JPS5576260A - Valve seat for steam valve - Google Patents

Valve seat for steam valve

Info

Publication number
JPS5576260A
JPS5576260A JP14794278A JP14794278A JPS5576260A JP S5576260 A JPS5576260 A JP S5576260A JP 14794278 A JP14794278 A JP 14794278A JP 14794278 A JP14794278 A JP 14794278A JP S5576260 A JPS5576260 A JP S5576260A
Authority
JP
Japan
Prior art keywords
valve
valve seat
ring
annular groove
valve casing
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.)
Granted
Application number
JP14794278A
Other languages
Japanese (ja)
Other versions
JPS5635783B2 (en
Inventor
Isao Fujita
Hajime Hirano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14794278A priority Critical patent/JPS5576260A/en
Publication of JPS5576260A publication Critical patent/JPS5576260A/en
Publication of JPS5635783B2 publication Critical patent/JPS5635783B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)

Abstract

PURPOSE: To prevent the valve seat from coming out of the valve casing by providing the ring shaped projection around the valve seat, the annular groove on the inner surface of the valve casing, and the outer ring and the lock ring in the annular groove.
CONSTITUTION: The ring shaped projection 9 is provided around the valve seat 1. The material of the valve seat 1 is austenite stainless steel of which coefficient of linear expansion is larger and high temperature-resisting characteristics are improved compared to those of the valve casing 2 of which material is low alloy steel to prevent relaxation of stress by creep in the high temperature atmosphere, and at the same time, mounting to the valve casing can be simplified. Furthermore, the outer ring 6 is fitted by clamping the projection 6a around the ring 6 in the annular groove 10 on the inside of the valve casing 2. The lock ring 7 to prevent the outer ring 6 from coming off is also fitted in the annular groove 10, and the valve seat 1 is fixed by welding both rings 6, 7.
COPYRIGHT: (C)1980,JPO&Japio
JP14794278A 1978-12-01 1978-12-01 Valve seat for steam valve Granted JPS5576260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14794278A JPS5576260A (en) 1978-12-01 1978-12-01 Valve seat for steam valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14794278A JPS5576260A (en) 1978-12-01 1978-12-01 Valve seat for steam valve

Publications (2)

Publication Number Publication Date
JPS5576260A true JPS5576260A (en) 1980-06-09
JPS5635783B2 JPS5635783B2 (en) 1981-08-19

Family

ID=15441540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14794278A Granted JPS5576260A (en) 1978-12-01 1978-12-01 Valve seat for steam valve

Country Status (1)

Country Link
JP (1) JPS5576260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114576413A (en) * 2020-12-02 2022-06-03 株式会社鹭宫制作所 Valve device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58103489U (en) * 1982-01-05 1983-07-14 日本電気株式会社 L type coaxial connector
JPH0237464U (en) * 1988-09-01 1990-03-12
JPH0330367U (en) * 1989-07-31 1991-03-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114576413A (en) * 2020-12-02 2022-06-03 株式会社鹭宫制作所 Valve device
CN114576413B (en) * 2020-12-02 2023-07-18 株式会社鹭宫制作所 Valve device

Also Published As

Publication number Publication date
JPS5635783B2 (en) 1981-08-19

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