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Hydraulically activated pipeline pigging (HAPP) is a pigging technology applied for pipeline cleaning. The basic principle is that a pressure drop is created over a by-passable pig held back against a pipeline's fluid flow. The pipeline fluid passing through the pigs cleaning head is accelerated by this pressure drop, forming strong cleaning jets.
Unlock and open door, remove pig from receiver, close and lock door. Pig receiver is then ready to receive the next pig. Pigging station. The pigging installation shown (right) is known as an Above Ground Installation (AGI). It is part of the UK's National Transmission System for natural gas. It shows two pig launcher/ receivers at the end of ...
August 15 – Two pipeline workers were injured when a lid on a pipeline pig trap blew off of a gas pipeline, near Barstow, Texas. A fire followed. [42] September 5 – A gasoline pipeline ruptured and ignited at a Plantation Pipeline Terminal in Bremen, Georgia. For a time, there were fears the fire might spread to nearby fuel storage tanks ...
June 28 – During a pipeline pig run, two people were killed and two were injured at Atmos Energy in Collin County, Texas. An investigation found that a leak on a mainline valve and improper procedures caused the accident. [22] July 22 – A natural gas transmission pipeline exploded & burned in Ellsworth County, Kansas. There were no injuries ...
California gun safety regulations going into effect Jan. 1. In September, California Gov. Gavin Newsom signed a series of laws aimed at strengthening gun safety regulations.Those include requiring ...
Aug 27, 2023; Atlanta, Georgia, USA; Xander Schauffele plays his shot from the sixth tee during the final round of the TOUR Championship golf tournament at East Lake Golf Club.
L.J. Cryer scored 22 points and had six 3-pointers, and No. 15 Houston used a strong defensive effort to beat Troy 62-42 on Tuesday night. Cryer scored 16 points in the first half on 6-of-9 ...
A trapdoor or hatch is a sliding or hinged door that is flush with the surface of a floor, ceiling, or roof. [1] It is traditionally small in size. [ 2 ] It was invented to facilitate the hoisting of grain up through mills, however, its list of uses has grown over time. [ 3 ]