An EGR valve’s main purpose is to help reduce nitrogen oxide (NOₓ) emissions, which are harmful pollutants by recirculating a portion of the exhaust gasses back to the air intake manifold to lower the combustion temperature.

An ETV is a component used in combustion engines to regulate the flow of exhaust gases. It plays a key role in emissions control, engine braking, and turbocharger performance.

An ITV (often just called a throttle body or throttle valve) is a key component in the air intake system of an internal combustion engine. It’s main job is to proportionally control the amount of air that enters the engine. It aids EGR flow and engine shut-off.

Simply put, the key difference is the positioning of the valve either before or after the EGR cooler. The resulting differences in the design are to cater for the slightly different conditions and environments, e.g. gas temperature, exhaust gas condensates.

Yes, our valves are engineered to perform in a wide range of environments, from highway trucks to construction, agricultural, and marine engines, with durability and reliability at the forefront of design.

GT have developed products for a wide range of applications and environments.

On-Highway

Light, Medium & Heavy-Duty Truck applications / Bus

Off-Highway

Marine, Mining, Constructions, Agriculture, Generators etc…

Yes, GT have a proven track record for designing and developing bespoke solutions for customer requirements. GT accommodates this with having all necessary capabilities in house. Design, Prototyping, Validation, Manufacturing, Quality and Assembly

GT has a core design and knowhow to apply validated materials and tolerances to the main components of the valves. Which offers somewhat of an “off the shelf” solution.

Our valve systems are designed and validated to meet international standards, including Euro VI, Tier 4, and beyond. They enable engines to achieve lower NOx and particulate emissions while maintaining performance.

GT follows the standard automotive development process (A-Sample, B-Sample, C-Sample & Production Release). During this process a range of testing is competed which is agreed during the development such as:

– Thermal Endurance

– Vibration Testing

– Corrosion Testing

– Thermal Shock Testing

– Environment Testing

– Bespoke/Custom component/function testing.

Yes, our electronically actuated valves are fully compatible with modern engine control units (ECUs) and can be integrated with digital diagnostics and predictive maintenance systems.