WO2020171739A1 - Flange - Google Patents

Flange Download PDF

Info

Publication number
WO2020171739A1
WO2020171739A1 PCT/RU2020/000077 RU2020000077W WO2020171739A1 WO 2020171739 A1 WO2020171739 A1 WO 2020171739A1 RU 2020000077 W RU2020000077 W RU 2020000077W WO 2020171739 A1 WO2020171739 A1 WO 2020171739A1
Authority
WO
WIPO (PCT)
Prior art keywords
flange
central section
stiffeners
fasteners
arcuate
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.)
Ceased
Application number
PCT/RU2020/000077
Other languages
French (fr)
Inventor
Andrey Yurievich YAZYKOV
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EA202100193A priority Critical patent/EA202100193A1/en
Priority to EP20759574.5A priority patent/EP3928018A4/en
Publication of WO2020171739A1 publication Critical patent/WO2020171739A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0286—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the shoulder not being formed from the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/41—Liquid ports
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/14—Flanged joints

Definitions

  • the invention relates to connecting elements of hydraulic equipment and can be used as part of hydraulic accumulators, tanks of various applications and other products, mainly having an elastic membrane or partition.
  • a pipe joint flange is known, which is a sheet metal work made by coldforming method, consisting of a round base with a flanged edge with mounting holes, and a central cup-shaped protrusion in the form of a hollow cylinder with a round through hole, characterized in that when the sheet metal thickness from which the product is made is 3 mm, the diameter of the cup-shaped protrusion in the form of a hollow cylinder to the diameter of its passage hole ratio is 2:1, and the height of the cup-shaped protrusion does not exceed half the diameter of the passage hole with scattering of all these dimensions within ⁇ 15% (RU 167377).
  • a flange is known with a central passage hole, and with a conical surface, the generatrix of which is located on the axis of the flange at an acute angle, including a sleeve with a cylindrical surface mounted in the inner hole and rigidly connected to the flange, a protective coating is applied on the side of the inner and outer surfaces of the sleeve with a range of operating temperatures from -60 to 150°C, and the coverage area of the welded joint is limited to the weld joint area (RU 57661).
  • a flange made of sheet metal containing a central hole, a flat surface for placing the seal used to join the mating flange, an external bend in the form of a side surface, which is a stiffener, and mounting holes in the amount of not less than four (RU 2620535).
  • a plastic flange containing a tubular body with a thrust face, a ring with holes for bolt rods and stiffeners oriented from the ring to the thrust face and adjacent to the ring in the spaces between the holes, the body, ring and stiffeners are made in one piece, the minimum rib height on the ring side is equal to the difference in the radii of the hole centers for the bolt rods and the outer surface of the housing (SU 568783, prototype).
  • the technical problem being solved by this technical solution is the creation of an effective and compact flange suitable for mass production by modem technological means, as well as the expansion of flanges range.
  • the technical result which allows to solve this problem, consists in increasing the bearing capacity of the flange due to the fact that the central and peripheral parts of the flange have improved geometric and strength characteristics, providing for the increased reliability and durability of its operation, the allowable number of repair and other assembly and disassembly work has been increased.
  • the dynamic performance of the flange is improved, the design of which is less susceptible to vibrations, since it is substantially bent in the middle, and conditions are created for long-term operation (increased resource) with minimal wear of the flow part, which also allows to increase operational reliability.
  • the plastic flange contains a central section with a flow hole and a connecting fitting, made integral with the annular peripheral section, on which there are holes for fasteners and radial stiffeners are made located around the central section on one side of the flange, on the other side of which the outer mounting ring and the stop collar are concentrically arranged around a central section made convex and averted with convex from the connecting fitting, the pass of which is connected to a flow hole of the central section.
  • the flange is preferably made of glass-filled polypropylene.
  • arcuate stiffeners are made in the peripheral section between the holes for the fasteners.
  • each adjacent hole for fasteners one arcuate and two radial stiffeners are made.
  • the radial and arcuate stiffeners are made of different heights and are interconnected at their intersections.
  • the connecting fitting is made with an external thread or the connecting fitting is made with a hole for an insert adapter with an external thread.
  • the flow hole of the central section is made with separating elements.
  • the central section is made convex spherical in shape.
  • FIG. 1 the flange without an adapter is shown
  • Fig. 2 the flange with the adapter
  • Fig. 3 presents an example of the flange installation as part of a hydraulic accumulator
  • Fig. 4 shows volumetric general view of the flange.
  • the plastic flange contains a central section 1 with a flow hole 2 and a connecting fitting 7, made integral with an annular peripheral section 3, on which there are holes 4 for fasteners and radial stiffeners 5 are made located around the central section 1 on one side of the flange.
  • On the other side of the flange there are concentrically arranged an outer mounting ring 14 on an outer edge of the peripheral section 3 and a stop collar 6 around the central section 1.
  • the central section 1 is made convex, for example, of a spherical shape (a hollow sphere segment) or of a convex conical shape (a truncated hollow cone part) and averted with convex from the connecting fitting 7.
  • a pipe manifold or a main pipeline of water supply arrangements is connected to the fitting 7 in conventional manner.
  • the pass of the fitting 7 is connected to the flow hole 2 of the central section 1.
  • the flange is made of glass-filled polypropylene.
  • arcuate stiffeners 8 are made on the peripheral section 3 between the holes 4 for the fasteners. Between each adjacent holes 4 for fasteners one arcuate stiffener 8 and two radial stiffeners 5 are made. Radial and arcuate stiffeners 5,8 are made of different heights and connected together at the intersections.
  • the connecting fitting 7 in special cases of implementation is made with an external thread (Figure 1) or with a hole for an insert adapter 9 with an external thread ( Figure 2).
  • the flow hole 2 of the central section 1 is made, as a rule, with separating elements 15.
  • the inventive flange can be installed in a household hydraulic accumulator for water supply arrangements (Fig. 3) having a housing 10 on which a counter flange 11 is turned on edges. Inside the housing 10 there is a membrane 12 sealed between the surfaces of the housing 10 and the inventive flange when screwing fasteners (screws) 13.
  • the stop collar 6 eliminates excessive (destructive) force from pressing the peripheral section 3 at the edge of the membrane 12.
  • the manufacture of the inventive flange from glass-filled polypropylene imparts high anticorrosive and strength properties.
  • the performance of the convex surface of section 1, directed inside the housing 10 during installation, radial and arcuate stiffeners 5 and 8 prevent deformation and the occurrence and transmission of vibrations from pipelines to the housing 10 of the hydraulic accumulator, provide high load-bearing capacity and thereby reduce restrictions on the pressure level in the hydraulic accumulator.
  • the separating elements 15 do not allow the membrane 12 to be pulled outward from the hydraulic accumulator housing 10 and can serve as a central stiffener of the flange.
  • the monolithic plastic flange made of glass-filled polypropylene has such advantages as increased bearing capacity, as well as reliability and durability, lower cost of foundry, stainlessness, lower weight.
  • the present invention is implemented with multipurpose equipment extensively employed by the industry.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

The plastic flange contains the central section (1) with the flow hole (2) and the connecting fitting (7), made integral with the annular peripheral section (3), on which there are holes (4) for fasteners and radial stiffeners (5) are made located around the central section (1) on one side of the flange. On the other side of the flange there are concentrically arranged the outer mounting ring (14) on the outer edge of the peripheral section (3) and the stop collar (6) around the central section (1). The central section (1) is made convex, for example, of a spherical shape (a hollow sphere segment) or of a convex conical shape (a truncated hollow cone part) and averted with convex from the connecting fitting (7). A pipe manifold or a main pipeline of water supply arrangements is connected to the fitting 7 in conventional manner. The pass of the fitting (7) is connected to the flow hole (2) of the central section (1). The flange is made of glass-filled polypropylene. On the peripheral section (3) between the holes (4) for the fasteners the arcuate stiffeners (8) are made. Between each adjacent holes (4) for fasteners one arcuate stiffener (8) and two radial stiffeners (5) are made. Radial and arcuate stiffeners (5,8) are made of different heights and connected together at the intersections. The monolithic plastic flange made of glass-filled polypropylene has such advantages as increased bearing capacity, as well as reliability and durability, lower cost of foundry, stainlessness, lower weight.

Description

Flange
Field of the invention
The invention relates to connecting elements of hydraulic equipment and can be used as part of hydraulic accumulators, tanks of various applications and other products, mainly having an elastic membrane or partition.
Prior art
A pipe joint flange is known, which is a sheet metal work made by coldforming method, consisting of a round base with a flanged edge with mounting holes, and a central cup-shaped protrusion in the form of a hollow cylinder with a round through hole, characterized in that when the sheet metal thickness from which the product is made is 3 mm, the diameter of the cup-shaped protrusion in the form of a hollow cylinder to the diameter of its passage hole ratio is 2:1, and the height of the cup-shaped protrusion does not exceed half the diameter of the passage hole with scattering of all these dimensions within ± 15% (RU 167377).
A flange is known with a central passage hole, and with a conical surface, the generatrix of which is located on the axis of the flange at an acute angle, including a sleeve with a cylindrical surface mounted in the inner hole and rigidly connected to the flange, a protective coating is applied on the side of the inner and outer surfaces of the sleeve with a range of operating temperatures from -60 to 150°C, and the coverage area of the welded joint is limited to the weld joint area (RU 57661).
A flange made of sheet metal is known, containing a central hole, a flat surface for placing the seal used to join the mating flange, an external bend in the form of a side surface, which is a stiffener, and mounting holes in the amount of not less than four (RU 2620535).
These known steel flanges have no sufficient bearing capacity, are corrodible, labor-intensive, have a large mass and high cost.
A plastic flange is also known, containing a tubular body with a thrust face, a ring with holes for bolt rods and stiffeners oriented from the ring to the thrust face and adjacent to the ring in the spaces between the holes, the body, ring and stiffeners are made in one piece, the minimum rib height on the ring side is equal to the difference in the radii of the hole centers for the bolt rods and the outer surface of the housing (SU 568783, prototype). The disadvantages of this flange are poor strength characteristics due to the non-optimal choice of material with a very limited shelf and service life, insufficient fracture resistance in the middle part of the flange and insufficient bending resistance in the peripheral part of the flange, which reduces the bearing capacity, reliability and durability of its operation, limits the allowable number of repair and other assembly and disassembly works.
Summary of the Inventions
The technical problem being solved by this technical solution is the creation of an effective and compact flange suitable for mass production by modem technological means, as well as the expansion of flanges range.
The technical result, which allows to solve this problem, consists in increasing the bearing capacity of the flange due to the fact that the central and peripheral parts of the flange have improved geometric and strength characteristics, providing for the increased reliability and durability of its operation, the allowable number of repair and other assembly and disassembly work has been increased. Simultaneously, the dynamic performance of the flange is improved, the design of which is less susceptible to vibrations, since it is substantially bent in the middle, and conditions are created for long-term operation (increased resource) with minimal wear of the flow part, which also allows to increase operational reliability.
The essence of the invention is that the plastic flange contains a central section with a flow hole and a connecting fitting, made integral with the annular peripheral section, on which there are holes for fasteners and radial stiffeners are made located around the central section on one side of the flange, on the other side of which the outer mounting ring and the stop collar are concentrically arranged around a central section made convex and averted with convex from the connecting fitting, the pass of which is connected to a flow hole of the central section.
The flange is preferably made of glass-filled polypropylene.
Preferably, in the peripheral section between the holes for the fasteners arcuate stiffeners are made.
Preferably, between each adjacent holes for fasteners one arcuate and two radial stiffeners are made. Preferably, the radial and arcuate stiffeners are made of different heights and are interconnected at their intersections.
In special cases of implementation, the connecting fitting is made with an external thread or the connecting fitting is made with a hole for an insert adapter with an external thread.
Preferably, the flow hole of the central section is made with separating elements.
Preferably, the central section is made convex spherical in shape.
Short description of drawings
In the drawing of Fig. 1, the flange without an adapter is shown, in Fig. 2 the flange with the adapter, Fig. 3 presents an example of the flange installation as part of a hydraulic accumulator, Fig. 4 shows volumetric general view of the flange.
Detailed Description of the Invention
The plastic flange contains a central section 1 with a flow hole 2 and a connecting fitting 7, made integral with an annular peripheral section 3, on which there are holes 4 for fasteners and radial stiffeners 5 are made located around the central section 1 on one side of the flange. On the other side of the flange there are concentrically arranged an outer mounting ring 14 on an outer edge of the peripheral section 3 and a stop collar 6 around the central section 1. The central section 1 is made convex, for example, of a spherical shape (a hollow sphere segment) or of a convex conical shape (a truncated hollow cone part) and averted with convex from the connecting fitting 7. A pipe manifold or a main pipeline of water supply arrangements is connected to the fitting 7 in conventional manner. The pass of the fitting 7 is connected to the flow hole 2 of the central section 1.
The flange is made of glass-filled polypropylene.
On the peripheral section 3 between the holes 4 for the fasteners the arcuate stiffeners 8 are made. Between each adjacent holes 4 for fasteners one arcuate stiffener 8 and two radial stiffeners 5 are made. Radial and arcuate stiffeners 5,8 are made of different heights and connected together at the intersections.
The connecting fitting 7 in special cases of implementation is made with an external thread (Figure 1) or with a hole for an insert adapter 9 with an external thread (Figure 2). The flow hole 2 of the central section 1 is made, as a rule, with separating elements 15.
The inventive flange can be installed in a household hydraulic accumulator for water supply arrangements (Fig. 3) having a housing 10 on which a counter flange 11 is turned on edges. Inside the housing 10 there is a membrane 12 sealed between the surfaces of the housing 10 and the inventive flange when screwing fasteners (screws) 13. The stop collar 6 eliminates excessive (destructive) force from pressing the peripheral section 3 at the edge of the membrane 12.
During operation, through the fitting 7 of the flange, water is supplied to the membrane 12 under excessive pressure. In the space between the membrane 12 and the housing 10 there is compressed air, the volume of which varies depending on the water pressure.
Thus, a certain amount of water is accumulated in the hydraulic accumulator under a certain pressure. Water is consumed from the hydraulic accumulator through the fitting 7 when the pressure drops in the pipe manifold of the water supply arrangements or in the consumer mains.
The manufacture of the inventive flange from glass-filled polypropylene imparts high anticorrosive and strength properties. The performance of the convex surface of section 1, directed inside the housing 10 during installation, radial and arcuate stiffeners 5 and 8 prevent deformation and the occurrence and transmission of vibrations from pipelines to the housing 10 of the hydraulic accumulator, provide high load-bearing capacity and thereby reduce restrictions on the pressure level in the hydraulic accumulator.
The separating elements 15 do not allow the membrane 12 to be pulled outward from the hydraulic accumulator housing 10 and can serve as a central stiffener of the flange.
The monolithic plastic flange made of glass-filled polypropylene has such advantages as increased bearing capacity, as well as reliability and durability, lower cost of foundry, stainlessness, lower weight.
Industrial application
The present invention is implemented with multipurpose equipment extensively employed by the industry.

Claims

Claims
1. A plastic flange comprising an integrally made central section with a flow hole and an annular peripheral section, on which there are holes for fasteners and radial stiffeners are made located around the central section on one side of the flange, on the other side of which an outer mounting ring and a stop collar are concentrically arranged around a central section, characterized in that it is provided with a connecting fitting made integral with the central section, wherein the central section is made convex and averted with convex from the connecting fitting, the pass of which is connected to the flow hole of the central section.
2. The flange according to claim 1, characterized in that it is made monolithic of glass-filled polypropylene.
3. The flange according to any one of claims 1,2, characterized in that arcuate stiffeners are made in the peripheral section between the holes for the fasteners.
4. The flange according to claim 3, characterized in that between each adjacent holes for fasteners one arcuate and two radial stiffeners are made.
5. The flange according to claim 3, characterized in that, the radial and arcuate stiffeners are made of different heights and are interconnected at their intersections.
6. The flange according to any one of claims 1,2, characterized in that the connecting fitting is made with an external thread.
7. The flange according to any one of claims 1,2, characterized in that the connecting fitting is made with a hole for an insert adapter with an external thread.
8. The flange according to any one of claims 1,2, characterized in that the flow hole of the central section is made with separating elements.
9. The flange according to any one of claims 1,2, characterized in that the central section is made convex spherical in shape.
PCT/RU2020/000077 2019-02-21 2020-02-18 Flange Ceased WO2020171739A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EA202100193A EA202100193A1 (en) 2019-02-21 2020-02-18 FLANGE
EP20759574.5A EP3928018A4 (en) 2019-02-21 2020-02-18 Flange

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2019104996 2019-02-21
RU2019104996 2019-02-21

Publications (1)

Publication Number Publication Date
WO2020171739A1 true WO2020171739A1 (en) 2020-08-27

Family

ID=72145039

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2020/000077 Ceased WO2020171739A1 (en) 2019-02-21 2020-02-18 Flange

Country Status (3)

Country Link
EP (1) EP3928018A4 (en)
EA (1) EA202100193A1 (en)
WO (1) WO2020171739A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU568783A1 (en) * 1975-09-22 1977-08-15 Киевский Отдел Специального Конструкторского Бюро По Новой Технике Монтажных И Специальных Строительных Работ Flange
RU57661U1 (en) * 2006-02-10 2006-10-27 ООО "Целер" FLANGE
WO2009136301A2 (en) 2008-05-07 2009-11-12 Zilmet Spa Plastic and fibreglass flange for surge tanks
JP2013044358A (en) 2011-08-23 2013-03-04 Sekisui Chem Co Ltd Flange joint and method of manufacturing the same
RU2620535C2 (en) * 2015-09-25 2017-05-26 Дмитрий Олегович Левин Flange and its forming method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7013925B1 (en) * 2004-11-18 2006-03-21 Shurflo, Llc Accumulator tank assembly and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU568783A1 (en) * 1975-09-22 1977-08-15 Киевский Отдел Специального Конструкторского Бюро По Новой Технике Монтажных И Специальных Строительных Работ Flange
RU57661U1 (en) * 2006-02-10 2006-10-27 ООО "Целер" FLANGE
WO2009136301A2 (en) 2008-05-07 2009-11-12 Zilmet Spa Plastic and fibreglass flange for surge tanks
JP2013044358A (en) 2011-08-23 2013-03-04 Sekisui Chem Co Ltd Flange joint and method of manufacturing the same
RU2620535C2 (en) * 2015-09-25 2017-05-26 Дмитрий Олегович Левин Flange and its forming method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3928018A4

Also Published As

Publication number Publication date
EP3928018A1 (en) 2021-12-29
EA202100193A1 (en) 2021-11-29
EP3928018A4 (en) 2022-05-18

Similar Documents

Publication Publication Date Title
EP2698573B1 (en) Isolation gasket
KR102308727B1 (en) Metallic flange connection gasket
US20170009918A1 (en) Gasket with compression and rotation control
KR20190040224A (en) Multi-panel slope hoop and pipe connector
CN106885074A (en) Breathing pipeline quick change attachment structure
CN101806379B (en) Rotary flange
WO2020171739A1 (en) Flange
US10145407B2 (en) Wave washer, method of manufacture, method of use, and pipe joint using same
US11204116B2 (en) Expansion joint fitting for flammable liquid
CN201539655U (en) High leakage-resistant flange joint
RU191389U1 (en) Flange
JPH1122825A (en) gasket
EA040752B1 (en) FLANGE
JPH1122826A (en) gasket
EP2472159A1 (en) Flange seal
CN110822216A (en) Flange cover and using method thereof
CN217234827U (en) Movable joint type sub-rigid body structure expansion joint
CN214146906U (en) Joint assembly
CN216045421U (en) Sealing device, assembled loose joint pipe fitting and pipeline system
JP2017133589A (en) Repair joint
CN214248642U (en) Multi-sealing corrosion-resistant pipeline expansion piece
EP4191104A1 (en) Internal-sealing one-piece external thread ball valve
CN215173062U (en) Water supply steel pipe with self-adaptation connector
CN119072596A (en) Clamp the valve plug tip in the control valve
RU2197672C2 (en) Pipeline detachable joint

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20759574

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020759574

Country of ref document: EP

Effective date: 20210921