JPS6465369A - Flow passage switching valve - Google Patents
Flow passage switching valveInfo
- Publication number
- JPS6465369A JPS6465369A JP21753687A JP21753687A JPS6465369A JP S6465369 A JPS6465369 A JP S6465369A JP 21753687 A JP21753687 A JP 21753687A JP 21753687 A JP21753687 A JP 21753687A JP S6465369 A JPS6465369 A JP S6465369A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- diaphragms
- valve hole
- press
- parts
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Multiple-Way Valves (AREA)
Abstract
PURPOSE:To improve motion reliability and seal reliability, by a method wherein the collection areas on the press chamber sides of right and left diaphragms are set to a value higher than that on the valve hole side of a valve part. CONSTITUTION:The collection areas on the pressure chambers 37 and 38 sides of diaphragms 31 and 32 are set to a value enoughly higher than an area in which a pressure is collected by valve parts 33 and 34 on the valve hole 14 side when annular projections 33a and 34a are seated on valve seats 14b and 14c. This constitution brings a valve stem 25 into a non-contact state with the valve hole 14, resulting in improvement of motion reliability. Further, since, when the valve hole 14 is closed by the valve parts 33 and 34 of the diaphragms 31 and 32, compressed air from selection ports 17 and 18 enters the press chambers 37 and 38 to press the diaphragms 31 and 32 from the outside, ability of sealing the valve hole 14 by means of the valve parts 33 and 34 of the diaphragms 31 and 32 is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21753687A JPS6465369A (en) | 1987-08-31 | 1987-08-31 | Flow passage switching valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21753687A JPS6465369A (en) | 1987-08-31 | 1987-08-31 | Flow passage switching valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6465369A true JPS6465369A (en) | 1989-03-10 |
Family
ID=16705789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21753687A Pending JPS6465369A (en) | 1987-08-31 | 1987-08-31 | Flow passage switching valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6465369A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10361082A1 (en) * | 2003-12-22 | 2005-07-21 | SCHÜTZE, Thomas | 3/2 way seat valve with membrane e.g. for food, pharmaceutical, polymer operation processes, has propelled closing body between two movable valve seats and valve closing body is connected to valve drive |
-
1987
- 1987-08-31 JP JP21753687A patent/JPS6465369A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10361082A1 (en) * | 2003-12-22 | 2005-07-21 | SCHÜTZE, Thomas | 3/2 way seat valve with membrane e.g. for food, pharmaceutical, polymer operation processes, has propelled closing body between two movable valve seats and valve closing body is connected to valve drive |
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