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 F22 | A182 F304L | A182 F316L |
2 | Disc | A276 420 | A276 304 | A276 304L | A276 316L |
3 | Stem | A182 F6 | A182 F304 | A182 F304L | A182 F316L |
| Bellows | SS |
4 | Gasket | 316+graphite | 316+PTFE |
5 | Bonnet | A105 | A182 F22 | A182 F304L | A182 F316L |
6 | Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
7 | Packing | Flexible graphite | PTFE |
8 | Bushing | A276 420 | A182 F304 |
10 | Gland | A216 WCB | A351 CF8 |
12 | Stem nut | A276 420 |
| Handwheel | A197 |
13 | Retaining nut | A194 2H | A194 4 | A194 8 | A194 8M |
| Pin | A276 420 | A182 F304 |
| Bolt | A193 b7 | A193 B16 | A193 B8 | A193 B8M |
| Nut | A194 2H | A194 4 | A194 8 | A194 8M |
| Gasket | SS |
14 | Nameplate | SS |
Applicable medium | Water,steam,oil.,etc | Water,steam,oil.,etc | Acid.,etc |
Applicable temp. | -29~425°C | -29~550°C | -29~200°C |
Main Dimensions and Weight.
NPS | RB | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
SB | / | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 |
L1 | 79 | 79 | 92 | 111 | 120 | 120 | 140 |
L | 79 | 79 | 92 | 111 | 120 | 152 | 172 |
H(Open) | 220 | 220 | 225 | 244 | 321 | 321 | 347 |
W | 100 | 100 | 100 | 125 | 160 | 160 | 180 |
WT(kg) | BB | 3.2 | 3.0 | 4.8 | 7.9 | 11.0 | 16.8 | 25.2 |
WB | 3.0 | 2.8 | 4.8 | 7.0 | 9.6 | 13.5 | 20.25 |