发明名称 |
DISPOSITIF DE CONTROLE DE L'ECOULEMENT D'UN FLUIDE AU MOYEN D'UNE SOUPAPE DIFFERENTIELLE |
摘要 |
The flow control valve for agricultural irrigation has a housing (3) defining a chamber (4) having an inlet (5), outlet (6) and a drain duct (7). The duct has a differential valve (2) with an obturator moved by a diaphragm (9), moved by an over pressure on one face. The diaphragm has a cut out in its centre. The upstream area of the face (11) around the opening engages on a seat (16). The downstream area of the face has a piston (17) forming part of the drain duct. |
申请公布号 |
FR2803009(B1) |
申请公布日期 |
2002.03.22 |
申请号 |
FR19990016451 |
申请日期 |
1999.12.24 |
申请人 |
WATTS EUROTHERM |
发明人 |
BOMMELAER CHRISTIAN;BONGRAND LAURENT |
分类号 |
E03C1/10;G05D16/06;(IPC1-7):F16K24/02;F16K7/17;F16K17/18 |
主分类号 |
E03C1/10 |
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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