Type of construction | BB-BG-OS&Y |
type of drive | Manual, pneumatic |
design standard | DIN3356 |
structure length | DIN3202 |
connecting flange | DIN2543-2545 |
text and inspection | DIN3230 |
Materials of Main Parts
NO | Name | Material |
1 | valve body | GS-C25 1.7363 1.4308,1.4408,1.4306,1.4301 |
2 | Disc | ASTM A182-Gr.F6a ASTM 182-F22 ASTM A182 F304,F316,F321,F304L,F316L |
3 | Bolzen | ASTM A182-Gr.F6a ASTM 182-F22 ASTM A182-F304,F316,F321,F304L,F316L |
4 | Bellows subassembly | 1Cr18Ni9Ti,304,316 |
5 | Valve stem | ASTM A182-Gr.F6a ASTM 182-F22 ASTM A182-F304,F316,F321,F304L,F316L |
6 | Valve deck | GS-C25 1.7363 1.4308,1.4408,1.4306,1.4301 |
7 | Packing | soft graphite,PTFE |
8 | Packing Gland | GS-C25 1.7363 1.4308,1.4408,1.4306,1.4301 |
9 | Locating plate | 25,45,304,316 |
10 | Stem nut | Copper alloy C95200 |
11 | Hand wheel | WCB/QT400-18 |
12 | Stud | ASTM A193-B7,A193-B8,193-B8M |
13 | Hexagon nut | ASTM A194-2H,A194-8,194-8M |
14 | Washer | soft graphite+ stainless,PTFE |
Specification of the Products:
Nominal pressure(MPa) | Body test pressure(Mpa) | Seal test pressure(Mpa) | Applicable temperature | Medium |
1.6 | 2.4 | 1.76 | -20℃ ~ 350℃ | water, steam,oil ect |
2.5 | 3.75 | 2.75 | ||
4.0 | 6.0 | 4.4 | ||
6.4 | 9.6 | 7.04 |