Title:
DEVICE FOR THE REGULATION OF FLOW APPLIED TO FLOW VALVES WORKING UNDER PRESSURE DIFFERENTIAL
Document Type and Number:
WIPO Patent Application WO2005074510
Kind Code:
A3
Abstract:
A device (1) for regulating flow comprises a main valve operating under differential pressure wherein the main valve has a main flow inlet (112) and a main flow outlet (113). The main flow inlet is equipped with a valve seat (114) over which a main shutter (100) is adjusted in a perpendicular direction to its shuttering plane. The main shutter has a hole (111) on its locking face communicating with a pressure chamber (110) disposed above the main shutter. A secondary control valve (105) regulates small flows through the hole so as to create greater or less pressure within the pressure chamber to close or open the main shutter.
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Inventors:
PEREZ C SERGIO
Application Number:
PCT/US2005/002347
Publication Date:
December 15, 2005
Filing Date:
January 27, 2005
Export Citation:
Assignee:
MFC SYSTEM LLC (US)
International Classes:
F16K25/02; F16K31/12; F16K31/383; F16K31/385; F16K39/02; (IPC1-7): F16K25/02; F16K39/02
Foreign References:
| US5738332A | 1998-04-14 | |||
| US5769387A | 1998-06-23 | |||
| US6102366A | 2000-08-15 |
Other References:
See also references of EP 1709353A4
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