VALVE HOUSING
The invention refers to a valve housing consisting of at least two T-pipes strutted with one another by Znganker.
From the German patent specification Nr.6923901 already a such valve housing follows to be familiar, which is compound from several prefabricated Gehäuseteilen and can depending upon need different Betriebsverhälmissen be adapted. A such valve housing exhibits laterally pipe unions, which with their passage strands escape-end are joined together. At the contact surfaces angeformte flanges are intended, which depress the Gehäuseteile to by holding together Zngankern are provided with drillings. A such housing is complicated developed thereby and in the form complex, required from there high precision on the Anlageseäte Flun. Because of the lateral pipe unions and the small number at tie rods, due to it, are only difficult such housings to seal.
Task of the invention is not it to create a valve housing of the initially mentioned kind more simply and more economically in the structure is and in the case of itself in the case of joining the Gehäuseteile sealing problems devoted.
This according to invention reached by the fact that T-pipes flangeless and to faces passage strand conical tapered trained are, and that interspersed clamping plates, from which at least carries a valve seat face the tapered faces of the Zngankern, which exhibit trained enular grooves to the conical tapered Stlrnseiten conformal. Hiebei can exhibit the tie rods within the range of the pipe unions latter circular zones comprehensive with play.
Apart from the fact that with the solution according to invention the task posed was solved in simple way to be made without impairing the variety of the design possibilities by variable building of the Gehäuseteile up, it is it possible, also a Ventälgehäuse of rustproof steel economically because the flangeless T-pipes permit also the non-cutting production in the die. Also valve housings of this kind can be made of glass or ceramic(s) economically. Particularly simply is the Abdichtnng of the Gehäuseteile against each other.
The special organization of the tie rods permits the arrangement of a larger number of tie rods and straight also the arrangement within the range of lateral pipe unions, to a range, which is particularly endangered with the initially described well-known article.
In the designs a remark example of the invention article described below more near is represented, whereby Fig.1 a valve in the profile, Fig.2 a valve toward the arrow A of the Fig.1 seen and Fig.3 a valve on average C - D of the Fig.1 shows.
With the represented valve housing, its valve covers --1-- at the housing --2-- , is the latter from two Gehäuseteilen designed as smooth tubing T-fittings is solvable screwed on --3, 4-- one between this arranged spacer plate --5--, a base plate --6-- and a cover plate --7-- built up. Furthermore twelve are on the extent distribute arranged, as screws --8-- with nuts --9-- trained tie rods intended, those in each case all Gehäuseteile --3 to 7-- and the VentildeckeI --1-- reach through and solvable hold together.
In one at the valve cover --1-- arranged handle --10-- is a screw drive --ll-- boltable stored, their upper end a many Kant --12-- for the port eh1 it handwheel od.dgl.
exhibits. Screw drive --11-- seizes by holes in the valve cover --1-- and in the cover plate --7-- and carries at the lower En& hurry a replaceable fastened valve disk --13--. This opposite is in the spacer plate --15-- a valve seat --14-- likewise replaceable arranged.
The valve cover --1-- still another Stopibuchse possesses --15-- to the sealing of the spindle by grasp.
In place of a Stopt'buchse --15-- also another well-known poetry could be arranged, e.g. a diaphragm seal.
To the achievement of pressure tight connections between the Gehänseteilen --3 to 7-- on the one hand and the housing --2-- and the valve cover --1-- on the other hand the Gehäuseteile have --3, 4-- to that the plates --5, 6, 7-- zngewandten faces veÜüngte conical ends --16-- and the plates --5, 6, 7-- this opposite according to formed enular grooves --17--.
Furthermore the valve cover has --1-- at that the plate --7-- turned side one according to the ends --16-- formed and limited ring rib --18--, those into an enular groove --17-- intervenes.
Perhaps it can be also favourable, in the enular grooves --17-- To arrange sealant.
Around also within the ranges that radially connecting pieces abstrebenden --19-- the Gehäuseteile --3, 4-- Screws --8-- arrange to be able, have these the connecting pieces --19-- with play embracing ring zones A dismountable valve assembly having a valve body made up of separately prefabricated tubular portions, a spacer plate containing a valve seat situated between each pair of adjacent tubular portions, cover elements covering either end of the valve, fastening bolts releasably fastening the tubular portions, their associated spacer plates and the cover elements, and a valve stem, carrying a valve disc. The valve stem extends through one of the adjacent tubular portions and is movably mounted so that its valve disc may alternately engage and disengage the valve seat of the spacer plate with which it is associated. I claim: 1. A disassemblable valve assembly, comprising: a. a housing including 1. at least two separately prefabricated tubular portions each defining a fluid flow passage and each having a pair of opposed, flangeless, conically ta- pered opening edge portions defining tongues, at least one of said portions being a T-shaped portion having an access sleeve located between said edge portions and defining a flow path into the nterior of said T-shaped portion, 2. a spacer plate disposed between said tubular portions, said spacer plate having a valve seat formed therein and defining a fluid passage between said tubular portions, 3. a base plate supporting at least one of said tubu- lar portions; and 4. said spacer plate and said base plate being formed with annular grooves on the sides thereof facing said tongues, said grooves and tongues having corresponding profiles; b. bolt means releasably fastening together said tubular portions, said spacer plate and said base plate with each said groove receiving and forming a fluid-tight seal with, a respective tongue, at least one of said bolt means comprising an annular member enclosing said access sleeve, said annular member and said sleeve defining in assembly a clearance space; and c. a valve stem mounted to extend in a sealing manner into one of said tubular portions, said valve stem including a valve disc engageable with said valve seat of said spacer plate. 2. A valve assembly as defined in claim 1, wherein said tubular portions have the form of tees. 3. A valve assembly as defined in claim 1, wherein said spacer plate and said base plate are provided with openings through which said bolts pass. 4. A valve assembly as defined in claim 1, wherein said base plate is at one end of said housing and further comprising a cover plate and bonnet at the other end of said housing adjacent one edge portion of one said tubular portion, said valve stem being mounted to said bonnet, and an annular groove is formed in said cover plate on the side facing its adjacent tubular portion, , said groove having a profile corresponding to that of said tongue at said adjacent tubular portion edge portion and forming a seal therewith. 5. A valve assembly as defined in claim 4, wherein said spacer plate, said base plate and said cover plate 6. have their annular grooves coaxially arranged and on both oppositely directed sides thereof the grooves on each plate having mirror image profiles. 6. A disassemblable valve assembly, comprising: 1. at least two separately prefabricated tubular T-- shaped pieces each defining a fluid flow passage and each having a pair of opposed, flangeless, conically tapered opening edge portions forming tongues, and an access sleeve located between said edge portions and defining a flow path into the interior of its respective tubular piece, 2. a spacer plate disposed between said tubular pieces adjacent one edge portion of each said piece, and two further plates each disposed adjacent the other edge portion of a respective one of said tubular pieces each surface of each said plate, which faces a respective tubular piece edge portion being provided with an annular groove located to mate with a respective tongue and having a profile corresponding to that of its associated tongue, each side plate having a plurality of bolt-receiving openings, and said spacer plate having a valve seat therein defining a fluid passage between the interiors of said tubular pieces; and b. bolt means passing through said openings and releasably fastening together said tubular pieces and said plates with each said tubular piece interposed between said spacer plate and a respective one of said further plates and with each said tongue in mating engagement with a respective groove to form a fluid-tight seal between each said tubular piece end portion and its adjacent plate. 7. A valve assembly as defined in claim 6, wherein certain of said bolt means comprises annular members, each of which encloses an access sleeve, each said annular member and its enclosed access sleeve defining n assembly a clearance space. 8. A valve assembly as defined claim 6, wherein said bolt means comprise assemblies of bolts and nuts which are in threaded engagement to press together the members which they fasten, said assemblies being distributed around the periphery of said housing. 9. A valve assembly as defined in claim 6 further comprising a valve stem mounted to extend in a sealing manner into one of said tubular portions, said valve stem including a valve disc engageable with said valve seat. 10. A valve assembly as defined in claim 9, wherein said tubular portions, pieces and said plates are arranged to be rotatable, and fixable, with respect to one another about an axis coaxial to the axis of said valve stem. 11. A valve assembly defined in claim 9, wherein one of said further plates is at one end of said housing and further comprising a valve bonnet to which said valve stem is sealingly mounted at the other end of said housng.