DE1775710A1 - Valve combination - Google Patents

Description

Ε =; ·; ■! ■:; ■ LOIiEN .: '■'

L- ... ■ Kü SEIL) LER

MARGRlT SEIDLER 177Ε; 71Π

LAWYERS Ϊ // 0 / 1U

fs M υ π che r. 22 - ¹ I? C- f'V ·>

». ·! > f j .. (03 11} 29/194

Aktiebolaget Värgarda Armaturfabrik, kk-O 20 Värgärda, Sweden.

Valve combination .

When connecting a water line to pipeline systems or hot water boilers and other devices where a backflow from the connected unit can be feared, the waterworks in question usually requires that the connection is via a shut-off valve or a non-return valve and, if necessary, a vacuum valve and safety valve should take place. For several years there has been a co-ordination on the market called a valve tube, in which those four valves form a unit. The shut-off valve and the non-return valve are housed one behind the other in a common tubular valve housing, which is formed behind the non-return valve on the other side with a connector for connection to the vacuum valve and the safety valve. The seats dos shut-off valve and the uiokschlagvontiLc 'in commonly Vor.vilgehäuse are provided in an axial plane in the tubular valve housing, which means that the water which VenLi .guhäuso repeatedly is gazwungen at flow dur ^, its Strömun;! .- direction suddenly to change. Dion has the consequence that the bokart, i ViiritLliii hr has a large flow resistance and disturbs. .. ίο Goräiujche causes.

The purpose of the invention is dio Boneituij! »Üj-'ü · According to t '.'i. ■. i.

I 0 a 8 1 / / 0 5 3 0

6AD

*. 17757ίϋ

This has been achieved by arranging the seat of the shut-off valve in a manner known per se at an angle to the axis of the valve housing and choosing a vertically raised flap valve as the check valve. The result of this arrangement is that the water flowing through the valve tube is only negligible. Changes in direction, which also means that annoying noises are practically eliminated. Further, the tubular valve housing can be formed as previously ■ ¹ with substantially smaller length. "The length of the valve housing is reduced to a minimum if, as in a particularly useful P embodiment, the connecting pieces for the connection to the vacuum valve and safety valve are mainly shifted 90 ° to each other radially, and are arranged as close to each other in the axial direction as possible.

Other features and advantages of the valve tube according to the invention emerge from the following description of a preferred embodiment, with reference to the enclosed Drawing.

With 10 it is referred to as a short one. Pipe-made valve housing, with 11 the shut-off valve and with 12 the check valve. The seat 13 of the valve body 15 for the shut-off valve 11, which is seated at the end of the valve spindle I ¹ +, forms an acute angle with the axis of the valve housing and is formed at the end of a passage 16 which tapers conically from the inlet end of the valve housing, the axis of which is only insignificant ⁷ Air axis of the valve housing ^; needed. The check valve 12 is of a flap type. The seat l ^r / the flap 18, iio is suspended above pivotable about the ilofisontal axis 19, i .gtin one

109837/0530 "

Sad original

Plane that coincides with a diametrical plane to the valve housing or almost collapse. In the drawing, the. Valve flap " in an open position with solid lines, un in a closed position shown with dash-dotted lines. Behind the shut-off valve is the valve housing with a connector 20 for connection to a Safety valve provided. That connection piece lies in the same axial plane as the connection piece for receiving the valve spindle of the Shut-off valve essentially just in front of the same.

Behind the check valve, the valve housing has two stubs 21 and 22 which are formed in front of one another and which are in one Radial plane that forms a right angle with the radial plane through the connection piece 20.

As is readily apparent from the drawing, flows the water without sharp changes of direction through the valve housing, which means that there are no disturbing noises and a low flow resistance is achieved. This urges you also the small length of the valve housing common to the shut-off valve and the check valve.

The erfindungegemässe valve combination may, of course, for other fluids than water, eg oil, come to be used (. Further, structural changes within the scope of the inventive idea are conceivable.

10983 7/0 5 30

Claims (2)

Patent claims 1. Valve connection for connecting a water pipe or the like. is formed on piping systems for hot-water boilers or other equipment consisting of a shut-off valve and a check valve with a common tubular valve housing} optionally substituted with nozzles for "Connecting to ain vacuum valve and a safety valve, dadurc h in that the Sits of the check valve to the axis of Vontilgehäuses tends and that the check valve consists of a flap valve with a vertically or initially vertically suspended valve flap, 2. Valve combination according to claim 1, in which the for the shut-off valve and the check valve share a valve housing with nozzle for connection to vacuum valve and safety valve is formed, characterized chnet geken nzei that the dandies for Connection to the safety valve and vacuum valve in radial planes ) that form a right angle with each other. BAD ORIGINAL 1098 3 7/0530.