1.Standard specification.
Design and manufacture:API 602,BS 5352,ANSI B16.34.
Connection ends conform to:
-Socket welded ends:ANSI B16.11.
-(NPT threaded)Screw ends:ANSI B1.20.1.
-Butt-welded ends:ANSI B 16.25.
-Flanged ends:ANSI B 16.5.
Inspection & testing:API 598.
NACE MR 0175 on request
Tag: MSS SP 25.
2.Construction features.
Non-Rising Handwheel,
Outside Screw And Yoke,Rising Stem.
Integral Backseat.
Solid Wedge,Renewable Seat Rings,Sprial Wound Gasket.
Spring Loaded To Ensure That Even In The Low-Pressure Sealing Performance As Well.
Low Leakage Test Stem Packing By.
Automatically Adjust The Preload Gland Packing.
3.Product Range.
Port:Full Port(FP)/Reduced Port(RP).
Structure:BB(Bolted Bonnet),WB(Welded Bonnet),PSB(Pressure Self-sealing Bonnet).
Rating: Class 150/ 300/ 600/ 800/ 900/ 1500/ 2500/ 4500.
Size Range:3/8" to 2"
End Options: FLG, SW(Socket Welded), Threaded(NPT/BSP), BW(Butt Welded),
Optional Materials:
| CARBON STEEL | A105,LF2 |
| STAINLESS STEEL | F304,F304L,F316,F316L |
| DUPLEX | F51,F55 |
| ALLOY | F1,F5,F5A,F9,F11,F22 |
Special Design:
-Bellow Seal forged gate valve.
-Cryogenic forged gate valve.
-Extended body forged gate valve.
-Venting forged gate valve.
-Twins forged gate valve.
4.Application.
For valves which size is smaller than 2"(DN50), forged steel valves are recommended. Compared with castings,forged valve offer the advantages of more uniform structure, greater density, higher strength integrity, enhanced dimensional characteristics and closer dimensional tolerances.Owing to so many advantages,the forged valve can be widely used in the fields of petroleum,natural gas,chemical,power and other industries.
Main Parts and Material.
| No | Part name | Material |
| 1 | Body | A105 | A182-F304(L) | A182 F316(L) |
| 2 | Seat | A276 410+STL | 304(L)+STL | 316(L)+STL |
| 3 | Disc | A276-420 | 304((L)+STL | 316(L)+STL |
| 4 | Stem | A276 410 | A276 304(L) | A276 316(L) |
| 5 | Gasket | 316+graphite |
| 6 | Bonnet | A105 | A182 F304(L) | A182 F316(L) |
| 7 | Pin | A276 410 | A276-304 |
| 8 | Bushing | A276 410 | A276 304 | A276 316 |
| 9 | Nut | A194 2H | A194 8 |
| 10 | Stem nut | A276 410 |
| 11 | Nameplate | SS |
| 12 | Retainling nut | A108-1020 |
| 13 | Handwheel | A197,A47 |
| 14 | Washer | A276-410 |
| 15 | Gland | A105,WCB | F304,CF8 |
| 16 | Gland bolt | A193 B7 | A193 B8 | A193 B8M |
| 17 | Bolt | A193 B7 | A193 B8 | A193 B8M |
| 18 | Packing | Graphite |
| 19 | Bellows | F321 | F316L |
Main External Dimensions.
| NPS | 1/2 | 3/4 | 1 | 1 1/2 | 2 |
| d | 8 | 13 | 19 | 32 | 35 |
| L1 | SW/NPT | CL800 | 82 | 90 | 92 | 130 | 150 |
| L2 | RF | CL150 | 108 | 117 | 127 | 165 | 203 |
| CL300 | 140 | 152 | 165 | 190 | 216 |
| CL600 | 165 | 190 | 216 | 241 | 292 |
| H | SW/NPT | CL800 | 255 | 285 | 345 | 545 | 594 |
| RF | CL150 | 340 | 340 | 360 | 450 | 540 |
| CL300 | 350 | 350 | 375 | 470 | 570 |
| CL600 | 360 | 360 | 390 | 500 | 600 |
| W | 100 | 100 | 125 | 160 | 180 |
| WT(kg) | SW/NPT | CL800 | 3.0 | 3.3 | 5.9 | 10.2 | 16.2 |
| RF | CL150 | 3.6 | 4.3 | 6.3 | 11.5 | 19.5 |
| CL300 | 4 | 4.8 | 7.3 | 14.5 | 22 |
| CL600 | 5.8 | 8.1 | 18 | 24.5 | 42 |