The pins or bolts that hinge the rudder to the gudgeons on the sternpost or rudderpost.

Components such as sleeves, elbows, tees, bends, flanges, etc., which are used to join pipe sections.

Butt-welded joints, socket-welded joints, slip-on welded sleeve joints, flanged joints, threaded joints, expansion joints.

Pipe schedules are designations of pipe wall thicknesses as given in American National Standard Institute, ANSI B36.10.

The void space running in the midships fore and aft lines between the inner bottom and shell plating forming a space for ballast, bilge and/or fuel lines.

SEVEN BOREALIS is 182.2m long, with a breadth of 46.2m, and an operating draft of 8.5-11.35m.

J-lay method - One method for installing subsea pipelines in deepwater is by J-lay installation.

Deepwater installation vessel MIDNIGHT EXPRESS was converted from a former LASH barge by the Canadian shipyard Davie Maritime in Quebec.

A primarily horizontal pipe lying on, near or beneath the seabed normally used for the transportation of hydrocarbon products, (ABS).

Arrangement of two or more pipelines laid parallel and directly contiguous.

A significant part of pipelying vessel time is used for special operations like PLET handling or diameter changes.

An integrated set of sub-sea flowlines and pipelines including pertinent instrumentation, foundation, coatings, anchors, etc, (ABS).

Pipeline transport is the long-distance transportation of a liquid or gas through a system of pipes—a pipeline—typically to a market area for consumption.

Pipes are pressure-tight cylinders used to contain and convey fluids.

Piping is a system of pipes used to convey fluids (liquids and gases) from one location to another.

A piping and instrumentation diagram (P&ID) is a detailed diagram in the process industry which shows the piping and process equipment together with the instrumentation and control devices.

Pipes, tubes, valves, fittings, flanges, gaskets, bolting, hoses, expansion joints, sight flow glasses, filters, strainers, instruments connected to pipes, etc.

A network of piping designed and assembled to serve a specific purpose. Piping systems interface, but exclude, major equipment, such as boilers, pressure vessels, tanks, engines, turbine etc.

A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms.

Piston head – The upper part of a piston exposed to hot gases in an engine.