DE1650055C3 - Two-part rigid tapping saddle with a branch nozzle - Google Patents

Description

rigid £ £ ^ toS ^ ά ^^^

ift.ϊ) £ ΑΪ S, ^{W is not} exposed to apparent compressive forces

paraÄrTauie _n SSibÄ SL "^" ^ Dk the geometric arrangement of the discontinuous, high-curved running in the shorter side wall of the line is extremely detrimental to the parts of the deiASShtSrpers (44). Handling unequal or unbalanced

4 two-part ^ sZ, tapping clamp according to An Forces, whereby strong tension loads.

has elliptical shape, which is based on the connection with clamp designs of known type

bore (42), with its shorter end this state of tension was aggravated by the fact that the opposite side parts stood, that the areas of the weakened at the points (Q 1 and Q 2) of the edge of the part, which are outside of the seal the connecting bore (42) and in all the other sections (and on which only the internal pressure acts), neither elliptical sections up to the essential surface areas have, which are opposite the apex a greater distance above the upper half of the clamp, as well as through from the edge of the connecting bore (42) Open the fact that the entire surface area of the i _{st we} facing bottom 60 Schellenhalfte.

The invention is therefore based on the object

to create a seal for tapping saddles that

brings about a pressure equalization on parts of the main pipe at the branch and the same case

The invention relates to a two-part, rigid anchoring of the main pipe after the branch-off clamp has been attached, as permitted in the preamble of claim 1 as the hulking main pipe This object is described according to the invention by the

In all known tapping saddles is achieved by characterizing features of claim 1.

3 4

The present invention has been substantially improved and the inside diameter of the conduit has been improved

Tapping saddles, in which the sealing body talks so. Furthermore, the shape of the elastic egg

it is shown that the areas of the weakened part, sealing body 44, which is attached to a

which are exposed to the internal pressure, area 46 of the saddle body is applied and which;

are moderately smaller than before. The on the schwäc'a- 5 by the clamping effect of the upper and lower

th section acting compressive forces are thus clamp halves somewhat against the outer surface of the dei

kept to a minimum, thereby squeezing the conduit conduit. The surface 46 is relative

can withstand considerably higher pressures than the surrounding surface 47 slightly cut

it was previously possible with known embodiments with the help of a connecting wall 47 a, which

was. ίο carries the sealing body, is avoided that

Further advantageous designs of the applicant due to the pressure of the medium towards the outside

subject matter are shifted in the subclaims. In this embodiment of the invention

indicates that the sealing body 44 is endless, of cylindrical

The invention is based on the drawing in Drische form and solid. It works like a U-seal

wrote 15, to the extent that the pressure of the

F i g. 1 is a side view of a built-erfrn- diums against the wall 47 is pressed and the α dungsgciiiäßen tapping clamp. This clamp provides a sealing effect between the upper clamp and an offset connection, the inner half of which is reinforced with the pipe,
The line along the sealing body at which speaks; 30 the pressure of the medium on the upper half of the housing

F i g. 2 is a side sectional view of the tapping cannot attack, usually as a sealing

clamp according to Fig. 1, in which the arrangement of the device limit is indicated, is normal-

Sealing body, the connection hole and the deflector near the inner edge of the sealing body

branch passage are shown; pers. The sealing body is preferably as

F i g. Fig. 3 is a sectional view of the assembly of a rubber or rubber-like material

F i g. 1 and 2 of line 3-3 in FIG. 1; with a Shoie shepherd π made about 75 to 80.

F i g. 4 is a perspective view of the sealing body near the edge of the port or

pers alone, whereby the position is shown, in which immediately next to it, the sealing body detects

rather this on the surfaces of the upper clamp half F i g. 1 to 5 a pair stretches around the circumference

is applied; 30 kender webs or web parts 48 through which the

5 is a perspective view of the lower sealing boundary regions in parallel planes 50

Clamp half, with an elastic pad to be guided in his. These run perpendicular to the axis

Normal position is shown, while the other pole- 36 of the line and as close as possible to the tip

ster in the position removed from the normal position to set points 52 on the opposite sides of the

hen is; ₃₅ Bore 42. When the sealing body passes through the

F i g. Figure 6 is a view showing the clamp clamping action of the two surrounding the conduit

and valve assembly shown after a housing half is compressed will be

Diversion line was connected. circular cross-section somewhat flattened so that

In the drawings, FIG. 1 and 2 show a section of a line 10 that is correct for the sealing edge by the points P 1 and P 2. At 40 on surface 46 near the edge of the opening of tube 10 is a branch at 27. The aid of the tapping saddle according to the invention extends from these points to leg parts 47 running around the circumference. This tapping saddle consists of two metal housing halves 12 and 14 separated at the bottom along the opposite sides, each with the line up to a height which is slightly above a support or saddle part 16, 18. The support 45 is a middle level (Fig. 3) lies. This plane part of the tapping clamp is curved, surrounds one runs in the axis 36 of the line and is vertical half of the line and is opposite to the axis 34 of the junction. On this radially extending flanges 20, 22 are provided. With the help of nut and bolt arrangements 24, the leg parts or web parts 48 delimit themselves with the aid of the height of the web parts 56 extending in the longitudinal direction; Although halves drawn together against the line. These longitudinal webs necessarily lie above the upper clamp half 12, in addition, with a middle plane 54, the sealing hollow, consisting of one piece and cylindrical border through the points Q 1 and Q 2, is provided with a considerably drical part 26, which extends radially from below the "low" point 60 of the connection of an opening 27 in the support part extends upwards 55 bore. Preferably, the sealing body 44 and a passage 32 for the flow is formed. The geAchse 34 of this passage lying in a right-angled form in one plane is at right angles to the pressed or cast. From this form he can axis 36 of the line. Outer reinforcement struts can be easily turned into its final position during installation -37 on parts 16 and 26 lend the upper arch. The shape, which the sealing body clamp half gives additional strength. A normal 60 is in FIG. 4 shown. The pre-conduit flange 38 at the top of part IC forming the rounded corners enables it to make the connection for valve 40, which can be made sharper than would be possible if normally used for these systems. the sealing body is circular in shape while in this embodiment of the invention the inside of the installation is reshaped into the shape of the edge, the diameter of the passage 32 would be somewhat larger 65,
than the inner diameter of the line 10. In Fig. 3 it is shown that the branch

In Figure 2, the circular connection bore 42 wall edges 62 run parallel to the axis 34,

shown, which cut into the line 10 These wall edges or walls are through a

5 6

Cutting tool (not shown) manufactured wel- corners, present, rotated around the sealing body 44 against ches about this axis and in the direction of the one facing outwards, is moved forward by the pressure of the line. Even where to hedge the movement caused by the medium. Prior to branch line the same size as the line 10 and the walls 47a are twisted, if it points, the intersection of these walls 62 with 5 of their circumferential parts in the outer line surface considerable areas go over the corners so that they go slightly in the direction between the branch low points 60 and the main line. In a lower middle plane 54, right to the branch axis 34, the plane acting on the weakened part of the line is a projection of the surfaces of these walls 47 because of forces (forces which are only directed through the inner plane in the corners around the pressure) these are held obliquely genimum on an area running around the circumference if the above-written inclined surface 47a is used to exert a certain compressive force on the sealing arrangement. The sealing body, as the surface 46 is less sealing body, is particularly suitable for the train being suitable for this. Continue along the corner or edge of the lower half of the clamp against the line, place these parts against the sealing body after pressing the usual branch line into and into this. The surface or the manner shown in Fig.6 was attached. This is surface area 47a runs from the edge in particular of importance when one holds one's eyes in front of the longitudinally extending part, that in embodiments of known sem area the twist is reversed, whereby Art does not pull on the lower one Clamp half of the '° the stop is formed, which prevents the pressure force was diverted after the branch pressure the sealing body has been attached to the outside between the line. In fact, with many of the upper half of the clamp and the main line of all known embodiments, there was an indispensable feature.

desired impact force of the upper half of the housing against. Reference numerals 12 and 14 are the upper

the main line. »5 clamp half and the lower clamp half denote

A feature of the present invention is shown in FIG. Of course, other expressions can also be used

Finding through which the lower shelf is used.

In many embodiments of this invention, even if the conduit is relatively small, the shape of the conduit can be enclosed by the sealing body. Because of the differences in the outer diameter, the surface area is important. This shape is the lines on which the tapping clamps or determined by the sealing limit are to be attached above socket connections, the pressure of the medium does not have to be high enough on the outer and lower clamp half to create a line area or the area of the branch Line with the largest possible diameter can act on the body. In most cases this will include. As a result, the lower brackets 35 fit the sealing boundary of the inner edge of the sealing half loosely around all other conduit sections. In some cases it can be of this magnitude. According to the invention, elastic edges are offset in the direction of the center point of the sealing pad 72 made of rubber or rubber-like bodies. In any case, the Abchem material follows the sealing boundary provided on the outer surface areas 71 or the sealing boundary area of the lower clamp half. The thickness of each direction of the elongated sealing body,
This pad corresponds almost to the ring-shaped The novel shape of the sealed area towards the space between the inner diameter of the lower clamp can be determined with regard to the connection hole in the upper clamp half and the nominal line through clamp opening. These bores knife. In this way, the cushions are braced into the gaps, seen along the axis of the branch line, and more or less of a uniform circular shape and, when executed, are compressed, which depending on the deviation of the approximate shape of the known type was the sealing outer diameter from the nominal value of the respective limit in depends on the same distance from the edge of this line. Such a clamping effect is arranged in an opening. It is an essential feature first of all through the bolt and nut arrangement of the invention that the sealing limit area of 24 and later is reached by the pressure which diverges on 50 of the opening edge when the differential area of A 1 and A 3 acts. In front of the sealing body from the high points of the opening, the cushions preferably do not cover the area extending along the curved areas, between the center line of the lower clamp half. On this one it is squeezed.
In place, the cushions were the clamping effect on the The novel arrangement can affect certain outer surface areas. 55 points are described along the sealing boundary As can be seen from Fig. 2, the sealing body will be. For example, according to FIG. 2, this runs through 44 due to the pressure of the medium against the sealing boundary through a pair of such points. Wall 47a is pressed Extending surface 46. These points are located on diametrically opposite parts to the longitudinally extending 60 opposite sides of the opening and form sending parts which are gradual and flat. a straight line L1 parallel to axis 36

The sealing runs around the circumference.

Parts 48 are passed through the upper clamp half 46. Another pair of points Q 1 and Ql of the

gene pressed the line, while the longitudinal sealing boundary is shown in Fig. 3 in the areas

direction extending sealing body is not shown on this 65 146 diametrically opposite one another;

Way can be pressed against this surface- these points form a line L 2, which is perpendicular

ien. runs to the axis 36. The novel shape of the

The walls 47 a are everywhere, including the sealing body or the sealing cross areas

can at distances of these points (and other points in between) from the next edge the opening can be defined. It belongs to the essence of the present invention that the sealing body in the manner of an O-ring can be effective and the seal on such an area of the Surface 46 or surface 47 'can form if sufficient pressure is exerted. The pressure of the medium has the inclination that the longitudinally extending web parts 56 outward in the direction of the Push off surface 47a. If this pressure is big enough and if the bridge parts are exposed enough, to be shifted in this outward direction, then shifts accordingly the sealing limit. As a result, the seal boundary is as close as possible to level 54 and the largest possible surface area of the upper half of the clamp is exposed to the external pressure.

The shape of the sealing boundary with respect to the opening can be defined by following the pro ao jection of this shape on a plane 54 a considered, which is perpendicular to the axis of the junction body runs. Within this projected shape, the effective area A 1 of the junction body is on which pressure of the medium is effective. as

The lower clamp half or the lower support body has an inner surface opposite the line and outer parts on both sides of a central area. It's not a special one Change in area required to transition from the central part to the outer areas determine. The edge of the cushion or cushion body has this transition. To the bending resistance to enlarge this body, the central surface part is essentially related the other surface parts cut out, preferably the edge of the upholstery up to Incision extends.

The line is intentionally not in contact with the central inner surface area. Through this the supporting forces are compressed along the sides of the main pipe and because of the slope in In the outer surface areas, a clamping effect causes the sides of the line to buckle prevented.

Cutting out the central, inner surface area increases the strength of the lower half of the clamp or the support body. Since this incision is at least as large as the thickness of the supporting body, measured on the outer surface areas, this incision is and there extends to the edges of the upholstery body as much metal as possible is above the neutral bending axis 160 (in F i g. 2), whereby the strength of the support body is excellent.

In all of the tapping saddles, including those in which the connection hole is smaller than the inner diameter of the main line, it is necessary that-the longitudinally extending Parts of the wall 47 a lie in a plane which forms an angle with the cylindrical surface 46 forms. This angle prevents the pressure of the medium from extending in the longitudinal direction Web parts 56 of the sealing body on the upper half of the clamp between this half and the Surface of the main line.

4 sheets of drawings 409643/53

Claims (1)

i 650 055 * ι 2 cutting the connection hole of the Lei claims: ^ £ ^^^^^^ 1. Two-part, rigid tapping clamp with a £ ^ ££ ^ S ^ ^ TFS branch connection for connecting a Abzwe.gln- 5 and> ^wen ™ ^ _ß m _{is like the} processing by i ^ _can. 'F to a pressurized main ^ There is so much of the pipe and one of the connection bores after their manufacture that the frame-shaped sealing wanaung surrounding the position can be handled in the upper body supporting the branch pipe without use. ^^^^ '£ ^ _{Μωι are} less than that half of the clamp, whereby this cover body »o can wdche D g ^ s ^ two in the axial direction of the main line flow pressure j ^ _{6 oda if em} fende and two these nutemande, connecting J ^^ n ^ to T-aJÄüuB is used, essentially corresponding to the curvature of the gewonni _special measure consists of single-main line ^{having shaped legs, this one so-called `` e} ^ _{dd known} clamp-eye curved leg the connection hole .η χ ₅ ^ "^ Teiwekher surround the two clamp halves a predetermined distance and d he? j ™™ ^ ^ _{at multiple} seals ERS Abdίchtköφer for securing against lateral comparison ^^ ΓθΓ £ 'seals the conduit to the shift in ^™ τ ™™ Έ ° ™ ^ ζ ^%? SnSberHegenden sides of the connection hole recess of the upper clamp half, from which the coming surrounds and since other seals are however protruding, stored n * thereby * o * ™ _η "Ε _{η Sche} , _Jen halves even pre-marked that the connection ^{hole f" 8} ™stens ^ In _{this way a} chamber formation (42) in a manner known per se has a hen and ,, w.ra ^^ outside of the ge diameter, which is in the order of magnitude of the wdche vdUtonun ^. the inner diameter of the Hauptle.tung (10 ⁵ ™ ^ η L * uu g _Karamer ⁵ _eintre t _e n and is located, extending in the longitudinal direction limb s ₅ f ^^ * ™ _f Vr outer side and at the domestic (56) of the Sealing body _S (44) acting on the connection boring ^^^ S ^ sections. Enclosure (42) almost lying close and in the J «^ J ™ ^ pressure forces on this weakened clamp half (14) two elastic, wedge-f ^^ ™ ^ section mutually balanced so surfaces forming pads (72) section at a distance vone.n- Jn line. "JJ J ^ J ^ ^ smd arranged on the other, along the upper de 30 that £ ^e ^ ™ * _{a, there before drilling the} terminal - Edge area of the clamp half 14) run ^^^ gS _w ^S _ar . _{Despite this} advantageous and the lower half of the clamp (14) at a distance of ^^ ™ ⁸ _s ^h _difficult to hold clamps with multiple from the main line (JO) due to the complex An-2. Two-part rigid tapping saddle according to, An ^ J "" ^^^ ,, components only with difficulty