Cleaning Tanks

EPIS is a premier industrial services provider based in Egypt. Working in partnership with MS Industrial Services, an international oil service provider based in the UK, EPIS has recently further expanded its service portfolio and equipment range. Services include:

  • Tank Cleaning (FPSO, Rigs, Pits, etc.)
  •  High Pressure Water Jetting
  •  Ultra-High Pressure Water Blasting
  •  Sand Blasting
  •  Retro Jetting (pipe and heat exchanger tube cleaning)
  •  Chemical Cleaning
  •  Paint and Scale Removal
  •  Rescue emergency Response Teams
  •  Produced Water Treatment
  •  Scaffolding Equipment and Personnel


High (HP) pressure and Ultra High (UHP) water jetting are the most powerful and environmentally sensitive cleaning techniques available to industry.

Wholly Owned and Operated Water Jetting Inventory

Covering a broad scope of hydro-blasting services, EPIS own and operate an extensive fleet of Jetting Units and compatible specialist accessories capable of various flows operating to pressures of 2,750 bar (40,000 psi) to give a complete and custom service to our clients.
Powered by either a diesel engine or electric motor, our units can be supplied in either HP or UHP mode by changing the pump build of the unit providing dual-capability if required.

When used in conjunction with specialist tooling and accessories, water jetting can be the most effective solution when applied to a diverse range of applications including for example, surface preparation, tank and vessel cleaning.

Zone 1 and Zone 2 Certified Options

We offer both offshore containerized and onshore trailer mounted options which are designed to ATEX and NORSOK standards and certified to operate in Zone 1 and Zone 2 hazardous areas. The combination of our highly trained operatives using this specialist equipment and attachments ensures that we have the knowledge, experience and technological resources to safely and efficiently complete cleaning or descaling
operations in a range of diverse industrial contexts.

High Capacity Pump Units

Recent additions to our fleet are containerized High Volume Pump
Units designed to NORSOK standards. They meet the latest ATEX regulations and are certified to operate in Zone 2 hazardous areas.

Hot Water Washing Option

Complementary to our fleet of High Pressure and Ultra High Pressure Water Jetting Units, EPIS provide Hot Water Washers which are designed to pump hot water at temperatures up to 70°C, with normal working temperature set at 55°C. The Hot Water Washers are ATEX compliant, designed within a crash frame and are suitable for operation in a Zone 1 hazardous area environment.


Whatever the diameter of the pipework or the complexity of the configuration, EPIS has an extensive range of equipment to deliver a full range of pipe inspection and cleaning services.

Using techniques encompassing a diverse and extensive range of specialist tooling, centralizers, cleaning heads and automated cleaning systems powered by High Pressure and Ultra High Pressure water jetting, our capability range extends to the following:

Chemical Circulation Cleaning

As an alternative to traditional de-scaling using water jetting techniques, MSIS’s partnership with EPIS also enables the provision of both heated and cold chemical circulation cleaning / flushing services for the removal of contaminants and deposits. On completion of chemical cleaning operations EPIS can manage the safe disposal of the spent chemical.

Caisson Cleaning - Internal and External De-scaling/Coating Removal using Water Jetting

To facilitate inspection by others, EPIS and MSIS provide the necessary equipment package including extensive range of pumping equipment, specialist tooling, water jetting equipment, cleaning heads and submersible camera systems to allow both the internal and external cleaning of caissons.

EPIS have engineered safe systems of work encompassing a range of specialist tooling to allow the efficient and effective vertical de-scaling and coating removal from caissons by water jetting techniques.

By deploying our submersible camera systems and pumping equipment this allows the identification of blockages and visual defects pre and post removal of internal contaminants.

External cleaning of caissons, typically removal of marine growth can be effectively achieved by using our engineered solutions, allowing remote circumferential cleaning.
Working together with other contractors, we routinely collaborate in providing caisson maintenance projects

Tube Bundle and Heat Exchanger Cleaning

EPIS has an extensive inventory of specialist water jetting accessories including remotely operated automated systems for the effective and efficient cleaning of tube bundle and heat exchangers.

Maintaining the Efficiency of Tube Bundles and Heat Exchangers

Tube Bundles and Heat exchangers can, over time, become badly scaled dramatically reducing their efficiency.
On a periodic basis this necessitates inspection using the Internal Rotary Inspection System (IRIS) technique, and to allow this the internal tubes of the bundles and heat exchangers have to be cleaned to a very high standard. The IRIS ultrasonic application is used for the inspection of a wide range of materials, including ferrous, nonferrous, and nonmetallic tubing.
This technique allows detection and sizing of wall loss as the result of corrosion, erosion, wear, pitting, cracking, and baffle cuts.

In hazardous environments, de-scaling of both vertical and horizontal tube bundles and exchangers can be undertaken either withdrawn or in situ.
Cleaning operations are on the critical path of many plant turnarounds and our tube bundle and heat exchanger cleaning solutions can effectively remove cleaning from the critical path and offer the minimum amount of downtime.

Offshore Drain Cleaning

Offshore drain cleaning is carried out effectively and efficiently, using our extensive inventory of High Pressure and Ultra High Pressure Water Jetting equipment.

Turnkey Cleaning and Camera Inspection

Our drain jetting service offers a complete solution for offshore drain cleaning. Our equipment incorporates a wide range of associated ancillary items, including intrinsically safe and explosion-proof camera inspection systems. The complete cleaning and camera inspection package allows us to:

  •  assess the internals of the drain system
  •  locate blockages
  •  identify and deploy ‘best’ solutions
  •  provide you with ‘before and after’ video footage

Isolation, Containment and Descaling

Recognizing the serious implications including the health risk to people and potential losses caused by cessation of operations, we have developed the necessary safe systems of work to engineer best solution; including isolation and localizing of affected area, effectively resolving most scenarios with the minimum of disruption to both people and operations.
Negating the health risk to people is paramount and accordingly to complement our drain descaling equipment we have the appropriate vacuum systems which allow blockages and material to be removed using closed systems minimizing exposure to people and infrastructure.


Included in our portfolio of industrial cleaning equipment is a range of high specification Vacuum Transfer Equipment.
Specifically designed and custom-built the equipment is fully certified for use in Zone 2 (Offshore classified) hazardous areas for the uplift and transportation of waste materials (for example, dry powders, sand, sludge and slurries) from tanks and vessels.

Environmentally Sensitive and Safe

This innovative, safe and ergonomic development
minimizes the need for entry into tanks or vessels to carry out cleaning. Whilst the application of this technology does not always provide the complete solution, it can significantly reduce the man-hours needed in the vessel and therefore reduces the possibility of hazard and risk exposure. Our
‘brain over brawn’ philosophy proves that enhanced safety and productivity
can be simultaneously achieved.
The environmental benefits of the vacuum transfer system include:

Vacuum Systems for Waste Transfer - Technical Specification

The design and construction of our Vacuum Transfer Equipment allows for controlled movement of a diverse range of waste liquids, sludges and solid materials in a safe and efficient manner.

The five main components of the system are:

Vacuum Transfer Unit

Typically a self-bundled, acoustically lined, containerized, diesel driven vacuum pump with a water separator and a sludge filter. Electric and Hydraulic options are available.
Clearly labelled external connection requirements are mounted on manifolds with the option of either crowsfoot or MacDonald air connections available to accept the supplementary air needed during operation. The vacuum pump and power unit assemblies are fully protected by a range of automatic shutdown devices.

Vacuum Filtration Unit

The filter unit is housed within a specifically designed skid frame that can allow operation at a self-supported elevated level to ensure problem free suction at all times. The vacuum filter unit contains a bank of high temperature and chemical resistant dust filters, which are self-cleaned using a pneumatic pulsation system.

HEPA Filtration Unit

The filter unit is of stainless steel construction contained within a certified lifting frame and is fitted with Interchangeable type EU13 (99.99-99.999%) High Efficiency Particulate Arrestance (HEPA) filters.

Easily removed inspection panels on the HEPA filtration unit provides ready access to the filter magazine thus ensuring that condition monitoring and cartridge replacement are straightforward operations.

Vacuum Discharge Hopper

Pneumatically controlled and ATEX certified, during operation allows material to be transferred from the hopper to a waiting container (vacuum skip) by an air driven conveyor. Strategically placed air hammers and vibrators prevent bridging of material within the unit.

During transit the auger boom folds in two and is securely stored underneath the hopper.

The hopper has been designed to allow continuous media removal to take place even during changeover between vacuum skips.

Vacuum Skips

Designed to be stackable to optimize space, the skips have an inlet and outlet port with camlock connectors and a hinged, sealed lid.

Waste Material Transfer Solutions – Hydraulic Pumping

To complement our extensive range of Vacuum Transfer Systems and traditional pneumatic pumping solutions, we also operate a range of Hydraulic and Pneumatic Pumping Solutions from our equipment inventory.

Lobe Pump

Hydraulic Driven ATEX approved Rotary Lobe Pumps which are designed for bulk material transfer. Of a compact design suitable and detachable from transit frame for entry into a standard man way, they are completely reversible and are capable of pumping materials with SG of up to 2 to a height of 50 meters at a flow of up to
10m3 per hour.
The Lobe Pumps can be used in tandem with Vacuum Transfer equipment as well as being a viable alternative when vacuum transfer is not the ideal solution. The addition of the Lobe Pumps provides both EPIS and by extension, our clients, with enhanced material transfer solutions.

Archimedes Screw Pumps for Sludge Transfer Operations

We have added Hydraulic Driven Archimedes Screw Pumps to our armory as an addition to the range of Hydraulic pumps designed for bulk material transfer.

The compact design is suited for deployment through man ways down to 0.4m diameter.

Relatively lightweight with maximum flow rate of 30m3 per hour and a maximum discharge pressure of 10bar.

Powered by a Zone II Hydraulic Power Pack the Archimedes Screw Pump give added versatility to the pumping systems required for particularly difficult sludge transfer operations.

The Screw Pump can be used as an alternative to the Lobe Pump for transfer of viscous materials, adding an extra dimension to the suite of pumping capabilities.

Jet Pumps

Our jet pumps rely on a Ventura effect to create a secondary flow, have no moving parts but achieves its purpose by employing specially designed venture nozzles to convert high pressure water energy to velocity and back again. We have a number of pumps available to suit a range of different applications.

Diaphragm Pumps (Pneumatic)

We have a range of air operated diaphragm pumps ranging in sizes to optimize and provide variable flow rates. Amongst our fleet we have aluminum, stainless steel, cast and polypropylene options which allow us to pump a diverse range of chemicals and materials.

Centrifugal Pumps

A centrifugal pump is a rotodynamic pump that uses a rotating impeller to increase the velocity of a fluid. With both diesel and electrical options available our centrifugal pumps are commonly used to move liquids and slurries through a piping system. Skid mounted and powered by an electric motor the pumps have an optimum flow rate of 180m3/hr.


EPIS have developed extensive knowledge and practical experience on the various techniques available for surface preparation and associated coating application methods to meet the required industry quality standards.

Highly Trained Workforce

At EPIS, we have set out to develop a highly trained workforce with the capabilities to meet all our client’s.

surface preparation requirements from mechanical preparation through to UHP water jetting.

Cost Effective and Appropriate Solutions

We have a range of preparation techniques, equipment and facilities to handle any industrial painting, protection and removal or preservation project including amongst others, preparation by means of UHP water jetting (hydro-blasting), abrasive (wet and dry) blasting and mechanical methods including dust-free and recyclable options. Once prepared, we can apply a range of coatings and composites by means of conventional, airless or manual brush roller application as appropriate.

Industrial Coating Applications, Corrosion Protection and Preservation

EPIS has the equipment, the experienced operatives and the techniques to apply conventional or specialist coatings in accordance with manufacturers and client specifications.

Having prepared the surface using one of our applications, EPIS can apply the required coating to provide an effective barrier to fcombat corrosion, significantly increasing the life of the asset and reducing the required time on planned maintenance projects.

Capabilities extend to the application of a range of high tech coatings and composites such as:

Turnkey Painting Programmes

We have an extensive range of painting equipment and accessories which allows us to deliver turnkey painting programmes for our clients as they combat corrosion and maintain their assets integrity.


In today’s safety conscious work place, the preferred option is of no- man entry into a confined space; accordingly EPIS has developed a range of technologies and methods using tank cleaning heads, vacuum transfer systems and other pumping solutions to clean tanks and vessels either remotely or with minimum man entry.

Fully Trained, Skilled Workforce

At EPIS our depth of knowledge in confined space and tank and vessel cleaning remains unsurpassed. We have a permanent workforce, fully trained and skilled in the safe working practices associated with confined space and tank and vessel cleaning. Technical support is provided by our experienced management team.

Tank Cleaning Heads

The use of specialist tank cleaning heads provide a remote cleaning solution allow for tanks and vessels to be cleaned with minimal requirement for man entry. We have a range of specialist cleaning heads which can be configured to meet the entry points of the tank / vessel.

Vacuum Transfer Systems and Pumping Solutions

For all confined space and tank and vessel cleaning the preferred solution would of course be one of no-man entry.

For this purpose, our range of vacuum transfer systems and pumping solutions can be engineered / configured to meet the specific scope of work and specific gravity of material requiring removal thus ensuring optimum performance is achieved.

In the event of a man-entry requirement, our highly trained workforce specializes in all aspects of confined space entry and rescue. Equipped with an extensive range of breathing apparatus and gas monitoring equipment along with water-tight procedures and safe systems of work, ensure that our clients’ confined space working requirements are safely and efficiently carried out.

All Industries and Applications Covered

EPIS’s tank and vessel experience covers a broad spectrum of industries, onshore and offshore Oil & Gas, Petrochemical, Power, Utilities, Distilleries, Civils and applications including Cargo Tanks, Mud Tanks, Ballast Tanks, Production Separators, Silos, Fuel Tanks, Ducts, Boilers and Septic Ta


Technology leads the way when it comes to solving the problem of safely and efficiently carrying out the cleaning of vessels and confined space entry.

Cleaning Managed Remotely or by Human Intervention

Because of the hazardous nature of confined space entry, we’ve developed a range of technologies and methods to safely clean tanks and vessels whether remotely or by human intervention. Many industries, including the oil and gas sector, have an ongoing need for safe cleaning of tanks and vessels. When muds, brines, sludges, sand, scale, waxes, sediment and other such deposits need removal, it’s often the case that human intervention is still necessary; our trained operatives have access to the most technologically advanced equipment available to do the job.

Highly Trained Operatives and Proven Safety Procedures

EPIS’s specially trained teams utilize proven procedures to manage the risks associated with tank cleaning and confined space entry for industries both onshore and offshore. Combined with EPIS’s Safe System of Work, this ensures all projects are safely and successfully completed.

Investing in Safety

EPIS has invested heavily in breathing apparatus and equipment to ensure an absolute ‘fail safe’ operational methodology. The integrity of the primary air supply is constantly monitored by the standby man via the purification unit and/or breathing apparatus trolley. In the unlikely event that both of these systems failed the entrant is also equipped with an Escape set to ensure safe exit from the situation. Safety and quality have top priority in everything we do.

Specialist Confined Space Entry Equipment

An integrated range of specialist equipment has been assembled to maximize efficiency and minimize risk. EPIS uses the latest technology in gas monitors, including portable multi-gas meters to monitor and display up to four gases simultaneously. Typically the carbon dioxide (CO2) and hydrogen sulphide (H2S) toxic sensors are used, but these can be changed in the event that a specific risk assessment identifies the potential of an alternative toxic hazard. Added safety features in this system include ultra-bright alarm lights and a powerful audible alarm, which coupled with a periodic green flash and bleep provide users with the confidence that monitoring is always in operation and alarms are never missed. In the case of noisy environments vibrating alarms are used.

Our air purification units are used to treat compressed air and bring it up to breathing air quality. In operation, an air purity analyzer is deployed to verify that air quality is kept within specification

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