Pipe pig injector

Details Pipe pig injector Pipe pig injector

B - Operations, Transporting

08

B

B08B 9/04 (2006.01)

Patent

CA 2197277

A pig injector has a magazine having a plug at one end and connected to a pig injector valve at the other end. The pig injector valve has a rotatable pig receiving chamber with a length L. Plural pigs of length L between rounded ends are positioned end to end within the elongate interior cavity of the magazine. A method of injecting pigs into a pipe at a pig injector valve comprising: (a) storing plural pigs in a magazine connected to the pig injector valve; (b) rotating the ball of the pig injector valve to be in position to receive a pig and close the pipe; (c) moving a pig from the magazine into the pig injector valve; (d) rotating the ball of the pig injector valve to open the pig injector valve and release the pig in the pipe; (e) moving the pig away from the pig injector valve with fluid pressure in the pipe; and subsequently repeating steps (b)-(e) with a second pig. Steps (b) - (e) may be repeated plural times and at regular intervals.

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