MY119324A - A diaphragm valve - Google Patents

A diaphragm valve

Info

Publication number
MY119324A
MY119324A MYPI9702031A MY119324A MY 119324 A MY119324 A MY 119324A MY PI9702031 A MYPI9702031 A MY PI9702031A MY 119324 A MY119324 A MY 119324A
Authority
MY
Malaysia
Prior art keywords
diaphragm
valve
interior
port
skirt
Prior art date
Application number
Inventor
Albert Frederick Hansen
Original Assignee
Hansen Dev Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hansen Dev Ltd filed Critical Hansen Dev Ltd
Publication of MY119324A publication Critical patent/MY119324A/en

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  • Fluid-Driven Valves (AREA)

Abstract

A DIAPHRAGM VALVE FOR THE WATER INTAKE IN IRRIGATION SYSTEMS OR SIMILAR COMPRISES A HOLLOW BODY HAVING A PORT TO CONNECT A HYDRAULIC OR PNEUMATIC SYSTEM TO THE INTERIOR OF THE BODY OF THE VALVE AND AT LEAST ONE VENTILATION OPENING THROUGH A SIDE WALL OR WALLS OF THE BODY FROM THE EXTERIOR TO THE INTERIOR OF THE VALVE. A DIAPHRAGM (7) IS MOVABLY MOUNTED WITHIN THE INTERIOR OF THE BODY AND NORMALLY CLOSES THE INLET PORT (20). THERE IS A BLEED APERTURE (11) THROUGH THE DIAPHRAGM (7) TO A CAVITY (12) BEHIND THE DIAPHRAGM (7). WHEN THE PRESSURE ON THE INLET SIDE OF THE DIAPHRAGM (7) FALLS BELOW THE EXTERNAL PRESSURE, THE DIAPHRAGM (7) WILL MOVE AWAY FROM THE INLET PORT (20) TO OPEN THE PORT TO FLUID ENTERING THE INTERIOR OF THE BODY OF THE VALVE THROUGH THE SIDE WALL(S) OF THE BODY OF THE VALVE, AND THE DIAPHRAGM (7) WILL MOVE TO CLOSE THE PORT WHEN THE PRESSURE ON THE PORT SIDE OF THE DIAPHRAGM (7) IS EQUALISED WITH THE EXTERNAL PRESSURE. PREFERABLY THE DIAPHRAGM (7) COMPRISES A THIN FLEXIBLE ANNULAR SKIRT 7A) EXTENDING FROM THE PERIPHERY OF THE DIAPHRAGM (7) WITH THE DISTAL EDGE (7C) OF THE SKIRT (7A) RETAINED IN AN ANNULAR RECESS (8) AROUND THE CAVITY (12) BEHIND THE DIAPHRAGM (7) TO MOVABLY MOUNT THE DIAPHRAGM (7) WITHIN THE INTERIOR OF THE BODY OF THE VALVE SO THAT THE DIAPHRAGM (7) MOVES BY FLEXING AND/OR FOLDING OF THE SKIRT (7A).FIGURE 4
MYPI9702031 1996-05-08 1997-05-09 A diaphragm valve MY119324A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ286543A NZ286543A (en) 1996-05-08 1996-05-08 Diaphragm valve with soft flexible outer diaphragm skirt folding to allow diaphragm to move off seat
NZ29957096 1996-10-11

Publications (1)

Publication Number Publication Date
MY119324A true MY119324A (en) 2005-05-31

Family

ID=19925978

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9702031 MY119324A (en) 1996-05-08 1997-05-09 A diaphragm valve

Country Status (2)

Country Link
MY (1) MY119324A (en)
NZ (1) NZ286543A (en)

Also Published As

Publication number Publication date
NZ286543A (en) 1998-05-27

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