ETV
Exhaust Throttle Valves
Optimised airflow control for cleaner, more efficient combustion
Product Overview
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.
GT are proven globally in development and production of ETVs spanning a wide range of customer requirements, applications and emissions legislations.
GT continues to develop for the next generation of ICE applications, fuels, emissions legislations and duty cycles.
Technical Specifications
Engine Size:
4L to 18L
Exhaust Pipe Size:
Ø70mm to Ø120mm (Current Range)
Fuel Types:
Diesel, LNG, CNG, Hydrogen
Ambient Temperatures:
Electric: -40°C to +150°C (Water Cooling / Temperature Shielding)
Pneumatic: -40°C to +250°C
Durability:
Up to 5 million Actuators
Actuator Types:
– Pneumatic with Position Feedback
– Electric (Smart and Non-Smart)
– Hydraulic
Applications:
On/Off Highway (Including: Marine, Constructions, Mining, Agriculture etc)
Legislation:
Eu3 to Eu7 (And Equivalents) T3 to StgV / PNLT to pPNLT
We design
to our customers
individual specifications,
for all sizes of engines
and applications
Challenge us with your requirements!
Technical Drivers
Pneumatic & Electric
Actuators Technology
GT actuator technology manages engine air and maximises product performance
35mm Actuator (Kit)
Pneumatic Acuators
Inhouse Solution
✓ Own Acuator design in place
✓ Used in majority of valves sold by GT
Actuator Strengths
✓ Temperature resistant
(-40C – 160C – new project request 250C)
✓ Can withstand 15 bar pressure
✓ Perform 5 million actuations
✓ Valve response time meeting OEM demands
50mm Actuator
Electric Acuators
Inhouse Solution
✓ Own Acuator design in place
✓ Used in majority of valves sold by GT
Actuator Strengths
✓ Temperature resistant
(-40C – 160C – new project request 250C)
✓ Can withstand 15 bar pressure
✓ Perform 5 million actuations
✓ Valve response time meeting OEM demands
Production Capabilities
Inhouse production of GT’s own design pneumatic actuators. Flexible and robust line for varying recipes depending on design requirements.
- 35mm cylinder
- 50mm cylinder
- 65mm cylinder (in production)
100% of actuators are tested for stroke length, pressure intensity with safety factor and functional spring return before getting engraved as a mark of approval and for date/serial no. traceability.
CNC machining for low-mid volume serial production and rapid inhouse prototyping.
All milling machines are 4-axis/twin pallet equipped with high pressure through spindle coolant and tool length wear detection.
Machines include;
- Doosan HP5100
- Heller H5000 & H6000
- DMG Mori NHX5500
Welding of the lever assemblies is one of the core sub-processes in the majority of GT products.
The purpose-built weld cells are used for serial production and rapid inhousee prototyping.
We have inhouse weld-sectioning and macro-analysis of the weld batches for the finest quality.
Drilling of the lever assemblies is another of the core sub-processes for the majority of GT products.
This is a simple but highly precise process which is critical for the durability and longevity of the valve performance throughout the life of the products.
- Robodrill – high performance vertical mill
Featuring; early fault detection, high pressure through spindle coolant, ultra fast tool change, high tool capacity and pneumatic clamping.
Universal Assembly Line
Bushing Operation
Precision control for bushing process ensuring quality bushes parts for 100% of valves. Bush position and press force traceability and control.
- Capable of automation of any bushing/pressing processes.
- Smart camera protection and measurement ready.
- Fully flexible for all valve designs.
Flexible Assembly Station
Fully flexible assembly station.
- CAA – Computer Aided Assembly
- Pick-to-Light
- Torque and angle electric wrench
- Smat camera detection and measurement ready
- Fast changeover
End of Line Test Station
100% of sample and serial production valves go through an EoL function and leakage test.
Test functions include;
- Electric actuator calibration
- Open/Close function testing
- Valve external leakage
- Valve internal + external leakage
- Serial number traceability
- Smart camera detection and measurement
- Data traceability and serial no. identification
- Adhesive label / engraved plate etc
CoBot Quality Firewall
High resolution SMART camera, mounted to a robotic arm allows any customer/design specific additionss to the product to be coveredd from a quality perspective that can’t be catered for in the previous processes.
Keeping high quality assurance with maximum line flexibility.
Your Project. Our Expertise. Let’s Talk.
Our experts are ready to help.