102840348A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20121226&DB=EPODOC&CC=CN&NR=102840348A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GRAY DENNIS</creatorcontrib><creatorcontrib>WOLFE CHRISTOPHER E</creatorcontrib><creatorcontrib>AJDELSZTAJN LEONARDO</creatorcontrib><title>Gate valve seat and seat ring</title><description>The invention relates to a gate valve seat and a seat ring. A gate valve (40) has a body (42) having a cavity (45) and a flow passage (44) intersecting the cavity (45). A seat (50) is mounted to the body (42) at the intersection of the flow passage (44) and the cavity (45). A gate (46) is installed at the cavity (45) and has an engaging face (80) that slidingly engages the seat (50) while the gate (46) is being moved between open and closed positions. The end faces (58,72) between a seat pocket and the seat are hard-coated layers (70,74) and smooth-finished to provide sealing when mated. The hard-coated pocket and seat sealing surfaces (58,72) extend the life of the valve (40) by eliminating the need for an elastomeric seal of limited life.</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>MINING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB1TyxJVShLzClLVShOTSxRSMxLgTCKMvPSeRhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvLOfoYGRhYmBsYmFozExagCLOiN8</recordid><startdate>20121226</startdate><enddate>20121226</enddate><creator>GRAY DENNIS</creator><creator>WOLFE CHRISTOPHER E</creator><creator>AJDELSZTAJN LEONARDO</creator><scope>EVB</scope></search><sort><creationdate>20121226</creationdate><title>Gate valve seat and seat ring</title><author>GRAY DENNIS ; WOLFE CHRISTOPHER E ; AJDELSZTAJN LEONARDO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN102840348A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2012</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>MINING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>GRAY DENNIS</creatorcontrib><creatorcontrib>WOLFE CHRISTOPHER E</creatorcontrib><creatorcontrib>AJDELSZTAJN LEONARDO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GRAY DENNIS</au><au>WOLFE CHRISTOPHER E</au><au>AJDELSZTAJN LEONARDO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Gate valve seat and seat ring</title><date>2012-12-26</date><risdate>2012</risdate><abstract>The invention relates to a gate valve seat and a seat ring. A gate valve (40) has a body (42) having a cavity (45) and a flow passage (44) intersecting the cavity (45). A seat (50) is mounted to the body (42) at the intersection of the flow passage (44) and the cavity (45). A gate (46) is installed at the cavity (45) and has an engaging face (80) that slidingly engages the seat (50) while the gate (46) is being moved between open and closed positions. The end faces (58,72) between a seat pocket and the seat are hard-coated layers (70,74) and smooth-finished to provide sealing when mated. The hard-coated pocket and seat sealing surfaces (58,72) extend the life of the valve (40) by eliminating the need for an elastomeric seal of limited life.</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | Gate valve seat and seat ring |
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