1. 2011011481 Bae seon hye 2011011490 Son jung hwa 2011011542 Choi jin
Hydraulic Valve
Bae seon hye
Son jung hwa
Choi jin

2. Hydraulic Valve’s kind
pressure control valve
flow control valve
directional control valve

3. Flow Control Valve Device that controls the flow of fluid.
유체의 흐름을 조정하는 장치

4. The principle of working
Control Handle
niddle
Closure
Partial opening
Full opening

5. Part 1. Casting

6. Part 1. Drilling process of making the fluid flowing path.
It produce a hole that passes through the horizontal by drilling machine.

7. Part 1. Tapping Tapping is a kind of drilling. Tapping uses
it to make the screw holes.

8. Part 2. Drawing

9. Part 2. Cutting

10. Part 2. Machining(Lathe)

11. Part 2. Thread rolling

12. Annealing & Combine

13. Thank you