JPS6273176U

JPS6273176U -

Info

Publication number: JPS6273176U
Application number: JP16444085U
Authority: JP
Priority date: 1985-10-25
Filing date: 1985-10-25
Publication date: 1987-05-11
Anticipated expiration: 2000-10-25
Also published as: JPH0536156Y2

Description

[Brief explanation of the drawing]

第１図は本考案による高温対策をした延長ボン
ネツトバルブの一実施例を示した断面図、第２図
は第１図の要部拡大断面図、第３図イ，ロ，ハは
第１図及び第２図に用いた部品の説明図、第４図
イ，ロ及び第５図イ，ロは他実施例を示したもの
で、それぞれイは要部拡大断面図、ロはイに用い
た弁棒の要部側面図である。第６図は従来例を示
す断面図である。１…弁体、２，３…弁箱、９…延長ボンネツト
部、１０…グランドパツキン、１２…弁棒、１３
…リング、１４…分割リング、１５，１６，１７
…弁棒小径部、１８…リング。 Fig. 1 is a sectional view showing an embodiment of the extended bonnet valve with high temperature measures according to the present invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, and Fig. 3 A, B, and C are the Figures 4 and 5 are explanatory views of the parts used in Figure 2, Figures 4A and 2B, and Figures 5A and 5B show other embodiments, respectively. FIG. 3 is a side view of the main parts of the valve stem. FIG. 6 is a sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Valve body, 2, 3... Valve box, 9... Extension bonnet part, 10... Gland packing, 12... Valve stem, 13
...Ring, 14...Divided ring, 15, 16, 17
...Valve stem small diameter section, 18...Ring.

Claims

[Claims for Utility Model Registration] (1) An extension bonnet portion comprising an extension bonnet portion fixed to a gland flange of a ball valve, and a valve stem having one end engaged with the ball valve and penetrating the extension bonnet portion. One or two small diameter parts for fitting rings are formed at the valve stem position corresponding to the valve body side end of the valve body, and one or two collar-shaped parts are formed in this small diameter part.
The ring or split ring is fitted, and a certain small distance is maintained between the brim-shaped upper surface of the ring and the end face of the extension bonnet, and between the inner wall of the gland part and the outer peripheral surface of the ring or split ring, and An extended bonnet valve designed to prevent high temperatures by being formed to allow close contact at high temperatures. (2) An extended bonnet valve that takes measures against high temperatures according to claim 1 of the utility model registration claim, wherein the diameter of the valve stem from the small diameter part for ring fitting to the gland part side is smaller than the diameter of the valve stem on the extended bonnet insertion side. (3) An extension bonnet valve that takes measures against high temperatures as set forth in claim 1 of the utility model registration claim, in which the diameter of the valve stem from the small diameter part for ring fitting to the gland part and the diameter of the valve stem on the extension bonnet insertion side are made the same. (4) Utility model registration claim 1, in which the outer peripheral surface of the ring is formed into a tapered shape, and the end surface of the extended bonnet portion corresponding to the tapered surface is formed into a tapered shape.
Extension bonnet valve with high temperature measures as described in section. (5) The extended bonnet valve which takes measures against high temperatures as set forth in claim 1 of the utility model registration claim, in which a ring and a split ring are fitted into the small diameter portion for fitting the ring, and the split ring is arranged on the valve body side. (6) An extended bonnet valve with measures against high temperatures as set forth in claim 1 of the utility model registration claim, in which only one split ring is fitted into the small diameter portion for fitting the ring.