Meet The Team
Pierre Geoghegan, Managing Director

Pierre is a Marine Engineer by trade with over 35 years’ experience in heat exchanger sales, service and solutions to industries including:

Mineral Processing
Oil and Gas
Marine and Power
Food & Beverage

Pierre has led the Delta T Technologies team to provide our clients with safe, environmentally sustainable, professional, reliable and timely services for their heat exchanger requirements and needs. Over the years Delta T Technologies have built very good relationships with:

Rio Tinto Yarwun
Queensland Aluminium Ltd - Gladstone
Lihir Gold
Glencore Co (XStrata)
Solstad Farstad

Robert Keen, Operations Manager Perth

Rob has 11 years’ experience in the mechanical and heat exchanger industry and has worked on Heat Exchangers throughout numerous industries including Oil and Gas, Mining, Heating Ventilation and Cooling (HVAC) and Food + Beverage.
Rob has extensive experience in leading teams across multiple operations and sites in the safe, professional and timely removal/installation, service, repair and overhaul of heat exchanger units.


Bachelor of Business
Certificate III in Engineering - Mechanical Trade
General management and leadership program - AIM WA
HRW – Forklift
WHS for Supervisors

Chen Kiat, Sales Engineer

CK is a Chemical Engineer experienced in the sale of solutions to the energy and resources sector. Having undertaken roles in production and quality control, attention to detail is a priority along with getting things right the first time. CK’s greatest satisfaction is adding value to the business operations, be it large-scale established businesses or small start-ups.

He believes every solution revolves around communication and trust and enjoys nothing more than connecting customers’ requirements, to the right cost-effective solution.


Bachelor of Engineering (Chemical)
Certified Portable XRF Operator

Jon Roberts, Technical Lead

Jon has 7 years’ experience in the heat exchanger and valve industry working across Oil & Gas, Minerals Processing, Mining, Food & Beverage, HVAC, Marine & Power and Refrigeration sectors.

Jon has a wide range of experience leading teams in various environments, with the ability to undertake testing, failure diagnosis, repair, refurbishment and service reporting of heat exchanger units in a professional and timely manner.


HRW - Rigging and Hand Signalling, Overhead Crane, Forklift Truck
H2S Alive
Canadian Standard First Aid Level C (CPR/AED)
Construction Safety Training System (CSTS-09)
OSSA Basic Safety Orientation
OSSA Safe Work Permit

Alex Chalmers, Workshop Supervisor

Alex has 10 years’ experience in the heat exchanger industry working across Oil & Gas, Minerals Processing, Mining, Food & Beverage, HVAC, Marine & Power and Refrigeration sectors.
During large projects and high service schedules, Alex undertakes a supervisory and leadership role mentoring new employees in the safe, efficient and effective servicing, testing, repair, refurbishment & overhaul of heat exchanger units.


HRW – Forklift, Dogging, Elevated Work Platform



Heat exchanger Servicing

We are fully equipped to meet your heat exchanger servicing and repair demands. This is achieved by proper assessment by experts with combined experience of 50+ years working with heat exchangers and determining the best method of repair.


Our line of chemical formulations are designed to safely remove water scale, rust, lime and other deposits. We use an application specific process to restore your equipment to peak operating efficiency.

Plates & Gaskets

These can be supplied as Plate Packs (plates & gaskets), plates only or gaskets only. Having access to one of Australia’s largest and most diverse product ranges makes Delta T Technologies the ideal supplier to meet all your Plate Heat Exchanger needs.

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