Reduce your energy costs with our Ultra Low Leakage Temperature Regulating Valve

According to IMO, a series of regulations targeting vessel efficiency and carbon intensity will likely enter into force by 2023. As such, it has become the top two priorities for most shipowners to improve energy efficiency and reduce emissions.

Both requirements can be met by replacing the 3-way temperature regulating valve for the main engine with valves from BROEN Clorius Controls with a lower leakage over the High Temperature Fresh Water cooler which will save fuel used to reheat the water.

Current Three-Way Temperature Regulating Valves for Engine Heating have high leakage rates

When the ship is at port or at anchor (idle mode), the main engine is shut down, but kept heated, ready for operation. Most 3-way temperature regulating valve in the fresh water cooling system leak about 1%-2% resulting in a heat loss to the sea cooler. The heat loss in port must be replaced by the boiler which increases fuel consumption on the boiler.


How does using a low leakage Temperature Regulating Valve improve the energy savings?

By replacing the 3-way temperature regulating valve with Clorius low leakage valve, it is possible to reduce the leak over the high temperature fresh water cooler and thereby save fuel used to reheat the water. The leak today is set to 1% while Clorius offers a low leakage temperature regulating valve with a reduction to 0.01%. It can be rated as an ANSI Class IV Shutoff.


Plug and Play without pipe modifications

Clorius 3-way Temperature Regulating Valve is the smallest valve in the market. It is designed to be able to replace any existing valve with the use of spacers due to its small footprint. Replacement of existing valves does not require docking or any special competencies.


What kind of energy savings are we talking?

In a report called the Retrofit Project published by Green Ship of the Future, there is a detailed study done on 3 ships.

In one of the ships, it was running on MDO 0.1%S @638$/ton and a temperature of 55°C going into the engine. The cooler is cooling the leakage down to 36°C. It is estimated to use 140g/eKWh on the boiler. The flow of HTFW is set to 93 m3/h.

The cost savings are shown in the table below:


Based on the data, after being retrofitted with the low leakage Temperature Regulating Valves, the ship recovered the initial cost within a year. After that, she continues to enjoy energy savings in fuel and also less taxes with the reduced emission.

Calculate your savings

Below you can download a tool that will help you calculate your return on investment (ROI) when replacing your current temperature regulating valves with low internal leakage control valves from Clorius Controls.

Based on data from your vessel we also calculate savings like energy loss, cost savings and fuel savings.