Svanehøj develops high-pressure marine pump unit for LNG fuel

With strong demand for LNG-fueled vessels, the marine pump specialist Svanehøj is now offering a high-pressure pump solution for two-stroke engines.

A triplex type high pressure piston pump for LNG, with belt drive system, installed on a skid for easy transportation and installation.
A triplex type high pressure piston pump for LNG, with belt drive system, installed on a skid for easy transportation and installation.

The new compact HPP Triplex Unit has three combined cold ends designed for optimal flow and longer service intervals.

Svanehøj has designed the HPP Triplex Unit to meet the maritime industry's demands for leak-free critical components with a long service life. The cold end includes an innovative low-pressure sealing arrangement that reduces friction, ensuring longer service intervals. To further reduce maintenance costs, Svanehøj has developed a cartridge solution for swift sealing replacement. To ensure high efficiency and low-pressure drop, Svanehøj has also incorporated a new inlet valve design.

“It is evident that more integrators of fuel gas supply systems are taking on a progressively substantial role in designing fuel supply systems, especially for LNG-powered vessels,” says Johnny Houmann, CSO in Svanehøj. “Therefore, they increasingly require critical components specially designed to operate under extremely low temperatures and high pressures. Based on decades of experience in low-pressure fuel and cargo pumps for LNG, we made a strategic decision to extend our scope and include a larger part of the LNG fuel supply system by developing a high-pressure pump unit, exclusively designed for maritime purposes.”

The new HPP Triplex Unit is being pre-launched this week at Kormarine in Busan, Korea.

As part of its ESG strategy, Svanehøj is committed to directing 95% of its R&D investments at solutions and products that support the energy transition in the hard-to-abate sectors. This includes pumps and equipment for carbon capture, Power-to-X, and LNG. In recent years, Svanehøj has invested significantly in new products and services for the LNG segment, including a new submerged fuel pump, launched in 2022, and the acquisition of the US-based specialist in service and overhaul of LNG pumps, Complete Cryogenic Services (CCS), in 2023.

“In the ideal scenario, all ships would operate on carbon-free fuels tomorrow," says Søren Kringelholt Nielsen, CEO of Svanehøj. "However, it will take several years to establish an infrastructure to meet the need for liquid renewable energy. Transition fuels are essential for a successful energy transition, and natural gas is by far the best option – with significant environmental benefits. In Svanehøj, we are committed to continuously innovating our product portfolio designs and service models at the lowest possible environmental lifecycle cost.”