A valve is a device that’s main purpose is to regulate the flow of a liquid or gas. While some valves are simpler than the others as they are intended to perform only the function of fully stopping or allowing the flow, there are other valves that are more complex and can also perform the function of slowing down the flow.

In the marine industry, the ship engines, power supplies and other elements deal with fuel, sea water and waste. The use of specially designed marine valves enable to keep the operations of them up and running effectively without encountering any hindrance.

At Dutco Tennant LLC, we offer a range of high-quality marine valves that are ideal for delivering specific outcomes. Keep reading till the end to learn about different types of marine valves available and know more about each of them.

Three Types of Marine Valves in a Ship

There are basically 3 main areas for which the suitable valves are used and these are –

1.     Sea Suction – the valves that are directly connected to sea water suction points present in a ship.

2.     Overboard – Here the valves work to discharge the wastes from the ship. The valves fitted here also come in contact with sea water.

3.     Intermediate – The valves are neither connected to the suction points now to the discharge area.

In these 3 main categories there are different types of valves available.

Gate Valves

It is the most common type of marine valve that is used in the majority of ships. These valves are intended to control the liquid flow through the pipes. They raise or lower similar to how a shutter gate works to perform the intended action.

Gate valves have a pretty simple design and function. But they do have a handful of variations such as rising stem design in which threads are mated with internal threads on the bonnets internal. Then there is non-rising stem design where the valve disc is internally threaded and connected with the stem.

Both the design variations serve varied purposes.

Globe Valves

It is a marine valve that is used in ships for regulating flow through a pipe with the help of a movable disk and stationary ring seat. It can also allow for reverse flow with an angle valve.

The Globe Valves also come in different design variations such as screw-lift or screw down and even non-return.

Butterfly Valves

This type of valve is used in ships that operate heavily with fuel, lube oil, freshwater or chilled water systems. Butterfly valves are generally lightweight.

It operates similarly as throttle and choke valves that are there in a car. The disk of the valve pivots to open and shut the valve as the shaft turns.

Relief Valves

The pump engines of ships often go through rigorous pressure and to relieve this pressure and protect the ship components the use of Relief Valves is essential. When the pressure rises, the spring present inside the valve’s inside opens to release the pressure.

Check out our Dutco Tennant LLC platform to explore a range of marine valves now.