Solutions
- Valve part CAD / 3D pattern drawings are prepared which forms the foundation of a valve
- The valve functional testing is done first virtually on computer aided design software
- Then CAM data created for machining of Casting Patterns
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/design-model.jpg)
- Depending on casting volume, aluminium or wooden patterns are selected for specific valve types and sizes
- For automated moulding & casting lines, sets of aluminium patterns are prepared for faster casting speeds
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/casting-1.jpg)
Aluminium GV Body Pattern
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/casting-2.jpg)
Aluminium Pattern Stock
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/casting-3.jpg)
Wooden BFV Body Pattern
Foundry & Casting
- Full, semi automatic and manual moulding facilities
- Greensand / Resin Sand moulding Casting with core or without core Casting pieces from 0,1 to 8000 kg.
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/castting-4.jpg)
Full Automated Casting
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/castting-5.jpg)
Sand/Shot Blasting After Casting
- High number of CNC machines
- Precise machining with CNC lathes
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/mac1.jpg)
BFV Milling Machine
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/mac2.jpg)
Ball Valve CNC Drilling
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/mac3.jpg)
Machining up to DN3000
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/mac4.jpg)
Turning Lathe
- Main type of coating is Electrostatic/Fusion Bonded Powder Epoxy
- All sizes, even biggest sizes are FBE coated
- Industrial/Spray Epoxy is also applied on certain type of valves
- Minimum 250-micron thickness for Powder Epoxy. Min. 300-micron or higher thicknesses are also available
- WRAS approved coating applied when specified
- Coating Inspection Report is created after process
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/paint-1.jpg)
Automated Coating Line
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/paint-2.jpg)
DN2200 During Coating
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/paint-3.jpg)
DN2200 After Coating
- Assembly staff is specialized on the assembly according to each product type
- Assembly guiding parts used for correct positioning
- Periodical assembly trainings are given to avoid missing parts and to increase efficiency
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/assembly1.jpg)
Gate Valve Assembly
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/assembly2.jpg)
Gate Valve Assembly
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/assembly3.jpg)
Butterfly Valve Assembly
- After assembly, each piece hydrostatically tested without exception according to EN12226-1 / EN12266-2 testing standards Rate A is our acceptance criteria
- Shell Test according to PN x 1.5
- Seat Test according to PN x 1.1
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/quality1.jpg)
Seat Test with Blind Flange
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/quality2.jpg)
Big Size Outdoor Testing with Blind Flange
![](https://www.tvnvalve.com/wp-content/uploads/2020/06/quality3.jpg)
Test Bench up to DN1800