9. يمكن أن يكون وضع القيادة يدويًا أو كهربائيًا أو هوائيًا.
مواد المكونات الرئيسية
|
serial number |
Part name |
Material |
||
|
Z |
C |
D |
||
|
1 |
Seat |
rubber |
rubber |
rubber |
|
2 |
Taper pins |
45 steel |
45 steel |
stainless steel |
|
3 |
Butterfly plates |
Gray cast iron with hard chrome plating |
Carbon steel or stainless steel |
stainless steel |
|
4 |
Valve body |
Gray iron |
carbon steel |
stainless steel |
|
5 |
Studs |
35 steel |
carbon steel |
stainless steel |
|
6 |
Stem |
45 steel |
stainless steel |
stainless steel |
|
7 |
keystroke |
45 steel |
45 steel |
stainless steel |
|
8 |
Bushings |
Copper-based powder metallurgy |
Copper-based powder metallurgy |
Copper-based powder metallurgy |
|
9 |
O-rings |
rubber |
rubber |
rubber |
|
10 |
Pneumatics |
|
|
|
|
11 |
Position indicator |
plastics |
plastics |
plastics |
