发明名称 |
Ventilvorrichtung mit stationären und mobilen oder drehbaren Ventilkörpern |
摘要 |
<p>The invention provides an erosion resistant pressure reduction valve or choke comprising a valve housing (1,22) defining a valve chamber (2) connected with an inlet (3) and outlet (4), a stationary first valve body (6,17) arranged in the chamber, and a second valve body (7,18). The second valve body is arranged so as to be turnable or displaceable relative to the first valve body by means of a spindle or the like (14,23). The first and second valve bodies are each provided with corresponding flow-through apertures (19,28). Flow through the valve is regulated by turning or displacing the turnable/displaceable second valve body relative to the first. The apertures in the valve bodies (6,7,17,18) are provided with casings (15,20) made in one piece of polycrystalline diamond. <IMAGE></p> |
申请公布号 |
DE69208950(D1) |
申请公布日期 |
1996.04.18 |
申请号 |
DE1992608950 |
申请日期 |
1992.06.22 |
申请人 |
NORSK HYDRO A.S, OSLO, NO |
发明人 |
SKYLLINGSTAD, OLAV, F-76133 EPOUVILLES, FR;NOKLEBERG, LARS, N-1342 JAR, NO;SONTVEDT, TERJE, N-1346 GJETTUM, NO |
分类号 |
E21B34/02;F16K25/00;(IPC1-7):F16K25/00 |
主分类号 |
E21B34/02 |
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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