Abstract: Pipeline apparatus comprising a housing including a riser and a pipeline connector and a device configured to interact with fluid flowing through the pipeline connector, a mounting means for releasably mounting the device in the riser and seal means situated between an inner surface of the riser and an outer surface of the mounting means, the seal means configured to seal against egress of fluid from the apparatus, the mounting means and the riser each including a part of a locking means for releasably locking the device in the riser, the device situated in the pipeline connector.

Abstract: Pipeline apparatus comprising a housing including a riser and a pipeline connector and a device configured to interact with fluid flowing through the pipeline connector, a mounting structure for releasably mounting the device in the riser and seal situated between an inner surface of the riser and an outer surface of the mounting structure, the seal configured to seal against egress of fluid from the apparatus, the mounting structure and the riser each including a part of a locking structure for releasably locking the device in the riser, the device situated in the pipeline connector.

Abstract: Pipeline apparatus comprising a housing (2) including a riser (2a) and a pipeline connector (2b) and a device (3) configured to interact with fluid flowing through the pipeline connector, a mounting means (25) for releasably mounting the device in the riser and seal means (50) situated between an inner surface of the riser and an outer surface of the mounting means, the seal means configured to seal against egress of fluid from the apparatus, the mounting means and the riser each including a part of a locking means (27, 28) for releasably locking the device in the riser, the device situated in the pipeline connector.

Abstract: Pipeline apparatus (1) comprises a housing (2) including a riser (2a) and a pipeline connector (2b) and a seal pack assembly mounted in a member that is mounted in the riser (2a), the apparatus (1) including a shaft (12) extending through the seal pack assembly. The seal pack assembly includes at least one seal situated and configured to provide a seal between the outer surface of the shaft (12) and a component of the seal pack assembly through which the shaft (12) extends, that component being releasably attached to the member.

Abstract: Pipeline apparatus comprises a housing including a riser and a pipeline connector and a seal pack assembly mounted in a member that is mounted in the riser, the apparatus including a shaft extending through the seal pack assembly. The seal pack assembly includes at least one seal situated and configured to provide a seal between the outer surface of the shaft and a component of the seal pack assembly through which the shaft extends, that component being releasably attached to the member.

Abstract: Pipeline apparatus comprises a housing including a riser and a pipeline connector and a seal pack assembly mounted in a member that is mounted in the riser, the apparatus including a shaft extending through the seal pack assembly. The seal pack assembly includes at least one seal situated and configured to provide a seal between the outer surface of the shaft and a component of the seal pack assembly through which the shaft extends, the component being releasably attached to the member.

Abstract: Pipeline apparatus comprising a housing including a riser and a pipeline connector and a device configured to interact with fluid flowing through the pipeline connector, a mounting means for releasably mounting the device in the riser and seal means situated between an inner surface of the riser and an outer surface of the mounting means, the seal means configured to seal against egress of fluid from the apparatus, the mounting means and the riser each including a part of a locking means for releasably locking the device in the riser, the device situated in the pipeline connector.

Abstract: Pipeline apparatus comprises a housing including a riser and a pipeline connector and a seal pack assembly mourned in a member that is mounted in the riser, the apparatus including a shaft extending through the seal pack assembly. The seal pack assembly includes at least one seal situated and configured to provide a seat between the outer surface of the shaft and a component of the seal pack assembly through which the shaft extends, that component being releasably attached so the member.

Abstract: Pipeline apparatus composes a housing including a riser and a pipeline connector and a seal pack assembly mounted in a member that is mounted in the riser, the apparatus including a shaft extending through the seal pack assembly. The seal pack assembly includes at least one seal situated and configured to provide a seal between the outer surface of the shaft and a component of the seal pack assembly through which the shaft extends, that component being releasably attached to the member.

Abstract: Pipeline apparatus (1) comprises a housing (2) including a riser (2a) and a pipeline connector (2b) and a seal pack assembly mounted in a member that is mounted in the riser (2a), the apparatus (1) including a shaft (12) extending through the seal pack assembly. The seal pack assembly includes at least one seal situated and configured to provide a seal between the outer surface of the shaft (12) and a component of the seal pack assembly through which the shaft (12) extends, that component being releasably attached to the member.

Abstract: A device for freeing a seized valve having an elongate valve actuating stem projecting out of the valve is described, which comprises gripping means for gripping and engaging with a projecting portion of the valve actuating stem and means enabling the gripping means, when gripping the valve actuating stem, to be subjected to impact forces in a rotational direction relative to the longitudinal direction of the valve stem.

Abstract: In order to free a seized valve, an inspection port is formed in a wall of the valve body and the areas where the valve is seized are determined. One or more injection ports are formed in the valve body adjacent to the seized portions of the valve, pressurized fluid (preferably an insoluble lubricant having a very high cone penetration) is injected through the or each injection port and the injection ports are then closed.