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Vanzetti Engineering's new submersible centrifugal pump is used for LNG applications in the marine sector

Vanzetti Engineering, headquartered in Italy, is an expert in liquefied natural gas (LNG) cryogenic equipment. Since 2006, it has been committed to researching liquid methane for marine applications, especially low-pressure LNG marine applications; in recent years, the company has also been exposed to high-pressure LNG Marine applications.

Recently, Vanzetti Engineering launched a new VT-3 reciprocating pump, which is designed and manufactured in compliance with marine standards. The VT-3 pump can be used as a high-pressure pump to supply air to the MAN two-stroke ME-GI engine. It is available in Triplex configurations with flow rates up to 14 m3/h and pressures up to 350 bar.

The VT-3 pump can also be mounted on a skid (also certified for marine applications) and provides a series of accessories including sensors, gauges and valves to achieve safe and reliable pump control.

Vanzetti Engineering also provides Artika series submersible centrifugal pumps, whose models can be certified by the required classification society. Depending on size (proportional to flow rate) and number of stages (proportional to pressure), these pumps can be used as:

Artika series pumps can be installed at the bottom of an LNG storage tank or in a vacuum cryostat at the bottom of the storage tank. In both cases, these pumps are equipped with bearings that are continuously lubricated with LNG and have no gaskets, which can maintain low temperature conditions to achieve fast and efficient start-stop operation and low maintenance.

Artika pumps are available in one or multi-stage configurations (2, 3, 4 or 6) and have spiral deflectors to minimize the required net positive suction head (NPSH) and work with inverters or variable frequency drives The integrated motor used. According to Vanzetti Engineering, the noise emissions of these pumps are less than 80 dB(A).

Artika submersible pumps can supply LNG at different flow rates and pressure rates. For example, the larger Artika 300-2S can reach flow rates of up to 300 cubic meters per hour and a pressure difference of up to 12 bar.

The pump series-Artika and VT-3-can be applied to various LNG-fueled ships and have collected many interesting reference materials: for example, Vanzetti Engineering is the only supplier of all cryogenic pumps for cruise ships powered by Carnival Corporation. Natural gas engine.

The company also provides gas system pumps for the Royal Doeksen LNG catamaran ferry, which requires extremely low flow levels. According to Vanzetti Engineering, in these applications, the Artika 120-3S model ensures reliable and stable flow and pressure under all operating conditions.

Container ships such as Wes Amelie (modified ship) or Nordic Hamburg (new build) represent some of the many low-flow applications of Artika pumps: in the first case for four-stroke engines, in the second case for two-stroke Engine stroke WinGD X-DF engine.

Vanzetti Engineering also reported that the first trans-Atlantic post-Panamax LNG vehicle carrier built, owned and operated by Siem Car Carriers will be equipped with MAN two-stroke ME-GI engines and Vanzetti Engineering's VT-3 pumps. According to engine consumption requirements, Vanzetti engineers can customize VT-3 pumps in simplex, duplex or triplex configurations.