WO2012076240A1 - Device for automatic closure of control valves in separable connection units for flexible pipes. - Google Patents

Device for automatic closure of control valves in separable connection units for flexible pipes. Download PDF

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Publication number
WO2012076240A1
WO2012076240A1 PCT/EP2011/068633 EP2011068633W WO2012076240A1 WO 2012076240 A1 WO2012076240 A1 WO 2012076240A1 EP 2011068633 W EP2011068633 W EP 2011068633W WO 2012076240 A1 WO2012076240 A1 WO 2012076240A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
sector
valve
fluid
closing
Prior art date
Application number
PCT/EP2011/068633
Other languages
French (fr)
Inventor
Lorenzo Bormioli
Original Assignee
Mib Italiana S.P.A.
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
Priority to DK11782574.5T priority Critical patent/DK2649359T3/en
Priority to MEP-2015-167A priority patent/ME02197B/en
Priority to KR1020137016266A priority patent/KR101938786B1/en
Priority to RU2013131030/06A priority patent/RU2575539C2/en
Application filed by Mib Italiana S.P.A. filed Critical Mib Italiana S.P.A.
Priority to BR112013014040A priority patent/BR112013014040B8/en
Priority to RS20150638A priority patent/RS54295B1/en
Priority to US13/992,047 priority patent/US8991782B2/en
Priority to CN201180059644.2A priority patent/CN103270361B/en
Priority to SI201130623T priority patent/SI2649359T1/en
Priority to PL11782574T priority patent/PL2649359T3/en
Priority to EP11782574.5A priority patent/EP2649359B1/en
Priority to ES11782574.5T priority patent/ES2548687T3/en
Priority to JP2013541267A priority patent/JP5810169B2/en
Publication of WO2012076240A1 publication Critical patent/WO2012076240A1/en
Priority to HRP20151070TT priority patent/HRP20151070T1/en

Links

Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/1007—Couplings closed automatically when broken
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1654—Separable valve coupling or conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/9029—With coupling

Definitions

  • the present invention relates to a device for automatic closure of control valves in separable connection units for transferring pipes of fluid products, in particular petroleum products which include the automatic separation of the tubes themselves in case of strong axial traction stress and/or sudden high pressure.
  • connection units of the tubes themselves which consist of two separable parts, each provided with a respective control valve which automatically closes upon separation to limit the spillage of product into the sea, with consequent less pollution of the same.
  • connection units are positioned on the part of the flexible tube positioned in the sea and have the primary objective of protecting the tube, and, more in general, the connection line, in case of anomalous situations which cause excessive pulling on the tube or excessive pressure on the line.
  • Such anomalous situations may be: tanker, or, more in general, petroleum installation (FPSO) which breaks away and drifts off, rough sea causing traction on the tube beyond the limits, boat knocking into the tube dragging it away and creating excessive loads on the same, rapid closing of the downstream flow valve or any other reason causing excessive axial load and/or pressure increase.
  • FPSO petroleum installation
  • control units currently available are made so that the control valves are closed after the separation of the two parts of the connection unit automatically, i.e. without control by an operator in the aforesaid situations.
  • Separable connection units which comprise fluid control valves of the variable sector type, i.e. formed by a plurality of slices or petals, which are made to turn between an opening position, in which the slices or petals are substantially parallel to the direction of flow of the petroleum product, and a closing position, in which the slices or petals converge transversally to the axis of the unit to completely block the flow of product.
  • the movement from the opening position to the closing position occurs under the bias of elastic means when appropriate withholding means, e.g. an inner axially removable sleeve, cease to exert the withholding action following the axial traction stress impressed on the connection unit.
  • Fluid dynamic brakes e.g. cylinders subjected to the pressure of the fluid product present in the tube, appropriately slow down the closing speed of the upstream valve to avoid excessive pressure, called water hammer, determined by the thrust of the elastic means and of the pressurized fluid.
  • the known fluid dynamic brakes comprise reduced section passage ducts which have the drawback of getting obstructed by effect of the diit present in the brake fluid.
  • a device characterized in that it comprises, for every sector of the control valve upstream of the direction of the fluid flow, a slidable body operating on said valve sector to cause closing and opening rotation thereof, elastic means housed in a first chamber to activate said sliding body in a direction suitable to cause the closing rotation of said valve sector, a braking fluid housed in a second chamber to brake the movement of said sliding body in the closing direction of said valve sector and fluid dynamic communication means between said chambers to permit the controlled transfer of said braking fluid from the second chamber to the first chamber during the movement of said sliding body in the direction of closure of said valve sector, said fluid dynamic communication means comprising a cartridge element inserted in an axial housing of the sliding body and defining therewith an external passage duct of the braking fluid which has a helical shape with variable extension according to the required closing speed of said valve sector.
  • the aforesaid helical portion of the cartridge element makes it possible to obtain a valid braking effect with much larger passage duct section, which cannot be obstructed in practice by the dirt present in the braking fluid.
  • figure 1 shows the whole, partially sectioned in axial direction, of a connection unit for flexible tubes which includes automatic closing devices of the control valves;
  • figure 2 shows a perspective exploded view of the control valve upstream of the connection unit in figure 1 ;
  • figure 3 shows a perspective exploded view of the control valve downstream of the connection unit in figure 1 ;
  • figure 4 shows an enlarged detail, sectioned as shown in figure 1, of a device according to the present invention, used for closing a rotational sector of the control valve upstream of the connection unit in figure 1 ;
  • figure 5 shows the same device during the step of closing of the aforesaid rotational sector
  • figure 6 shows an enlarged detail, sectioned in axial direction, of a device used for closing a rotational sector of the control valve downstream of the connection unit in figure 1 ;
  • figure 7 shows the device in figure 6 during the step of closing of the aforesaid rotational sector
  • figure 8-10 show possible embodiments of the regulation cartridge of the closing speed of the rotational sectors of the upstream control valve.
  • Figure 1 shows a connection unit for flexible tubes, which comprises two separable parts or bodies 1 and 2, respectively, upstream and downstream in the direction of flow of the transported fluid product.
  • the two parts 1 and 2 are connected by burst screws 3, which in case of strong traction stress (equal to or higher than the setting load) break making it possible to separate the two parts.
  • a cylindrical sliding sleeve 4 (fig. 1), which is automatically and axially removable from the connection unit when the two parts of the unit are separated, is arranged in the connection unit.
  • the cylindrical sleeve 4 normally maintains two rotational sector valves 5-5' in the opening position, each of which consists of two series of petals or slices 6-7 and 6'-7' of different dimensions, which can rotate about respective axes 8-8' between the opening position of the figures 1-4 and 6 and the closing position in figures 5 and 7.
  • Each rotational sector 6-7 of the control valve 5 located upstream in the direction of flow of the fluid product is rotational about the axis 8 thereof under the basis of a respective automatically closing device, indicated by reference numeral 9 as a whole.
  • Each device 9 comprises within a containment body 10-11, a fixed body 12 and a mobile body 13 axially sliding with respect to the fixed body 12 (figures 4 and 5).
  • a first chamber 14 is defined inside the fixed body 12 which extends within a first part of the mobile body 13 to the transversal wall 15, which abuts against a control heel
  • the spring 17 is housed within the first chamber 14, which can extend from the compressed configuration in figure 4 to the elongated condition in figure 5.
  • the elongation of the spring 17 occurs automatically when the sleeve 4, according to the methods explained in Italian patent application MI2009A002146, is removed axially from inside the valve 5 ceasing the withholding action thereof on the rotational sectors 6 and 7 of the valve itself.
  • a second chamber 18 is defined on the opposite end of the sliding body 13 in which braking fluid, of approximately chosen viscosity, is normally accommodated.
  • the two chambers 14 and 18 communicate by means of a passage duct 19, which has an widened inlet part 20 in which a flow speed regulation cartridge 21 is inserted, which has a cylindrical part 22 on an inlet side 23 provided with a helical external groove 24, Examples of cartridges 21 with different extensions of the external grooves 24 are shown in figure 8-10.
  • the described communication between the chambers 14 and 18 has the effect of causing the leakage of braking fluid from chamber 18 to chamber 14 during the movement of the sliding body 13 from the position in figure 4 to that in figure 5, caused by the thrust of the spring 17 in absence of the sleeve 4 and, during the closing rotation of the valve sectors 6-7, by the pressurized fluid which flows through the union part 1.
  • the passage of braking fluid slows down the closing speed of the valve avoiding abrupt impacts which could damage the rotational sectors of the valve itself. Sudden increases of pressure, known as water hammers, are thus avoided.
  • the passage speed, and thus the closing speed of the single rotation petals depends on the section of the passage duct 19, the diameter of the cylinder part 22 of the cartridges 21 and the extension of the helical external grooves 24 of the cartridges 21 and may be modified by replacing the cartridges with others of different diameter and with different grooves. It is thus possible to envisage the use of cartridges of one type for rotational sectors 6 and cartridges of another type for rotational sectors 7, so as to determine different rotation speeds and thus closing speeds of the single sectors of the valve 5, This has the purpose of having a closure which limits the exit of product to the maximum during the closing of the rotation sectors or petals of the control valve, thus limiting the pressure peak generated by the water hammer to acceptable levels.
  • the rotational sectors 6'-7* of the control valve 5' downstream of the direction of flow of the fluids are, in turn, provided with automatic closing devices 9' which similarly have fixed bodies 12', sliding bodies 13' and normally compressed springs 17' which through the heels 16' determine the rotation, and thus the automatic closure, of the various rotational sectors 6-7 of the valve 5' in case of removal of the sleeve 4.
  • a braking effect similar to that determined by the passage of braking fluid from chamber 18 to chamber 14 is missing instead.
  • the braking effect is indeed determined by the pressurized fluid present in the union part 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Pipe Accessories (AREA)
  • Details Of Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A device for automatic closure of control valves in separable connection units for flexible pipes is described. The device comprises, for every sector (6-7) of the control valve (5) upstream of the direction of the fluid flow, a slidable body (13) operating on said valve sector (6-7) to cause closing and opening rotation thereof, elastic means (17) housed within a first chamber (14) to activate said sliding body (13) in a direction suitable to cause the closing rotation of said valve sector (6-7), a braking fluid housed in a second chamber (18) to brake the movement of said sliding body (13) in the closing direction of said valve sector (6-7) and fluid dynamic communication means (19, 20, 21) between said chambers (14, 18) to permit the controlled transfer of said braking fluid from the second chamber (18) to the first chamber (14) during the movement of said sliding body (14) in the direction of closure of said valve sector (6-7). The aforesaid fluid dynamic communication means (19, 20, 21) comprise a passage duct (19) with an enlarged part (20) and a cartridge inserted in said enlarged part (20) having a grooved part (23) with external grooves (24) of variable length.

Description

"Device for automatic closure of control valves in separable connection units for flexible pipes".
The present invention relates to a device for automatic closure of control valves in separable connection units for transferring pipes of fluid products, in particular petroleum products which include the automatic separation of the tubes themselves in case of strong axial traction stress and/or sudden high pressure.
The sea transfer of petroleum products from petrochemical installation, from platform, from tanker to tanker, from tanker to land installation and vice versa notoriously occurs by means of flexible tubes and connection units of the tubes themselves which consist of two separable parts, each provided with a respective control valve which automatically closes upon separation to limit the spillage of product into the sea, with consequent less pollution of the same. These connection units are positioned on the part of the flexible tube positioned in the sea and have the primary objective of protecting the tube, and, more in general, the connection line, in case of anomalous situations which cause excessive pulling on the tube or excessive pressure on the line. Such anomalous situations may be: tanker, or, more in general, petroleum installation (FPSO) which breaks away and drifts off, rough sea causing traction on the tube beyond the limits, boat knocking into the tube dragging it away and creating excessive loads on the same, rapid closing of the downstream flow valve or any other reason causing excessive axial load and/or pressure increase.
The control units currently available are made so that the control valves are closed after the separation of the two parts of the connection unit automatically, i.e. without control by an operator in the aforesaid situations.
Separable connection units are also known which comprise fluid control valves of the variable sector type, i.e. formed by a plurality of slices or petals, which are made to turn between an opening position, in which the slices or petals are substantially parallel to the direction of flow of the petroleum product, and a closing position, in which the slices or petals converge transversally to the axis of the unit to completely block the flow of product. The movement from the opening position to the closing position occurs under the bias of elastic means when appropriate withholding means, e.g. an inner axially removable sleeve, cease to exert the withholding action following the axial traction stress impressed on the connection unit. Fluid dynamic brakes, e.g. cylinders subjected to the pressure of the fluid product present in the tube, appropriately slow down the closing speed of the upstream valve to avoid excessive pressure, called water hammer, determined by the thrust of the elastic means and of the pressurized fluid.
The known fluid dynamic brakes comprise reduced section passage ducts which have the drawback of getting obstructed by effect of the diit present in the brake fluid.
It is the object of the present invention to make a device for automatic closure of control valves of the slices or petals type or, more in general, with rotatable sectors, which integrates in single unit the two elastic thrust and fluid dynamic functions without displaying the drawbacks of the pipes of reduced section according to the prior art.
In accordance with the invention, such an object is reached by a device characterized in that it comprises, for every sector of the control valve upstream of the direction of the fluid flow, a slidable body operating on said valve sector to cause closing and opening rotation thereof, elastic means housed in a first chamber to activate said sliding body in a direction suitable to cause the closing rotation of said valve sector, a braking fluid housed in a second chamber to brake the movement of said sliding body in the closing direction of said valve sector and fluid dynamic communication means between said chambers to permit the controlled transfer of said braking fluid from the second chamber to the first chamber during the movement of said sliding body in the direction of closure of said valve sector, said fluid dynamic communication means comprising a cartridge element inserted in an axial housing of the sliding body and defining therewith an external passage duct of the braking fluid which has a helical shape with variable extension according to the required closing speed of said valve sector.
The aforesaid helical portion of the cartridge element makes it possible to obtain a valid braking effect with much larger passage duct section, which cannot be obstructed in practice by the dirt present in the braking fluid.
A currently preferred practical embodiment of the present invention is shown by way of non-limitative example in the accompanying drawings, in which:
figure 1 shows the whole, partially sectioned in axial direction, of a connection unit for flexible tubes which includes automatic closing devices of the control valves;
figure 2 shows a perspective exploded view of the control valve upstream of the connection unit in figure 1 ;
figure 3 shows a perspective exploded view of the control valve downstream of the connection unit in figure 1 ;
figure 4 shows an enlarged detail, sectioned as shown in figure 1, of a device according to the present invention, used for closing a rotational sector of the control valve upstream of the connection unit in figure 1 ;
figure 5 shows the same device during the step of closing of the aforesaid rotational sector;
figure 6 shows an enlarged detail, sectioned in axial direction, of a device used for closing a rotational sector of the control valve downstream of the connection unit in figure 1 ;
figure 7 shows the device in figure 6 during the step of closing of the aforesaid rotational sector;
figure 8-10 show possible embodiments of the regulation cartridge of the closing speed of the rotational sectors of the upstream control valve.
Figure 1 shows a connection unit for flexible tubes, which comprises two separable parts or bodies 1 and 2, respectively, upstream and downstream in the direction of flow of the transported fluid product.
The two parts 1 and 2 are connected by burst screws 3, which in case of strong traction stress (equal to or higher than the setting load) break making it possible to separate the two parts.
A cylindrical sliding sleeve 4 (fig. 1), which is automatically and axially removable from the connection unit when the two parts of the unit are separated, is arranged in the connection unit.
The cylindrical sleeve 4 normally maintains two rotational sector valves 5-5' in the opening position, each of which consists of two series of petals or slices 6-7 and 6'-7' of different dimensions, which can rotate about respective axes 8-8' between the opening position of the figures 1-4 and 6 and the closing position in figures 5 and 7.
The functions and operative modes of the sleeve 4 are, for example, described in Italian patent application MI2009A002146 filed on 12/04/2009 by the Applicant.
Each rotational sector 6-7 of the control valve 5 located upstream in the direction of flow of the fluid product is rotational about the axis 8 thereof under the basis of a respective automatically closing device, indicated by reference numeral 9 as a whole. Each device 9 comprises within a containment body 10-11, a fixed body 12 and a mobile body 13 axially sliding with respect to the fixed body 12 (figures 4 and 5). A first chamber 14 is defined inside the fixed body 12 which extends within a first part of the mobile body 13 to the transversal wall 15, which abuts against a control heel
16 of a respective rotational sector 6-7 of the control valve. A helical spring
17 is housed within the first chamber 14, which can extend from the compressed configuration in figure 4 to the elongated condition in figure 5. The elongation of the spring 17 occurs automatically when the sleeve 4, according to the methods explained in Italian patent application MI2009A002146, is removed axially from inside the valve 5 ceasing the withholding action thereof on the rotational sectors 6 and 7 of the valve itself.
A second chamber 18 is defined on the opposite end of the sliding body 13 in which braking fluid, of approximately chosen viscosity, is normally accommodated. The two chambers 14 and 18 communicate by means of a passage duct 19, which has an widened inlet part 20 in which a flow speed regulation cartridge 21 is inserted, which has a cylindrical part 22 on an inlet side 23 provided with a helical external groove 24, Examples of cartridges 21 with different extensions of the external grooves 24 are shown in figure 8-10.
The described communication between the chambers 14 and 18 has the effect of causing the leakage of braking fluid from chamber 18 to chamber 14 during the movement of the sliding body 13 from the position in figure 4 to that in figure 5, caused by the thrust of the spring 17 in absence of the sleeve 4 and, during the closing rotation of the valve sectors 6-7, by the pressurized fluid which flows through the union part 1. The passage of braking fluid slows down the closing speed of the valve avoiding abrupt impacts which could damage the rotational sectors of the valve itself. Sudden increases of pressure, known as water hammers, are thus avoided.
The passage speed, and thus the closing speed of the single rotation petals, depends on the section of the passage duct 19, the diameter of the cylinder part 22 of the cartridges 21 and the extension of the helical external grooves 24 of the cartridges 21 and may be modified by replacing the cartridges with others of different diameter and with different grooves. It is thus possible to envisage the use of cartridges of one type for rotational sectors 6 and cartridges of another type for rotational sectors 7, so as to determine different rotation speeds and thus closing speeds of the single sectors of the valve 5, This has the purpose of having a closure which limits the exit of product to the maximum during the closing of the rotation sectors or petals of the control valve, thus limiting the pressure peak generated by the water hammer to acceptable levels.
The rotational sectors 6'-7* of the control valve 5' downstream of the direction of flow of the fluids are, in turn, provided with automatic closing devices 9' which similarly have fixed bodies 12', sliding bodies 13' and normally compressed springs 17' which through the heels 16' determine the rotation, and thus the automatic closure, of the various rotational sectors 6-7 of the valve 5' in case of removal of the sleeve 4. A braking effect similar to that determined by the passage of braking fluid from chamber 18 to chamber 14 is missing instead. The braking effect is indeed determined by the pressurized fluid present in the union part 2.

Claims

1. Device for automatic closure of control valves in separable connection units for flexible pipes, characterized in that it comprises, for every sector (6-7) of the control valve (5) upstream of the direction of the fluid flow, a slidabie body (13) operating on said valve sector (6-7) to cause closing and opening rotation thereof, elastic means (17) housed in a first chamber (14) to activate said sliding body (13) in a direction suitable to cause the closing rotation of said valve sector (6-7), a braking fluid housed in a second chamber (18) to brake the movement of said sliding body (13) in the closing direction of said valve sector (6-7) and fluid-dynamic communication means (19, 20, 21) between said chambers (14, 18) to consent the controlled transfer of said braking fluid from the second chamber (18) to the first chamber (14) during the movement of said sliding body (14) in the direction of closure of said valve sector (6-7), said fluid dynamic communication means (19, 20, 21) comprising a small passage duct
(19) with an enlarged part (20) and a cartridge inserted in said enlarged part
(20) , said cartridge having a cylindrical part (22) and a grooved part (23) provided with external grooves (24).
2. Device according to claim 1, characterized in that said grooved part (23) is of variable length.
PCT/EP2011/068633 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes. WO2012076240A1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
RS20150638A RS54295B1 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes.
KR1020137016266A KR101938786B1 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes
RU2013131030/06A RU2575539C2 (en) 2010-12-06 2011-10-25 Device for automatic closing of control valves in disconnected connecting assemblies for flexible pipes
CN201180059644.2A CN103270361B (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes
BR112013014040A BR112013014040B8 (en) 2010-12-06 2011-10-25 device for automatic closing of control valves in separable connection units for flexible pipes
MEP-2015-167A ME02197B (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes
US13/992,047 US8991782B2 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes
DK11782574.5T DK2649359T3 (en) 2010-12-06 2011-10-25 Device for automatic closing of the control valves in the separable forbindelsesaggregater for hoses
SI201130623T SI2649359T1 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes.
PL11782574T PL2649359T3 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes.
EP11782574.5A EP2649359B1 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes.
ES11782574.5T ES2548687T3 (en) 2010-12-06 2011-10-25 Device for automatic closing of control valves in separable connection units for flexible pipes
JP2013541267A JP5810169B2 (en) 2010-12-06 2011-10-25 Device for automatic closing of control valves in separable connection units for flexible pipes
HRP20151070TT HRP20151070T1 (en) 2010-12-06 2015-10-07 Device for automatic closure of control valves in separable connection units for flexible pipes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2010A002247A IT1402917B1 (en) 2010-12-06 2010-12-06 DEVICE FOR THE AUTOMATIC CLOSING OF CONTROL VALVES IN SEPARABLE CONNECTION UNITS FOR FLEXIBLE TUBES.
ITMI2010A002247 2010-12-06

Publications (1)

Publication Number Publication Date
WO2012076240A1 true WO2012076240A1 (en) 2012-06-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/068633 WO2012076240A1 (en) 2010-12-06 2011-10-25 Device for automatic closure of control valves in separable connection units for flexible pipes.

Country Status (19)

Country Link
US (1) US8991782B2 (en)
EP (1) EP2649359B1 (en)
JP (1) JP5810169B2 (en)
KR (1) KR101938786B1 (en)
CN (1) CN103270361B (en)
BR (1) BR112013014040B8 (en)
CY (1) CY1116825T1 (en)
DK (1) DK2649359T3 (en)
ES (1) ES2548687T3 (en)
HR (1) HRP20151070T1 (en)
HU (1) HUE025474T2 (en)
IT (1) IT1402917B1 (en)
ME (1) ME02197B (en)
MY (1) MY165228A (en)
PL (1) PL2649359T3 (en)
PT (1) PT2649359E (en)
RS (1) RS54295B1 (en)
SI (1) SI2649359T1 (en)
WO (1) WO2012076240A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120694A1 (en) * 2012-04-26 2013-10-27 Mib Italiana Spa PETAL CONTROL VALVE WITH SEAL GASKET FOR SEPARABLE CONNECTION UNITS FOR FLEXIBLE TUBES.
ITMI20120695A1 (en) * 2012-04-26 2013-10-27 Mib Italiana Spa PETAL CONTROL VALVE FOR SEPARABLE CONNECTION UNITS FOR FLEXIBLE PIPES.
ITMI20120693A1 (en) * 2012-04-26 2013-10-27 Mib Italiana Spa CONTROL VALVE WITH PAIRS OF PETALS OF DIFFERENT SHAPE AND DIMENSIONS AND WITH DIFFERENT CLOSING SPEEDS FOR SEPARABLE CONNECTION UNITS FOR FLEXIBLE TUBES.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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ITMI20120694A1 (en) * 2012-04-26 2013-10-27 Mib Italiana Spa PETAL CONTROL VALVE WITH SEAL GASKET FOR SEPARABLE CONNECTION UNITS FOR FLEXIBLE TUBES.
ITMI20120695A1 (en) * 2012-04-26 2013-10-27 Mib Italiana Spa PETAL CONTROL VALVE FOR SEPARABLE CONNECTION UNITS FOR FLEXIBLE PIPES.
ITMI20120693A1 (en) * 2012-04-26 2013-10-27 Mib Italiana Spa CONTROL VALVE WITH PAIRS OF PETALS OF DIFFERENT SHAPE AND DIMENSIONS AND WITH DIFFERENT CLOSING SPEEDS FOR SEPARABLE CONNECTION UNITS FOR FLEXIBLE TUBES.
WO2013160843A1 (en) * 2012-04-26 2013-10-31 Mib Italiana S.P.A. Petal control valve with sealing gasket for separable connection units for flexible hoses
WO2013160838A1 (en) * 2012-04-26 2013-10-31 Mib Italiana S.P.A. Control valve with pairs of petals with different shape and sizes and with different closing speed for separable connection units for flexible hoses
WO2013160846A1 (en) * 2012-04-26 2013-10-31 Mib Italiana S.P.A. Petal control valve for separable connection units for flexible hoses
US9341269B2 (en) 2012-04-26 2016-05-17 Mib Italiana S.P.A. Control valve with pairs of petals with different shape and sizes and with different closing speed for separable connection units for flexible hoses
US9353869B2 (en) 2012-04-26 2016-05-31 Mib Italiana S.P.A. Petal control valve with sealing gasket for separable connection units for flexible hoses
US9518661B2 (en) 2012-04-26 2016-12-13 Mib Italiana S.P.A. Petal control valve for separable connection units for flexible hoses
EA025985B1 (en) * 2012-04-26 2017-02-28 МИБ ИТАЛЬЯНА С.п.А. Petal control valve with sealing gasket for separable connection units for flexible hoses
EA025936B1 (en) * 2012-04-26 2017-02-28 МИБ ИТАЛЬЯНА С.п.А. Control valve with pairs of petals with different shape and sizes and with different closing speed for separable connection units for flexible hoses
EA027750B1 (en) * 2012-04-26 2017-08-31 МИБ ИТАЛЬЯНА С.п.А. Petal control valve for separable connection units for flexible hoses

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US8991782B2 (en) 2015-03-31
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EP2649359B1 (en) 2015-07-08
CY1116825T1 (en) 2017-03-15
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JP2014505210A (en) 2014-02-27
ITMI20102247A1 (en) 2012-06-07

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