JPH02127862U

JPH02127862U -

Info

Publication number: JPH02127862U
Application number: JP3781789U
Authority: JP
Priority date: 1989-03-30
Filing date: 1989-03-30
Publication date: 1990-10-22

Description

[Brief explanation of drawings]

第１図はこの考案に係るプラグバルブの一部切
欠正面図、第２図は同上におけるプラグの全開状
態を示す正面図、第３図は同全閉状態を示す正面
図、第４図は同上の横断平面図、第５図は従来の
プラグバルブを示す一部切欠正面図である。１１……バルブ本体、１２……テーパ孔、１３
，１４……通路、１５……プラグ、１６……貫通
孔、３１……シールリング。 Fig. 1 is a partially cutaway front view of the plug valve according to this invention, Fig. 2 is a front view showing the plug in the fully open state, Fig. 3 is a front view showing the plug in the fully closed state, and Fig. 4 is the same as above. FIG. 5 is a partially cutaway front view showing a conventional plug valve. 11...Valve body, 12...Tapered hole, 13
, 14... passage, 15... plug, 16... through hole, 31... seal ring.

Claims

[Scope of utility model registration request]

A taper hole and a passageway opening on both sides of the taper hole are provided in the valve body, and a through hole is provided in a plug that is rotatably inserted into the taper hole, and the through hole is opened by rotating the plug. In a plug valve configured to communicate and cut off passages on both sides, the opening of the passage is placed on both sides of the outer peripheral surface of the plug at a position facing the opening of the passage when the plug is in a fully closed state. A plug valve characterized by a hardened alloy seal ring that slides around the part.