Onshore Cathodic Protection Solutions

Hockway supplies the highest quality cathodic protection for buried and submerged pipelines as an effective secondary defence after factory and field-applied coatings. Our equipment, material, capabilities and expertise can cover your onshore assets' corrosion control needs with the most up-to-date effective and innovative methods available.

Lasting Experience

Our comprehensive, technical know-how comes with in depth experience. In fact, we have three decades worth of peace of mind to offer our clients, including up-to-date experience in the most challenging environments. For instance, we supply pipelines with custom designed DC/DC converters installed within remote control cubicles.

End-to-End Project Management Capabilities

We can support your onshore piping protection project at every stage of the process--from initial surveys to conceptual design to detailed design and from material supply to installation supervision and from commisioning to operation and maintenance. 

System Management and Control

We can provide you with custom-designed remote monitoring and control systems that are easy to operate and maintain. Ongoing operation and maintenance services can be part of your package.

It has become increasingly necessary to protect vital buried utility and process lines within process plants. We supply cathodic protection to protect carbon steel and stainless steel buried in plant piping from corrosion and to provide a powerful secondary defence to factory and field applied coatings.

Project Management: We understand the key issues and critical activities of managing a process plant project, which makes us a valuable support for EPC contractors by helping them anticipate issues and effectively integrating the corrosion control within the overall project.

System Management and Control: We provide you with custom-designed remote monitoring and control systems that are easy to operate and maintain. We can also offer you ongoing operation and maintenance service as part of your package.

Lasting, Groundbreaking Experience: We recently supplied a large field development project with over 100 close anode systems. Each system needed 10 canistered MMO anodes and independent power supplies, all of which we manufactured in-house.

Time-limited and Long-term Prevention Material: We supply sacrificial anodes for corrosion control for a limited time, or long-term corrosion control with impressed currents through most available anode material.

Temporary

Temporary systems can be used where construction periods are likely to be extensive and the soil is particularly corrosive.

Zinc Ribbon Sacrificial Anodes: We supply a range of sizes to provide you with an easily installed, low cost and maintenance free method of protection.

Magnesium Packaged Sacrificial Anodes: These are a popular choice for hotspot or temporary corrosion control.

Long-term

Impressed Current Anodes: We supply the industry preferred mixed metal oxide coated titanium (MMO) anode with high resistance Kynar or Halar cables.

Anode Proximity: We supply popular close anode systems designed to be placed at regular intervals within 2m to 3m of the buried pipe. We can also supply remote systems, but these, in our opinion, are less effective and more susceptible to interference.

A Unique Hazardous Area Protection Capability

Our ATEX certified power supplies allow us to design a cathodic protection system within hazardous areas, as the power supplies can be located in Zone II areas. The specific benefits are:

• It reduces the armoured cable runs, which can significantly reduce your material cost
• More importantly, it reduces the installation time and dramatically brings forward your overall project schedule.

Hockway offers a variety of anodes for internal tank protection.

Sacrificial Cathodic Protection Systems

We provide aluminum, zinc and other alloy anodes for internal tank protection. 

Impressed Cathodic Protection Systems

Our MMO wire systems can be powered separately or can use an integrated dual channel (independent) power supply with one channel for the undertank and the other for the internal system.

Our in-depth understanding of tank design and construction schedules allow us supply corrosion control system engineering, documentation and materials at the right time and place to support your project. 

We stock extensive undertank anode material to make sure these materials are delivered to support the construction schedule.

System Types:

• MMO grid
• MMO piggyback
• shallow groundbeds
• deepwell groundbeds

Grid System

Lower material costs are counter balanced by more difficult installation, resulting in higher installation costs.

Wire or Piggy Back System

This is made up of independently cabled MMO loops which not only provide some redundancy, but are easier to install, even with unskilled labour. Because the undertank anode system cannot be maintained after installation, we strongly recommend the wire system.

In-house Design and Built Power Supplies

Our capabilities include multi-channel power supplies and hazardous area units so we can tailor systems for specific projects.

System Management and Control

We provide you with custom-designed remote monitoring and control systems that are easy to operate and maintain. We can also offer you ongoing operations and maintenance services as part of your package.

It is becoming increasingly necessary for oil and gas operators to protect their production well casings from corrosion with cathodic protection. Hockway has been involved in the conceptual design and application of many well casing protection systems. At Hockway, we have extensive experience in the design, survey (E-log i), materials supply and installation of all these systems. 

Anode Systems

We supply and install deepwell MMO anodes to protect a single of cluster of wells.

Solar Power Supplies

As production wells tend to be in remote locations away from AC power supplies, we offer solar powered cathodic protection systems. We have extensive experience in the specification, manufacture, installation and operation of these systems. Solar system controllers can be manufactured in-house to give a common interface and control with our transformer rectifiers on other parts of the system.

AC Power Supplies

We have a number of designs available for both air-cooled and oil-cooled transformer rectifier units. These are manufactured in-house to the highest quality standards.