GB903922A - Improvements in or relating to a "pig ball" recovery device - Google Patents

Improvements in or relating to a "pig ball" recovery device

Info

Publication number
GB903922A
GB903922A GB8134/61A GB813461A GB903922A GB 903922 A GB903922 A GB 903922A GB 8134/61 A GB8134/61 A GB 8134/61A GB 813461 A GB813461 A GB 813461A GB 903922 A GB903922 A GB 903922A
Authority
GB
United Kingdom
Prior art keywords
valve
chamber
pig ball
housing
seat
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
GB8134/61A
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.)
ROBERT SYLVESTER WILLIS
Original Assignee
ROBERT SYLVESTER WILLIS
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 ROBERT SYLVESTER WILLIS filed Critical ROBERT SYLVESTER WILLIS
Priority to GB8134/61A priority Critical patent/GB903922A/en
Publication of GB903922A publication Critical patent/GB903922A/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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/46—Launching or retrieval of pigs or moles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

903,922. Cleaning pipes; junction pieces. WILLIS, R. S. March 6, 1961, No. 8134/61. Classes 99(1) and 99(2). A " pig ball" recovery device comprises a valve housing 1 containing a valve chamber 2 and means connectable to flow lines 4, 4a leading in and out of the chamber 2, valve means 23 carried by a support 11, a valve seat 27, and " pig ball " recovery means comprising arresting means 40 for trapping the " pig ball" in the chamber 2, as shown, and " pig ball " receiver means 30 to receive the "pig ball" 41 upon being trapped, wherein the valve means 23 is movable to an unseated position permitting flow through the chamber 2 and permitting the passage of the " pig ball " from its trapped position in the chamber 2 into the receiver means 30 and the valve means is movable to a seated position permitting flow through the valve chamber and closing the receiver means 30 from the chamber 2. As shown, the valve head comprises a pair of annular members 23a, 23b held assembled on the end of a part screw-threaded stem 13 by means of split bushings 24, a retainer collar 25 and a retainer ring 26. The part 23a is formed with a seat for an annular resilient seating element 23c. The receiving means is formed by a housing 30 having a closure plug 31 in which is disposed a bleeder assembly comprising a plug 33 having a bleed screw 37 therein. The arresting means comprises a grid 40, having a series of longitudinal slots therethrough, which is seated in arcuate seats 41a and may be welded therein. A by-pass flow path P is formed around the grid so that when a " pig ball " 41 partially obstructs the openings in the grid 40, as shown, no significant reduction in flow area results. When the " pig ball " has been arrested in the valve chamber 2 the stem 13 is rotated to screw the latter through the bushing 14 disposed in a counter bore in the housing 11, force the " pig ball " 41 into the housing 30 and seat the valve element 23c on the seat 27 to seal the housing 30 from the valve chamber 2. Specification 903,923 is referred to.
GB8134/61A 1961-03-06 1961-03-06 Improvements in or relating to a "pig ball" recovery device Expired GB903922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8134/61A GB903922A (en) 1961-03-06 1961-03-06 Improvements in or relating to a "pig ball" recovery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8134/61A GB903922A (en) 1961-03-06 1961-03-06 Improvements in or relating to a "pig ball" recovery device

Publications (1)

Publication Number Publication Date
GB903922A true GB903922A (en) 1962-08-22

Family

ID=9846399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8134/61A Expired GB903922A (en) 1961-03-06 1961-03-06 Improvements in or relating to a "pig ball" recovery device

Country Status (1)

Country Link
GB (1) GB903922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011057165A1 (en) * 2009-11-06 2011-05-12 Tyco Valves & Controls Lp Pressure regulator having an integral pilot and self-relieving mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011057165A1 (en) * 2009-11-06 2011-05-12 Tyco Valves & Controls Lp Pressure regulator having an integral pilot and self-relieving mechanism

Similar Documents

Publication Publication Date Title
US2667895A (en) Magnetically biased check valve
US2930404A (en) Three-way poppet-valve construction for plug-type valve
GB1070920A (en) Rotary ball valve
US3308847A (en) Solenoid-operated, shut-off and regulator valve
GB1218228A (en) Improvements in and relating to ball valves
GB903922A (en) Improvements in or relating to a "pig ball" recovery device
US3454041A (en) Pressure reducer with check valve
US2977616A (en) Pig ball receiver
GB556863A (en) Improvements relating to automatic shut-off valves
GB917614A (en) Improvements in fluid-flow stop or control valves
ES485299A1 (en) Valve packing
US3109441A (en) Vibration responsive trip valve assembly
GB1134813A (en) Pressure control valve
GB1096434A (en) Improvements in or relating to automatic regulating valves for fluid flow
GB862536A (en) Improvements in valve closure members or bodies
SU141044A1 (en) Valve to gas systems
GB845323A (en) Improvements in or relating to manually controlled fluid control valves
GB856475A (en) Storm choke for wells
GB1047740A (en) Improvements in or relating to fluid control valves
GB874037A (en) Improvements in or relating to rotary valves
ATE16073T1 (en) DEVICE FOR DRINKING ANIMALS.
GB694138A (en) A flow check valve
GB940594A (en) Improvements in and relating to non-return valves
GB745266A (en) Improvements in or relating to non-return valves
GB903923A (en) Improvements in or relating to a "pig ball" injector device