Total Marine Engineering Service Provider

In response to the industry trend of integrating onboard instrumentation with a streamlined approach to system gauging, JOWA USA provides a family of Metritape tank level gauging systems including: Sentry IV.

Utilizing our Metritape technology, the systems are cost-effective, reliable, low-maintenance and stable. All systems offer computer-based centralized control and monitoring. Independent high alarm can be achieved by installing two resistance-tape sensors in a single deck penetration. These systems can also include temperature detection and IG/tank.

In response to the industry trend of integrating onboard instrumentation with a streamlined approach to system gauging, JOWA USA provides a family of Metritape tank level gauging systems including: Metricircuit 60,000.

Utilizing our Metritape technology, the systems are cost-effective, reliable, low-maintenance and stable. All systems offer computer-based centralized control and monitoring. Independent high alarm can be achieved by installing two resistance-tape sensors in a single deck penetration. These systems can also include temperature detection and IG/tank.

In response to the industry trend of integrating onboard instrumentation with a streamlined approach to system gauging, JOWA USA provides a family of Metritape tank level gauging systems including: Metrimeter.

Utilizing our Metritape technology, the systems are cost-effective, reliable, low-maintenance and stable. All systems offer computer-based centralized control and monitoring. Independent high alarm can be achieved by installing two resistance-tape sensors in a single deck penetration. These systems can also include temperature detection and IG/tank.

In response to the industry trend of integrating onboard instrumentation with a streamlined approach to system gauging, JOWA USA provides a family of Metritape tank level gauging systems including: DeckMaster IV.

Utilizing our Metritape technology, the systems are cost-effective, reliable, low-maintenance and stable. All systems offer computer-based centralized control and monitoring. Independent high alarm can be achieved by installing two resistance-tape sensors in a single deck penetration. These systems can also include temperature detection and IG/tank.

In response to the industry trend of integrating onboard instrumentation with a streamlined approach to system gauging, JOWA USA provides a family of Metritape tank level gauging systems including: Metriguard Tank Monitor.

Utilizing our Metritape technology, the systems are cost-effective, reliable, low-maintenance and stable. All systems offer computer-based centralized control and monitoring. Independent high alarm can be achieved by installing two resistance-tape sensors in a single deck penetration. These systems can also include temperature detection and IG/tank.

JOWA USA's MetriGuard Water Ingress Alarm System is intended for usage on bulk carriers. It complies with the proposed SOLAS regulations (Chapter XII, Regulation 12) requiring water level alarms in cargo holds and certain other spaces.

The major elements of the MetriGuard Water Ingress Alarm System are: 1. Metritape resistance-tape sensor and sensor housing; 2. Float switch and junction box; 3. Signal Conditioning Unit with intrinsic safety barriers; 4. Alarm unit.

JOWA USA's line of quality pressure transmitters includes the PT-30, PT-300, and PT-700 Series submersible transmitters and the PT-5000 and PT-5000S Series submersible/external pressure transmitters. These rugged pressure cells are suitable in a wide range of level gauging applications from seawater to jet fuel. JOWA USA's pressure transmitters are made from the finest materials available incorporating advancements in aerospace engineering. All models are available in both absolute and gauge versions to suit your specific needs.

JOWA USA's line of quality pressure transmitters includes the PT-30, PT-300, and PT-700 Series submersible transmitters and the PT-5000 and PT-5000S Series submersible/external pressure transmitters. These rugged pressure cells are suitable in a wide range of level gauging applications from seawater to jet fuel. JOWA USA's pressure transmitters are made from the finest materials available incorporating advancements in aerospace engineering. All models are available in both absolute and gauge versions to suit your specific needs.

JOWA USA's line of quality pressure transmitters includes the PT-30, PT-300, and PT-700 Series submersible transmitters and the PT-5000 and PT-5000S Series submersible/external pressure transmitters. These rugged pressure cells are suitable in a wide range of level gauging applications from seawater to jet fuel. JOWA USA's pressure transmitters are made from the finest materials available incorporating advancements in aerospace engineering. All models are available in both absolute and gauge versions to suit your specific needs.

JOWA USA's line of quality pressure transmitters includes the PT-30, PT-300, and PT-700 Series submersible transmitters and the PT-5000 and PT-5000S Series submersible/external pressure transmitters. These rugged pressure cells are suitable in a wide range of level gauging applications from seawater to jet fuel. JOWA USA's pressure transmitters are made from the finest materials available incorporating advancements in aerospace engineering. All models are available in both absolute and gauge versions to suit your specific needs.

JOWA USA's line of quality pressure transmitters includes the PT-30, PT-300, and PT-700 Series submersible transmitters and the PT-5000 and PT-5000S Series submersible/external pressure transmitters. These rugged pressure cells are suitable in a wide range of level gauging applications from seawater to jet fuel. JOWA USA's pressure transmitters are made from the finest materials available incorporating advancements in aerospace engineering. All models are available in both absolute and gauge versions to suit your specific needs.

There are two alarms out signals which are triggered by the ppm oil content of the separators effluent. Adjustable between 0-15 ppm. Auto flush occurs automatically, a cleaning function designed to keep the sensor as clean as possible. The log is controlled by a signal from the separator and is saved on a removable SD card.

The unit separates up to 80% of the water in the emulsion. The treated water is then fed to an MEPC 107(49) approved bilge water separator. The residue is pumped to the concentrated sludge tank. The system is operating automatically, in a step-by-step program (PLC controlled). The working principle is flocculation. When the system starts it firstly makes an oil release in the gravity tank of the 3SEP, then it starts to fill up the settling tank with emulsified water, the emulsion breaking chemical is added, and mixed with the emulsified water and at the same time pH-adjusted. To end the first step, the oil from last batch is discharged to the sludge tank. During settling time the chemicals will break the emulsion, and create 3 different layers. (settling time is adjustable).

The requirements of the MARPOL Convention are that all oil tankers with a gross tonnage of 150 GRT and above must have an oil discharge monitoring and control system installed, incorporating an approved oil content meter, with a starting interlock and an automatic overboard valve control system.

JOWA RO Water Maker - Reverse Osmosis system 3,2T-5,5T SEA

Reverse osmosis desalination is among the finest levels of filtration available. The RO membrane generally acts as a barrier to all dissolved salts and inorganic molecules. Water molecules, on the other hand, pass freely through the membrane creating a purified product stream. Rejection of dissolved salts is typically 98% depending on factors such as membrane type, feed composition, temperature, and system design. Capacity is 3,2T or 5,5T potable water per day. Continuously monitoring and automatically divert the product flow depending on salinity value. Full production with a temperature between 6-35C° and TDS 35.000ppm (salinity).

JOWA RO Water Maker -Reverse Osmosis Split system 3,2T-5,5T SEA

JOWA RO Reverse Osmosis Fresh Water Maker produces excellent potable water using Reverse Osmosis technology. Reverse Osmosis desalination is among the finest levels of filtration available. The RO membrane generally acts as a barrier to all dissolved salts and inorganic molecules. Water molecules, on the other hand, pass freely through the membrane creating a purified product stream. Rejection of dissolved salts is typically 98% depending on factors such as membrane type, feed composition, temperature and system design. JOWA RO 3,2-5,5T Sea is a split version of for easy installation in small vessels and designed for tough marine evironment. Easy access for maintenance and ergonomic operational design. Capacity is 3,2 tonnes or 5,5 tonnes potable water per day. Continuous monitoring and automatic rejection of the product flow depending on salinity value. Full production with a seawater temperature between 13-35C° and a TDS of 35.000ppm (salinity).

Jowa - FWU - Fresh Water Unit

JOWA Fresh Water Units are specially designed for the offshore and marine market. They consist of all necessary equipment for fresh and hot water supply, such as: Calorifiers, Hydrophores, Filters for various applications, Pumps for pressurizing and hot water circulation, UV-sterilizer, silver ion sterilizer or chlorination, and Control cabinet.

Fresh Water Filter

JOWA F/2: Rehardening/pH-adjusting filter for potable water systems equipped with fresh water maker. JOWA F/R: Sand filter to remove solid particles in most water systems. JOWA F/L: Dechlorination/activated carbon filter for improvement of taste and smell in fresh water system. MATERIAL: 1. The filter tank is made of stainless steel (316L); 2. Pipes are chrome-plated copper; 3. Valves are chrome-plated brass.

JOWA - UV Steriliser

JOWA UV is equipped with low pressure UV-lamps, powered by electronic high frequency ballasts, for highest efficiency and lowest power consumption. The sterilization process is microprocessor-controlled via data from the UV-sensor. The intelligent lamp monitoring system will, in case of any lamp failure, inform the user of this occurrence as well as the location of the broken lamp. The hour meter tells the user to change lamps when 80% lamp Life-time is is reached. All necessary data is available in a display window on the control cabinet.

JOWA- Ag-S - Silver Ion Steriliser

Disinfecting drinking water with silver is a very old method and has been adopted frequently in many parts of the world. As a matter of fact, this method goes back to antiquity. Disinfection of water by dosing silver ions into water is completely harmless to human as well as animals. The amount of silver ions in the disinfected water is well below the maximum amount stated e.g. in the directives issued by the WHO. Silver ions do not change the taste, smell or colour of the water. Nor do they effect the physical and chemical properties of the water. The silver ions only kill off bacteria, germs, algae etc.

JOWA - Hydrophore & Calorifier

JOWA produces a wide variety of hydrophore or pressure boosting units for ship and offshore use. Pressure vessels, circulation pumps and other equipment can be provided separately or as complete, ready-mounted units with pump, control cabinet piping and valves. JOWA Calorifiers are among the most efficient and durable on the market, with customers throughout Europe and Asia. The equipment can be adopted to suit different. A variety of standard sizes from 100L to 3000L are available. Our products come ready-connected with control cabinet, heating elements and thermostats. Alternative heating sources and circulation or pressure boosting pumps can also be provided.

JOWA - Dosing & Chlorination Unit

The unit consists of a dosing pump, a control cabinet, an injection valve and a container for the chemical. The container is equipped with a low-level alarm which stops the pump in case chemical runs out, a suction valve and a manual agitator. All components are mounted on a stable steel frame for easy installation. The most common application is that the dosing unit is being used to chlorinate fresh water, chlorinate evaporated water or bunker water, on its way to fresh water holding tank, and to re-chlorinate water before it is distributed. The prechlorination systems are normally controlled by flow meters in bunker water flow line.

JOWA - WWS - Window Washing System

The system supplies the wheelhouse with pressurised tempered water including cleaning detergent and rinsing fluid. The system is specially designed to suit the number of spraying nozzles, which is dependent on the size and design of the wheelhouses and yards, or owners request. The difference is that more nozzles per section need a higher pump capacity. After use the water is removed from the pipe system by adding pressurised air. The system is equipped with a PLC for fully automatic operation of the system controlled from the wheelhouse e.g. start or stop working on the chosen section.