JPS5560764A - Double mechanical seal - Google Patents
Double mechanical sealInfo
- Publication number
- JPS5560764A JPS5560764A JP13340978A JP13340978A JPS5560764A JP S5560764 A JPS5560764 A JP S5560764A JP 13340978 A JP13340978 A JP 13340978A JP 13340978 A JP13340978 A JP 13340978A JP S5560764 A JPS5560764 A JP S5560764A
- Authority
- JP
- Japan
- Prior art keywords
- seal
- fluid
- seal ring
- face
- ring
- 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
- Mechanical Sealing (AREA)
Abstract
PURPOSE: To prevent a seal-up fluid from leaking even if the pressure of the fluid becomes higher than that of lubricating liquid for a double mechanical seal, by making the outside diameter of a packing which supports a seal ring, larger than that of the seal-up end face of the seal ring.
CONSTITUTION: Two seal-up end faces S are provided between the external air and a seal box 1 connected to a casing of a fluid machine which contains a seal-up fluid L. The outside diameter of a packing 9 which supports a seal ring 8 movable in the axial direction is made larger than that of the seal-up end face S of the seal ring 8. Another seal ring 7 having another seal-up end face S is fixed not to move in the axial direction. An optional lubricating fluid Z is filled between both the seal-up end faces S. When the pressure of the seal-up fluid L becomes higher than that of the lubricating fluid L, the seal ring 8 is thrusted on the seal-up end face S of the other seal ring by the pressure of the seal-up fluid L.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13340978A JPS5560764A (en) | 1978-10-30 | 1978-10-30 | Double mechanical seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13340978A JPS5560764A (en) | 1978-10-30 | 1978-10-30 | Double mechanical seal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5560764A true JPS5560764A (en) | 1980-05-08 |
Family
ID=15104082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13340978A Pending JPS5560764A (en) | 1978-10-30 | 1978-10-30 | Double mechanical seal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5560764A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021028511A (en) * | 2019-08-09 | 2021-02-25 | イーグル工業株式会社 | Double mechanical seal |
-
1978
- 1978-10-30 JP JP13340978A patent/JPS5560764A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021028511A (en) * | 2019-08-09 | 2021-02-25 | イーグル工業株式会社 | Double mechanical seal |
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