JPS58138865U

JPS58138865U - Eccentric butterfly valve

Info

Publication number: JPS58138865U
Application number: JP3654482U
Authority: JP
Inventors: 足立　邦成
Original assignee: Individual
Current assignee: Individual
Priority date: 1982-03-15
Filing date: 1982-03-15
Publication date: 1983-09-19

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]

第１図は、本考案に係る偏心型バタフライ弁の構造を示
す縦断正面図。第２図は、向弁に使用される弁座環の縦
断正面図。第３図は、その側面図。第４図は、各部品の位置関係を示す概略図。第５図は、
−次偏心型バタフライ弁の一例構造を示す概要図。、第
６図は、二次偏心型バタフライ弁の一例構造を示す概要
図である。１・・・・・・偏心型バタフライ弁、２・・・・・・弁
箱、３・・・・・・弁座台、４・・・・・・円錐座面、
５・・・・・・弁棒、６・・・・・・弁体、７・・・・
・・弁座環、８・・・・・・円錐座面。第１図第４図FIG. 1 is a longitudinal sectional front view showing the structure of an eccentric butterfly valve according to the present invention. FIG. 2 is a longitudinal sectional front view of a valve seat ring used for a facing valve. Figure 3 is its side view. FIG. 4 is a schematic diagram showing the positional relationship of each component. Figure 5 shows
- A schematic diagram showing an example structure of an eccentric butterfly valve. , FIG. 6 is a schematic diagram showing an example structure of a secondary eccentric butterfly valve. 1...Eccentric butterfly valve, 2...Valve box, 3...Valve seat base, 4...Conical seat surface,
5... Valve stem, 6... Valve body, 7...
... Valve seat ring, 8... Conical seat surface. Figure 1 Figure 4

Claims

[Scope of utility model registration request]

A cylindrical valve body 2, a valve seat base 3 provided on the inner circumference of the valve body 2 and perpendicular to the center line U of the valve body, and a valve seat base 3 formed on the inner circumference of the valve seat base 3 with the apex O on the downstream side and the valve base Based on an imaginary cone located below near the box center line U, whose cone line ■ is inclined by a minute angle α from the valve box center line U (the conical seat surface 4 and the upper inclination line W of the conical seat surface 4) A perpendicular line Y perpendicular to the upper downstream end A
The valve body 2 rotates at an eccentric position Q that is downstream of the vertical line Z that is perpendicular to the lower upstream end B with respect to the lower inclined line A valve stem 5 that freely extends through the valve stem 5, a disc-shaped valve body 6 fixed to the valve stem 5, a conical valve seat ring 7 that is detachably attached to the outer periphery of the valve body 6, and An eccentric butterfly valve comprising a conical seat surface 8 formed on the outer periphery of an outer periphery 7 of a seat ring 7 and adapted to the conical seat surface 4 of the valve seat base 3.