DE8603783U1 - Valve - Google Patents

Description

Dr .- ^ 0 ... 'WA.L.T.E R..ST.A R Κ

PATENT ADVERTISEMENT 86 010

Moerser Strasse 140 D-4150 Krefeld 1 'S "(021 51) 28222 U. 20469 CS 8 53 578

AMTROL Inc., 1400 Division Road, West Warwick, R.I. 02893 USA

Valve

The invention relates to a valve for single use of pressure vessels that can no longer be refilled via this valve.

Pressure vessels are usually used carefully Supervision filled in a filling station and then distributed for further use. When the container are empty, they should be brought back to the filling station so that they can be filled again or in the event can be destroyed by disposable containers. Simple and economic possibilities for refilling of a container by the user or in some other way, however, can result in the container less carefully filled, with impurities or inferior substances in the container can be filled, so that combustible materials can explode. Reuse or further use of such pressure vessels is therefore to be rejected for safety reasons.

From US-PS 37 04 813 a valve is known, the valve body at one end for connection to a container

Deutsche Bank AG KrefeM XJ3 / 152S BLZ 32070080; ' ·, SparJ} ass6.Kretel <t 385.722 '! JLZ 32050000 ■ Postal check Essen 4055-431 BLZ 36010043

PATENT ADVERTISER DR. ΒΤΛΗΚ · MOEROtR StR ". J45 · b ^ 15 & KRfefiET_i>..« ^ (02151) 2B222 U. 20469 · βδ) 853578

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is trained. The valve body has only one passage for filling and emptying the Container on. A shut-off body to control the flow is provided. In the valve body there is tine adjustable device with an initially inactive check valve, which is initially in one position lefindet in which a flow in both the filling direction »Ls also possible in the removal direction. The setback

valve is activated after the first filling of the container

• activated and switched in series with the shut-off body. The initially inactive check valve • eist a movable valve member, a valve seat, tine pushing the valve member against the valve seat installation and a locking mechanism, which is initially The interaction of the valve element with the valve seat is prevented. The locking device is after The filling of the container is relieved so that the valve member can lock it against the valve seat. After its activation

the check valve only leaves the contents of the container

In the direction of removal. After the check valve

_ Has been activated and the flow in the filling direction

Hockiört, it is against access from the outside

of the valve when it is connected to a container, around the passage channel in the filling direction Iu open. Accordingly, a container equipped with such a valve can be emptied The container can then be filled again when the valve is returned to its original state but can no longer be filled after the non-return valve has been adjusted.

From US-PS 39 85 332 is a safety valve known for pressure vessels, which have a housing

j has a central bore that connects

between an outlet and the pressure vessel for filling and controlled emptying of the pressure vessel is used.

The central hole has a lower section, PATENT ADVOCATE DR. STARK MOERSER ST.A. .14t) ■ ίθ "-415Ϊ) KFfEK & b ·. ¹ S" (02151) 28222 and 20469 · Qx] 853578

which is narrower than an upper section. In a threaded section of the outer wall of the housing is a screwed in hollow button with a central hole. It can also be moved in the bore of the housing a core arranged with a central bore. The upper end of the hollow button is rotatable and axially immovable on the core. One Seal is I move i in the lower section of the arranged central core drilling. The core has stops that allow movement of the seal below the Prevent the lower end of the core. The seal rests on the lower section of the central housing bore limiting shoulder when the core has been moved the maximum possible distance or when attempted to refill the empty container. The core includes at least one passageway extending outside the seal and the central bore of the core connects to the upper portion of the housing bore. Between the outside of the case and The inside of the hollow button has associated stops to prevent the backward movement of the core to a position in which the seal during refilling of the pressure vessel rests straight against the shoulder. The stops meet after the pressure vessel has been filled and the gasket, core and button 1n have been brought into a sealing position.

From US-PS 871 780 a bottle with a bottle neck is known, the one passage and one valve chamber at the inner end of the bottle neck. In the Chamber there is a valve seat and a compressible valve body, which seals with the valve seat and has a larger diameter than the passage. The valve is elastic and is in the chamber

PATENT ADVOCATE DR. STARK · MOERScR STp. 14p ■; D * -4 \ sb Κ ^ ΕΡξφ • .'g '(02151) 28222 U. 20469 · [g] 853578

introduced by deforming it and then pushing it through the neck of the bottle by screw-like pressure. For this purpose, the bottle is placed in a compression chamber and the deformed valve is pushed through the bottle neck with a screw-like device. This valve is intended to be a fraudulent replacement of the
Prevent the contents of the bottle. The valve is not intended to be used in pressure vessels.

There is a need for a relatively simple and inexpensive valve which conventional filling a
Pressure vessel allowed under perfect conditions, which reliably seals the pressure vessel when not in use, which enables controlled emptying of the pressure vessel and which prevents the pressure vessel from being refilled under improper conditions and unauthorized.

The object of the invention is to provide a valve for pressure vessels, in particular compressed gas cylinders,
via which the container can no longer be refilled after an initial filling, a valve body once activated being freely movable and allowing the pressurized medium to be removed, but automatically moving into a closed position and thus preventing the refilling of medium into the container. The valve should be simple and cheap. It is designed to allow a pressurized container to be emptied once it has been filled, but that
Prevent refilling the container.

This object is achieved by a valve
with the features of claim 1. Further advantageous embodiments of the invention emerge from the subclaims.

PATENT ADVERTISER DR. STARK · MOERS-iR SIR ".? 4ä < · TAi5 & KR ^ FElO 'S "(02151) 28222 and 20469 · Q3 853578 K

In the inactive position, the valve seal is in the upper Section of the central housing bore held by its compressed, elastic arm sections. In this position, the lower section and from the middle section of the housing bore and from the outlet a continuous channel is released for filling. When the container is full and the valve is transferred to the closed position, the valve seal assumes a shape in which they one Prevents flow in the filling direction to the pressure vessel. The valve seal is inaccessible from the outside and can therefore not be tampered with in an unauthorized manner to keep it open for the purpose of refilling the container.

The valve according to the invention does not need a separate one Spring for actuating the valve seal in its various functions. Only a through channel is formed, which is used both for the initial one-off Filling of the container as well as for the following, controlled removal from the container is used. At the start the valve seal is not in this passage. The valve seal is, however, from its initial | inactive position and position during the filling process | placed in an active posture and position to |

then to effectively block a flow in the filling direction change here. »

If the valve j

is closed, it is automatically transferred to a state in which refilling the container is not possible. more is possible. The valve has a shut-off device which also includes and includes the valve seal which controls the removal from the pressure vessel and / or can be ended.

PATENT ADVERTISER DR. STARK ■ MOERSER STfl)? 4o) · p-415ff ΚΗ§ΡΕ (.ς '■ '35 "(02151) 28222 and 20469 · Qx] 853578

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With the valve all official regulations for valves to prevent refilling of pressure vessels. The construction of the valve is simple and inexpensive to manufacture. It is secured against incorrect use when filling, storing and emptying the container.

The valve according to the invention can be used for pressure vessels are used that contain compressed gases and / or hydraulic fluids. The medium can also contain solids which are carried away from the container to be emptied. Many types of available media are sold in disposable containers. Small metal containers hold liquefied propane, butane, or cooling liquids such as freon. If such containers Filled by a manufacturer who has complete control over the initial condition of the containers and has the filling procedure and other conditions, creates a relatively safe product that can be publicly distributed and sold. Sometimes will however, empty or partially emptied containers are collected and then by little trained or little experienced People filled again. This often leads to very dangerous products. The erfindungsg, wet valve prevents such problems and the dangers associated with them.

The valve is e.g. on a cylindrical container attached and thus transported to the bottler. the

The cylinder is filled via the line connection or another connection into the chamber of the valve housing and through the lower section into the Printing cylinder. The valve seal is prevented from moving downward by forces acting on it upper surface in the joint of compression of the deformed Arms of the elastic sealing part? attack. the Compression exerted on the sealing part,

PATENT ADVERTISER DR. STARK ■ MOERSiR STR ¹ . 140 · 0-415 $ ICRfefeLß.- φ (02151) 28222 and 20469 · [g) 853578

is sufficient to withstand the pressure that acts on the sealing part via channels downwards. Accordingly, the compression force between the sealing part and its upper surface is designed so that the valve body is kept in the open position during transport. Preferably an O-ring seals the rotatable valve stem during the filling process, in order to prevent the product to be filled from escaping into the atmosphere during the filling process.

At the beginning the valve is in the open position. When the valve stem is rotated to the valve Bringing it from the open to the closed position will exert a sufficiently great force on the Sealing part exerted downward, so that the compressed Moved area of the sealing part down will. The sealing part can then with the valve seat seal, with a sufficiently large force being exerted via the valve stem to remove the pressurized Effectively seal the contents of the cylinder. The difference in diameter between the surfaces is then large enough so that the compression of the sealing part approaches zero and there is sufficient play for free movement of the sealing element. When the valve is closed for the first time after the filling process and the valve stem is turned to open the valve, the sealing part moves upwards because of the pressure of the cylinder contents on its lower surface acts. Then the cylinder contents can be extracted from the cylinder can be removed. The valve stem can be rotated up to a stop on the valve body. The way of the The sealing part is limited by a shoulder in the chamber because the upper end of the sealing part in the uncompressed state is designed in such a way that that on its upward movement it does not compress again

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 · D-4150 KREFELD - '"fg (ΟδίδΊ)? 28K22 u. <! Ö469 * j [(jj |« £ 3578

can be mated. The sealing part remains concentric
under the action of a section engaging therein
of the venture.

Every time you try to refill the cylinder, the result will be
the following relationships. The gas enters
the channel of the line connection and also into the
central chamber, it being also down to the upper one
Area of the sealing part arrives and this accordingly
the resulting pressure differences downwards
presses.

The following is a shown in the drawing
Embodiment of the invention explained; show it:

Fig. 1 a longitudinal section through an inventive \ valve during filling of the pressure vessel,

I Fig. 2 the object of FIG. 1 in closed i

Position, |

3 shows the object of FIG. 1 in a function- |

Position, in attempting to refill the container Druckbe- i, sets in,

4 shows a perspective illustration of a sealing part ,

Fig. 5 partially shows a section through the valve and
its line connection.

In Fig. 1 is a pressure vessel 100 or a pressure system
shown, which is provided with a valve 102,

PATENT ADVERTISER DR. STARK ■ MOERSER STR. 140 · D-4150 KREFELD 'fg> (Q2151J 28J! 22 l £ 2.04 * ^ 9. ' ■ Jift 853570

the filling and emptying of the pressure vessel allows, but not the refilling of the pressure vessel 100. The valve 102 can be on the pressure vessel 100 be fastened by welding, screw connections or in some other way, as in Fig. 1 at 104 is shown. The valve 102 has a housing 106 with a central bore 108. The hole 108 is in communication with the interior of the pressure vessel 100. The central bore 108 includes a uppermost section or a head chamber 110, an upper chamber 112, a middle chamber 114 as well as a lower chamber 116. The upper chamber 112 has a smaller diameter than the middle chamber 114. The middle chamber 114 has a larger diameter than the lower chamber 116. In the transition area between the upper chamber 112 and the middle chamber 114 is a flat, horizontally circumferential shoulder 118. Between the middle chamber 114 and the lower chamber 116 there is also a flat, horizontally encircling one Shoulder 120 formed. The shoulder 120 goes into the lower chamber 116 with a sharp edge 122 above. The sharp edge 122 serves as a valve seat. A side line connection 124 has a Over its length extending bore 126, which directly in the lower region of the bore 108 or the middle Chamber 114 opens. The line connection 124 has an external thread for connecting a line, not shown, which carries a pressurized medium, usually pressurized gas. Any other suitable connection means can be used to introduce externally compressed gas into the line connection 124.

A wall portion 128 of the housing 106 encloses the head chamber 110, which has a larger diameter

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 D-4150 KREFELD. ' Tg " (02151) 128652 ul 2041 * 9. ■ {g)! 853578

than the upper chamber 112 has. The wall section 128 can be thinner than the wall of the rest of the housing 106 because it is not exposed to the pressure of the pressurized gas 1s> t. The wall section 128 has an internal thread. A valve body 130 has a stem 132 and a handle 134. The handle 134 is at the top End of the shaft 132 attached. The middle part of the shaft 132 has a portion 136 with a larger Diameter and external thread, which in the internal thread

ι of the wall section 128 is screwed in. Accordingly

the valve body 130 can be screwed into the central bore 108 with the aid of the handle 134, moving up and down within head chamber 110 and upper chamber 112. An o-ring 138

Is a circumferential groove 140 near the lower end of the shaft arranged. The O-ring 138 can be made of any suitable compliant material, e.g. • us rubber. An upper lip 142 of the wall portion 148 is thinner than the internally threaded one Part of this wall section 128. After the valve body 1n has been inserted into the central bore 108, For example, the lip 142 of the wall portion 128 is bent against the valve body 130, as shown in FIG. 1 Is to limit upward movement of the larger portion 136 of shaft 134. the Bent lip 142 also prevents the valve body 130 from being easily removed from the bore 108 of the housing 106 and enables simple and economical manufacture of the valve 102.

However, other means can also be used to place the valve body 130 in the central bore 108 to keep. For example, the upper end of the housing 106 may be externally threaded, one internally threaded provided cap (not shown) is unscrewed, which has a central hole through which

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 ■ D-4150 KREFELD ' ¹ ^ [02 * 1 S3)' £ β22Ϊ u.j204ß9. · * [13 ^ 53578

- 11 the shaft 134 extends.

The threaded portion of the head chamber 110 has a height that is dimensioned to accommodate the O-ring 138 is located in the upper chamber 112. The O-ring 138 is clamped between the wall of the upper chamber 112 and the shaft 134 and seals as a result, between these two components hermetically against compressed gas.

In Fig. 4, a sealing part 144 is shown which «In a cylindrical body 146 and adjoining it Has upper wings or arms 148. Preferably, the sealing member 144 has four arms 148, it can but also have any suitable number of arms 148. The arms 148 extend upward from the body 146 and to the outside, as shown in FIG. Slots 150 separate the arms 148 from one another. the Slots 150 extend the full length of the arms to the body 146. At the ends of the arms 148 are circumferential ribs 154, the peripheral edge 152 of which is preferably flat and is oriented vertically so that this edge rests tightly against the wall of the upper chamber 112 when the sealing part 144 compressed in the upper Chamber 112 is (Fig. 1). The front edge of the ribs 154 of the arms 148 is also preferably flat. The diameter across the face end of the arms 148 when not compressed is larger than the diameter of the upper chamber 112 (Fig. 3). The bottom of the sealing part 144 is flat. The edges 156 of the bottom are tapered so that they can seal with the circumferential edge 122. (Fig. 3) In a cylindrical hole in the middle of the body 146 is a peg 158. The hole extends not through the entire body 146, but

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 · D-4150 KREFELD · ■. "G" (qZI ξ1); 28322 u; 2 £ M69. · Cffi.853578

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ends at its bottom. The pin 158 is in one piece formed with body 146 and has a smaller diameter than the hole in body 146 so that the Pin 158 is surrounded by an annular slot 160. The pin 158 extends upwardly over out the body 148 to a point that is flush with the ribs 154 of the arms 148. The upper face of the pin 158 is flat.

A tube 162 extends from the bottom of the shaft 134.

The tube 162 rotatably engages the annular slot 160 of the body 146, such as in particular from Fig. 2 can be seen. The play of the tube 162 is small, but allows the pin 158 in the tube 162 slides up and down, as shown in FIG. 3.

The sealing part 144 consists of a compressible one and resilient, i.e. elastic material, in particular made of plastic material.

When assembling the valve 102, the sealing part becomes 144 is inserted into the head chamber 110 with the arms 148 facing upward. The shaft 134 is then in the central bore 108 is inserted so that the tube 162 engages over the pin 158. With the help of the shaft 134 then becomes the sealing member 144 in the upper chamber 112 pressed. The arms 148 remain directed upwards in order to prevent the sealing part 144 from shearing off do avoid. When the sealing part 144 in the upper Chamber 112 is reached, holds -'-. Τ provided with thread Section 136 d, of the shaft iJ ·: into the internal thread of the wall portion 128 of the housing. Now the handle can be turned and with it the sealing part 144 and the O-ring 138 can be pushed lightly into the upper chamber 112. Section 136 becomes complete

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 · D-4150 KREFELD · «J £> (021 51); 2 82; 22 y.'204§5 \ [g] '8.53o78

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screwed into the threaded part of the wall section 128. The various parts are then in a position in which the valve is open (Fig. 1). Afterward the upper lip 142 is bent inwardly around the portion 136 of the shaft 134 in the Secure head chamber 110. It is now difficult to get the sealing part out of the central bore 108 remove. The arms 148 of the sealing part 144 are compressed inwards. Because the arms 148 are yielding or are elastic, they exert a force against the wall of the upper chamber 112 and thereby prevent that the sealing part 144 into the middle chamber 114 drops even if valve 102 is dropped, before it is connected to the container 100.

The valve attached to the container 100 is initially open and in such a position that the container 100 can be filled (Fig. 1). That Pressurized gas flows through bore 126, middle chamber 114, and lower chamber 116 into the pressure vessel 100. When the pressure vessel 100 is filled, the handle 132 is rotated so that the sealing part 144 is pushed completely into the middle chamber 114. This will have the effect of being squeezed Arms 148 overcome. When the sealing part 144 located in the central chamber 114, the compressed resilient arms return to their original position Shape shown in FIG. Because the diameter of the outstretched arms 148 is greater than the diameter of the upper chamber 112, the sealing member 144 does not return to the upper chamber 112. Any upward pull or pressure against the sealing part 144 merely leads to the fact that the arms 148 are spread further. When the valve body 130 is withdrawn becomes, it is fundamentally impossible to

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 · D-4150 KREFELD "^ S" (021 51Ji 28252 ul Z04 "68. '· {Ε} 853578

to remove part 144 from the central bore 108. The sealing part 144 is so large that it can be pivoted away from the vertical axis by no more than a few angular degrees, even if the valve body 130 is removed from the central bore 108. Fig. Shows the valve in the closed position after the pressure vessel 100 has been filled. In order to remove a certain amount of compressed gas from the container 100 *, the handle 132 is rotated as far as necessary and thus the shaft 134 is moved outwards in order to remove the desired amount. The sealing member 144 is free to move up and down along the pin 158 in the tube 162 when the valve body 130 is in its up or open position. The withdrawal S ¹ IG from the pressure vessel 100 is ended when the valve body 130 ', n is rotated in the opposite direction and the shaft is moved inward until the sealing part 144 makes a sealing contact with the valve seat, as shown in FIG

Fig. 3 is shown. After all of the pressurized gas has been completely removed from the pressure vessel 100, valve 102 prevents any refilling and thus any further use of the pressure vessel 100. FIG. 3 shows how valve 102 prevents refilling with pressurized gas. Assuming that the ^valve body 130 has been rotated outward as far as possible (FIG. 3), the sealing part 144 can move freely up and down in the central chamber 114. Typically, the pressure vessel 100 is in an upright position and the sealing part 144 rests on the sealing seat 122. If someone tries to refill the pressure vessel 100, then the pressurized gas easily passes into the space above the sealing part 144 by way of the slots 150 and around the edges of the arms 148. As a result, a force acts on the top of the sealing part 144 which is greater than the force acting on the bottom of the sealing part 144 because

• «•• III ·· ····

PATENT Attorney Dfl. STRONG ■ MOERSER STR. 140 · D-4150 KREFELD Zg " (Q 2i 51 ί 2 88 52 lh 204 69. '■ ί5Λ 853578

the effective area on the top of the sealing part 144 is larger than the effective area on the underside of the sealing part 144. This is the Sealing part 144 pressed against valve seat 122. When the pressure vessel is turned upside down or on its side so that the sealing part 144 does not rest on the valve seat 122, as in the middle chamber 114 and the lower chamber 116 the flow of the pressurized gas creates a negative pressure that pushes the sealing part 144 against the valve seat 122 pulls if someone tries to refill the pressure vessel 100 via the line connection 124.

The O-ring 132 and the sealing part 144 as well as possibly the handle 132 are the only non-metallic ones Parts that can be made of materials that are chemically resistant to that in the pressure vessel included print media. The remaining parts of the valve 102 should be made of solid material, such as e.g. Steel are made. If corrosive pressurized gas is used, they should be made of stainless steel.

An important feature is the arrangement of the line connection 124 with bore 126 in the lower part of the central chamber 114 below the arms 148 of the sealing part 144 even if the sealing part 144 «Rests on the valve seat 122. In such an arrangement, the sealing part 144 disturbs the flow little or no print media.

The bottom surface 164 of the sealing part 144 provides a large outlet opening during removal the pressure vessel 100. The bottom surface 164, however, is not acted upon by the gas pressure when the experiment is made to refill the pressure vessel 100.

PATENT ADVOCATE DR. STARK · MOERSER STR. 140 · D-4150 KREFELD · f & (Θ21 61] J 28S22 .U! 204,69 '; J® 053578

5 shows a preferred embodiment of the line connection 166. A side outlet 168 is located ". located directly above the bottom of the middle chamber § 114. The outlet 168 consists of a stepped bore ΐ

with sections 170, 172 and 174 extending from the outside to X ₁

each have smaller diameters on the inside. The \

Line connector 166 has a horizontal bore |

176, which is connected to the middle chamber 114 via the |

Section 174 of outlet 168 is in communication. 1

The end 178 of the line connection 166 is conical j

beveled. The diameter of the pipe connection ■

166 is the diameter of the middle section .:

172 adapted, the beveled end 178 being _:

not about those between sections 170 and 172

formed step extends beyond. The line connection \

166 can be attached to housing 106 by welding

be, the annular groove formed by section 170!

can be used. I.

The use of a separate line connection |

166 requires additional effort to produce |

and when assembling as well as additional costs against |

on FIGS. 1 to 3 illustrated embodiments. I.

Claims (9)

Dr.-Ing. WALTE R SUR.K · .. ·.: .. · .. ··. · PATE NTANWALT Moerser Straße 140 D-4150 Krefeld 1 ° & (021 51) 28222 and 20469 CS 8 53 claims 1. Valve for a pressure vessel, marked by the following characteristics a) a housing (106) has a central bore (108) which has a lower chamber (116) whose diameter is smaller than the diameter of a central chamber (114) and it has an upper chamber (112) the diameter of which is smaller than the diameter the middle chamber (114), the housing (106) having a line connection (124), the one with the lower part of the middle chamber 114 communicates with the lower end of the housing (106) close to the pressure vessel (100) is connected in such a way that a connection between the pressure vessel J100) and the lower Chamber (116) exists. b) The line connection (124) has a bore (126) extending along its length and is located on the side of the housing (106) and overhangs the outlet (168) of the central one Chamber (114) in communication with the central bore (108), Deutsche Bank AG Kreteld 103/1525 BLZ 32O7OAS0; . ·. Spar ^ ass.er Kre / eld 3pS722, BLZ 32050000 · Postal check Eseen 4055 · «! BLZ 300KXM3 PATENT ADVOCATE DR. STARK · MOERSER STR. 140 · D-4150 KREFELD · Ίβ (0fcJ54) «28» 22 and «G46 & - '(Jg« 853578 c) a valve stem (134) is in the upper part of the central bore (108) arranged rotatably reciprocating and carries on its inner End of a tube (162) which extends into the middle part of the central bore (108), d) there is a resilient sealing part (144) «Us a body (146) with arms (148) extending from the body (146) upwards and nai.fi outwards extend, a recess (160) in the bottom area which ends in front of the bottom of the body (146), and a pin (158) which is arranged in the recess (160) and which is connected to the recess (160) forms an annular slot in which the tube (162) of the shaft (134) engages, wherein the arms (148) of the sealing part (144) are arranged compressed in the upper part of the central bore (108), as long as the Valve (102) is in the inactive or filling position, the sealing part (144) with The help of the stem (134) is brought into the central part of the bore (108) when the valve (102} is activated and then the sealing part (144) on a valve seat (122) between the lower and the middle part of the bore (108) and is arranged in the middle part of the pipe (108) as long as the valve (102) is closed or open for removal from the pressure vessel (100), and wherein the sealing part (144) even when trying to refill the pressure vessel (100) under the pressure of the pressure medium against the Vantil seat (122) is pressed. PATENT ADVERTISER DR. STARK · MOERSER StTR.Ji4Bf. ' D-4 * l50JktfEkEUD. · "^<£ gt '(02151) 28222 and 20469 · [Tx] 853578 2. Valve according to claim 1, characterized in that that the shaft (134) in the upper part of the bore (108) can be screwed in. 3. Valve according to claim 1, characterized in that that the shaft (134) has an outer handle (132) for turning. 4. Valve according to claim 1, characterized by an O-ring (138) which is in a circumferential groove of the shaft (134) is arranged in the area of the upper part of the bore (108) and with the wall of this upper one Part of the bore (108) seals. 5. Valve according to claim 1, characterized in that the sealing part (144) made of elastic plastic material consists. 6. Valve according to claim 1, characterized in that between the arms (148) of the body (146) vertical slots (150) are arranged. 7. Valve according to claim 6, characterized in that four vertical slots (150) and four resilient Arms (148) are provided. 8. Valve according to claim 1, characterized in that the pin extends to the level of the arms (148). 9. Valve according to claim 1, characterized in that the bottom of the sealing part (144) is tapered conically is.