STRAND FLOW CONTROL VALVE.

The invention concerns a strand flow control valve in the generic term of the requirement 1 indicated art.

A such strand flow control valve, which in größ ere Warmwasserheizungsanlagen is inserted, and with which in the individual line strands the quantity of water and the differential pressure can be stopped, it is well-known from the EP-A-0 153,427.

Here the Anschlu&szlig flows; connecting piece for the admission of a Druckmeß mechanism, which is intended for the measurement of the medium printing in direction of flow behind the valve seat, behind the valve seat and close its into the housing passage channel in. Furthermore the delta of the aforementioned Anschlu&szlig aims; connecting piece in for instance to the valve seat, from which in the case of opened valve seat obviously influences of the flow characteristic result. Here turned out, daß by means of the inserted Meß mechanism determined values for the pressure loss of the valve with actually entering pressure loss of the valve within the piping do not agree. A further disadvantage from the EP-A 0153 427 of well-known strand flow control valve consists of it, daß one ordnungsgemäß e arrangement of the strand flow control valve only in the advance of a flow circle is possible, there only then with the correct incident flow of the strand flow control valve of the Anschluß connecting piece for the filling and emptying mechanism in direction of flow behind the poppet is arranged. The topographical arrangement in the return of this flow circle is not possible, because then the connecting piece is arranged for the admission of the emptying and/or filling mechanism in direction of flow before the valve body, if the valve is built in wrong direction of flow. In this case from it in addition, substantial, unwanted influences of the flow characteristic result.

Task of the invention is it now, a strand flow control valve in the generic term of the requirement 1 indicated kind, in particular while maintaining the advantages already reached, which consist among other things of it, daß all connecting pieces, which are necessary for the operation of the strand flow control valve, of the same side ago comfortably accessible and readable are to be improved, in such a manner, daß it both in the advance and in the return strand of a flow circle in correct position to be built can do, and nevertheless those ordnungsgemäß e emptying and filling the flow circle are made possible. The solution of this task is characterized, da&szlig by it; both Anschluß connecting piece about resembles Durchfluß cross sections exhibit, which are so limited, daß both alternatively as filling and emptying connecting pieces usable are, whereby in the advance strand of a flow circle the filling and the Entleerventil with the Anschlu&szlig in direction of flow behind the valve seat; connecting piece and in the return strand the filling and Entleerventil with the Anschlu&szlig in direction of flow before the valve seat; connecting piece is connectable.

By those erfindungsgemäß e training is reached, daß to both Anschluß connecting piece alternatively the filling and emptying device to be attached can, so daß the arrangement of the strand flow control valve in the flow circle of the withdrawal and/or filling possibility is independent. By this training is guaranteed, daß the strand flow control valve both in the advance and in the return of a flow circle to be in correct position and aerodynamically cleanly arranged can, whereby nevertheless filling and emptying ordnungsgemäß to be accomplished can.

Remark examples of the invention are represented and in the following more near described in the designs.

It shows:

Fig. 1

a strand flow control valve in the profile;

Fig. 2

in the same way gemäß the line II-II of the figure 1 seen;

Fig. 3

a variant likewise in the profile;

Fig. 4

in the same way according to the line IV-IV of the figure 3 seen;

Fig. 5

an example of use schematically represented.

A valve housing 1 is common to the remark examples with an inlet connecting piece 2, flanged sockets 3 and three further connecting pieces 4, 5 and 6. All connecting pieces 2 to 6 are angeformt at the valve housing 1. Furthermore the connecting pieces are 4 to 6 in a common level and from the same long side of the valve housing 1 crosswise abstrebend arranged.

In the connecting piece 4, whose longitudinal axis crosses the longitudinal axis of the expiration connecting piece 3 in an angle of for instance 45°, a valve upper section 7 is dichtschließ end screwed in. In the latter a spindle 8 is arranged, those at an end one handles 9 and at the other end a Verschluß body 10 carries. The latter works Schlie&szlig to open and; EN of the valve with a housing-firm valve seat 11 together.

The connecting piece 5 is for the admission of a not represented Druckmeß mechanism determines. In the connecting piece 5 also still another a filling and Entleerventil can be inserted. The connecting piece 6, which leads into direction of flow of the medium before the valve seat 11 the passage channel 12 of the valve housing 1, is for the admission of a further Meß mechanism determines. Also in this connecting pieces a filling and a Entleerventil can be used. Both connecting pieces 5.6 have about resemble Durchfluß cross section. The connecting piece 5 flows to 11 arranged channel 13 into in direction of flow of the medium behind the valve seat, that around the valve upper section the 7 is led around and at that the connecting piece 5 turned away side and to the discharge connecting piece 3 aiming out-flows. In the figures 1 and 2 the channel 13 is formed in the connecting pieces for the 4 by one in the valve upper section 7 angeformte, circulating gutter 14 and by the smooth drilling of the connecting piece 4, during with the strand flow control valve the gutter 14 shown in the figures 3 and 4 in the valve housing 1 angeformt is dichtschlie&szlig and the latters by; end to decisive part of the valve upper section 7 to a channel 13 is supplemental.

Auß erdem openings 15 and 16 are intended in the valve housing 1.

The opening 15 connects 5 with the channel 13 to the connecting pieces, while the opening 16 outgoing from the channel 13 flows into the part of the passage channel 12 present behind the valve seat 11 and to the Anschluß connecting piece 3 purposefully as well as close its is arranged.

In the figures 1 and 2 is that the Verschluß body 10 turned final part of the valve upper section by means of an O-ring 17 sealed, during in the figures 3 and 4 the aforementioned final part with detention seat and at least approximately dichtschließ end is inserted.

The connecting pieces 2 and 3 are to each other coaxial running arranged. The longitudinal axis of the opening 16 cuts the longitudinal axis of the discharge connecting piece 3 in an angle of for instance 45°.

Gemäß Fig. 1 are sections of the Anschlu&szlig the leading into the housing channel 12; connecting piece 5.6 to the longitudinal extending of the housing channel of preferential way right-angled arranged arranged, over for the falsification of the Meß rate prominent cross-flows to avoid.

In Fig. 5 the strand flow control valve is gemäß the invention in the respective installation situation in the left-lying strand 1 represented, during state of the art gemäß EP-A-0153 427 in the strand right-present 2 is explanatory. By those erfindungsgemäß e training of the Anschluß connecting piece 5 and 6, those about resembles Durchfluß cross sections exhibit, are it possible, as represented in strand 1 to build both valves in correct direction of flow all the same whether the installation takes place in the advance or in the return. The flow characteristic and noise creation of the valves are thus wunschgemäß reached and/or prevented. Depending upon installation position the Anschlu&szlig becomes alternative; connecting pieces 5 or the Anschluß connecting piece 6 for the employment of the filling and emptying valve used.

With the execution form gemäß Strand 2, which corresponds to the state of the art, is to be built the strand flow control valve only in the advance in correct position, during it in the return against the actually wished direction of flow to be built muß , if the emptying and filling are to remain possible. This is necessary for the reason with the state of the art, because the emptying mechanism is connectable only with the one both the connecting piece, which sits in normal direction of flow behind the valve body.

This arrangement is unfavorable, which disadvantage was eliminated by the invention. In contrast to the execution form represented in the design it is also possible, the valve with valve upper section 7, spindle 8, handles 9, Verschluß body 10 and valve seat 11 not as oblique-seated valve to train but as degree poppet valve.

Also with it those is erfindungsgemäß e favourable effect by the constructional Maß took gemäß To reach proposal of the invention. Further it is favourable depending upon assembly, place and accesibility, if one in the requirements of the 2 to 5 designated further educations is realised. So can for example with the remark example gemäß Figure 1 the connecting piece 5 from level around a certain angle position, formed by the connecting pieces the 2, 3, 4 and 6, shifts arranged its, just as this would be possible for the connecting piece 6. Thereby the favourable installation way of the strand flow control valve was not impaired. Further it is possible, daß both Anschluß connecting pieces 5 and 6 between the inlet connecting piece 2 and the Anschluß connecting pieces 4 are arranged, as this is explanatory in the design figures 1 and 3. The connecting piece 5 is to be only connected to flanged sockets 3 area present with a ring circuit or in other way with between the valve seat the 11 and that. Of course it would be also possible, the Anschluß connecting pieces 5 and 6 between the Anschluß to arrange connecting pieces 4 and the expiration connecting piece 3, whereby then the connecting piece would be to be connected 6 by an appropriate line connection with the area between inlet connecting pieces 2 and valve seat 11.

Also the arrangement in the way, daß the Anschluß connecting piece 6 between inlet connecting pieces 2 and Anschluß connecting piece 4, the Anschluß connecting piece 5 however between Anschluß connecting piece 4 and flanged sockets 3 would be arranged, are possible and depending upon installation conditions favourable. The invention is limited not to the remark examples, but in the context of revealing often variable.