| |
|
| 1 |
Body |
| 2 |
Spring |
| 3 |
Anti-fire packing |
| 4 |
O ring |
| 5 |
Seat ring |
| 6 |
Seat |
| 7 |
Ball |
| 8 |
Stud |
| 9 |
Anti-flre gasket |
| 10 |
O ring |
| 11 |
Bonnet |
| 12 |
Check valve |
| 13 |
Sealant injection valve |
| 14 |
Anti-static device |
| 15 |
Stem |
| 16 |
Sliding bearing |
| 17 |
Thrust bearing |
| 18 |
O ring |
| 19 |
O ring |
| 20 |
Anti-fire gasket |
| 21 |
Seal gland |
| 22 |
Socket head cp screw |
| 23 |
Pin |
| 24 |
Packing |
| 25 |
Packing gland |
| 26 |
Hexagon bolt |
| 27 |
Stopper |
| 28 |
Retainer ring |
| 29 |
Sealant injection valve |
| 30 |
Air release valve |
| 31 |
Check valve |
| 32 |
Sealant injection valve |
| 33 |
Drainge valve |
| 34 |
Drainge valve |
| 35 |
Thrust bearing |
| 36 |
Sliding bearing |
| 37 |
O ring |
| 38 |
Anti-fire gasket |
| 39 |
Lower cover |
| 40 |
Stud |
| 41 |
Hexagon nut |
|
|
 |
| Double block and bleed valves |
| Nominal d |
ameter(in) |
NPS 2—16 |
| Nominal Pressure(MPa) |
Class150~Class2500 |
Materials
of
parts |
NO． |
Part Name |
Materials |
| Carbon Steel |
Stainless Steel |
| 1 |
Body |
ASTM A105 |
ASTM A182 304 |
ASTM A182 316 |
ASTM A182 304L |
ASTM A182 316L |
| 2 |
Spring |
17-7PH |
| 3 |
Anti-fire packing |
Graphite |
| 4 |
O ring |
VITON |
VITON |
VITON |
VITON |
VITON |
| 5 |
Seat ring |
ASTM A105 . ENP |
ASTM A182、304 |
ASTM A182、316 |
ASTM A182 304L |
ASTM A182 316L |
| 6 |
Seat |
PTFE/NYLON/PEEK/PPL |
| 7 |
Ball |
ASTM A105 . ENP |
ASTM A182 304 |
ASTM A182 316 |
ASTM A182 304L |
ASTM A182 316L |
| 8 |
Stud |
A193 87M |
A320 88 |
A320 88M |
A320 88 |
A320 88M |
| 9 |
Anti-fire gasket |
SST+Graphite |
| 10 |
0 ring |
VITON |
| 11 |
Bonnet |
ASTM A105 |
ASTM A182 304 |
ASTM A182 316 |
ASTM A182 304L |
ASTM A182 316L |
| 12 |
Check valve |
Combined parts |
Combined parls |
Combined parts |
Combined parls |
Combined parts |
| 13 |
Sealant injection valve |
Combined parts |
Combined pans |
Combined parls |
Combined parls |
Combined parts |
| 14 |
Anti-static device |
Combined parts |
Combined parls |
Combined parts |
Combined parls |
Combined parts |
| 15 |
Stem |
ASTM A182 F6a |
ASTM A182 304 |
ASTM A182 316 |
ASTM A182 304L |
ASTM A182 316L |
| 16 |
Sliding bearing |
MetaI+PTFE |
MetaI+PTFE |
MetaI+PTFE |
MetaI+PTFE |
MetaI+PTFE |
| 17 |
Thrust bearing |
PTFE |
| 18 |
O ring |
VITON |
19
|
Onng
|
VITON
|
20
|
Anti-fire
|
SST+Graphite
|
21
|
Seal gland
|
ASTM A105、ENP
|
ASTM A182 304
|
ASTM A182 316
|
ASTM A182 304L
|
ASTM A182 316L
|
| 22 |
Socket head cap screw |
A193 87M |
A320 88 |
A320 88M |
A320 88 |
A320 88M |
| 23 |
Pin |
ANSI 1035 |
ANSI 1035 |
ANSI 1035 |
ANSI 1035 |
ANSI 1035 |
| 24 |
Packing |
Graphite |
Graphite |
Graphite |
Graphite |
Graphite |
| 25 |
Packing gland |
ASTM A216 WCB |
ASTM A216 WCB |
ASTM A216 WCB |
ASTM A216 WCB |
ASTM A216 WCB |
| 26 |
Hexagon bolt |
A193 87M |
A320 88 |
A320 88M |
A320 88 |
A320 88M |
| 27 |
Stopper |
A3·HZn |
A3．Zn |
A3．HZn |
A3．HZn |
A3．HZn |
| 28 |
Retainer ring |
65Mn |
65Mn |
65Mn |
65Mn |
65Mn |
| 29 |
Sealant injection valve |
Combined parts |
Combined Darts |
Combined parts |
Combined parts |
Combined parts |
| 30 |
Air release valve |
Combined parts |
Combined parts |
Combined parls |
Combined parts |
Combined parts |
| 31 |
Check valve |
Combined parts |
Combined parts |
Combined parls |
Combined parts |
Combined parts |
| 32 |
Sealant nijection valve |
Combined parts |
Combined parts |
Combined parts |
Combined parts |
Combined parts |
| 33 |
Drainage valve |
Combined parts |
Combined parts |
Combined parts |
Combined parts |
Combined parts |
| 34 |
Drainage valve |
Combined parts |
Combined DartS |
Combined parts |
Combined parts |
Combined parts |
| 35 |
Thrust bearing |
PTFE |
| 36 |
sliding bearing |
MetaI+PTFE |
MetaI+PTFE |
MetaI+PTFE |
MetaI+PTFE |
MetaI+PTFE |
| 37 |
O ring |
VITON |
| 38 |
Anti-fire gasket |
SST+Graphite |
| 39 |
Lower cover |
ASTM A105 . ENP |
ASTM A182 304 |
ASTM A182 316 |
ASTM A182 304L |
ASTM A182 316L |
| 40 |
Stud |
A193 87M |
A320 88 |
A320 88M |
A320 88 |
A320 88M |
| 41 |
Hexagon nut |
A194 2HM |
A194-8 |
A194-8M |
A194-8 |
A194-8M |
| 42 |
Hexagon nut |
A194 2HM |
A194-8 |
A194-8M |
A194-8 |
A194-8M |
Applicable service
|
Applicable media
|
Wate, r.steam.oil.gas
liquefied gas,natura，gas,ete |
Nitnc Acid |
Acetic Acid |
Strong Oxidizer |
Urea |
| conditions |
Applicable temperature |
|
| Design and manufacturing |
APL 608、 API 6D |
| Face-to-face dimensions |
ASME B16.10、API 6D |
| Type connection |
Flange |
ASME B16.5/ASME B16.47 |
Butt welding |
ASME B16.25 |
| Pressure test |
API 598、API 6D |
| Transmission mode |
Manual,worm and worm gear transmisson,pneumatic,electric | |
|
