|
Test Pressure (Mpa)
|
(Mpa) Nominal pressure (Mpa)
|
(Class) Pressure level (Class)
|
|||||||||||
|
1.6 1.6
|
2.5 2.5
|
4.0 4.0
|
6.4 6.4
|
10.0 10.0
|
16.0 16.0 | 25.0 25.0 |
150 150
|
300 300
|
400 400
|
600 600
|
900 900
|
1500 1500 | |
|
Strength test
|
2.4 2.4
|
3.8 3.8
|
6.0 6.0
|
9.6 9.6
|
15.0 15.0
|
24 24 | 37.5 37.5 |
3.1 3.1
|
7.8 7.8
|
10.2 10.2
|
15.3 15.3
|
23.1 23.1
|
38.4 38.4 |
|
Seal test
|
1.8 1.8
|
2.8 2.8
|
4.4 4.4
|
7.0 7.0
|
11.0 11.0
|
17.6 17.6 | 27.5 27.5 |
2.2 2.2
|
5.6 5.6
|
7.5 7.5
|
11.2 11.2
|
16.8 16.8
|
28.1 28.1 |
|
Airtight test
|
0.5-0.7 0.5-0.7
|
||||||||||||
|
Operating Temperature
|
PTEE ≤ 150 ℃ PPL E ≤ 300 ℃ carbon ≤ 350 ℃
|
||||||||||||
|
For media
|
C: water, oil, steam P: nitric acid (temperature ≤ 200 ℃) R: acetic acid (temperature ≤ 200 ℃)
|
||||||||||||
Forged Steel Fixed Ball Valve Main Part Material
|
Part Name
|
Material
|
|||
|
Material code
|
Ｃ C
|
Ｌ L
|
Ｐ P
|
Ｒ R
|
|
Valve bonnet
|
WCB WCB
|
ZGOOCr17Ni14Mo2(CF3M) ZGOOCr17Ni14Mo2 (CF3M)
|
ZG1Cr18Ni9Ti(CF8) ZG1Cr18Ni9Ti (CF8)
|
ZG1Cr18Ni12Mo2Ti(CF8M) ZG1Cr18Ni12Mo2Ti (CF8M)
|
|
Sphere
|
2Cr13 2Cr13
|
ZGOOCr17Ni14Mo2(CF3M) ZGOOCr17Ni14Mo2 (CF3M)
|
ZG1Cr18Ni9Ti(CF8) ZG1Cr18Ni9Ti (CF8)
|
ZG1Cr18Ni12Mo2Ti(CF8M) ZG1Cr18Ni12Mo2Ti (CF8M)
|
|
Stem
|
2Cr13 2Cr13
|
316L 316L
|
1Cr18Ni9Ti(304) 1Cr18Ni9Ti (304)
|
1Cr18Ni12Mo2Ti(316) 1Cr18Ni12Mo2Ti (316)
|
|
Seat sealing surface
|
PTFE＋PTFE, PTFE, carbon fiber + PTFE, polystyrene on the bit
|
|||
|
Stud nuts
|
35 35CrMoA(B7) 45(2H) 35 35CrMoA (B7) 45 (2H)
|
2Cr13 (420) 1Cr18Ni9 1Cr17Ni2 (431)
|
||
|
Filler
|
V-PTFE, flexible graphite
|
|||