Rocks & mirror

WÄRTSILÄ
Encyclopedia of Marine and Energy Technology

P

423 results

Pier

marine

The structure perpendicular to the shoreline to which a vessel is secured for the purpose of cargo loading and unloading.

Piezometer

energy

A piezometer is either a device used to measure liquid pressure in a system by measuring the height to which a column of the liquid rises against gravity, or a device which measures the pressure (more precisely, the piezometric head) of groundwater at a specific point.

Piezoresistive silicon pressure sensor

energy

The Sensor is generally a temperature compensated, piezoresistive silicon pressure sensor chosen for its excellent performance and long-term stability.

Piezoresistive strain gauge

energy

Uses the piezoresistive effect of bonded or formed strain gauges to detect strain due to applied pressure.

Pigging

energy

In pipeline transportation, pigging is the practice of using pipeline inspection gauges, devices generally referred to as pigs or scrapers, to perform various maintenance operations.

Piggy-back cover

marine

Hatch cover arrangement where a wheeled panel carriers another panel on its top during travel on the coaming.

Pigments (painting)

marine

Powders, insoluble in resins, which give the paints their colour, finish, and protective properties.

Pile

marine

A hollow steel pipe installed into the sea bed by means of a piling hammer or vibrator and used as anchoring point.

Pile driving

energy

Typical construction process for a wind turbine sub-sea monopile foundation in sand.

Pillar

marine

Vertical member or column giving support to a deck girder, flat or similar structure: also called stanchion.

Pilot

marine

A person who is qualified to assist the master in navigation while entering or leaving a port.

Pilot boat, pilot launch, pilot tender, pilot cutter

marine

Usually small, fast and highly manoeuvrable craft used to deliver pilots from a harbour to vessels.

Pilot ladder

marine

A rope ladder provided for a pilot to embark and disembark safely. The pilot ladders shall be located in a place clear from any possible ship discharges.

Pilot mechanical hoist

marine

A pilot boarding hoist raised by a power winch. The mechanical pilot hoist should be designed to operate as a moving ladder, or as a platform, to lift and lower one person on the side of the ship.

Pilot operated relief valve

energy

Pilot operated relief valves (PORV) are used for emergency relief during overpressure events

Pilot shelter platforms

marine

Covered stands required by Regulations on Navigation in Panama Canal Waters onboard vessels with a breadth of 30.48m, and overall length of 274.4m or more.

Pilot valve

energy

A pilot valve is a small valve that controls a limited-flow control feed to a separate piloted valve.

Pilotage

marine

The activity carried out by a pilot assisting the master of a ship in navigation while entering or leaving a port.

Pinholes

marine

Tiny holes through the entire paint film down to the substrate formed during application and drying.

Pinpoint rusting

marine

Local rusting at pinholes or holidays.

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