GB1216723A - Improvements in and relating to screw-threaded pipe couplings - Google Patents

Improvements in and relating to screw-threaded pipe couplings

Info

Publication number
GB1216723A
GB1216723A GB581968A GB581968A GB1216723A GB 1216723 A GB1216723 A GB 1216723A GB 581968 A GB581968 A GB 581968A GB 581968 A GB581968 A GB 581968A GB 1216723 A GB1216723 A GB 1216723A
Authority
GB
United Kingdom
Prior art keywords
nut
pipe
union
ring
bracing ring
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
Application number
GB581968A
Inventor
Gunter Kias
Hasso Hinkel
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.)
ERMETO ROHRVERSCHRAUBUNG GmbH
Original Assignee
ERMETO ROHRVERSCHRAUBUNG 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 ERMETO ROHRVERSCHRAUBUNG GmbH filed Critical ERMETO ROHRVERSCHRAUBUNG GmbH
Priority to GB581968A priority Critical patent/GB1216723A/en
Publication of GB1216723A publication Critical patent/GB1216723A/en
Expired 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/04—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
    • F16L19/043—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with additional sealing means
    • F16L19/046—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with additional sealing means consisting of a soft ring
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/061—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends a pressure ring being arranged between the clamping ring and the threaded member or the connecting member
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Pressure Members (AREA)

Abstract

1,216,723. Pipe couplings. ERMETO ROHRVERSCHRAUBUNG G.m.b.H. 6 Feb., 1968, No. 5819/68. Heading F2G. A pipe coupling is of the kind comprising an externally screwthreaded union 6 against which the end of the metal or plastic pipe 1 to be connected abuts and is secured by an internally screwthreaded nut 2 and packing means, wherein the packing means comprises a bracing ring 5, which also abuts the union and is formed with an inclined face, and a sealing ring 4 of plastics material arranged in a recess formed by a plain bore 2<SP>1</SP> of the nut 2 and an inwardly directed collar portion 211 thereof, the arrangement being such that after assembly and tightening of the nut the bracing ring is caused by the pressure exerted through the sealing ring on its tapering surface to urge the pipe into contact with the end face of the union. This is effected by pivoting of the bracing ring about its point of contact with the union, which causes it to deform the pipe slightly, so that on subsequent dismantling the parts 2, 4, 5 cannot be lost. A locking ring 3 is preferably included, both to allow for excessive clearance between the nut and the pipe and also to prevent overtightening of the nut. As shown, the sealing ring 4 is adapted to flow into the first groove of the threading in the nut to further assist sealing. The inclined face on the bracing ring is preferably a 30 degree bevel. It may alternatively be constructed as an ogee.
GB581968A 1968-02-06 1968-02-06 Improvements in and relating to screw-threaded pipe couplings Expired GB1216723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB581968A GB1216723A (en) 1968-02-06 1968-02-06 Improvements in and relating to screw-threaded pipe couplings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB581968A GB1216723A (en) 1968-02-06 1968-02-06 Improvements in and relating to screw-threaded pipe couplings

Publications (1)

Publication Number Publication Date
GB1216723A true GB1216723A (en) 1970-12-23

Family

ID=9803195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB581968A Expired GB1216723A (en) 1968-02-06 1968-02-06 Improvements in and relating to screw-threaded pipe couplings

Country Status (1)

Country Link
GB (1) GB1216723A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53166115U (en) * 1977-06-03 1978-12-26
JPS53166116U (en) * 1977-06-03 1978-12-26
GB2129892A (en) * 1982-10-28 1984-05-23 Wirsbo Bruks Ab Pipe compression fitting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53166115U (en) * 1977-06-03 1978-12-26
JPS53166116U (en) * 1977-06-03 1978-12-26
GB2129892A (en) * 1982-10-28 1984-05-23 Wirsbo Bruks Ab Pipe compression fitting

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