JPS5952279U

JPS5952279U - ball valve

Info

Publication number: JPS5952279U
Application number: JP14706582U
Authority: JP
Inventors: 萩原　光一
Original assignee: 株式会社北沢バルブ
Priority date: 1982-09-30
Filing date: 1982-09-30
Publication date: 1984-04-06
Also published as: JPS6317900Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示したもので、第１図は本考
案におけるボールバルブの縦断面図、第２図は第１図の
シートリテーナ部分を示す拡大断面図、第３図は第２図
におけるバルブの緊急密封状態を示す断面図、第４図は
第３図の部分拡大間第５因イ〜へはシールリングの他側
をそれぞれ示した断面図である。１・・−ボデー、３・・・貫通孔、４・・・ボール、５
・・・シートリテーナ、６・・・ボールシート、７・・
・段部、７ａ・・・平行部、７ｂ・・・側面部、７Ｃ・
・・テーパ面部、８・・・段差部、９・・・空間、１０
・・・金属製シールリング、１３・・・スプ１ｊング機
構、１５〜２０・・・金属製シールリング。The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal cross-sectional view of a ball valve according to the present invention, FIG. 2 is an enlarged cross-sectional view showing the seat retainer portion of FIG. 1, and FIG. 2 is a sectional view showing the emergency sealing state of the valve, and FIG. 4 is a partially enlarged sectional view showing the other side of the seal ring in FIG. 3. 1...-Body, 3... Through hole, 4... Ball, 5
...Seat retainer, 6...Ball seat, 7...
・Stepped part, 7a...Parallel part, 7b...Side part, 7C・
...Tapered surface part, 8...Step part, 9...Space, 10
...Metal seal ring, 13...Spring mechanism, 15-20...Metal seal ring.

Claims

[Scope of utility model registration request]

(1) A ball having a through hole is rotatably provided in a valve body, a seat retainer is provided between the body and the ball, a ball seat is attached to the seat retainer to make sealing contact with the ball surface, and a ball seat is installed in the body. In a ball valve in which a seat retainer can be freely pressed in the ball direction by an attached spring mechanism, a space is formed in a part of the contact surface between the outer circumferential surface of the seat retainer and the inner circumferential surface of the body, and a metal A ball valve characterized by being equipped with a seal ring.

(2) The ball valve according to claim 1, wherein the space is constituted by a stepped portion formed on the outer circumferential surface of the seat retainer and a stepped portion formed on the inner circumferential surface of the body.

(3) The ball valve according to claim 2, in which the stepped portion of the seat retainer is comprised of a parallel portion formed parallel to the fluid direction and a side surface portion formed perpendicular to the fluid direction.

(4) At the intersection of the parallel part and the side part formed on the stepped part,
The ball valve according to claim 3, which is a registered utility model, and has a tapered surface portion having a tapered angle that widens outward along the ball side direction.