JPS552812A - Butterfly valve - Google Patents
Butterfly valveInfo
- Publication number
- JPS552812A JPS552812A JP7377478A JP7377478A JPS552812A JP S552812 A JPS552812 A JP S552812A JP 7377478 A JP7377478 A JP 7377478A JP 7377478 A JP7377478 A JP 7377478A JP S552812 A JPS552812 A JP S552812A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- liquid
- opening
- plate
- 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
- Lift Valve (AREA)
Abstract
PURPOSE: To provide a butterfly valve which provides a liquid flow passage of a rectangular cross section and an adjustable opening as desired and wherein an excellent opening curve can be easily obtained over the whole area of the valve opening.
CONSTITUTION: A valve body 1 is formed to provide a substantially rectangular cross section as taken along a plane perpendicular to the direction of a flow of liquid. A valve shaft 2 is pivotally received, at its both ends, in through-holes formed in both side walls of the valve body 1. The valve shaft 2 has a rectangular valve plate 3 secured thereto which is adapted to abut against the surrounding four walls of the valve body 1 to stop liquid when it is in a closed position. The valve body 1 has curved sections 11, 12 formed in the upper and lower walls thereof which sections 11, 12 have a curve involved in a cylindrical plane which is defined by a full rotation of the valve plate 3 around the axis of the valve shaft 2. The valve body 1 further has a pair of opening adjuster plates 51, 52 disposed to face outer sliding contact sections 31, 32 of the valve plate 3 at the position of the valve plate 3 at which the valve plate 3 is ready to be opened. The adjuster plates 51, 52 are each formed into a narrow elongated plate and are secured by a suitable number of fastening screws 61 to the bottoms of cover members 41, 42 which are removably received in a pair of openings formed in the upper and lower walls of the valve body 1 to extend in a direction transverse to the flow of liquid.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7377478A JPS552812A (en) | 1978-06-20 | 1978-06-20 | Butterfly valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7377478A JPS552812A (en) | 1978-06-20 | 1978-06-20 | Butterfly valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS552812A true JPS552812A (en) | 1980-01-10 |
Family
ID=13527882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7377478A Pending JPS552812A (en) | 1978-06-20 | 1978-06-20 | Butterfly valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS552812A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6228970U (en) * | 1985-08-07 | 1987-02-21 |
-
1978
- 1978-06-20 JP JP7377478A patent/JPS552812A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6228970U (en) * | 1985-08-07 | 1987-02-21 | ||
JPH0235089Y2 (en) * | 1985-08-07 | 1990-09-21 |
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