JPS5524253A - Valve device - Google Patents
Valve deviceInfo
- Publication number
- JPS5524253A JPS5524253A JP9739678A JP9739678A JPS5524253A JP S5524253 A JPS5524253 A JP S5524253A JP 9739678 A JP9739678 A JP 9739678A JP 9739678 A JP9739678 A JP 9739678A JP S5524253 A JPS5524253 A JP S5524253A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- stem
- valve seat
- velocity
- enthalpy
- 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)
- Details Of Valves (AREA)
Abstract
PURPOSE: To prevent the production of noise by providing multiple grooves in the fluid flow direction to the outer circumference of the valve stem inserted in the valve seat to make the change of enthalpy of fluid uniform.
CONSTITUTION: The valve stem 3 is put in the cylindrical valve seat 2. The stem is provided with a conical surface a which cooperates with the conical face of the seat in cutting off the steam flow, multiple grooves b which are spirally formed on the outer circumference of cylinder, and a guide face c which contacts with the valve seat to prevent the vibration of the stem. The groove is formed so that its cross-sectional area is made gradually greater according to the volume change depending on the pressure change of flowing fluid to make the velocity of fluid constant. Thus the fluid flows on expanding itself with a constant velocity, and is gradually decompressed. Since the fluid flows at a controlled velocity and its enthalpy is uniformly changed, the production of noise and flashing can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9739678A JPS5524253A (en) | 1978-08-11 | 1978-08-11 | Valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9739678A JPS5524253A (en) | 1978-08-11 | 1978-08-11 | Valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5524253A true JPS5524253A (en) | 1980-02-21 |
Family
ID=14191348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9739678A Pending JPS5524253A (en) | 1978-08-11 | 1978-08-11 | Valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524253A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819775A (en) * | 1996-10-10 | 1998-10-13 | Parker & Harper Companies, Inc. | Low flow rate valve |
| WO2001023791A1 (en) * | 1999-09-28 | 2001-04-05 | Fukuda Industrial Co., Ltd. | Low frictional heat control valve |
| JP2007500329A (en) * | 2003-05-30 | 2007-01-11 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Control valve trim |
| WO2008146467A1 (en) * | 2007-05-24 | 2008-12-04 | Front Co., Ltd. | Flow control valve, dial position deciding scale for the flow control valve, dial position deciding device, dial position deciding program, and storage medium stored with the program |
| JP2015105715A (en) * | 2013-11-29 | 2015-06-08 | 株式会社テージーケー | Stepping motor drive-type control valve |
-
1978
- 1978-08-11 JP JP9739678A patent/JPS5524253A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819775A (en) * | 1996-10-10 | 1998-10-13 | Parker & Harper Companies, Inc. | Low flow rate valve |
| WO2001023791A1 (en) * | 1999-09-28 | 2001-04-05 | Fukuda Industrial Co., Ltd. | Low frictional heat control valve |
| JP2007500329A (en) * | 2003-05-30 | 2007-01-11 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Control valve trim |
| JP4644674B2 (en) * | 2003-05-30 | 2011-03-02 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Control valve trim |
| WO2008146467A1 (en) * | 2007-05-24 | 2008-12-04 | Front Co., Ltd. | Flow control valve, dial position deciding scale for the flow control valve, dial position deciding device, dial position deciding program, and storage medium stored with the program |
| JP2015105715A (en) * | 2013-11-29 | 2015-06-08 | 株式会社テージーケー | Stepping motor drive-type control valve |
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