The specification and model of stainless steel
ball valve | representation method of stainless steel
ball valve model | the compilation and expression of stainless steel
ball valve model is mainly divided into seven important elements: valve type, driving mode, connection type, structural characteristics, nominal pressure, sealing surface material, valve body material, etc. Let’s introduce them in details as follows.
1. Specification and model code of
ball valve:
ball valve-Q
If there is a code in front of Q, it is the additional code of
ball valve:
V indicates that the valve core has V-shaped structure. D represents low temperature. B represents thermal insulation. P represents eccentric structure. U, S and DY mostly indicate top mounted type.
2. Code of
ball valve transmission mode: common methods are
| Transmission mode |
Worm gear |
Pneumatic |
Electric |
Handle handwheel |
| Code name |
3 |
6 |
9 |
No code |
3. Code of
ball valve connection mode:
| Connection mode |
Internal thread |
Flange |
Welding |
Counter clamp |
Clamp |
Ferrule |
| Code name |
1 |
4 |
6 |
7 |
8 |
9 |
4. Code of
ball valve structure type:
| Structural style |
Code name |
Structural style |
Code name |
| Straight channel of floating ball valve |
1 |
Straight channel of fixed ball valve |
7 |
| Y-shaped tee |
2 |
Four way channel |
6 |
|
|
| L-shaped tee |
4 |
T-shaped tee |
8 |
|
|
| T-shaped tee |
5 |
L-shaped tee |
9 |
|
|
| — |
— |
Hemispherical straight through |
0 |
|
|
5. Sealing material code of
ball valve:
| Material |
Babbitt alloy |
Enamel |
Nitriding steel |
18-8 series stainless steel |
Fluoroplastics |
Glass |
Cr13 Stainless Steel |
Rubber lining |
Monel alloy |
| Code name |
B
|
C |
D |
E |
F |
G |
H |
J |
M |
| Material |
Nylon plastics |
Monel |
Lead lining |
Mo2Ti stainless steel |
Plastic |
Copper alloy |
Rubber |
Cemented carbide |
Direct machining of valve body |
| Code name |
N |
P |
Q |
R |
S |
T |
X |
Y |
W |
6. The nominal pressure value of
ball valve is directly expressed in Arabic numerals, which is 10 times of MPa. For example: for Q41F-16C, 16 indicates that the pressure is 16KG (1.6Mpa) and the peak can reach 64Mpa. If it is 150LB, it means that the pressure level of peak can reach 2500LB (150LB=1.6MPA/300LB=2.5-4.0mpa/400LB=6.4mpa/600LB=10mpa).
7. Valve body material code:
| body material |
carbon steel |
18-8 series stainless steel |
Mo2Ti stainless steel |
Chromium molybdenum steel |
Gray cast iron |
Plastic |
| Code name |
C |
P |
R |
I |
Z |
S |
| body material |
Ductile iron |
Copper and copper alloys |
|
|
|
|
| Code name |
Q |
T |
|
|
|
|
