DE1921896A1 - Throttle valve or slide with a sealing insert - Google Patents

Description

Applicant Sne TORMENE Impianti Industriali

Title

Throttle valve or slide with a steel insert

description

The invention relates to a throttle valve "or a throttle valve with a sealing insert. Ι ■

A throttle valve or a throttle slide is used in technology known as a reducing or shut-off device for an 'annular Management. This consists essentially of a lenticular body, which is in a fixed, in a line built-in housing and adjustable from the outside

Usually the flap or slide is made of metal Material. As a result, even if the contact surfaces are carefully machined, it is difficult to obtain a to ensure complete sealing of the organ, especially when the medium is gaseous «

909883/1146

Bs are embodiments known in which the lens to Avoiding this disadvantage is equipped with one or two annular rubber seals.

To attach the seals, however, the lens must consist of several interconnected parts, which is what the assembly difficult and the manufacturing costs increased.

In the throttle valve according to the invention, the seal achieved by means of an annular sealing insert attached to the stationary housing, the 3-shape and structure of the most sensitive part of the valve. Lens not affected.

This simplifies the construction of the flap and you Price reduced.

The invention contains another innovationί the thickness: i ^ r * insert also encloses the axis of rotation of the lens, wodurcl, the sealing of the flap to the outside is ensured and a stuffing box usually used for this is saved can be.

Finally, as described below, the Fold the possibility of the degree of compression of the

909883 / VU6 -3- .....

Λ φ 4

Diohtungseinlage eur effect of the seal comfortably adjust.

The invention is shown in the drawing, for example. Show it

1 shows a cross section through a flap and its lens

is in its open position; 2 shows a longitudinal section through the flap of FIGS. 1 and 2 Fig. 3 to 8 possible cross-sectional shapes of the annular Sealing insert for a use appropriate to the pressure inside the line.

The fixed housing is supported by two outer flanges 1 and 2 for connection to pipe sockets and formed by two rings 3 and 4 · The latter lie against one another and are by means of suitable screws connected together (Fig. 2).

In the ring 3 are «white extending in the radial direction, semi-cylindrical recesses provided · These form together with a similarly shaped and arranged Recess in the ring 4 supports for parts 5 and 6 of a die Lens 7 supporting shaft.

In the rings 3 and 4 there is also an annular recess for receiving an annular sealing insert 8

909883 / 1U6 ~ ⁴ * "

IHSPHCTED

intended. This recess has such a shape that it; : the inner edge of the sealing insert 8 can protrude into the interior of the flap. In the sealing insert 8 lies, the lens 7 then when it is in its closed position.

The sealing insert 8 has two each from its outer one Breakthroughs for the implementation of the shaft 5, 6 extending in its inner area. In the outer mouth area of these openings, the sealing insert 8 is provided with a tubular extension 9 or 10, respectively. Enclose this the shaft parts 6 and 5 and thus effect the sealing of the flap to the outside.

The shaft parts 5 and 6 are so to speak in one each in the bearings 3 and 4 carried out, with between the shaft parts and the recesses in the rings a sleeve 11 or 12 is provided. These sleeves 11 and 12 lie at one end on the tubular extensions 9 and 10 of the sealing insert 8 and at the other end to fastening plates 13 and H. These mounting plates 13 or 14 are fastened to the outer area of the rings 3 and 4 with screws or 20 'and can thus be adjusted or adjusted. As a result can the mounting plate 13 by tightening the Screws 20 adjusted in the direction of the inside of the flap

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and thereby the sealing insert 8 compressed by means of the sleeve 11 by which: the seal is improved

The same also applies to the fastening plate 14. This also has a bore for the passage of the shaft part 5 outwards on «

A sleeve 15 for controlling the flap is attached to the shaft part 5, which can only be seen in the section of FIG.

The sleeve 15 is with a locking device in the mold a pin 16 emitted into the head of the hexagon socket screw 20 'to lock the Plate H engages. In this way the locking of the Secured flap in its open or closed position.

Of course, the shaft member 5 with any device for controlling the adjustment instead of a manual m handle for manual operation be connected.

The invention is not limited to the use of the materials mentioned, limited certain dimensions and the shown cross-sectional shapes of the sealing insert.

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Claims (9)

Claims ί1.! Throttle valve or slide with a sealing insert, ' characterized in that a fixed part in which a lens (7) is rotatably arranged essentially consists of two rings (3, 4) which are placed between two connecting flanges (1 , 2) are arranged for a line, and the rings (3 _f 4) each have two radially extending, semi-cylindrical recesses for receiving a shaft (5 »6) carrying the lens (7) and an annular recess for receiving an annular one Have sealing insert (8) which protrudes into the interior of the throttle valve or the slide to support the outer edge of the lens (7) in its closed position 2. Throttle valve according to claim 1, characterized in that the sealing insert (8) with two openings each extending from its outer to its inner area for receiving the shaft (5, 6) carrying the lens (7) and further with two tubular lugs ( 9, 10) is provided, which enclose the shaft (5 »6) for sealing against the external atmosphere. "" --- 3. A throttle valve according to claim 2, characterized _{in that the shaft (5 t} 6) carrying the lens (7) is supported in the rings in the form of semi-cylindrical recesses -2-909883 / 1U6 (3, 4) is held by the interposition of two ' Sleeves (11, 12) are mutually set in the correct position, .lind these sleeves (11, 12} at one end .. the tubular extensions (9, 10) of the sealing insert (8) and at its other end, if necessary, by means of two intermediate bearing journals on two mounting plates (13, 14), which are arranged diametrically to one another on the outer region of the two rings (3, 4). 4. Throttle valve according to claim 5, characterized in that "the two mounting plates (13, 14) are adjustably attached to the hangers (3, 4) by means of screws (20, 20 ') and together with these form the fixed part of the throttle valve that the compression of the annular sealing insert (8) can be regulated by means of the screws (20, 20 ”). 5 x throttle valve according to claim 3, characterized in that a fastening plate has (eg 14) has a bore for the i implementation of the outer end of the shaft part (5) of the lens (7) to which an actuating element (15) for the. Lens (7) is attached. 6 »Throttle valve according to claim 5, characterized in that the actuating element (15) has a pin (16) which is in a fully open or open position. Closed position of 9 0 9 S 8 3/1 U 6 " ³ " BATH ORIGINAL, -r- t Lens (?) By means of a hexagon to the head of the screws (20 ¹ ) of the associated mounting plate (H) for the purpose of Arre orientation of the lens (7) can be assigned. 909383/1 U6 Blank page