In the case where the fluid is at rest, called fluid statics or hydrostatics (from hydro meaning "water" and static meaning "at rest"), the force acting on the object is the sheer weight of the fluid above, up to the water's surface — such as from a water tower.

The resulting hydrostatic pressure (static pressure) is isotropic: the pressure acts in all directions equally, according to Pascal's law.

Our pressure transmitters work according to the hydrostatic measuring principle, which functions independently of the dielectric properties of the product and is not influenced by foam generation. The sensor element of this, the dry ceramic-capacitive CERTECO measuring cell, Stainless Steel, Titanium etc. Base element and diaphragm consist of high purity sapphire-ceramic.

The hydrostatic pressure of the product causes minute diaphragm capacitance change in the measuring cell. This capacitance change is converted into an appropriate output signal. On-board vessel, it is well suited for Ballast tanks whereby submersion in seawater do not affect the long term accuracy of the transmitter.

Monitoring the pipeline pressures at the manifold ensures the safety of on-board and dock equipment, and provides the basis for pump control.

If pump output is too high or if valves remain closed during charging and discharging processes, gauge or low pressure in the product pipelines can result. This can cause severe structural damage to the manifold or the storage tanks.

On-site pressure indication provides additional security for processes involving the manifold. Choosing an appropriate pressure instrument becomes therefore crucial for this particular application whereby location indication is just as important as remote readout.

The most important measurements on board are the measuring points for calculating draught, trim and list. Ship safety depends heavily on them.

Using the transmitted values from the different measuring points, the load master, as part of the cargo control system (CCS), can determine the exact values of ship orientation and draught.

Usually, two measuring points forepeak and two additional measuring points afterpeak are used. Instruments with appropriate protection of IP68 will have to be used for this application.

To ensure fuel feed to the main engine, the separated heavy fuel oil (HFO) is first pumped into the settling tank (buffer tank). The connected service tank (day tank) is filled via continuous overflow from the settling tank and is connected directly with the main engine.

Choosing the correct apparatus that can withstand the high temperature and sludge environment is therefore very important for the long-term life of the apparatus.

MOWE Recommendation: We highly recommend an instrumentation setup which has minimum contact to the extreme heat and heavy oil, such as a specialized Guided Radar Instrument.

Every motorised ship has a so-called bilge well, i.e. a space between the floor of the engine room and the bottom of the ship. A water/oil mixture collects in this space at the lowest point of the vessel.

The collected mixture is then processed and separated into clean water and oil components by an on-board skimmer and demulsifying unit. After passing through various cleaning processes, the pure water can be safely pumped out.

MOWE Engineering Standard: Mowe recommends a highly reliable level switch system for this heavy application to minimize the frequency of changing or maintaining this instrument over extended operational periods.

Fresh water is an essential commodity on a ship and is stored strictly within separate, dedicated holding tanks.

Depending on the specific class, type, and size of the ship, different volumes of fresh water are demanded for drinking consumption, personal hygiene, and general cleaning maintenance. The typical volume capacity stored in the tanks can scale from 50 to 400 tons, depending heavily on whether the vessel operates an integrated desalination plant.