DE7414825U - Device for spraying flowable media, in particular pasty media made flowable by solvents, preferably used as corrosion protection media which harden on contact with the air - Google Patents

Description

PATENT LAWYERS

Dipi.-ing. H. Seiler Dipi.-ing. J. Pfenning Dipi.-Phys. KH Meinig

1 Berlin 19

Oldenburgallee 10 Tel. O3O / 3O4 55 21/22

Wireword: rope defense patent

Postal checking account: Berlin-West 59 38-102

April 24, 1974

Pf / üchu

.b'irma Deutscne T-kCALUiviii ¹ Gesellschaft ra.b.ü.

4814 Wind el solei ehe ι

Device for atomization of flowable, flowable made in particular by solvent paste-like, preferably as Korrosionssenutz serving, upon contact with the air \ curing media

The invention relates to an external atomizing device from fluids, especially fluids through solvents made paste-like media, preferably used as corrosion protection, hardening on contact with the air.

Paste-like media are preferred as protective agents for the preservation and against corrosion, namely vornenmlicjh as unter'ooaenaur.ut zmictel in motor vehicles; they distinguish themselves through unconditional nesiateness and long naité. jJieue pastezif oriiigen media, which, _egeoenenfails

The solids particles are mixed in, they evaporate easily Spe ^ iallösniittel made flowable and are after curing in air by contact with commercially available Solvents cannot be dissolved or only with difficulty and with a delay.

The spray application of these media is carried out using a compressed air operated spray gun, which the spray medium either from a smaller one that can be attached to the gun Dispensing container, vein of the spray medium from one greetings separated-gn ^ storage container via a line by means of a Pump is supplied.

When using a small one, directly on the spray gun attachable container must be screwed on and refilled every time the contents of the container are crushed which means that it is very cumbersome and time-consuming to use with long idle times. For the Processing vun flowable by a volatile solvent made pasty spray media that harden on contact with air are such small containers attachable to uer spray gun, especially during continuous operation because of the awkward handling not suitable. Also used one separate, with the spray gun through a pipe

741A82512.8.H

associated larger storage container * », which in the .v.egel with is equipped with a feed pump operated by compressed air, is not suitable for processing such spray media because in the course of processing the total in the storage container

i the amount of the spray medium is the volatile one Solvent gradually escapes into the atmosphere on contact with it. This is because there is a partial hardening of the spray medium already in the storage tank, this hardening can assume such an extent that the unused spray medium can only be forcibly or can be removed from the storage container using a special solvent, this weave caused by the hardening of the spray medium in the storage container In addition, there is a risk of a malfunction in the feed pump and in the spray gun, even in the event of an interruption in operation, a hardening of the in the channels and behind the seals located in the spray medium instead, whereby once the cuffs and seals of the pump, and also the pump parts can be destroyed even when starting up again, and on the other hand the spray gun poses a risk of Subject to constipation.

The invention is based on the objects of this uti uer processing of air-hardening spray media in the

'■ /' ■■

known oprüheinrichtuiigen given ua ^ iic.ic to avoid
and to create a device, including, i.ei liA'i ^ vren
Business interruptions a hardening ues Sprahnieaiumu
it is definitely ruled out that an eschnädigung eier
JJOrdejmng of the oprümnediums to ruiape serving opra'h pistol
can not take place, in which a clogging of the spray gun itself is excluded, and in the case of the spray gun produces a consistently satisfactory spray image.

jjthese Aufguue is iarfindun ^ suemaii in that between your storage container and u _c r opruhpistole a l'eiimenge ι of the ivitdium from the storage container is arranged, a closed intermediate container, the lid of which leads to a storage container close to the bottom dea, through one piece!

s ciil agv ent liable construction line, and its operation with a pressure line for the medium going to the spray gun
versenen is, dais on the lid of the intermediate container: = a
one can be acted upon by the compressed air as a control valve
dienenae, which can be operated either as a construction or pressure pump
Jet pump having housing is arranged that one the
Has the driving nozzle surrounding the jet pump, which is connected to the intermediate container via a nozzle, and has a nozzle which releases or closes the jet pump, since there is an inside in the storage container

A sealing and sliding guide on the suction line, under its weight and atmospheric overpressure, is arranged on the piston held in position on the spray medium received in the storage tank, and the., - the bp-r ^ hpi stole surrounding king room mundec. Jer reservoir through the sealed, under the 'his uewicntus ö aera Jpruhmedium in constant circulation overall I preserved piston ausolut oicher to the atmosphere off j closed, so DAW also not the least cure; Can be done. The main pump, which is used to convey a spray medium to the spray gun, is also complete with your spray medium I

not in jeranrung, ου uaJi no dux'ch eme possible constipation the oil pump can cause a certain air malfunction. The | older is completely closed and stands with the

are also not in direct contact, so because there is no hardening of the oprühmeaium here can, as ej.n j-.ustauöch the in the container for conveying the upruhmediuiua necessary jpucKluft vtrnmaert with the atmosphere is _> ie oprühpistu_r has two different ones Functions, without filling up the intermediate connector aie when open. ..jchieuer as a suction pump una generated in de:;, the ^ reioaüse aiiigt Denden rtLn ^ rauju una üuer den v'er-

be one of the

l ter about

L tu au, · .jt3 tvx t ζ en zul, ^ wiü »; nenüt: iiäiter in, durc: i den Ja ^ .jprünmediuiij from a stock au

a short connection line sucked into the intermediate container vvira. When the slide valve is closed, the strand sleeve acts as a Pressure pump and generates a promotion in the intermediate container of the spray mediuma to the spray gun serving overpressure.

another feature of the ü. finding Identifies uadurcn, dt | ß in the housing a coaxial to the jet pump between these and your Aufnanniestuczen the Druekluftleitung arranged, with a step facing the main pump with a larger throughput and a stuie facing the / kUi'nahinestutzen smaller diameter provided, forming a control valve Stuienxolben is arranged, the one of the z, ufuhrung the uruciclui "t zui · jet pump serve iihngsDüiu-ung üUl'weis that in front of dajm each piece of smaller diameter goes into an overbore There is a larger diameter in the cylinder space of the otul'e one of the piston in the seal υ he strani pump relieves pressure Beaui'scnlugende pressure lowering device is arranged that the lower level The cylinder space accommodating the diameter is separated under .abdichtung from the ütui'e larger Du 'chmessero - and exritan the Stuie of smaller diameter possesses outstanding diameter, and that the ends of the pieces are of a smaller size than conical I-shaped valve body for the purpose of the nUi'naume- i Stutzens is formed. When the owiöcnenDehaiter is held,; i.e. with the jet nozzle open, the high ι flows

741A82S12.9.74

for diö atomization of viscous, flowable through solvents made pasty spray media for actuating the spray gun required air pressure over the longitudinal and transverse bore of the Full height step cologne by the jet pump that is in the intermediate container what is necessary for its filling Vacuum created. As a delivery pressure for the lip brewing medium when the The same air pressure cannot be used because a larger amount of spray medium is used would be conveyed into the spray gun than the spray nozzle of the spray gun to process and spray into a good spray oil can. For this purpose, the stepped piston is provided between the jet pump and the receiving socket of the compressed air line. This piston acts as a pressure reducing check valve and keeps the air pressure in the intermediate container constant due to the diameter ratio of its two stages a certain ratio lower than the internal air pressure and ensures that even with very viscous spray media Inside the spray gun, the amount of medium supplied for the amount of compressed air supplied for atomization in a favorable ratio, so that an optimal spray pattern is generated without the risk of clogging of the spray gun is geoen. As a reducing check valve working piston acts in the following way.

- ti -

When the slide via the jet nozzle is open, the valve closing element located at the end of the piston is lifted from the valve seat of the receiving nozzle under the action of the piston, so that the compressed air is fed to the jet nozzle at the operating pressure and at the same time when the slide is aerated jet pump is gesunlossen, of the jet pump builds up in entire interior receiving üehäuses an intermediate pressure which at a through i ^ lächenverhältnis of the stepped piston predetermined ric-iie closes the receiving connection piece for the compressed air, so DALI under this squat pressure, the spray medium from the intermediate container is conveyed to the spray gun). Another advantage of the graduated piston is that the delivery pressure for the spray medium in the intermediate container is practical

is kept constant, e.g. when the spray gun is operated due to the high air consumption of the air pressure. ± u of the supply line drops, without the arrangement of the stepped piston, the pressure in the intermediate container would also drop and rise again when the spray gun is released. In this way would be a aauernder air exchange in the äwis'JhenDehälter the jio ^"1 ge were aogefüiirt through the solvent vapors from this, which would KATC-riais m enter the Zwischenibehälter a partial curing of the. It is essential that the Durcrunesser-V ^ .- rhaltnis of the stages aes Koloens is dimensioned so that that of the jet pump acting as a pressure pump in the intermediate tank

generated röi'd erd ru,. 'K 2'a. "i; ·. 3 KL-dium un ^ ei'aur der i.MUe J es; ..ui'CJi'UJKcd corresponds to opruiipistui.e. -« eit ^ r lot vorttiin.i't, aali der ju.vniiieuse: ¹ α er -ukn ^ s- und, .uer drilling en muht oi uxs j. er ii.:.Lnau ronmesser der i'reiodüse the jet-

v, exL-erea bLevkmtxl of the jin 'connection consists in daio the ii-eioaliae of the oprahpisioie with aeiii the supply of the jJrucü.lurt sieuernaet: uandiieDtl is un ^. at the same time is designed as a valve valve body with one at the inlet of the

aes spray pipe arranged at the valve seat Außerbezun _o jtr opriihpistole in jiingriff occurs. Here is v.'a, abb the ventiiscniieijkörper as a hollow cylinder fromj ^ e du j et i..t and aal "of its downstream end wall has a central jetting acting as a driving nozzle the d_c

ireioduse-forming, sealingly guided valve acnlieli body | Over ^ three xjuft branching channels are provided which |

afl the end of the spray gun's fippipe into several circular shapes

arranged around a serving outlet bores, iiei the Spruiipiscule takes place

a central influx of the Jetriebsdruokluf c, the nacii α em I. Passing the 'i'reiodüse expanding into a uii'fusor i

wirKcJÄiej lioni · flows, jx-.t da. -un this

- Iu -

-Hj-

It is true that there is depression in the area surrounding the tea nozzle rauflj, jedocri is not sufficient, viscous spraying medium from a distant, lying storage container via an o to suck in with limited cut. To this ^ wecite ijt the switchable, acting as a suction or pressure pump, the jet pump provided in the intermediate container with the required delivery pressure for the jump medium as negative or excessive pressure builds up. The driving nozzle of the spray gun can be moved lengthways connected to the actuation handle and acts as a valve body with de; ii opposite, designed as a valve seat! i, nde de3 Diffusorronretj together, blocked in α en bprahpausen this valve arrangement your oprünmedium from α em intermediate container the access to the Jiffusorrohr until the uandheoel is operated. Inside the spray gun is circular around cias as jjii'fuaor trained AUbstomrohr in Well-known Aeise em wreath from aia ^ nde ues Kohres in the free Atmosphere-mouthing r> enrungen provided, youi'ch the for Prevention of jixldung a spray with an air inlet ^ -. to the The spray jet emerging from the gun is placed.

x.in a further line of the invention is that the

for aas spray medium one in the ^ uychlubbohrung the J] -1'ail j. it; tul e auj '. ^ enuuimenen, lu; j zwcm vonein;, natjr j.osb;. »ren files oe ^ -t eiiCJi-» eii ^ tuizt :. uusitzt, ae ^^ en m aur in ^ jiii uü ouüran ₀ : .e— ■; rmauciic ie: ie e ^ i: ^: ¹ . m dei <other leil a ^ reii '^ i.aei. ^ .toutl |

uiaa.it, - 11 -!

which holds a resilient shut-off valve arranged in the other part of its associated valve seat in the raised position. The two-part connection piece has a check valve which is kept open during operation when the two parts of the connection piece are screwed together. However, if, for example, during a long break in operation, the two files of the connecting piece are separated, the shut-off valve closes automatically in that the valve ball comes to rest on the associated valve seat under the pressure of its valve seat, whereby an unintentional escape of spray medium from the lower part The spray gun, which is open to the spray medium supply, offers a convenient way of eliminating the remaining spray medium. For these purposes, the upper part of the nozzle that remains on the spray gun is connected to a container with detergents and solvents via a short hose. JIf actuation of the gun acts as the motive nozzle pump, as by the JS ect or effective j of the outflowing air stream in the subsequent to the Anschxußbohrung of the nozzle King space, a negative pressure is generated which maintains the solvent from the Re inigungs he ansuu ,. t and promotes in a sharp flow through the interior of the gun, which ensures an advantageous and easy cleaning of the spray gun itst _o

other i. ^r ; erxmal dei · üri'inaun ^: Descent darLn, daii in your shaved head an on sseiritr Oversei'.e emu: ic e _{; L} , e l. . '.' UJ ¹ If ₁ J ... β π, with the aut ^ .euiiat.teii uohrung .ies stutzen as the valve seat ;: valve that can be brought into jiiri handle <jni xeiikörpe: · L.roi; en..it; r .jijiivvimnier is arranged, una aiAi centered on your Ventiisuniietoivorper
one of the leadership of aes swimmer and J er ü.nzei _t _e aes kediiirastanueü i ::. Zwibu.-ienbenä: ter serving that iionr ^ n ₀ of the ütut with opiei ren'en by ^; ter jtab beieati ^ t, u ^ r with his inde slidably du.r'chsiclicijj.en in a oonruri ^ a with ueiii Stutzen Däi'estiüten nauoe is added.

Finally, it really matters, aalä in the spray gun

die ctröm> - ^ j. «': uer: 3cuts for

stui'enless running

great
transitions uesitzen and uerart eineasen sina, ami a jüntroclcne | ri

of the medium is prevented.

The accompanying drawings show an example of an

Leadership ^! 'orm of the invention, and it indicates:

i'ig. 1 schematiocne representation of the device,

consisting of storage container, intermediate container, Spray gun and its connecting lines,

Flg. 2 Individual illustration of the on the lid

the control valve arranged in the intermediate container, where the overfill protection

housing part by 90 to the!

I connection axis with which the jet pump

and the housing part receiving the stepped piston is shown rotated,

jc'ig. 3-illustration of the spray gun in section.

like the i-'ig. ι shows is on the handle of the spray gun 1 the .Jruckluftjuelle 31 connected, while m more approximate -tiitte of the spray gun 1 em nozzle 26 is arranged, the is connected to a line lü, which is at the bottom of the Zwisoi cehaiters 3 is connected. i) he intermediate container 3 is standing

üThe one stub pipe 8, which is connected to its cover 3a | is, with α a reservoir 2 in connection. .The suction line I ti extends almost to πια to xioden α it sb e sb eh s 2 and Gesiezt a non-shown check valve »in deia storage container Ί and on lea suction pipe ti a piston 3 is sealingly arranged, aer under α er , virkun _ö its weight constantly rests on the surface of the jumping medium received in your storage container 2 , rn one explained later,

- 14 -

on the lid 3a of the Zwiuohenoehälters 3 attached housing 5 of a control valve is also the jjruokluft source 31 connected.

like the Jj ¹ Ig. c zexgt, the housing b of the control valve consists of a tubular part 6, in which the friction nozzle 16 and the diffuser 1 $ of a jet pump are arranged. At the bottom of the diffuser tube, a slide 14 is provided in the housing part 6, which can be operated from nowhere and which can open the diffuser tube or slide it. The i'reibdüse 16 from a uiffusorrohr into the Ii? Surrounding the mouth of the ring space 16b, the other an xsose 16a of a nozzle 4ü with a nozzle 3i? is connected, which can be screwed sealingly into the cover 3a of the intermediate container 3 »The nozzle 33 is assigned an overfill protection 34, which consists of a float 34c located in the intermediate container 3, a valve element 34a arranged on the top of the float and a. Guide rod 33 is made. The passage bore of the connecting piece 3'j is designed as a valve seat 34b and is closed by the valve closing body 34a of the float 34c when the intermediate container 3 is filled. The rod 33 reaches through with play aie through hole of the connecting piece 35 and is guided in a cap 39 made of transparent material, so that the j3eiüllungsstatus of the intermediate

- l5 -

container 3 can be read from the outside. ^{A 1 '} part 7 is coaxially connected to part 6 of the valve housing 5, which receives a stepped piston 11, the step of which is larger than the diameter 11b of the nozzle 1b of the jet pump and the step of which is smaller in diameter 11a to a connecting piece 36 for the compressed air line 31 is facing. The piston stage of larger diameter 11b is sealingly in a with a .Druckfeder lic

wall equipped Zyiinderkammer out, the chamber sealing penetrated by the piston stage of smaller diameter 11a which in turn engages in a cylindrical chamber 37 of larger diameter. At the jaide of the piston stage lower Diameter 11a is a conical valve closing body 38 arranged, which is connected to the through hole of the connecting piece 36 as valve seat / can engage in the stepped piston a longitudinal bore 12b is provided, which is in front of the Ventilschlieii body 38 merges into a transverse bore 12a.

The J? Ig. 2 shows the control valve in the filling position of the .'jwischenbehälters 3 · The slide 14- is in the offer position so that the operating Compressed air through the longitudinal and una i ^ over bore 12b, 1 ^ a of the piston 11 enters the jet nozzle 16 of the jet pump, where m the king space lbb in the bore 16a and via the nozzle 35 in the Intermediate container 3, a negative pressure is generated through which over

- 16 -

-Ib-

the suction line is that the spray medium is sucked in from the reservoir 2, if the outer container 3 is filled, the valve seal body 34a of the float 34c closes the valve seat 34b, and the rod 33 is via the na ^ üe 39 of State of the full range aolesoar. Uira to operate the spray gun 1 of the ochieoer ± 4 closed, v; ird in ei eu; Dii'i'usorrohr lip, in the i'rei Duii.se Io dex · jet pump, in the ningrauin lbb, m the clock iba una so that in the intermediate container ~ i> an overpressure build-up, which served to convey the spray medium from the intermediate container via the line l to the spray gun 1 νν>'ηη according to the area ratio of the Koloenstäi 'en 11b, 11a aiescr überdruci ·: corresponds approximately to the outer riäH'te of the rexrieus air pressure, ^ e & en the effect of the i'eder lic. the piston 11 is shifted downwards, where its valve compliance body ' id the otutz 36 different under this in the intermediate container 3 prevailing Üoerrück becomes the test medium the spray gun 1 supplied, it being released when the nand lever 19 of the spray gun 1 is actuated.

«Vie Ji ¹ Ig. 3 shows is en. The compressed air line 31 is connected to the spray gun, in the middle of the barrel of the spray gun 1 there is a jinbchluji bore 25 for the spray medium, which flows into a lim ^ rauni 20. In the inlet space 2ü there is a valve connector that carries the friction nozzle 21

- 17 -

arranged, which is rigidly connected to the hand lever 19 of the spray gun. The end of the overflow nozzle 22 of the outflow tube 18, which is used as a diffuser, is designed as a valve seat 17, so that when the hand lever 19 is not actuated, the ring space 21 is closed so that the pressurized spray medium cannot enter the outflow tube 18. If the needle lever I ^ is actuated, the .catching nozzle 22 is released by pulling back the valve closing body "j> 2 , so that the spray medium is ejected via the discharge pipe from the mouth 13 of the spray gun. To prevent the formation of a spray mist, there are ^ weig bores 23 provided for the compressed air in the spray gun 1, which engage over the King space 20 and in _{Mantelbohran;} -en 24 open at .rinde of the exhaust pipe 18, so that the spray jet enclosing, dieüebeibildung preventing .Luftmantel is formed hole in the terminal 25 of the spray gun 1 for the oprühmedium a nozzle 26 is inserted, which consists of two mutually detachable parts 30 and 27th the fixed in the κη- ■ cnlu "bore 25 part 30 of the connecting piece 26 engages in the other part 27 a of the connecting piece and forms a plunger , the one arranged in the other part 27

j holds the valve ball in a position lifted from its valve seat 28 against the action of a valve. When the part 27 is released from the.) Part 30 of the connecting piece 26 by screwing off, the valve ball 29 automatically closes the connecting piece part dl , so that

- 18 -

the pressurized spray medium cannot escape from the nozzle part Zj .

- 13 -

Claims (1)

Expectations 1. Vprriehtung for spraying flowable, in particular pasty made flowable by solvents, preferably serving as corrosion protection, if necessary Containing solid particles on contact with air hardening media, consist of one that is under pressure medium supplied by a spray gun atomizing compressed air and from a storage tank connected to it by a line and receiving the medium, characterized in that between the storage tank (2) and the spray gun (1) a partial quantity of the medium from the storage tank {z) is received , closed intermediate container is arranged, the cover with a suction line (8) which leads to the bottom of the storage container and can be closed by a non-return valve, and its .Boden with a pressure line (IU) leading to the spray gun (1) for the medium is provided that on the The cover (j5a) of the intermediate container (3) has a housing (^) which can be acted upon by the compressed air, serves as a control valve and can be operated either as a suction or pressure pump, and has a housing (^) which has a 'l'reibuüse ( 16) surrounding the jet pump (loa) owns, .ier liuer oxiier; Jtul ^ Li. (3 ^)> iriit de;:> kiWiccen ^ e. "J; x ö ^ r (, ^^ veiO ^ inie !. ul, alia '.-iiiuu j i die Jjii'I'Uüürduse (Ip) «er J + ri.Jiipunijt J'rL-J. _t ; ebei: a ^ n or I. Veracillieuenaen ochieoer \, 14) aui'vvex ^ t, a- ^ w ■. / .. ae ... Vo. ": 'Atti-j oeftaicer (^) exn m dieaeL · ana an Jtr o ;; U _t . ieican ^ {ό) \ aichcend and ^ ieiiuni ^ tialiruen, under üex: .ü: n uewicht; una the atmospheric iiUitaruuK au ι ie ^ i in the VorrütsbenaiVj.r I ₁ ^ j) n opruiuneaium in AUi ¹ It ^ t; , _unold piston (, ^); iot, and daii aie An ^ c-nlubbuhrun ^ {z'ö) the. üprühpistuJe 1,1) i'for the .Jrucxlfcitung (.lü) in a die; xreibduse (^ 1) of the Lipr.ihpisiüie (1) surrounded aen Kingrauin (üOi tastes. i 'egg. Device according to j'.n; ipruch 1, dadurcn gekennzeichru- ι that in de.:, Housing (b) a coaxial to the jet pump (1!?, 16) between this and a em AUi'nanmestutzen (36) of the urucxlui ' tleiCung (31), with a btui'e larger Jurcnmessers (u) facing the böraiiipump (l5) and a btui'e lower diameter facing (, 1Ia) facing your uufna.iinestutz (3b), provided with a tax valve. enkolDen (11) is arranged, which has an aer supply dejr jjrucklui't for the oil pump serving longitudinal bore (12b), which in front of the jinde of the btui'e lower iiurciimessers (lia) in a ^ uerüo ^ rank {lau.) üer ^ ehL, daii in the l6yiin.ier room of the Jiui'e gröliertn Durcfimessero (ü) one den; -Zl- Piston (left) in respect of the jet pump (Io, Ib) relieving pressure. The compression spring (lic) is arranged so that the ijtuie of grooved Jurcamenae (Ha) auiricamenae
Cylitv. The room [j> 7) is separated from the larger Jurcnmea ^ ers ^, 1Ib) under seal and has a uurcümesser superior to the btuie lesser jJurchmeüdtrs (lla ) is designed as a conical valve closure body (38) for the unaes receiving connector (36). Yorricii c ^ ng naCii claim i unu Z , aa g
aaü the ojurcninesser-ratio of the stui'en (Ha, Hb) of the Koloens (, il) dei-dimensioned that the uei blocked ütr ^ nlp ^ mpe (Ip, 16) produced in the intermediate holder (3)
for the medium about 1/2 - 1/3 of the air pressure
ier üprühpiatoie (1) corresponds. 4. VoxTiJiitung IiL-Cu claim 1 to 3, characterized in that the d & b .ier ajurciimesser the longitudinal and ^ uberungen (1 ^ b, Iza) is not coarser than the inside diameter of the driving nozzle (Ib) aer d oriiiilpuape (1 ^>, id). 5. Device according to Ana ρ ru cn I to 4, characterized in that the ireibdüse {'dl) of the üpriihpistule (l) with which the supply of compressed air control iianuhebel (19) is verü and en and at the same time designed as a Ventxlschlieukorper (21) is that with a ^ m inlet of the / angdüae (the Sprührufcres (Ib) arranged valve seat (17) when the bprühpistole (l) is activated) in 6. The device according to claim ^ _f, characterized in that the valve body ($ 'd) is built over a nozzle, and on each of the downstream dcirnwaiid a central, ala xreiDdüse acting üonrung (ül) has. 7. Device according to Aiisprucn b and b, characterized in that in the bprünpisCuIe Cl) a plurality of the i'reiDdüse I ₁ ^ ¹ I) forming, sealingly guided valve body (32) overlapping Luit branch channels (23) vo r-gtidenen aiua, which on the i ^ nue dea bprühronres (Ib) of the spray pistol (l) open into several outlet nozzles (k! 4) arranged in a circle around the spray tube (Ib), which serve to achieve a luxt jacket. - 23 - 8. Device according to ^ napruch 1 to 7, characterized by the fact that the pressure line (10) for the spray medium accommodates one m of the sliding hole (25) of the spray gun (l): those from two files (50, 21 ) has bed-end connecting piece (2b) , the m of the ansenlubbohrung (2b) oefindiiche l'eil (30) which engages in the other l'eil (21) , which is arranged in the other i'eil (21) firing shut-off valve (^ y) from his associated valve seat (28) stops in the raised position, i 9. Device according to claim 1 uis o, characterized. j dab in uem intermediate container (3) on its top a kegeiförmigcn interengageable with the al "valve seat (34b j formed bore of the connecting piece (3i?) in cupped j valve body (34a) carrying float (34c) attached I. ι ι j is arranged, unci dab with cig on your valve body j (34a) on the guidance of the swimmer (34c) and the display j of the lviediumstand in the interim (3) serving, the | I. Drilling of the connecting piece (3i?) With play, penetrating rod (33) is attached, which with semeia ji, nde sliding in one _; drilling a you-.cnsichti ^ en with de;:. Supports (3i) ^ e- ■ fixed hood (3J) is added. j - 24 - ! -M- 10. The device according to claim 1 to 'j, characterized in that that in the spray gun (1) the otrömungsquerschnitte have smooth transitions for the medium and are dimensioned so that em dry up of the medium is prevented.