DE1978893U - ELECTRICALLY INSULATING INTERMEDIATE PIECE FOR PIPE CONNECTIONS. - Google Patents

Description

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Ο ', ) / · ¹ ^. June 1967

- -- , Description

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GEBEAU ¹ C HSMUSTEB REGISTRATION

of the company ELSTER & CO A.G., MAINZ-KASTEL

; Title:

"Electrically insulating intermediate piece for pipe connection connections ".

> '; The present innovation

refers to an electrically insulating separation _s or intermediate piece for drill connection connections,

■ φ · I

J ₁ 'especially for use in installation

M 5 tion of gas flow devices and fittings.

f, 'Electrically insulating inter-

-l · rule tees for fiohranschluss connections there

\ in numerous designs. But you lack that

for use in _; Construction simplicity, which is indispensable in practice. They are complicated, heavy, -t- · 'and unwieldy and represent what is no less after-

eat ■ ■ ■ -

it is partly expensive for the devices to be inataiii

- ^ j- '' additional fittings with their own considerable .place ii ^ Js is required. / ■ ^h ';:

'YS'. .-15Z ¹ \ - '. A- ■ 'For the installation of ji; ,, "/, / ^', gas flow devices (volume counters, pressure regulators iM ^l -, - '''" etc.), in order to avoid such serious / Haohy .. jjj '/ \ ^, share to get free, already proposed, on at least one of the connecting pieces of such a device, the upper nut of the screwing upper-

Scha./K.- A 1204 '. · '12. June 1907

partly to make it usable as an electrically insulating intermediate piece, including them for this purpose their thread made of electrically insulating building material (e.g. plastic) hereawtellea and their circumference to be provided with a protective sheet metal armor.

/ But it is not except

be careful that the thread of such an art, stoff mother at her Festzidaen on the connecting mating area the lower part of the screw connection may be exposed to forces that it cannot cope with,

■ - '· ", by the present New

a solution is created in which it there is no such danger and which, moreover, is characterized by a structural simplicity that can hardly be increased excels.

The new solution is the

essential simply in that that is electrical insulating separator or intermediate piece exclusively through the connection nipple of the screw connection upper part (At least one) of the connection stub of the flow device to be installed is formed and for what purpose a nipple made of plastic in a manner known per se is used.

The innovation is in the following

the two shown in the drawing Examples of execution explained in more detail. In both ■ Figures are the same or corresponding to one another Parts are given the same reference numbers. First of all, consider Fig. 1:

JO ^, -, .- '■ With 1 one of the so-called

Side tubes of a common gas meter housing, with. 2 in the exit opening of this side pipe seated, associated connection spigot, which is conventionally referred to as screwing

exercise lower part is formed

Scha./K,- A 1204 12 ·. June 1967

The associated screw

_{: The} exercise upper part consists in the usual way of a union nut 3 and a connection nipple 4, which is to be tightened with the nut to seal it on the socket 2 and which is screwed into the connection pipeline with a free upper end provided with a thread «

For cases in which the installation of the meter with the interposition of a electrically insulating separator is, according to the innovation, the BoHe of this separator simply taken over by the connection nipple 4 of the housing spigot 2, through use one in a manner known per se from one

^! | 15 electrically insulating material consisting of

'. leadership of such a nipple. <

Screwing in this Ndp-

pels in the connecting drilling pipe can be ^J jk) borne stress on the plastic thread in over-

licher way with the help of a key

^! : take place, which is attached to the mit.tflt.eil of nipple 4 with a four "or six- '. ' square profile -}" ^: -. .. ....

Fig. 2 shows another overall \ structures while which the center portion of the insulation I nipple 4ein any, for example polygonal or | ■■■ 'all around arranged points of attack (eg beads, | protrusions or the like.5 designed profile, and [on the inside of which a metallic reinforcing; sleeve 6 is provided, preferably injected. J This execution is characterized by particular firmness and tlnempfindlichkeit from, so you \ -''.'_ itself; _-; "for turning the insulating rNippels without him züge- ^<■: use ^/ * jeopardize, if required, also a pair of pliers .. can ·!... .... ί

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Claims (3)

.32BÜ1M5.6.6? Sohä. / Κ. - A 1204 June 12, 1967 ,Expectations: ■. <■■ - '" l) Electrically insulating ί separating or intermediate piece for drilling connection J fertilize, especially when installing gas '*' -A ^ flow devices:; Mp ' 5 ■ characterized by that the separator (.4) is simple and exclusive dtßfigh the connection nipple of the screw connection upper part (At least one) of the connecting pieces of the flow device to be installed are formed and 10 including one in a known manner from electrical insulating nipple manufactured is used; 2) separator according to claim l), characterized in that on the inside of the insulating separator (4) a metallic one 15 reinforcement sleeve (6) inserted, preferably injected is. ■ 3) separator according to claims l) and 2), characterized in that ['the insulating separator (4) in the connection nip- "! 20 pain in a manner known per se with an all-round ; - - · the profiling or the like, for the attachment of a. Plant-' • the tool is provided. ■ j '■ ■ \' —000O000—- j '' ■