Defence & Naval

The principal reasons for ships, warships, submarines, and auxiliary vessels loss at sea sadly remains sinking and fire. Over the years we have been fortunate to have been guided by Royal Navy Marine Engineers and are grateful for their extraordinary and gentle encouragement to us over many years. In 3 specific areas we are global leaders, 1.Watertight Integrity Monitoring 2.Contents Monitoring of Liquified Gaseous Extinguishing Systems 3.Contents Monitoring of Non-Liquefied Gaseous Extinguishing Systems.

The Portapipe® is a portable and battery powered liquid level indicator designed to non-invasively, accurately, and reliably measure the level of liquid within a pipe. The Portapipe® can be applied to both vertical and horizontal pipes from 25mm to 330mm in diameter to provide a precise result within ±1% of true level.

P/N: 3174740-PIPE


Portagas® is a world’s first technology for non-invasive, non-destructive monitoring of pressurised, inert gas systems.

It is a unique and innovative solution designed to monitor the pressure of pressurized, non-liquefied inert gases and compressed gas cylinders, including Inergen®, Nitrogen, Oxygen, Propane, Methane, Chlorine, Ammonia, Hydrogen, and CO2.

Utilizing sophisticated signal processing and acoustic technology to detect even minor fluctuations in internal cylinder pressure, with precision below the 5% required by regulations and by detecting marginal changes in the internal cylinder pressure with precision well below 5% demanded by the regulations, making it a valuable tool for ensuring safety and compliance.

P/N: 3107505-GAS

The Permaflow® is a fixed, clamp-on, ultrasonic transit time flow and heat meter that is non-invasive for measuring the flow rates of liquids containing less than 10% of gas/solid contents. It is mains powered, designed for 24/7 monitoring and is accurate to +/- 0.5% of measured value under ideal conditions.

P/N: 3578010-FLOW

Portasonic® PLUS is a portable ultrasonic transit-time flow meter designed to measure, internally record, and export the flow rate within a pipe with precision and ease. Portasonic® PLUS uses a customisable pre-programmed database to allow it to work with a wide variety of pipe materials and liquid types as a highly versatile monitoring solution that can be adapted for specific applications.

P/N: 2618949-PSOPLUS


Portable instrument for assessing watertightness, locating and quantifying water leaks, and predicting water flow rates. 

The Portascanner® WATERTIGHT PRO is a unique ultrasonic technology from Coltraco Ultrasonics capable of identifying the exact location of any leak site within a structure, measuring the physical size of the leak, calculating the rate of water flow through it, and providing the ability to record and report observations.

P/N: 509004-PRO
NSN: 6625-99-257-8336
IMPA MSG P/N: 652778


Portascanner® WATERTIGHT PLUS is a handheld watertight integrity tester for inspecting the watertightness and weathertightness of hatch covers, watertight doors and multi cable transit seals in marine environments. It is a portable, handheld solution which can be used by a single operator to test a large number of different hatches and seals in one quick and easy inspection.

P/N: 509004-WTPLUS
NSN: 6625-99-257-8336
IMPA MSG P/N: 652778


The PORTATANK® is a non-invasive portable ultrasonic tank liquid level indicator capable of detecting liquid levels in a huge range of applications on virtually all liquid types from small 0.5m tanks such as oil levels in Transformers and Ring Main Units (RMU) all the way up to 15m diameter industrial tanks. Safely test externally from the side walls of the tank with no downtime to your system. Portable, durable and hand-held, the Portatank® offers greater flexibility when testing a range of applications, operated by one person with no installation cost.

P/N: 3141184-TANK

The Portalevel® INTRINSICALLY SAFE is an ultrasonic liquid level indicator approved for Zone 1 ATEX hazardous or explosive environments.

P/N: 2290334-IS

The Portasteele® CALCULATOR is the perfect partner to any of Coltraco Ultrasonics’ liquid level detectors. It allows you to convert your measured liquid level to an agent weight, precisely and accurately. These readings can then be saved and exported for future reference and traceability. 

Used in partnership with the Portalevel® Ultrasonic Level Indicator range 

P/N: CALC-007

Portalevel® MAX MARINE PLUS is a highly capable, handheld liquid level indicator with ABS Type Approval for marine applications in level monitoring. Portalevel® MAX MARINE PLUS is fast, accurate, and reliable; with a survivable construction and cutting-edge ultrasonic capabilities, it allows an operator to non-invasively monitor the liquid level of almost any CO2, Halon, or Clean Agent fire suppression system at sea.

P/N: 2290334-COMXPSM
NSN: 6680-99-192-2735
IMPA MSG P/N: 652776


Watertight Integrity Monitoring

We have developed the Portascanner® WATERTIGHT PRO. The Portascanner® WATERTIGHT PRO is an ultrasonic instrument used for the location and quantification of leak-sites in watertight compartment Multiple Cable Transit Areas and Watertight Compartment Doors at sea, but more importantly and uniquely, we have designed the instrument with the capability to calculate the water flow rate through them in the event of compartment flooding, to enhance and advance Damage Control and Safety & Survivability in warships and submarines. We developed this with the purpose of contributing to the internal “damage control battle” of Naval warships to save the ship at the damage moment.

The key advantages of the Portascanner® Watertight PRO are:


  • Identification and location of the leak-site, accurate quantification of its size, the extent of each leak in terms of leak surface area,
  • As well as the predicted water ingress and flow rate through the leak-site
  • A built-in 8-megapixel camera to photograph structures and record the location of each leak for future reference
  • The ability to automatically generate and export reports, filtered to a user’s choice of date, site, room, and structure
  • A variable output power of generator and improved stability of the generated signal, to allow detection and quantification of leaks no matter the size of the structure or compartment
  • The receiving unit is contained within an ergonomic, tablet-based format


It is designed to be used to identify, measure, and remedy potential leak-sites in and around the personnel-carrying vehicle compartment, crew compartments, and the engine compartment. This platform can measure the leak area during inspection and calculate the total flow rates of water which would ingress under different water pressures and sea states. This allows a unique ability to quantify the risk to specific areas in a structure.


  1. Contents Monitoring of Liquified Gaseous Extinguishing Systems


These are liable to slow seepage or accidental discharge; if the contents do not exist, the design concentration cannot be developed to extinguish a ship or submarine fire and challenging to test at sea where they are most-necessary. Liquified Fixed Gaseous Extinguishing Systems, such as Halon, CO2, FM-200™ & NOVEC™ 1230, are gases stored at very high pressures, making them liable to slow seepage and accidental discharge; if the contents fall below their ability to deliver the design concentration required, the remaining extinguishing gas will not extinguish the fire event. IMO SOLAS II/21.3 state that the crew must have the means to, “periodically test the watertight doors and all mechanisms at least once a week”. IMO SOLAS Fire Suppressions Safety Code state that the “crew must have the means to test the contents” its fixed extinguishing systems at sea, for this. This is the reason why we designed the Portalevel® MAX MARINE PLUS hand-held instrument, enabling the crew to test for the contents of liquefied CO2, FM-200™ and NOVEC™ 1230 Clean Agent extinguishing systems to an accuracy of +/-1.5mm, contained within the highly pressurised gases contained within their large cylinders.

The key advantages of Portalevel® MAX PLUS include:

  • Having a quick and easy to use crew-use liquid level indicator as a highly accurate 1/8” accurate and efficient way of delivering better fire safety onboard and protecting the fleet.
  • NATO Stock and IMPA Purchasing Nos, ABS Type-Approved and manufactured to UL certification.
  • A new user interface so that Naval Marine Engineers can “see” the gas/liquid interface


  1. Contents Monitoring of Non-Liquefied Gaseous Extinguishing Systems


For 4 years we have been designing the means for a Naval Crew to monitor the contents of their Non-liquefied fixed fire Gaseous Extinguishing Systems containing the non-liquefied gas, Inergen™ and which sometimes replaces the liquefied gaseous extinguishants such as Halon or NOVEC™ 1230. Inergen™ is typically stored in 45KG/100lb cylinders at pressures between of up to 300 Bar. At such pressures they are also subject to slow seepage of contents or occasionally accidental discharge. If the gas is insufficient at sea to develop the design concentration required, the fire event will not be extinguished. The land-based fire industry who install the systems leave the maritime user dependent on the dockside maintenance and pressure gauges to monitor pressure, but this does not enable the warship or submarine to monitor the contents at sea. Our instrument allows Navies to monitor both at sea, so that the integrity of the Inergen™ system can be maintained by the crew who depend on it.


The key advantages of Portagas® are:


  • Intelligent and automatic determination whether an observed change in pressure is due to changing temperatures or a loss of contents
  • Effortlessly tracking maintenance by saving and reporting records straight from the instrument.
  • Detects even minor changes in the internal pressure, with precision comfortably exceeding the 5-10% agent and pressure loss thresholds cited in regulations such as NFPA 2001 and ISO 14520
  • Portagas® analyses the resonance of the cylinder quantitively, through a combination of sophisticated signal processing and data

Customer Reference List:

  • US Department of Defence
  • Royal Airforce
  • Royal Navy
  • US Navy
  • US Coastguard
  • Indian Navy
  • Hong Kong Fire Service
  • Canadian Navy
  • Spanish Navy
  • Royal Malaysian Navy
  • Irish Navy
  • Israeli Navy