DE2908684A1 - Drain pipe valve operating mechanism - has arm on closure disc raised and lowered by slider operated by rotating hand-wheel - Google Patents

Drain pipe valve operating mechanism - has arm on closure disc raised and lowered by slider operated by rotating hand-wheel

Info

Publication number
DE2908684A1
DE2908684A1 DE2908684A DE2908684A DE2908684A1 DE 2908684 A1 DE2908684 A1 DE 2908684A1 DE 2908684 A DE2908684 A DE 2908684A DE 2908684 A DE2908684 A DE 2908684A DE 2908684 A1 DE2908684 A1 DE 2908684A1
Authority
DE
Germany
Prior art keywords
valve
arm
lifting arm
counter
locked
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE2908684A
Other languages
German (de)
Inventor
Mauno Antero Kanto
Toivo Pulkkinen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asko Upo Oy
Original Assignee
Asko Upo Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asko Upo Oy filed Critical Asko Upo Oy
Publication of DE2908684A1 publication Critical patent/DE2908684A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/02—Shut-off devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2042—Special features or arrangements of the sealing
    • F16K1/2057—Special features or arrangements of the sealing the sealing being arranged on the valve seat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)

Abstract

The valve for large pipes for drains, swers etc., has a circular dished plate (9) which is swung upwards from a vertical closed position against a sealing ring (10) to a nearly horizontal open position. The plate is attached to an L shaped arm (8) which swings about a hinge pin above the plate. This arm is swung upwards and downwards by side extensions of a sleeve (3) which is raised and lowered inside the casing (11) by a threshold spindle (4) attached to the handwheel on top. The side extensions carry between them an upper pin (6) and lower pin (7) which act in the region of the bend of the arm (8) so as to swing it about its hinge.

Description

PATENTANWÄLTE *..··..*PATENT LAWYERS * .. ·· .. *

DR ANDPvF-T^SKI 4300 Essen, den 5. März 1979DR ANDPvF-T ^ SKI 4300 Essen, March 5, 1979

ÜR.-INC-. Ϊ-1ΟΝΚΕ (53 593/Ti^ÜR.-INC-. Ϊ-1ΟΝΚΕ (53 593 / Ti ^

DIPL.-IKG. GEiTHUYSENDIPL.-IKG. Spirituals

DR. MASCII 4J ESSEN, THEATERPLATZDR.MASCII 4J ESSEN, THEATER SQUARE

ASKO-UPO OY,ASKO-UPO OY, Pl. 99,Pl. 99,

SF-15 101 LahtiSF-15 101 Lahti

Stopp-, Gegen- und öffnungsventil für ein Rohrsystem, insbesondere für ein AbflussnetzStop, counter and opening valve for a pipe system, especially for a Drainage network

909837/0710909837/0710

Die vorliegende Erfindung betrifft ein Stopp-, Gegen- und Öffnungsventil für ein Rohrsystem, insbesondere für ein Abflussnetz, welches ein Ventilgehäuse und ein darin angeordnetes Stoppventilorgan und ein Gegenventilorgan umfasst, wobei das Stoppventilorgan und das Gegenventilorgan in ein einziges klappenförmiges Ventilorgan zusairmengestellt sind, das durch einen Hebearm an dem Körper des Ventilgehäuses gelagert ist und mit Hilfe von Einstellorganen in wenigstens einer Absperrstellung verriegelt werden kann.The present invention relates to a stop, counter and opening valve for a pipe system, in particular for a drainage network, which comprises a valve housing and a stop valve element arranged therein and a counter valve element, the stop valve element and the counter valve element Put together in a single flap-shaped valve member are, which is mounted by a lifting arm on the body of the valve housing and with the help of adjusting members in at least one shut-off position can be locked.

Bisher sind als obligatorische Stopp- und Gegenventile in Rohrsystemen und insbesondere in Abflussrohrnetzen sog. Abdämmventile verwendet worden. Ein solches Ventil besteht aus einem separaten Stoppventil von Schiebertyp, einem klappenartigen Gegenventil und einem Reinigungsgehäuse . So far, stop and counter valves have been mandatory in pipe systems and in particular so-called damming valves have been used in drainage pipe networks. Such a valve consists of a separate stop valve of slide type, a flap-like counter valve and a cleaning housing.

^ Ein solches Ventil weist jedoch u.a. folgende Nachteile auf:^ However, such a valve has the following disadvantages, among others:

- Es ist gross und schwer und deshalb teuer.- It is big and heavy and therefore expensive.

- Es besteht aus vielen leilen, weshalb viel abdichtende Flächen erforderlich sind.- It consists of many parts, which is why there are a lot of sealing surfaces required are.

- Die Klappe des Gegenventils ist nicht dicht und schliesst sich bei niedrigen Flüssigkeitsdrücken nicht.- The flap of the counter valve is not tight and does not close at low fluid pressures.

- Die Funktion des Stoppventilteiles ist unzuverlässig, weil zwischen dem Schieber und dem Gehäuse leicht Abfall zurückbleibt, weshalb sich das Ventil nicht gus schliesst.- The function of the stop valve part is unreliable because waste easily remains between the slide and the housing, which is why the valve does not close properly.

- Ein solches Ventil eignet sich für den Gebrauch in. z.B. Schutzräumen nicht, weil dem Ventil die Offenhaltungsmöglichkeit der Gegenventilklappe fehlt.- Such a valve is not suitable for use in e.g. shelters because the valve can be kept open the counter valve flap is missing.

Somit ist das Problem gewesen, eine Ventilanordnung zu schöpfen, die teils möglich einfach und gleichzeitig möglichst '',uverlässig wäre. Die Aufgabe dieser Erfindung ist, dieses Problem zu Hosen und die in vorbekannten Ventilkonstruktionen enthaltenen Missverhältnisse zu beseitigen. Diese Aufgabe ist erfindungsgemäss dadurch verwirklicht worden, dass das Stoppventilorgan und das Gegenventilorgan in ein einziges Ventilorgan zusammengestellt sind.So the problem has been to create a valve arrangement which is partly possible and at the same time as reliable as possible. The object of this invention is to solve this problem in pants and the in to eliminate the imbalances contained in previously known valve constructions. This object is achieved according to the invention been that the stop valve member and the counter valve member are combined in a single valve member.

Genauer gesagt ist für das erfindungsgemässe Ventil kennzeichnendMore precisely, it is characteristic of the valve according to the invention

909837/0710909837/0710

29Q8S8429Q8S84

dass das Ventil ein Hebeorgan umfasst, das angeordnet ist, den Hebearm zu tragen und das an den Einstellorganen so befestigt ist, dass das Ventilorgan in einer ganz offenen Stellung verriegelbar ist.that the valve comprises a lifting member which is arranged, the lifting arm to wear and which is attached to the adjustment members so that the valve member can be locked in a fully open position.

Durch die Erfindung werden u.a. folgende Vorteile erzielt:The invention achieves the following advantages, among others:

- Das Ventil ist, was seine Konstruktion anbelagt, einfach und sehr zuverlässig.- The valve is, whatever its construction, simple and very reliable.

- Die Zahl seiner Teile ist gering und es hat wenig abzudichtender Flächen.- The number of its parts is small and there is little that needs to be sealed Surfaces.

- Sein Format ist klein (nur etwa die Hälfte der heute verwendeten Abdämmventile).- Its format is small (only about half that in use today Dimming valves).

- Ein separater Stoppventilteil kann vermieden werden, weil eine manuelle· Absperrfunktion dem Gegenventil zugefügt worden ist.A separate stop valve part can be avoided because a manual shut-off function has been added to the counter valve.

- Das Ventil kann in geöffneter Stellung verriegelt werden.- The valve can be locked in the open position.

- Das Ventil ist auch billiger als die heute verwendeten Aufdämmventile. - The valve is also cheaper than the damming valves used today.

Die Erfindung wird unten mehr im Linzelnen und zwar mit Bezig auf ein Ausführungsbeispiel gemäss der beigefügten Zeichnung betrachtet.The invention is more detailed below, namely with Bezig considered an embodiment according to the accompanying drawing.

Figur 1 stellt als Seitenschnitt eine Ausführungsform des erfindungsgemässen Ventils dar.FIG. 1 shows, as a side section, an embodiment of the invention Valve.

Figur 2 stellt als Querschnitt eine Ventilkonstruktion gemäss der Figur 1 dar.FIG. 2 shows a valve construction according to FIG. 1 as a cross section.

Das Ventil gemäss dem Auoführungsbeispiel umfasst eine in einem Ventilgehäuse 9 bewegliche Klappe S, die an einem Ende eines an dem Körper 1 des Ventilgehäuses gelagerten Hebearms 8 angeordnet ist, welche Klappe normalerweise eine Gegenströmung verhindert. Die Klappe 9 kann in einer den Strömungskanal völlig schliessenden sperrender Stellung (Figur 1) durch ein auf den Hebearm wirkendes Einstellorgan 3 verriegelt werden. Die Klappe 9 kann auch in einer geöffneten Stellung mit Hilfe eines im Einstellorgan 3 befindlichen, den Hebearm 8 hochhebenden Dornes oder Zapfens 7 verriegelt werden.The valve according to the embodiment comprises a flap S which is movable in a valve housing 9 and which is arranged at one end of a lifting arm 8 which is mounted on the body 1 of the valve housing and which flap normally prevents a counterflow. The flap 9 can be locked in a blocking position (FIG. 1) that completely closes the flow channel by means of an adjusting element 3 acting on the lifting arm. The flap 9 can also be locked in an open position with the aid of a pin or pin 7 which is located in the setting member 3 and lifts the lifting arm 8.

Die Funktion des Ventils geht teils durch die Figur 1, wo sich das Einstellorgan in der unteren Stellung befindet, durch die Figur 2, wo sich das Einstellorgan 3 in der oberen Stellung befindet, hervor. In der Montierungsphase des Ventiles ist der Dorn 7 des Einstellorganes 3 beseitigtThe function of the valve can be seen in part from FIG. 1, where the adjusting element is in the lower position, and from FIG. 2, where the adjusting element 3 is in the upper position. In the assembly phase of the valve, the mandrel 7 of the setting element 3 is eliminated

909837/0710909837/0710

29086042908604

I ff · · fI ff · f

worden. Schieberartig kann das in einem Zylinderteil 11 befindliche verschiebbare Einstellorgan 3 entweder in die obere oder die untere Stellung durch Dreb"ng eines Dübels k durch ein Handrad 5 gebracht werden. Wenn sich das Einstellorgan 3 in der unteren Stellung befindet, befindet sich auch die Schliessklappe 9 in der unteren Stellung und liegt an der plastischen Abdichtung 10. Im Beispielsfall ist der Hebearm 8 annähernd L-förmig, und der untere leil des Einstellorganes 3 ist angeordnet, gleitend in Eingriff mit dem Hebearm 8 auf dessen beiden Seiten zu kommen.been. The displaceable adjusting element 3 located in a cylinder part 11 can be moved like a slide into either the upper or the lower position by turning a dowel k by means of a handwheel 5. When the adjusting element 3 is in the lower position, the closing flap 9 is also located in the lower position and lies against the plastic seal 10. In the example, the lifting arm 8 is approximately L-shaped, and the lower part of the adjusting member 3 is arranged to come slidingly into engagement with the lifting arm 8 on both sides thereof.

Wenn die Flüssigkeit normal strömt (in Figur 1 in der Pfeilrichtung A von links nach rechts), öffnet der Flüssigkeitsdruck d?e Absperrklappe 9, die mit Hilfe des Hebearms 8 an dem Körper 1 gelagert ist.When the liquid is flowing normally (in Figure 1 in the direction of the arrow A from left to right), the liquid pressure opens the butterfly valve 9, which is mounted on the body 1 with the aid of the lifting arm 8.

In der Abdämmstellung oder in der unnatürlichen Stellung, wo die Flüssigkeit dazu geneigt ist, in entgegengesetzter Richtung zu strömen, sperrL-der Flüssigkeitsdruck das Ventil durch Andrücken der Abdichtung 10 gegen die Klappe 9· Wenn das Schliessen des Ventils erwünscht ist, wird das Handrad 5 gedreht, wobei der Dübel 4 das Einstellorgan 3 abwärts drückt. Ein auf dem Einstellorgan 3 befindlicher Zapfen 6 bringt die Klappe 9 durch Vermittlung des Heberarms 8 zum Anliegen gegen die Abdichtung 10.In the damming position or in the unnatural position where the liquid tends to flow in the opposite direction, The liquid pressure locks the valve by pressing the seal 10 against the flap 9 · When it is desired to close the valve, the handwheel 5 is turned, whereby the dowel 4 pushes the adjusting element 3 downwards. A pin 6 located on the adjusting member 3 brings the flap 9 to bear against the seal 10 through the intermediary of the lifting arm 8.

Die oben beschriebene Ventilkonstruktion eignet sich in der vorgelegten Form für ihren üblichen Zweck, z.B. als Ausdämmventil in Grundwasserbrunnen .The valve construction described above is suitable in the one presented Form for their usual purpose, e.g. as a dampening valve in groundwater wells .

Das erfindungsgemässe Ventil eignet sich ferner für Sonderzwecke, z.B. in Schutzräumen. Somit wird in solchen Fällen, wo die Klappe in geöffneter Stellung verriegelt werden muss, in der Montierungsphase des Ventils, der auf der Einstellörsan.3 befindliche Dorn 7 nicht entfernt. Das Ventil kann hierbei durch Drehen des Handrades 5 in geöffneter Stellung gebracht werden, welches Rad das Einstellorgan 3 nut der Hilfe des Domes 4 hochhebt. Der im Einstellorgan 3 befindliche Dorn 7 hebt durch Vermittlung des Hebearms 8 die Klappe 9 hoch. Bei Bedarf kann das Ventil auch in einer, dem meist üblichen Zweck entsperchenden Weise verriegelt werden.The valve according to the invention is also suitable for special purposes, e.g. in shelters. Thus, in those cases where the flap is in must be locked in the open position during the mounting phase of the Valve, the mandrel 7 located on the setting örsan.3 not removed. The valve can be opened by turning the handwheel 5 be brought, which wheel the adjusting member 3 nut the help of the dome 4 lifts. The mandrel 7 located in the setting element 3 lifts through mediation of the lifting arm 8, the flap 9 high. If necessary, the valve can also be locked in a manner that corresponds to the most common purpose.

Im Rahmen der Erfindung können auch viele, von den oben beschriebenen Ausführungsbeispielen abweichende Lösungen gedacht werden. Somit kann der Hebearm 8 z.B. bogenförmig sein. Ein Hebearm 8 sit nicht einmal unbedingtWithin the scope of the invention, many of those described above can also be used Embodiments deviating solutions are thought. Thus, for example, the lifting arm 8 can be arcuate. A lifting arm 8 does not even necessarily sit

909837/0710909837/0710

29Q86&429Q86 & 4

erfordert, wenn das Einstellorgan 3 eine drehbare Konstruktion hat und der Klappe 9 direkt angeordnet ist. Ferner kann auch gedacht werden, dass die Klappe 9 in jeder beliebigen Stellung a-tiscren der geschlossenen und geöffneten Stellung verriegelt werden kann.requires when the adjusting member 3 has a rotatable construction and the flap 9 is arranged directly. Furthermore, it can also be thought that the flap 9 is closed in any position and can be locked in the open position.

909837/0710909837/0710

Claims (2)

Patentansprüche:Patent claims: Stopp-, Gegen- und Öffnungsventil für ein Rohrsystem, insbesondere für ein Abflussnetz, welches ein Ventilgehäuse und ein darin angeordnetes Stoppventilorgan und ein Gegenventilorgan umfasst, wobei I das Stoppventilorgan und das Gegenventilorgan in ein einziges klappenl| förmiges Ventilorgan zusammengestellt sind, das durch einen Hebearm an fl dem Körper des Ventilgehäuses gelagert ist und mit Hilfe von Einstellig organen in wenigstens einer Absperrstellung verriegelt werden kann, feiStop, counter and opening valve for a pipe system, in particular for a drainage network which comprises a valve housing and a stop valve element arranged therein and a counter valve element, wherein I fold the stop valve element and the counter valve element into a single valve | shaped valve member are put together by a lifting arm fl is mounted on the body of the valve housing and with the help of single digits organs can be locked in at least one shut-off position, fei I dadurch gekennzeichnet, dass das Ventil ein HebeorganI characterized in that the valve is a lifting element P ■ (6) umfasst, das angeordnet ist, den Hebearm (8) zu tragen und das anP ■ (6), which is arranged to carry the lifting arm (8) and the II den Einstellorganen (3-7) so befestigt ist, dass das Ventilorgan (9)II is attached to the setting elements (3-7) in such a way that the valve element (9) I in einer ganz offenen Stellung verriegelbar ist. ff'I can be locked in a fully open position. ff ' p -. p -. 2. Ventil gemäss dem Patentanspruch 1, dadurch g e k e η η -2. Valve according to claim 1, thereby g e k e η η - j| zeichnet, dass das Hebeorgan (6) aus einem Zapfen oder ähnlichemj | shows that the lifting element (6) consists of a pin or the like 'I ■ besteht.'I ■ exists. ψ 3· Ventil gemäss einem der Patentansprüche 1 bis 35 dadurch ψ 3 · valve according to one of claims 1 to 3 5 thereby ffff U gekennzeichnet, dass die Einstellorgane (3 bis 7) einen U marked that the adjusting elements (3 to 7) one ei*egg* II gleitend einzustellenden Druckschieber (3) umfasst. Vi II includes sliding pressure slide (3). Vi ·;;ϊ 4. Ventil gemäss einem der Patentansprüche 1 bis 4, dadurch·; ; ϊ 4. Valve according to one of claims 1 to 4, thereby I gekennzeichnet, dass der Hebearm (8) annähernd L-förmig ist.I marked that the lifting arm (8) is approximately L-shaped. jf 5· Ventil gemäss einem der Patentatisprüche 2 bis 4, dadurchjf 5 · valve according to one of the patent claims 2 to 4, thereby Yj1 gekennzeichnet, dass der Hebearm (8) bogenförmig ist. Yj 1 indicated that the lifting arm (8) is arcuate. f| 6. Ventil gemäss einem der Patentansprüche 4 bis 6., dadurchf | 6. Valve according to one of the claims 4 to 6, characterized $ gekennzeichnet, dass der Druckschieber (3) angeordnet ist,$ marked that the pressure slide (3) is arranged, |i mit dem Hebearm (8)auf dessen beiden Seiten in Eingriff zu kommen.| i to come into engagement with the lifting arm (8) on both sides thereof. i;'i 7. Ventil gemäss Patentanspruch 1, dadurch gekennzeich-i ; 'i 7. Valve according to claim 1, characterized in that ;..: net, dass das Ventilorgan (9) in einer beliebigen Stellung zwischen; .. : net that the valve member (9) in any position between I] einer geschlossenen und einer geöffneten Stellung verriegelt werden kann. I] can be locked in a closed and an open position. 909837/0710909837/0710 -*V .ι- * V .ι
DE2908684A 1978-03-08 1979-03-06 Drain pipe valve operating mechanism - has arm on closure disc raised and lowered by slider operated by rotating hand-wheel Withdrawn DE2908684A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI780751A FI780751A (en) 1978-03-08 1978-03-08 STOPP- MOT- OCH OEPPNINGSVENTIL FOER ROERSYSTEM I SYNNERHET AVLOPPSSYSTEM

Publications (1)

Publication Number Publication Date
DE2908684A1 true DE2908684A1 (en) 1979-09-13

Family

ID=8511538

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2908684A Withdrawn DE2908684A1 (en) 1978-03-08 1979-03-06 Drain pipe valve operating mechanism - has arm on closure disc raised and lowered by slider operated by rotating hand-wheel

Country Status (3)

Country Link
DE (1) DE2908684A1 (en)
FI (1) FI780751A (en)
SE (1) SE7901978L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047482A2 (en) * 1980-09-04 1982-03-17 Firma Helmuth Dallmer Drain with clearing aperture and removable non-return valve
CN102563142A (en) * 2012-02-08 2012-07-11 张关池 Improved single-disc adjustable check valve
CN103195953A (en) * 2013-03-26 2013-07-10 大丰市奥凯流体机械有限公司 Swing check valve
CN106236588A (en) * 2016-08-31 2016-12-21 浙江春宝胶囊有限公司 A kind of low cost quantitative automatic tapping mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047482A2 (en) * 1980-09-04 1982-03-17 Firma Helmuth Dallmer Drain with clearing aperture and removable non-return valve
EP0047482A3 (en) * 1980-09-04 1982-05-19 Firma Helmuth Dallmer Drain with clearing aperture and non-return valve
CN102563142A (en) * 2012-02-08 2012-07-11 张关池 Improved single-disc adjustable check valve
CN103195953A (en) * 2013-03-26 2013-07-10 大丰市奥凯流体机械有限公司 Swing check valve
CN106236588A (en) * 2016-08-31 2016-12-21 浙江春宝胶囊有限公司 A kind of low cost quantitative automatic tapping mechanism

Also Published As

Publication number Publication date
FI780751A (en) 1979-09-09
SE7901978L (en) 1979-09-09

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