US3738383A - Structure with protective covering against ambient influences - Google Patents

Structure with protective covering against ambient influences Download PDF

Info

Publication number
US3738383A
US3738383A US00197807A US3738383DA US3738383A US 3738383 A US3738383 A US 3738383A US 00197807 A US00197807 A US 00197807A US 3738383D A US3738383D A US 3738383DA US 3738383 A US3738383 A US 3738383A
Authority
US
United States
Prior art keywords
sheath
valve
ambient influences
arrangement
flanges
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.)
Expired - Lifetime
Application number
US00197807A
Other languages
English (en)
Inventor
W David
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.)
Bopp and Reuther GmbH
Original Assignee
Bopp and Reuther GmbH
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 Bopp and Reuther GmbH filed Critical Bopp and Reuther GmbH
Application granted granted Critical
Publication of US3738383A publication Critical patent/US3738383A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/12—Covers for housings
    • 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
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/50—Flanged connections
    • F16B2200/506—Flanged connections bolted or riveted
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/60—Coupler sealing means
    • 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
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7036—Jacketed
    • 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
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields
    • Y10T137/7058—Sanitary covers or shields

Definitions

  • a valve housing, connected pipe flanges or similar Cl 287/ structure is surrounded by a one-piece sheath of elasti- [5 Cl. ally distendable material resistance to the ambient in- Field of Search fluences against the gagture is to be protected 285/45, 205/46 /52 52
  • the hollow interior of the sheath has an interior con- 137/378, 251/335 tour which corresponds to the outer contour of the structure and the sheath tightly encases the structure in References Cited surface-to-surface relationship.
  • valve components are to be laid on ground or below ground, and are provided with valves, it is already known to coat the valve components-particularly the housingwith a coating of protective lacquer or the like in order to prevent the corrosion of such components.
  • a protective coating can and frequently is removed in part during installation, as a result of impacts which cause it to flake or break off locally, so that a complete and reliable corrosion protection is not assured.
  • the outermost flange connecting screws or bolts are endangered by corrosion in such constructions, it being evidently economically impractical to make such components of rust-free steel to avoid this difficulty.
  • one feature of the invention resides in the provision of an arrangement of the character described which, briefly stated, comprises a structure which is to be protected against ambient influences and which has at least in part a given outer contour, and a discrete one-piece sheath of elastically distendable material resistant to such ambient influences.
  • the sheath has a hollow interior whose inner contour corresponds to the outer contour and tightly encases the structure in surface-to-surface relationship therewith.
  • the sheath is not only of one piece but is separate from the structure itself, being produced independently, and is pulled onto the structure or the part thereof which is to be protected, under simultaneous distending of the material of the sheath. In this manner a reliable and complete protection of the structure or part thereof is assured, and moreover can be provided by applying the protective sheath in situ, that is at the time and place of use rather than in the factory. This avoids the possibility of damage to the sheath during loading and transporting.
  • the sheath according to the present invention can be produced in very simple manner, by resorting to massproduction techniques, being made of a suitable synthetic plastic material by dipping, injection-molding or by press-molding. It can be applied in situ without any tools or other aids and with a minimum loss of time.
  • the structure which is to be protected is a valve, in particular of the gate-valve type, and has a tubular portion provided at opposite axial ends with connecting flanges for connection to pipe sections, and a housing which extends transversely to the axis of the tubular portion and to which a hood-part is connected by means of additional flanges, then it is advantageous according to a further concept of the invention to provide the sheath at one lateral side with a slot which extends longitudinally of the tubular portion and another slot which extends normal to the first slot in order to facilitate placing of the sheath about the valve whereupon the slots are closed by welding, vulcanizing, bonding or the like in order to make them fluid-tight.
  • the latter can be placed in a very simple and time-saving manner not only about the housing of the valve itself, but also about the tubular portion which, as already indicated above, usually extends at a right angle to the housing itself. Furthermore, even with this construction the utilization of the two aforementioned slots makes it possible still to employ a one-piece sheath. It is simply necessary to distend the material of the sheath at the two slots which cross and intersect one another, and to apply the sheath onto the valve and subsequently to close the slots or slits whereupon the valve is completely encased and protected.
  • sheath with portions-of one piece with the remainder of the sheath-- which also surround not only the connecting flanges of the valve itself, but also those flanges of the pipe sections which are respectively connected with these connecting flanges.
  • FIG. 1 is a partially sectioned side-elevational view of a valve structure provided with a sheath according to the present invention
  • FIG. 2 is a view analogous to FIG. 2 but showing a different embodiment
  • FIG. 3 is a somewhat diagrammatic, partially sectioned view illustrating still another embodiment of the invention.
  • reference numeral 1 identifies a valve in toto.
  • This valve is of the gate-valve type having an elongated tubular portion 2 which is provided at its opposite axial ends with connecting flanges 3 and 4. Extending transversely of the axial elongation of the tubular portion 2 is a housing portion 5 provided with a flange 6 to which there is secured by means of an additional flange 8 a hood 7.
  • the flanges 6 and 8 are connected with one another by means of screws or bolts 9 and at its upper end the hood 2 is further provided with a head portion 10 which is secured with the hood 7 by means of exteriorly exposed screws or bolts 18.v
  • the head portion 10 mounts the journal 11 in which the spindle 12 is turnably received, with seals 13 and 14 being provided to seal the interior of the housing 5, 6 and 7.
  • a nut 16 cooperates with the spindle 12 and is mounted in the valve member or gate which, when the spindle 12 is turned in requisite sense, moves upwardly or downwardly in FIG. 1 in order to either extend across the cross-section of the tubular portion 2 as illustrated, thereby preventing fluid flow therethrough, or to be partly or completely retracted from this crosssection in conventional manner.
  • a discrete one-piece sheath 17 for corrosion protecting purposes which is a separate element entirely independently produced in so far as the valve 1 is concerned and composed of an elastically distendable synthetic plastic material.
  • the interior of the sheath 17 has a contour corresponding to the exterior contour of the valve 1, or
  • the sheath 17 When the sheath 17 is applied to the valve 1, it surrounds and encases the same downwardly to the housing 5 in tight surface-to-surface engagement. It thus protects the connecting screws or bolts 9 which connect the flanges 6 and 8 with one another, as well as the screws or bolts 18 and the portions 10, 7 and parts of the portion 5.
  • the wall thickness of the sheath 1 should be adequate for such purposes, and may be on the order of one millimeter or more. No attempt has been made in the drawing to provide a correct proportional showing of the dimensions of the various components.
  • the distending capability of the material of the sheath 17 is sufficient so that the lower marginal portion 19 bounding the lower opening in the sheath 17 can be sufficiently distended outwardly to be pulled over the flanges 8 and 6.
  • the sheath 17 may be provided at one lateral side with a slit extending in the direction of elongation of the spindle 17, thus permitting its ready application about the parts of the valve 1 which are to be protected as shown in FIG. 1.
  • the edges bounding the slit are then subsequently fluid-tightly connected with one another by heat-welding, bonding, vulcanizing or the like.
  • the marginal portions 19 and 20 are bounded by use of suitable adhesives or the like to the corresponding surface portions of the housing 5 and of the head portion 10, respectively.
  • the aforementioned corresponding surface portions of the housing 5 and of the head portion 10 may be coated with a suitable adhesive before the sheath 17 is applied.
  • FIG. 2 shows a further embodiment of the invention in which like reference numerals designate like components as in FIG. 1.
  • the sheath 17 covers not only the parts of the valve which are shown in FIG. 1, but in fact covers the entire valve and also the flanges of the associated pipe sections. Such a complete coverage and protection is required where cathodic protection is needed.
  • the sheath 17 has a portion 21 provided with the upper margin 20; in addition, it has a portion 22 surrounding the hood of the valve, a portion 23 surrounding the flanges connecting the hood and the hous ing of the valve, a portion 24 surrounding the valve housing itself, and a portion 25 surrounding the tubular portion of the valve.
  • the sheath 17 is also provided with portions 26 and 27 each of which covers one of the end flanges of the tubular portion of the valve and the flange of an associated pipe section which is associated with the respective end flange.
  • the sheath 17 is provided at one lateral side thereof with a slit 32 which extends in axial direction of the portion 25 and with an additional slit 33 which extends normal to the slit 32.
  • the provision of the slits 32 and 33 permits the material of the sheath 17 to be elastically distended and bent apart along these slits so that it can be placed over the valve and the flanges from one lateral side. Subsequently, the sheath 17 is released and the slits 32 and 33 are closed, after their edges are firstly tightly abutted, either by heat-welding, by vulcanizing, by bonding via a suitable bonding agent, or the like.
  • FIG. 3 shows that the invention is also applicable to protect the juncture between the connected flanges of two pipe sections.
  • the sheath is again identified with reference numeral 17 and the flanges of the two connected pipe sections are identified with reference characters A and B, respectively. They are connected by bolt connections C as illustrated.
  • the sheath 17 has a portion 34 which embraces and encases the flanges A and B as well as the bolt connections C. Of one piece with the portion 34 are end portions 35 and 36 which cover annular portions of the respective pipe sections adjacent the respective flanges A and B.
  • the sheath 17 in the embodiment of FIG. 3 is applied by first distending either the portion 35 or 36 and placing the sheath onto one of the two pipe sections, whereupon the flanges A and B are abutted and connected by the bolt connections C. Subsequently the other portion (36 or 35) is distended and the sheath is moved into place as illustrated, with marginal portions bounding the openings and the portions 35 and 36 being bonded to the pipe sections as previously described.
  • one lateral side of the sheath 17 may be provided with an axially extending slit 37 which is shown in phantom lines, to permit application of the sheath 17 onto the pipe sections even after their flanges A and B have been connected. In this case it is of course necessary subsequently to close the slit 37 fluid-tightly in the manner previously discussed.
  • An arrangement of the character described comprising a valve which is to be protected against ambient influences and which has at least in part a given outer contour; and a discrete one-piece sheath of elastically distended sheet material resistant to said ambient influences, said sheath tightly encasing said valve in surfaceto-surface contact therewith and having an inner contour which corresponds to said outer contour and which in distended state equals the dimensions thereof while in relaxed state it is of smaller dimensions than those of said outer contour.
  • valve comprising at least two sections, and connecting means connecting said sections and exposed at the exterior of the same; and wherein said sheath encases said sections and also said connecting means.
  • said sheath having a plurality of openings through which portions of said valve extend to the exterior of said sheath; and further comprising means tightly connecting marginal portions of said sheath bounding the respective openings with juxtaposed surface portions of said valve.
  • An arrangement of the character described comprising a valve which is to be protected against ambient influences, said valve having a tubular portion provided at opposite axial ends with end flanges, and a housing portion extending from said tubular portion transversely to the axis thereof; a discrete one-piece sheath of elastically distendable material resistant to said ambient influences and tightly encasing said valve in surface-to-surface contact, said sheath being provided in a lateral side with a first slit extending axially along said tubular portion for admission of the same and with a second slit normal to said first slit and extending along said housing portion for admission of the latter; and means closing said slits when said sheath encases said valve.
  • An arrangement as defined in claim 6, further comprising a pair of pipe sections each having a connecting flange connected with one of said end flanges; and wherein said sheath comprises a pair of sections each of which encases one of said end flanges and the respective connecting flange which is connected thereto.
  • a method of protecting a valve against ambient influences comprising the steps of providing a valve having a tubular portion having opposite axial ends and a housing portion extending from said tubular portion transversely to the axis thereof; providing a one-piece sheath of elastically distendable material resistant to said influences and having a hollow interior whose inner contour corresponds to the outer contour of said valve; forming said sheath in one lateral side thereof with one slit extending in axial direction of said tubular portion and an other slit extending normal to said one slit; widening said slits by distending the material of said sheath, and thereupon placing said sheath about said valve; and fluid-tightly connecting the edges bounding the respective slits.
  • a method of protecting a structure in part against ambient influences comprising the steps of providing a structure having a part which is to be protected against ambient influences; providing a one-piece sheath of sheet material which is elastically distendable and resistant to said ambient influences, having a hollow interior whose inner contour is dimensionally smaller than but otherwise corresponds to the outer contour of said part and which is provided with at least one opening smaller than said part and through which the latter is to be admitted into said sheath; elastically distending said opening and said sheath and placing the sheath over said part; permitting the distended sheath to relax so that it engages said part in surface-to-surface contact therewith; and fluid-tightly bonding an annular marginal portion of said sheath bounding said opening,

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Valve Housings (AREA)
  • Prevention Of Electric Corrosion (AREA)
US00197807A 1970-11-19 1971-11-11 Structure with protective covering against ambient influences Expired - Lifetime US3738383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2056860A DE2056860C3 (de) 1970-11-19 1970-11-19 Verfahren zum Herstellen eines Schutzüberzuges an Absperrarmaturen

Publications (1)

Publication Number Publication Date
US3738383A true US3738383A (en) 1973-06-12

Family

ID=5788542

Family Applications (1)

Application Number Title Priority Date Filing Date
US00197807A Expired - Lifetime US3738383A (en) 1970-11-19 1971-11-11 Structure with protective covering against ambient influences

Country Status (9)

Country Link
US (1) US3738383A (fr)
AT (1) AT320361B (fr)
BE (1) BE773298A (fr)
CH (1) CH536455A (fr)
DE (1) DE2056860C3 (fr)
FR (1) FR2114952A5 (fr)
GB (1) GB1376175A (fr)
NL (1) NL7114661A (fr)
SE (1) SE374424B (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205642A (en) * 1977-07-18 1980-06-03 Toyota Jidosha Kogyo Kabushiki Kaisha Cover for a ventilation valve
US4216980A (en) * 1978-10-23 1980-08-12 Martec Industries Inc. Safety shield for flanged pipe coupling
US4313593A (en) * 1979-02-20 1982-02-02 Neptune Glenfield Limited Gate valves
US4676268A (en) * 1984-04-20 1987-06-30 Asahi Yukizai Kogyo Co., Ltd. Plastic gate valve
US4777977A (en) * 1984-12-31 1988-10-18 Itt Corporation Composite butterfly valve housing
US5409654A (en) * 1993-08-05 1995-04-25 Nibco Inc. Method of reaction injection molding a valve
US5413096A (en) * 1991-06-28 1995-05-09 U. S. Divers Co., Inc. Regulator with improved high pressure seat due to a plastic-covered valve body
US5470110A (en) * 1994-02-07 1995-11-28 Hupe; Lawrence R. Safety shield for flange type coupling
US5746198A (en) * 1997-03-13 1998-05-05 U.S. Divers Co., Inc. Valve for a first stage regulator having an encapsulated head
US6032688A (en) * 1998-07-21 2000-03-07 Marshall Byars; Ann L. Sealing device for a valve of an insulated pipe
WO2001025658A1 (fr) * 1999-10-07 2001-04-12 A & G Group S.R.L. Soupape pour canalisations de transport de fluides
US20020134385A1 (en) * 2001-03-23 2002-09-26 Nino Pietrelli Regulator for underwater breathing devices
US20120183348A1 (en) * 2010-12-22 2012-07-19 Multivac Sepp Haggenmueller Gmbh & Co. Kg Drive unit with gasket
AU2014301381B2 (en) * 2013-06-28 2018-06-28 KSB SE & Co. KGaA Fluid-conducting system with cathodic corrosion protection
US10161555B2 (en) * 2014-03-31 2018-12-25 Waterworks Technology Development Organization Co., Ltd. Coated expandable-contractible flexible pipe
CN113566035A (zh) * 2021-08-19 2021-10-29 温州漏腐蚀五金制品有限公司 一种带引流装置的法兰阀门全密封防腐系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133699A (zh) * 2011-03-03 2011-07-27 自贡市巨光硬面材料有限公司 一种耐腐耐磨钢管制造工艺
CN105782604B (zh) * 2016-04-14 2018-05-29 利辛县风雅颂机电科技有限公司 一种真空保护式法兰连接件

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US937570A (en) * 1909-02-06 1909-10-19 Septimus B Davis Spigot-guard.
US2735699A (en) * 1956-02-21 chadbourne
US3140495A (en) * 1960-09-09 1964-07-14 Wilson Rubber Company Glove assembly
US3163450A (en) * 1962-09-14 1964-12-29 Jr Harry E Eirhart Quick-detachable hydraulic coupling
US3396940A (en) * 1966-02-17 1968-08-13 Henry Valve Co Packless valve with anti-frost means
US3410303A (en) * 1966-11-09 1968-11-12 Johnson Entpr Inc Cover for a dispensing faucet
US3425724A (en) * 1966-08-24 1969-02-04 Amsted Ind Inc Protective covering

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735699A (en) * 1956-02-21 chadbourne
US937570A (en) * 1909-02-06 1909-10-19 Septimus B Davis Spigot-guard.
US3140495A (en) * 1960-09-09 1964-07-14 Wilson Rubber Company Glove assembly
US3163450A (en) * 1962-09-14 1964-12-29 Jr Harry E Eirhart Quick-detachable hydraulic coupling
US3396940A (en) * 1966-02-17 1968-08-13 Henry Valve Co Packless valve with anti-frost means
US3425724A (en) * 1966-08-24 1969-02-04 Amsted Ind Inc Protective covering
US3410303A (en) * 1966-11-09 1968-11-12 Johnson Entpr Inc Cover for a dispensing faucet

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205642A (en) * 1977-07-18 1980-06-03 Toyota Jidosha Kogyo Kabushiki Kaisha Cover for a ventilation valve
US4216980A (en) * 1978-10-23 1980-08-12 Martec Industries Inc. Safety shield for flanged pipe coupling
US4313593A (en) * 1979-02-20 1982-02-02 Neptune Glenfield Limited Gate valves
US4676268A (en) * 1984-04-20 1987-06-30 Asahi Yukizai Kogyo Co., Ltd. Plastic gate valve
US4777977A (en) * 1984-12-31 1988-10-18 Itt Corporation Composite butterfly valve housing
US5413096A (en) * 1991-06-28 1995-05-09 U. S. Divers Co., Inc. Regulator with improved high pressure seat due to a plastic-covered valve body
US5409654A (en) * 1993-08-05 1995-04-25 Nibco Inc. Method of reaction injection molding a valve
US5503544A (en) * 1993-08-05 1996-04-02 Nibco Inc. Mold for reaction injection molding of a valve
US5509441A (en) * 1993-08-05 1996-04-23 Nibco Inc. Reaction injection molded valve
US5470110A (en) * 1994-02-07 1995-11-28 Hupe; Lawrence R. Safety shield for flange type coupling
US5746198A (en) * 1997-03-13 1998-05-05 U.S. Divers Co., Inc. Valve for a first stage regulator having an encapsulated head
US6032688A (en) * 1998-07-21 2000-03-07 Marshall Byars; Ann L. Sealing device for a valve of an insulated pipe
WO2001025658A1 (fr) * 1999-10-07 2001-04-12 A & G Group S.R.L. Soupape pour canalisations de transport de fluides
US20020134385A1 (en) * 2001-03-23 2002-09-26 Nino Pietrelli Regulator for underwater breathing devices
US7174892B2 (en) * 2001-03-23 2007-02-13 Htm Sport S.P.A. Regulator for underwater breathing devices
US20120183348A1 (en) * 2010-12-22 2012-07-19 Multivac Sepp Haggenmueller Gmbh & Co. Kg Drive unit with gasket
AU2014301381B2 (en) * 2013-06-28 2018-06-28 KSB SE & Co. KGaA Fluid-conducting system with cathodic corrosion protection
US10731786B2 (en) * 2013-06-28 2020-08-04 Ksb Aktiengesellschaft Fluid-conducting system with cathodic corrosion protection
US10161555B2 (en) * 2014-03-31 2018-12-25 Waterworks Technology Development Organization Co., Ltd. Coated expandable-contractible flexible pipe
CN113566035A (zh) * 2021-08-19 2021-10-29 温州漏腐蚀五金制品有限公司 一种带引流装置的法兰阀门全密封防腐系统

Also Published As

Publication number Publication date
DE2056860A1 (de) 1972-05-25
CH536455A (de) 1973-04-30
DE2056860B2 (de) 1973-10-25
BE773298A (fr) 1972-01-17
NL7114661A (fr) 1972-05-24
SE374424B (fr) 1975-03-03
FR2114952A5 (fr) 1972-06-30
GB1376175A (en) 1974-12-04
DE2056860C3 (de) 1974-05-22
AT320361B (de) 1975-02-10

Similar Documents

Publication Publication Date Title
US3738383A (en) Structure with protective covering against ambient influences
DE2012558C2 (de) Isoliertes Rohrleitungssystem, insbesondere Fernheizungsrohranlage
US2928411A (en) Structure for protecting metallic columnar elements
US4073836A (en) Method and apparatus for sealing a pipeline leak
US2708123A (en) Pipe joint protector
US4084067A (en) Re-enterable split cable splice enclosure with locking strips and cooperable detent means
US4993875A (en) Pipe sealing and anti-corrosion system
US3209067A (en) Sealed splice enclosure for cables
DE102015117332A1 (de) Wasserstoffzufuhrleitung und Verfahren zum Herstellen einer Wasserstoffzufuhrleitung
DE3810788A1 (de) Ventilblockaggregat
US3130259A (en) Splice box with cable entrance seals
US3636240A (en) Cable splice protector
JPS6231794A (ja) 管接合部の防食工法
DE69604444T2 (de) Zum Spritzgiessverkapseln geeignete Kabelmuffe für einen langgestreckten Kabelspleiss
US2839596A (en) Splice sleeve
US3459156A (en) Device for impregnating wire rope
US2887446A (en) Pipe coupling
US3433507A (en) Split t
US3422211A (en) Apparatus for establishing a fluid-tight bypass
JPS6125312Y2 (fr)
JPS6240226Y2 (fr)
DE2453508A1 (de) Kuehlschrankgehaeuse mit einem koerper, der aus isolierschaummaterial besteht, das an ort und stelle zwischen einer inneren schicht und einer aeusseren oberflaechenschicht angebracht wird
JP2025004620A (ja) 配管の継手構造および配管の継手構造の組み立て方法
GB1597621A (en) Sealing of flanged components
US3430800A (en) Wire connection cover