Merchant Marine

Alfa Laval has one of the most extensive product ranges in the field of marine boilers. Their company’s experience dates back to 1919 when the first marine boiler was developed at the Aalborg Shipyard in Denmark. Boilers on ships are used for provide steam for various processes such as pumping, heating, cooling, cleaning and hot water for accommodation.

From waste heat to added value

Recovering waste heat is a unique opportunity that benefits both your bottom line and the environment. That’s why using exhaust gas to generate steam is so attractive, as 50% of the fuel energy of a main engine goes into the heat flow.

Oil fired boilers & combi boilers

The Aalborg oil-fired boilers and combi boilers are highly efficient boilers designed for steam generation. They are designed for high efficiency, are user-friendly, self-cleaning and environmentally friendly to maintain.

The oil-fired boilers are equipped with an advanced touchscreen control system that enables convenient operation by the crew.

To be ready for the future, the modern boiler designs will be equipped with multi-fuel burners to to cope with the unpredictable future of upcoming fuels in all forms e.g LNG, methanol and ammonia.

Thermal Oil Heaters: Aalborg TFO & Aalborg EX

Alfa Laval Aalborg is the world market leader in the supply of thermal oil heating systems for ships. This product range includes the Aalborg TFO, an oil or gas-fired thermal oil heater. In addition to the development and production of the thermal fluid heater units, which we supply complete with burner and control system, Aalborg EX is a forced circulation vertical heater for heat recovery from exhaust gases.

This is just a small selection of Alfa Laval’s high-quality product range when it comes to boilers, economizers or heaters. You can find the entire product range, further information and technical details on the Alfa Laval website, or simply call Karberg & Schmitz.

Alfa Laval Smit Combustion is a saturated inert gas generator with low pressure, which produces inert gas by combusting fuel oil with air controlled combustion chamber.
Smit inert gas generators are typically found on chemical tankers and product tankers. The inert gas generators produces inert gas by combusting fuel oil with air.
Monitored by a specially designed oxygen analyzer and indirectly cooled by seawater, the combustion process is soot-free, thanks to a unique Ultramizing system (blue flame) that ensures complete combustion even in practical-load conditions.

How it works

Fuel oil and air are combusted in the generator to produce hot inert gas with an oxygen content of 2-4%. The combustion process is soot-free thanks to the unique Smit Ultramizing system, which ensures complete combustion even in partial-load conditions down to 25%.
In the scrubber section of the generator, the inert gas is directly cooled by a spray and cooling system, which at the same time washes out the sulphur oxides. The cooled inert gas then flows from the generator to the cargo tank through a deck water seal. This seal is a safety device that continuously prevents any backflow of gas from the cargo tank towards the inert gas system in the engine room. To prevent overpressure or vacuum in the cargo tank, a pressure/vacuum-breaker is installed.

Smit LNG

Alfa Laval Smit LNG/LPG is a dry inert gas generator with low pressure and low dew-point.

The most complex inert gas generators are installed on LNG carriers, where very dry inert gas is required and consist of four main components: generator, cooler, chiller and dryer unit.

The cooler, which has gas contact surfaces of SUS 316 for lifetime service, takes up minimal space due to the low-temperature output of the generator. Using water from the chiller, it stabilizes the heat radiation in all conditions.

The dryer unit is redundant and provides additional security. The entire installation is horizontal and allows easy maintenance, although maintenance is seldom required.

How it works

For gas- and chemical transportation the inert gas needs to be of high purity. For many applications, oxygen levels of 0.5% or even 0.1% are required, in combination with a water dew-point of about -45 °C and sometimes lower (-65 °C). Also here, the burner is the heart of the system as the inert gas needs to be absolutely soot free in the first place.
When the gas leaves the generator, it has the right composition, but it is saturated with 100% water and has to be dried.
The drying process takes place in two steps. In the first step of the refrigerant cooler, the gas temperature is lowered to 5 °C which results in condensation of a great quantity of water.
In the second stage the inert gas is dehumidified further in a double vessel type drying unit using activated alumina or adsorbent. The whole process operates under a pressure of about 0.3 bar(g).

API Marine sets the standard by bringing proven measurement technologies of the 21 century into use on tank installations within marine and industry. This provides customers with improved and new higher level of accuracy and efficiency in tank measurements.

UTS™ – Ultrasonic Tank Switch

Universal Level Switch UTS™ has extended operating temperature range from –200°C to +450°C and is designed for level detection in cargo holds, wells & service tanks.

Ultrasonic Tank Switch UTS™ is made of stainless steel and is used for level detection of liquids in vessel tanks, storage tanks, bilge water tanks, cofferdams as well as for control of water ingress to vessel’s compartments.

The operating principle of UTS™ is based on an acoustic wave technology, providing outstanding results in extreme operating temperatures. Accuracy of measurement is ensured regardless of shape of tank, type of liquid or liquid temperature.

UTS™ is installed outside the tank/pipe with only a metal rod inside the tank/pipe. Acoustic waves in the metal rod created by piezo-electric transducer ensure transmission of signals. When liquid in the tank reaches the probe on the rod, the emission of sound waves is muffled. This change is picked up by the piezoelectric transducer and a signal is transmitted to the corresponding alarm. Having only the metal rod inside the tank and no mechanical or moving parts means no maintenance is required.

TGD™ – Tank Gauging Device

TGD™ – Tank Gauging Device – a multifunctional deck sensor is designed for simultaneous measurement of level, temperature (up to 15 points), pressure and density (option) in cargo tanks.

Operation principle of TGD™ is based on the patented principle of Guided Low Frequency (GLF™) wave propagation, which allows equally precise measurements along tank height with any shape of tank and type of liquid.

UPT™ – Universal Pressure Transmitter

upt UPT™ – Universal Pressure Transmitter is used for measurement and detection of pressure in tanks and pipeline installations onboard or ashore, for level measurement (hydrostatic method) in service, ballast and slop tanks as well as for draught measurement.

Housing and membrane of UPT™ are made of stainless steel. 

Integrated Automation System

The Integrated Automation System (IAS) provides centralized remote automated control and monitoring, emergency alarm and status alarm of all pumps & valves of ballast and cargo systems, monitoring of loading, stability and floatability, engine appliances and major alarm systems.

VTI Fire Products Co Limited is a developer and manufacturer of products for fire extinguishing systems. Based in Shanghai, the company is a joint venture with VTI Fire Products in the UK, where all products are designed and manufactured in an ISO 9001 certified production facility.

The product portfolio covers comprehensive fire protection solutions, including

• Deck Monitors, fixed and moveable
• VTI-1230
• Sprinkler systems
• INERGEN(IG541)
• High Pressure CO2
• Water mist systems for local application
• Low and high expansion foam
• Water mist systems for complete flooding

Since 1974 Atlas Incinerators has been manufacturing incinerators for the marine and offshore market and in that time we have strived to build quite simply the best marine incinerator on the market.

This has led to numerous design improvements over the years. With over 9000 units delivered, mainly to the marine market, we can justifiably claim to be the No. 1 choice for ship owners.

The X10 Titan is our latest series of incinerators, named after the Titans of Greek mythology, known for their great achievements. The series builds on all the successful features that our Atlas series is known for in the market, and adds a number of upgrades based on the latest technology.

The benefits at a glance:

• Only one burner or one burner fits all = significant savings on spare parts compared to having multiple burners. Atlas has developed its own sludge burner without rotating parts.
• Atlas incinerators are designed for the simultaneous incineration of sludge, oil and solid waste.
• Induced draft air ejector for the evacuation of flue gases; hence no flue gas fan is required for the classic ATLAS series.

IT’S OFFICIAL: SLUDGE OIL HEATING IS HISTORY

The sludge oil is pumped directly from the sludge oil tank to the oil burner before combustion, without the need to heat the sludge oil first. In other words, there is no need to use steam, electricity or thermal oil to heat the system. You can see immediate savings in operating costs as heating is no longer required.

ACG is an Italian supplier of equipment for the marine industry. In 65 years of activity, ACG has installed more than 28.000 units of Anticorrosion (ICCP) and Antifouling (MGPS) Systems and is known as one of the most competitive and reliable manufacturers of electrochemical systems (ECOLCELL).

ECOLCELL – Electro chlorination

Antifouling treatment based on electro chlorination has proved to be the most efficient and the most economical solution.
ECOLCELL electro chlorination system combats macro fouling same as copper anodes and combats in addition micro fouling in the seawater lines on board of ships, oil-rigs and power plants.

Marine fouling, shellfish, seaweed, slime, bacteria, etc. find their way into sea water cooling systems on board usually as micro-organism, settles and grows and if not combated in-time go on to block pipes, filters, valves, intake grids, heat exchangers etc.

No Macro Fouling

No Micro Fouling

Clean Pipework

Energy Saving

COPRON – Antifouling

ACG also developed a traditionell antifouling system, COPRON, based on Copper & Aluminium Anodes mounted in the sea chest or sea water filter, to prevent marine fouling inside of the cooling sea water circulation.

How it works

As copper is a more noble metal than the material used in the pipe-work, the presence of copper ions in the seawater will cause galvanic corrosion of the pipes, but by fitting an aluminium (Al) or iron (Fe) anode in close proximity to the copper anode, one can achieve some corrosion control by creating an anti-corrosive layer on the internal surfaces of the piping.

No Micro Fouling

Return of investment

EU-Directive

MARIMPRESS – Impressed current cathodic protection (ICCP)

MARIMPRESS ICCP is used to protect ships‘ hulls, floating dry-docks, oil-rigs and other submerged steel structures from corrosion.

The system operates by continually measuring the potential of the submerged steel surface using hull-mounted Zinc reference electrodes. If this potential starts to rise above the preset value, the rectifier supplies the correct amount of DC current to hull-mounted activated Titanium anodes needed to maintain the preset value. In this way, not only the hull, but when technically earthed also the rudder, propeller, shaft and stabiliser fins are protected from corrosion.

Green Chemistry

No Corrosion

Economic

Long Lasting Anode

DMA Marine, a subsidiary of Dan Marine Group Ltd, since 2003 has been a leading system designer, manufacturer and supplier of marine heating, ventilation, air-conditioning & refrigeration systems as well as MGO chiller systems for more than 3,000 ship sets for the Chinese shipbuilding industry, which are used on ships by shipowners all over the world.

DMA was the predecessor of the OEM manufacturers of marine air conditioners founded in 1997 and has more than 20 years of experience in manufacturing high-quality equipment in this sector.

A team of about 100 employees consists of qualified equipment designers, experienced service and R&D engineers, a strong project management team and a highly qualified professor from Shanghai Maritime University who provides technical expertise and consultancy services for our HVAC products.

Air Handling Units

Water Cooled Condensing Unit

Cabin Unit

Packaged Air Condition Unit

centrifugal fan

Marien Axial Fan

Founded in 1932 by Paolo Garbarino, Garbarino maintains its “core business” in the marine, offshore and naval fields.

Instead of adopting mass production methods, Garbarino has chosen the technological search in sophisticated and demanding fields. The attention is focused on the constant improvement of the products designed according to the customer’s requirements and selecting the most suitable materials for the different applications.

Garbarino offers an excellent service to customers in terms of technical consultancy and after sales service ensuring the availability of engineers on site. Spares delivery and product replacement can be guaranteed in very short time thanks to the huge capacity of the warehouse, one of the best strength’s points of the company.

Horizontal pump

Use

Fresh and sea water, condensate, oils, chemical and petrochemical products.

Main Features

Pump: centrifugal type, end-suction single volute casing, single flow and axial inlet.pump

Impeller: high efficiency, close type, statically and dynamically balanced. Low axial thrust thanks to impeller provided with balancing holes.

Mounting system: shaft supported by radial and thrust type bearings placed in an oil bath bracket or, upon request, by self lubricated or grease lubricated ball bearings.

Seal: single mechanical seal to DIN 24960. Special mechanical seal or cartridge type for specific application or aggressive liquids. Possibility to install soft-packing with external flushing. 

Self-Priming

Small and medium size pumps can be equipped with built-in priming element; all sizes can be supplied in self-priming version with an additional air ejector.

Vertical Inline Pump

Use

Fresh and sea water, condensate, oils chemical and petrochemical products.

Main Features

Pump: centrifugal type with volute casing, vertical construction, single stage, single flow, in line flanges.

Impeller: high efficiency, close type, statically and dynamically balanced. Axial thrust balancing by means of annular chamber with balancing holes located behind the impeller.

Mounting system: shaft supported by radial and thrust ball bearings either grease or self-lubricated.

Seal: single mechanical seals to DIN 24960. Special mechanical seals or cartridge type, for specific application or aggressive liquids. Possibility to install soft packing with external flushing. 

Self-priming: some listed models can be supplied with a self-priming element either with liquid ring or with air ejector.

Recessed impeller torque flow pumps

Description

Thanks to the shape of the impeller and to its recessed position in the casing, MCA pumps are suitable for pumping viscous and pasty liquids containing suspended solids.

Main Features

Impeller: the impeller is of open type with radial blades. The impeller is provided with vanes to balance the axial thrust and the pressure in the stuffing box area.

Casing: volute type with ample section end suction and top discharge nozzles. The flanges are NP 10 according to UNI-EN-DIN-JIS- standards.

Shaft sealing: basic pump version is mechanically sealed but soft packing with optional external flushing with clean fluid can be fitted. In case of dangerous liquids pumps can be provided with double mechanical seals completed with barrier system. For high temperature the pump can be provided with a cooling chamber. The fitting of single or double acting mechanical seals flushed from external source by suitable media can also be possible.

Materials

Standard constructions are in cast iron, carbon steel, stainless steels. Any other material combinations can be supplied.

Side Chanel Pump

Design Feature

BT pumps are self-priming side channel multistage pumps. The impellers are star shaped, balanced to reduce axial thrust on the bearings. Bearings are external, life grease lubricated. The pumps have a very low NPSH value that allows operation with suction lift up to 8 meters. Basic design pumps are mechanically sealed. It is possible to fit double mechanical seals when handling hot liquids which may solidify, toxic, aggressive and corrosive media. In this case the seals are flushed from an external source with a fluid compatible with pumped medium at a slightly higher pressure.

Operating Pressures and Temperatures

Up to 120°C: 40 bar
Above to 120°C: 16 bar
Max operating temperature: with mechanical seal 160°C
Minimum operation temperature: -10°C

The international requirements for the operational reliability of ships and machines in the shipbuilding and marine sector as well as the general conditions and limitations regarding energy efficiency and the emission of pollutants are constantly increasing. Leistritz has already been meeting these rising requirements for decades.

Robustness and production quality as well as long service lives and availability are the attributes which have always been associated with Leistritz screw pumps on the market. In order to be able to guarantee and document a consistent product quality, each Leistritz screw pump is thoroughly tested under the specified operating conditions on our test stands. 

L3N screw pumps

Leistritz screw pumps in the L3N range are three-spindle, single-volute, self-priming displacement pumps for the low-pressure range. They are used to transport non-abrasive lubricating fluids.

Cargo application

A wide variety of specialized vessels are generally used for the transportation of liquid freight on inland and shipping routes. In order to be able to safely load and unload the freight, these ships must be adapted for the specific storage and transport features. The same applies for the pumps which are used here. They have to ensure reliable and safe operation for a wide range of viscosities, temperatures and other operating conditions and influences. Here, Leistritz screw pumps offer optimal volume stability, robustness and operational reliability for almost all liquid freight goods and products.

L4 screw pumps

Leistritz screw pumps in the L4 range are twin-screw, double-volute, self-priming positive displacement pumps. They are used to pump aggressive / non-aggressive, abrasive / non-abrasive low to high-viscosity fluids with lubrication / non-lubrication properties. The spindles are manufactured in one piece which leads to low rotor deflection and non-contacting design. The special spindle geometry minimizes pulsation and optimizes the NPSH value.
The arrow-toothed gears helps to reduced the noise level. The advantages of the replaceable insert is easy to see in the low-maintenance.

NEMO® Progressing Cavity Pumps have a very broad application range and are used in all branches of industry for the continuous, pressure-stable, gentle and low-pulsation conveyance of almost any substance.
Whether for sludge, chemical substances, adhesives, petroleum or yogurt, one of the pump types by NETZSCH in various rotor/stator geometries and a selection of engineered joints make sure to suit your application.

The pumps are at home where a great variety of different substances must be pumped or very precisely dosed. From low viscosity media to products barely capable of flowing, with or without solid content, shear-sensitive, sticky or abrasive.

For already more than 50 years, Pres-Vac Engineering has been a renowned brand in the marine industry. We have installed over 200,000 valves and are the largest supplier of high velocity pressure/vacuum valves and venting systems for the transportation of volatile organic compounds (VOC).

Thanks to our experience, we can always offer the best solution for your specific tank venting requirements. Our solutions are innovative, reliable, extensively tested, tailored to your specific needs and always comply with all standards and regulations. We offer you unrivaled experience, advanced research and engineering capabilities, worldwide service and support, and a global network of representatives, agents and partners.

PV-ECO & PV-VOC

The PV-ECO and PV-VOC have been designed based on the experience gained by Pres-Vac over the last 60 years. They have been designed using the latest technologies, but most importantly the PV-ECO and PV-VOC have been designed based on customer feedback.

PV-ECO: The Chemical Tanker P/V Valve

The PV-ECO is designed for use on chemical carriers and product carriers. It has been approved for long pipes, which increases flexibility in the design of pipelines for the shipyard. Compared to the previous generation, we have simplified maintenance by reducing disassembly time by 60% through a reduced number of parts.

PV-VOC: The Crude Oil Tanker P/V Valve

The PV-VOC has been developed to meet the requirements that larger crude oil carriers have for P/V valves. The PV-VOC is designed to reduce the amount of cargo vapor by implementing a special 2-step opening sequence.

PV-Methanol: The P/V valve for methanol bunker tanks

Pres-Vac is the first supplier of PV valves to help ship owners overcome the challenge of handling methanol in their own bunker tanks. The methanol tank system typically consists of storage tanks, service tanks and drain tanks and is usually installed at the bottom of the engine room.  Long vent lines dealing with positive and negative pressure must be able to protect and breathe at the same time. Special PV valves developed by Pres-Vac are one solution.

Air caps and Air Release / Vacuum Breaker Valves

Air caps and air release/vacuum breaker valves serve two purposes: they vent the tank and prevent water from entering the tank. Air caps are installed on the air lines of the service tank. A wire mesh prevents flames from entering the tank. Pres-Vac offers the following air caps and vent/vacuum breaker valves.

Liquid Overfill Protection Devices

Liquid overfill protection devices are designed to prevent tanks from becoming pressurized due to overfilling, which can occur if the high-level alarm float is punctured. Failure to use an overfill protection device can cause the tank to burst and lead to massive contamination.

Onboard Test Rig

On-board test rigs are used to verify the set pressure after maintenance as well as to check for and measure leakage.

With an intertgas nitrogen generator solution from OXYMAT you have nitrogen when and where you need it.

OXYMAT is a pioneer in designing and manufacturing on-site oxygen and nitrogen generators, using pressure swing adsorption (PSA) technology since 1978. With our track record comes first hand knowledge of the market, development, demands and the possibilities the PSA technology holds. Recently we have broadend our portfolio to include flexible N2 generators based on membrane technology.

Here to guide you

While the sales and service activities are coordinated from Denmark (HQ), the production team in Slovakia will assemble and fully test (FAT) the units in their own quality production facilities.

THE RIGHT CHOICE OF SYSTEM

Flexible membrane solutions | perfect for retrofit

• Space optimized Fits into ana space
• World’s smallest footprint @ 635 m3/h Nitrogen production on the fly
• Optimized controls
• Minimum maintainance

Industry standard PSA – TWIN TOWER | low TCO

• High N2 purity higher than 99.9% (ppm level) 2-column system
• Control panel and 7” screen
• Purity monitoring and alarm settings as standard Advanced control system as costomized solution