• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Anchor system for butterfly valve divided into an active unit (1) and a passive unit (2), where each unit (1, 2) comprises: - a casing (3), - a valve seat (4), - a closing disc (5) movable between a first position in which the closing disc (5) moves with respect to the valve seat (4) and a second position in which the closing disc (5) is positioned in the valve seat (4) and the valve closes, - a shaft (6) connected by a first end to the closing disc (5) for the pivotal movement of said closing disc (5) between the first and second positions, - a sealing gasket (7) comprising a lip-shaped flange (8) on the outer perimeter, and - a system for blocking the rotation of the shaft (6) of the passive unit (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2775123A1
    申请号:ES201930049
    申请日:2019-01-23
    公开日:2020-07-23
    发明作者:Encina Javier Lopez-Belmonte；Melon Raúl Garcia；Cecilia Francisco Esteban
    申请人:Rovi Pharma Industrial Services SA；
    IPC主号:
    专利说明:

    [0002] Anchoring system for butterfly valve and butterfly valve that includes said anchoring system
    [0004] Field of the invention
    [0006] The object of the invention is related to an anchoring system for butterfly valves of the type that are divided into an active unit and a passive unit and where the product passes through them. Another object of the present invention is a butterfly valve comprising said anchoring system.
    [0008] State of the art
    [0010] Product transfer processes are known in the pharmaceutical industry. The critical characteristics in these industrial processes are speed, efficiency, cleanliness and economic maintenance for the following reasons:
    [0012] - Speed: a fast transfer process reduces the final cost of the production process.
    [0013] - Efficiency: an effective system is one that allows the management and control of the system in a simple and operational way.
    [0014] - Cleaning: a clean transfer of the product, without dust, reduces not only the subsequent cleaning time, but also the risk of contamination either from the environment or from the product itself and staff.
    [0015] - Maintenance: one of the most important costs of any manufacturing process is the cost that requires the subsequent maintenance of all the facilities and equipment integrated into it. That is why, when choosing a product transfer process, its subsequent maintenance (quantity and accessibility of spare parts, preventive and corrective procedures) must be taken into account especially.
    [0017] Hermetic transfer systems are also known, which are generally divided into three types:
    [0019] - Transfer of product by vacuum.
    [0020] - Transfer of product by gravity.
    [0021] - Other transfer systems: hermetic dosing systems using a “dust-free” screw and integrated weighing into barrels.
    [0023] Gravity product transfer is a widely used, multi-run transfer process. Within gravity transfer, vertical design product transfer facilities are also known, which are called automated loading and unloading stations.
    [0025] The loading and unloading stations allow the transfer of product from one floor to another, generally from the technical area to the production area, quickly and efficiently, avoiding or minimizing the flow of containers through the production area.
    [0027] The principle of this transfer system is based on the tightness of the closure between the container discharge valve and the station loading valve. For this, numerous anti-pollution valves have been designed in the state of the art, among which the butterfly valves divided into two units stand out.
    [0029] In this system, the container valve is called the passive valve and the station valve is the so-called active valve, which is the one that incorporates all the necessary automatisms to govern the coupling and closing process.
    [0031] Each of the units comprises a housing, a valve seat, a valve closure disc movable between a first position in which the closure disc moves relative to the valve seat and the valve opens and a second position in the which the closing disc is positioned on the valve seat and the valve is closed. They also comprise an axis around which the closure disk is pivotally mounted for pivotal movement around the longitudinal axis of the axis between the first and second positions.
    [0033] The sealing gaskets of high containment valves type Glatt® that are used in product transfer processes are also known. Inflatable seals are currently used for said valves, which have the disadvantage that they deteriorate easily so that, with relative frequency, remains of the seals fall to the product being manufactured.
    [0034] Based on the known history, the download process currently follows the following basic sequence:
    [0036] - Anchoring of the active valve with the passive valve of the container.
    [0037] - Pressurization of the inflatable gasket of the active valve, sealing the whole.
    [0038] - Active valve rotation by opening the active valve passive valve assembly.
    [0040] This system has the advantage that both valves are never in direct contact with the product, so the subsequent container transport process is a clean process, minimizing the risk of cross contamination that other systems do not avoid.
    [0042] However, as discussed above, the joints used in the state of the art are generally inflatable joints and this type of joint has several drawbacks:
    [0044] - They deteriorate easily, relatively frequently, the remains of the gaskets falling onto the pharmaceutical product, causing their contamination.
    [0045] - They have a very short half-life and when they deteriorate they cause irreversible damage since the operator who detects remains of valve material in the product is forced to remove the entire batch, with the economic repercussions it has for the pharmaceutical industry.
    [0046] - When the joint breaks, the anchoring system fails, causing a practically total loss of load in the open position.
    [0048] The deterioration of the gaskets is produced by pinching or tearing and they are liable to suffer a total breakage due to internal pressure. When the breakage occurs, the entire joint loses sealing capacity, causing the following problems:
    [0050] - upon loss of pressure, the gasket deflates completely, therefore, the functionality of the gasket ceases to exist in the face of product containment, causing a massive leakage of the product out of the container,
    [0051] - deterioration and fall of remains of the gasket material to the pharmaceutical product causing contamination of the same and irreversible damage, since, according to what has been commented, the operator who detects remains of valve material in the product is forced to remove the complete batch, with the consequent economic impact.
    [0052] To solve this problem, several solutions are known:
    [0054] - replacement of equipment with new ones. This option has a high cost, or
    [0055] - replacement of silicone gaskets with also inflatable gaskets made of another type of material, for example EPDM (ethylene propylene diene rubber or polymer). However, this solution does not eliminate the pinching of the gasket and its complete breakage due to inflation pressure.
    [0057] Additionally, butterfly valve shaft rotation locking systems that have a mechanical brake are also known.
    [0059] The rotation locking system known in the state of the art comprises:
    [0061] - A lever and pinion system with a housing for one end of the lever so that it blocks the rotation of the spindle.
    [0062] - A compression spring located at the other end of the lever that pushes it towards the pinion in a pivoting movement and is housed in a hole in a housing that surrounds the spindle.
    [0064] As mentioned above, the anchoring systems known in the state of the art use adaptable inflatable joints with the idea of mitigating this risk, since the joint itself causes friction with the walls of the housing of the disk when inflating. valve avoiding accidental opening or closing movement of the same, so that the locking system does not have a relevant function when used together with this type of inflatable joints.
    [0066] Summary of the invention
    [0068] The present invention makes it possible to improve the reliability, safety and cost of gravity transfer solids systems whose containers and / or dispensers use a butterfly valve.
    [0070] The anchoring system object of the invention comprises:
    [0071] - a sealing gasket comprising an inner perimeter, an outer perimeter and a thickness, configured so that the inner perimeter is located adjacent to the closing disc, surrounding the same perimeter and destined to be located in the closed position of the valve between the disc valve seat and valve seat, the sealing gasket comprising a lip-shaped flange on the outer perimeter, and - a system for blocking the rotation of the shaft of the passive unit comprising:
    [0072] - an extension of the housing surrounding the shaft,
    [0073] - a locking element configured to be attached to the shaft, the locking element comprising a housing,
    [0074] - a locking lever that has a first end intended to be inserted into the housing of the locking element to lock the rotation of the shaft and a second end joined to the extension in a pivotal manner for inserting and releasing the locking lever in the housing, - a torsion spring located at the junction between the locking lever and the housing extension, one end of the torsion spring resting on a projection of the extension and the other end being connected to the lever for pushing it to a locked position.
    [0076] The invention is directed to an anchoring system for butterfly valves and, according to the foregoing, comprises a joint that replaces the inflatable joints known in the state of the art, together with a locking system to ensure the anchoring of the active valves. and passive and thus avoid the loss of product in the event of a possible failure of the anchoring system.
    [0078] The system developed for the present invention is suitable for processes and elements that require product transfer such as, for example, in containers of pharmaceutical products selected from the group consisting of devices for dry granulation lines, fluid beds, tablet coaters or gravitational mixers between others. The system of the present invention significantly improves the control of the transfer and the dosage of pharmaceutical products through the active-passive system, which avoids contamination.
    [0080] Preferably, the valves studied in the present invention are butterfly-type valves compatible with systems manufactured by the Glatt® company, where the butterfly valve is understood as the device or means necessary to interrupt or regulate the flow of a solid product, increasing or reducing the passage section by means of a disc, called "butterfly", which rotates on an axis and is equipped with a locking system for it.
    [0082] The anchoring system object of the invention has the advantage that it is compatible with the equipment commonly used in the sector, so it is not necessary to replace it with new equipment to implement the improvements of the invention.
    [0084] According to the above, the developed solution modifies the transfer system, that is, both the container valve seal, the passive valve, and the station valve seal, the active valve, which governs the coupling and closing process and also the locking system (closure and containment) of the valve.
    [0086] In this way, a double objective is achieved:
    [0088] i) the change of the valve sealing gasket prevents deterioration and breakage of the gasket itself, and
    [0090] ii) the change of the locking or brake system ensures the adequate degree of tightness due to accidental openings since it ensures a minimum pressure drop when the valves are fully open.
    [0092] It must be taken into account that the gasket object of the invention being more rigid than inflatable gaskets makes it difficult to completely close the valve disc, so there is a risk that the disc will not close completely and that, therefore , the twist lock system will not work. The optimal closure of the butterfly is solved in the present invention by means of an anchoring system that is the combination of the gasket and the twist-lock system described, thus achieving the optimal closure and, therefore, preventing the system from leaking.
    [0094] According to the above, the solution proposed for the valve seal changes the inflatable system for a static element, although flexible, which is more durable and has slightly modified dimensions with respect to the inflatable seal, which ensures a suitable coupling to the body of the valve. the valve thus preventing the leakage of pharmaceutical product.
    [0095] The sealing gasket of the anchoring system object of the invention improves the containment system in terms of mitigating the risk of spillage due to total breakage of the gasket and in terms of cross contamination, achieving a reduction in costs and an improvement in life mean and reliability of the containment system.
    [0097] Likewise, also according to the above, the proposed solution for the mechanical braking system is a combination of elements formed by a spring and a lever and pinion system with at least one notch looking for a narrow housing to obtain a more precise and deep closure. to ensure correct locking.
    [0099] The locking system object of the invention has the following advantages:
    [0101] - Increases the force exerted on the lever that blocks the rotation of the valve. - It is a fixed system and anchored to the valve which avoids losses and spring jumps.
    [0103] Description of the figures
    [0105] To complete the description and in order to provide a better understanding of the invention, figures are provided. Said figures form an integral part of the description and illustrate various embodiments of the invention.
    [0107] Figure 1 shows a schematic side view of a butterfly valve according to the state of the art divided into an active unit and a passive unit.
    [0109] Figure 2 shows a schematic side view of a butterfly valve according to the state of the art divided into an active unit and a passive unit and in which the shaft rotation locking system of the passive unit is represented.
    [0111] Figure 3 shows a section of an embodiment of a sealing gasket.
    [0113] Figures 4 and 5 show a perspective view of an embodiment of the locking system.
    [0115] Detailed description of the invention
    [0116] Figures 1 and 2 represent the state of the art and disclose a butterfly valve divided into an active unit (1) and a passive unit (2) that have a complementary shape for their coupling and cooperation to allow the movement of a material to across both units (1, 2). Each unit (1, 2) comprises a casing (3), a valve seat (4), a closing disk (5) movable between a first position in which the closing disk (5) moves relative to the valve seat. valve (4) and the valve opens and a second position in which the closing disc (5) is positioned on the valve seat (4) and the valve is closed and a shaft (6) around which is mounted in the closing disc (5) pivotally forms to move it between the first and second positions. Figure 1 represents an inflatable sealing gasket (7) located in the closing disk (5) surrounding the same perimeter (5).
    [0118] In an exemplary embodiment, the material of the sealing gasket (7) is EPDM, that is, an elastomeric polymer that has good resistance to abrasion and wear. The composition of this material contains between 45% and 75% ethylene, being in general more resistant the higher this percentage. The sealing gasket (7) therefore has a high resistance to atmospheric agents, acids and alkalis, and to chemical products in general, being susceptible to attack by oils and petroleum.
    [0120] The EPDM used in the present invention has the technical characteristic of being combined with the additives selected from the group formed by any of: oils, paraffinic, naphthenic and aromatic hydrocarbons, esters, resins, and with the mineral residue selected from the group formed by talc. , chalk, calcium carbonate, kaolins and silica.
    [0122] Preferably, the composition of the sealing gasket (7) of the present invention consists of EPDM combined with additives in a proportion by weight of 46% ± 10% and a mineral residue of 54% ± 10% by weight, taking into account Note that the total percentage of the composition is 100% by weight.
    [0124] Several preferred embodiments of the invention are described below. These preferred embodiments are to be understood only as a representative basis that provides an understandable description, as well as sufficient information to the person skilled in the art to apply the present invention.
    [0126] Realization example 1
    [0127] Figure 3 represents an example of embodiment of the sealing gasket (7) part of the anchoring system object of the invention. The sealing gasket (7) comprises an inner perimeter (7.1), an outer perimeter (7.2) and a thickness (7.3), the inner perimeter being located adjacent to the closing disc (5) surrounding the same perimeter (5). Furthermore, the sealing gasket (7) comprises a lip-shaped bead (8) on the outer perimeter (7.2). More specifically the sealing element (7) comprises a thickness (7.3) equal to the thickness of the disc (5).
    [0129] Optionally, the sealing gasket (7) comprises recessed upper and lower edges (16) of the outer perimeter (7.2). This configuration has the advantage that the sealing gasket (7) improves its behavior against clogging of the same when closing and opening the closing disc (5), minimizing the possibility that the sealing gasket (7) may come out of your accommodation.
    [0131] In order to avoid or minimize pinching of the sealing gasket (7), the lip-shaped flange (8) has a width range with respect to the thickness (7.3) of the sealing element (7) of between 10% and 20% in the realization example. More specifically, the best results are achieved with a width-to-thickness (7.3) range of the sealing element (7) of 14%.
    [0133] Likewise, to improve the performance of the sealing gasket (7) with respect to pinching problems, the lip-shaped rim (8) has a width-to-height ratio of between 2.5 and 3.5 times, preferably 2.9 times.
    [0135] Preferably, the composition of the gasket (7) of the present invention is formed by EPDM combined with additives in a proportion by weight of 46% ± 10% and a mineral residue of 54% ± 10% by weight, taking into account that the total percentage of the composition is 100% by weight.
    [0137] In the embodiment shown, the perimeter lip (8) is arranged in the central part of the thickness (7.3) of the sealing gasket (7). Thus, the movement that must be made in both directions depending on whether it performs the closing or opening maneuver is the same, achieving the same behavior in both maneuvers.
    [0138] Figure 2 shows a system for locking the shaft (6) of the passive unit (2) known in the state of the art. Said locking system comprises:
    [0140] - an extension (9) of the casing (3) that surrounds the shaft (6),
    [0141] - a locking element (10) configured to be attached to the shaft (6) and comprising a housing (11),
    [0142] - a locking lever (12) that has a first end intended to be inserted into the housing (11) of the locking element (10) to lock the rotation of the shaft (6) and a second end attached to the extension (9 ) of the casing (3) pivotally.
    [0144] Example of realization 2
    [0146] Figures 4 and 5 show another embodiment in which a torsion spring (13) can be seen, one end of which rests on a projection (14) of the casing (9) and the other end being attached to the lever ( 12) to be pushed into a locked position.
    [0148] In the exemplary embodiment shown, the lever (12) comprises a U-shaped element (15) for its connection with the extension (9) of the casing (3) at two points diametrically opposed to the extension (9) so comprising two torsion springs (13) at each of the junction points with the extension (9).
    [0150] The torsion spring (13) provides greater actuation force. Assembling a spring in the same location in the state of the art with a higher elastic modulus would make assembly difficult due to its small dimensions and it would be necessary to keep it compressed for the assembly of the entire assembly. Furthermore, it would be dangerous for operators and technicians as it could come loose and impact the operator.
    [0152] The torsion springs (13) installed on both sides of the extension (9) make it possible to distribute the actuation force of the system in two springs instead of in a single spring with a greater elastic modulus. In addition, by means of a single spring the assembly is more complicated and insecure and thus possible physical damage to the operator is minimized. With springs on both sides, the actuation force is distributed avoiding asymmetric forces in the mechanism that could reduce its effectiveness.
    [0153] To provide the system with greater security against accidental openings, it is proposed to make the brake housing (11) deeper and narrower, thus ensuring at least partial closure and avoiding spills due to accidental opening. Furthermore, the locking element (10) comprises a plurality of housings (11) so that if the locking lever (12) were to come out of one of the housings (11) it would be retained by one of the additional housings (11) providing to the highest security system.
    [0155] Realization example 3
    [0157] In another preferred embodiment, a laboratory analysis has been carried out by which the physical characteristics of the sealing gasket (7) have been measured: hardness, resistance, tear, residual compression deformation and aging.
    [0159] Hardness Test
    [0161] In particular, the hardness of this sealing gasket (7) has been quantified by determining the indentation hardness by means of a durometer (Shore hardness) according to the Shore-A S / N UNE-EN-ISO 868 technique. The conditions under which the analysis has been carried out have been the following:
    [0163] - Temperature: 23 ± 4 ° C.
    [0164] - Reading time: 3 seconds.
    [0166] A specific Bareiss® brand durometer with serial number 108253 was used to measure hardness in rubbers and rubbers on Shore and IRHD scales.
    [0168] Various measurements were obtained. The result of the mean value of the measurements for the sealing gasket (7) object of the invention was 69 ± 10 Shore-A units.
    [0170] Tensile strength test
    [0172] Another of the evaluated physical properties of the sealing gasket (7) has been the tensile strength, which in turn comprises the quantification of the elongation at break and the breaking load.
    [0173] To carry out this assessment, a tensile strength test S / N UNE ISO 37 was carried out at 23 ± 4 ° C temperature in an INSTRON® machine, model 3365, serial number J5265 at a separation speed of jaws of 500 mm / min.
    [0175] The results obtained were the following:
    [0177] - Elongation at break: 469% ± 10
    [0178] - Breaking load: 62.4 Kg / cm2 ± 10
    [0180] Tear Test
    [0182] Regarding the tear test, the test was carried out in accordance with the provisions of the S / N UNE-ISO 34-1 standard with trouser test piece on an INSTRON® machine, model 3365, serial number J5265 at a jaw separation speed of 100 mm / min and a temperature of 23 ± 4 ° C. Regarding the tear, the value obtained after the analysis of the sealing gasket (7) was 56 ± 10 KN / m.
    [0184] Remanent compression deformation test
    [0186] To quantify the degree of remaining compression deformation, an analysis was carried out in accordance with the UNE-ISO 815 Standard, suitable for rubbers, vulcanizates or thermoplastic materials at room temperature or higher temperatures.
    [0188] The remaining compression deformation must be determined according to ISO 815 with a small specimen under the following conditions: at 70 ° C for 72 h, obtaining a value of 34 ± 10%
    [0190] Heat aging test
    [0192] Finally, the determination of aging by hot air current has been studied, evaluating the hardness, resistance and elongation at break in extreme heat conditions. For this, such studies have been carried out in an oven according to ISO 188 in air at 100 ± 10 ° C for 72 ± 10 h.
    [0194] The values obtained were the following:
    [0195] - Elongation at break: - 29.0% ± 10.
    [0196] - Resistance to breakage: - 10.9% ± 10.
    [0197] - Shore-A hardness: 3 Shore-A units
    [0199] Realization example 4
    [0201] Finally, a test was carried out to quantify the chemical properties and the composition of the sealing gasket (7).
    [0203] From a chemical point of view, the material of the sealing gasket (7) is EPDM with the corresponding additives.
    [0205] The EPDM used in the present invention has the technical characteristic of being combined with the additives selected from the group formed by any of: oils, paraffinic, naphthenic and aromatic hydrocarbons, esters, resins, and with the mineral residue selected from the group formed by talc. , chalk, calcium carbonate, kaolins and silica.
    [0207] Preferably, the composition of the sealing gasket (7) of the present invention consists of EPDM combined with additives in a proportion by weight of 46% ± 10% and a mineral residue of 54% ± 10% by weight, taking into account Note that the total percentage of the composition is 100% by weight.
    [0209] The determination of the components of the sample of the present performance test was carried out by thermogravimetric analysis on a thermobalance, in TG 7 equipment from Perkin Elmer.
    [0211] The operating conditions have been:
    [0213] - Initial temperature: 30 ° C
    [0214] - Increase in temperature from 30 ° C to 550 ° at 30 ° C / min.
    [0215] - Isotherm at 550 ° C for 10 minutes.
    [0216] - Increase in temperature up to 650 ° C at 30 ° C / min.
    [0217] Isotherm at 650 ° C for 10 minutes.
    [0218] - Change from N2 to O2
    [0219] - Increase in temperature up to 850 ° C at 30 ° C / min.
    [0220] - Isotherm at 850 ° C for 20 minutes.
    [0221] Ċ
    权利要求:
    Claims (14)
    [1]
    1.- Anchoring system for butterfly valve divided into an active unit (1) and a passive unit (2) that have a complementary shape for their coupling and cooperation to allow the movement of a material through both units (1, 2), where each unit (1,2) comprises:
    • a housing (3),
    • a valve seat (4) located in said casing (3),
    • a valve closure disc (5), movable between a first position in which the closure disc (5) is configured to move relative to the valve seat (4) and the valve opens and a second position in which the closing disc (5) is configured to be positioned on the valve seat (4) and the valve is closed, and
    • a shaft (6) comprising a longitudinal first end and a second end, joined through the first end to the closing disk (5) for pivotal movement around the longitudinal axis of the axis (6) of said closing disk (5) between the first and second position,
    characterized in that the anchoring system comprises:
    - a sealing gasket (7) comprising an inner perimeter (7.1), an outer perimeter (7.2) and a thickness (7.3), configured so that the inner perimeter is located next to the closing disc (5) surrounding the same perimeter (5) and intended to be located in the closed position of the valve between the closing disc (5) and the valve seat (4), the sealing gasket (7) comprising a lip (8) in the shape of a lip in the outer perimeter (7.2), and
    - a system for blocking the rotation of the shaft (6) of the passive unit (2) comprising:
    - an extension (9) of the casing (3) that surrounds the shaft (6),
    - a locking element (10) configured to be attached to the shaft (6), the locking element (10) comprising a housing (11),
    - a locking lever (12) that has a first end intended to be inserted into the housing (11) of the locking element (10) to lock the rotation of the shaft (6) and a second end attached to the extension (9 ) pivotally for insertion and release of the locking lever (12) in the housing (11),
    - A torsion spring (13) located at the junction between the locking lever (12) and the extension (9) of the casing (3), one of the ends of the torsion spring (13) resting on a projection (14 ) of the extension (9) and another end being attached to the lever (12) to push it towards a locking position.
    [2]
    2. - Anchoring system for butterfly valve, according to claim 1, characterized in that the sealing gasket (7) comprises a thickness (7.3) equal to the thickness of the closing disc (5).
    [3]
    3. - Anchoring system for butterfly valve, according to claim 2, characterized in that the sealing gasket (7) comprises recessed upper and lower edges (16) of the outer perimeter (7.2).
    [4]
    4. - Anchoring system for a butterfly valve, according to any one of the preceding claims, characterized in that the lip (8) has a width range with respect to the thickness (7.3) of the sealing gasket (7) between 10% and 20%.
    [5]
    5. - Anchoring system for butterfly valve, according to claim 4, characterized in that the lip (8) has a width range with respect to the thickness (7.3) of the sealing gasket (7) of 14% .
    [6]
    6. - Anchoring system for a butterfly valve, according to any one of the preceding claims, characterized in that the lip (8) has a ratio of width to height of between 2.5 and 3.5 times.
    [7]
    7. - Anchoring system for butterfly valve, according to claim 6, characterized in that the lip (8) has a ratio of width to height of 2.9 times.
    [8]
    8. - Anchoring system for butterfly valve, according to any one of the preceding claims, characterized in that the lip (8) shaped like a lip is arranged in the central part of the thickness (7.3) of the sealing gasket (7) .
    [9]
    9. - Anchoring system for butterfly valve, according to any one of the preceding claims, characterized in that the material of the sealing gasket (7) is EPDM and comprises between 45% and 75% ethylene.
    [10]
    10. Anchoring system for a butterfly valve, according to claim 9, characterized in that the material of the sealing gasket (7) comprises EPDM combined with additives selected from the group formed by any of: oils, paraffinic, naphthenic and hydrocarbons. aromatics, esters, resins, and with the mineral residue selected from the group consisting of talc, chalk, calcium carbonate, kaolins and silica.
    [11]
    11. - Anchoring system for butterfly valve, according to claim 10, characterized in that the composition of the sealing gasket (7) comprises EPDM combined with additives in a weight proportion of 46% ± 10% and a mineral residue 54% ± 10% by weight.
    [12]
    12. - Anchoring system for butterfly valve, according to any one of the preceding claims, characterized in that the locking lever (12) comprises a U-shaped element (15) for joining with the extension (9) of the casing (3) in two points diametrically opposite with respect to the extension (9) and because it comprises two torsion springs (13) at each of the points of connection with the extension (9) of the casing (3).
    [13]
    13. - Anchoring system for butterfly valve according to any one of the preceding claims, characterized in that the locking element (10) comprises a plurality of housings (11).
    [14]
    14.- Butterfly valve divided into an active unit (1) and a passive unit (2) that have a complementary shape for their coupling and cooperation to allow the movement of a material through both units (1, 2), where each unit (1, 2) comprises:
    • a housing (3),
    • a valve seat (4) located in said casing (3),
    • a valve closure disc (5), movable between a first position in which the closure disc (5) is configured to move relative to the valve seat (4) and the valve opens and a second position in which the closing disc (5) is configured to be positioned on the valve seat (4) and the valve is closed, and
    • a shaft (6) comprising a longitudinal first end and a second end, joined through the first end to the closing disk (5) for pivotal movement around the longitudinal axis of the axis (6) of said closing disk (5) between the first and second position,
    characterized in that it comprises an anchoring system according to any one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    ES2775123B2|2021-02-25|
    WO2020152385A1|2020-07-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2970803A|1957-07-22|1961-02-07|Harza Patents|Valve seal|
    US3799501A|1971-12-27|1974-03-26|T Hartman|Elastomers in shear force transfer systems|
    US4193320A|1978-05-08|1980-03-18|Kubota Ltd.|Collapsible lever device for operating valve|
    US6494466B1|2000-04-20|2002-12-17|Thomas A. Hartman|Valve seal construction with non-congruent side serrations|
    US20090261280A1|2006-03-20|2009-10-22|Hiroyuki Matsushita|Rotary Valve|
    DE102009012634A1|2009-03-04|2010-12-02|Glatt Systemtechnik Gmbh|Coupling system for coupling two parallel flanges at pipeline, has coupling sleeve for holding two flanges coaxially to longitudinal axis, where locking pin of flange intervenes into respective guide slot during coupling|
    US20150147955A1|2012-05-21|2015-05-28|Capital Hardware Supply Inc.|Adjustable regulator and lock device for ductwork damper|
    WO2015107120A2|2014-01-17|2015-07-23|Giltinan Adrian|A dry disconnect coupling valve|
    法律状态:
    2020-01-30| PC2A| Transfer of patent|Owner name: ROVI PHARMA INDUSTRIAL SERVICES S.A.U. Effective date: 20200130 |
    2020-02-03| PC2A| Transfer of patent|Owner name: FROSST IBERICA, S.A.U. Effective date: 20200128 |
    2020-07-23| BA2A| Patent application published|Ref document number: 2775123 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200723 |
    2021-02-25| FG2A| Definitive protection|Ref document number: 2775123 Country of ref document: ES Kind code of ref document: B2 Effective date: 20210225 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201930049A|ES2775123B2|2019-01-23|2019-01-23|Anchoring system for butterfly valve and butterfly valve comprising said anchoring system|ES201930049A| ES2775123B2|2019-01-23|2019-01-23|Anchoring system for butterfly valve and butterfly valve comprising said anchoring system|
    PCT/ES2020/070045| WO2020152385A1|2019-01-23|2020-01-21|Securing system for butterfly valves and butterfly valve comprising the securing system|
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