info@welcovalve.com
TEL: 86-577-67279881
FAX: 86-577-67279880
+86-15067717767
Skype: welcovalve
Our Emergency shutdown ball valve can be three-piece body or two piece body, both cast steel and forged steel are available, Size 2" to 56", pressure 150Lb to 2500Lb.
Features:
1.Forged ball
2.Anti-fire safe design
3.Anti-static device
4.Free leakage of body Sealed construction
5.Low torque in operation
6.Double block&bleed(DBB)
7.Emergency sealing
8.Extension stem at your choice
9.Automatic body cavity relief
10.Various driving types: gear, lever, electric, hydraulic, pneumatic
Standards Compliance
Design and manufacture: ANSI B16.34, API 608, API 6D, BS5351
Face to face dimensions: ANSI B16.10, API 6D
Flanged connection: ANSI B16.5, ANSI B16.47
Butt welded: ANSI B16.25
Fie-safe: API 607, API 6FA
Test and inspection: API 598, API6D
Standard Material Specifications
Body: ASTM A216 WCB,A351 CF8, A351 CF8M, A351 CF3,A351 CF3M,A351 CN7M, 1A(CD4MCu)
Cap: ASTM A216 WCB,A351 CF8, A351 CF8M, A351 CF3,A351 CF3M,A351 CN7M, , 1A(CD4MCu)
Ball: A105, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Stem: A105, A182 F304 A182 F316 A182 F304L A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Seat: A105, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Seat ring: PTFE/RPTFE/NYLON/PEEK
Fixed trunnion: A105, A182 F304, A182 F316, A182 F304L, A182 F316L,1A(CD4MCu)
O-ring: VITON, PTFE, NBR
Seat spring: 17-7PH/Inconel/304/316
Cover bolt: A193 B7, A193 B8, A193 B8M, A320 L7
Cover nut: A194 2H, A194 8, A194 8M, A194-4
Bearing: SF-1, 304SS/PTFE
Performance Specification For Ball Valve
|
Technical Specification |
PN(Mpa) |
ANSI Class (Lbs) |
|||||||||||
|
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
||
|
Test Pressure (MPA) |
Shell Test |
2.4 |
3.75 |
6.0 |
9.6 |
15.0 |
2.94 |
7.67 |
10.2 |
15.3 |
22.98 |
38.3 |
63.83 |
|
Seal Test |
1.76 |
2.75 |
4.4 |
7.04 |
11.0 |
2.16 |
5.62 |
7.48 |
11.23 |
16.85 |
28.08 |
46.81 |
|
|
Air Test |
0.55+/-0.07 |
||||||||||||
Applicable temperature: -196 C degree to 550 C degree
Note: please choose different materials for different working conditions.
Application:
Common type: water, steam, oil, liquid gas, natural gas etc
Anti-sulphur type: gas oil etc which contains h2s, co composition.
We also have special treatment to ball, seat, stem for metal to metal application, such as hardface 13Cr overlay welded, stellite 6 welded, TSC, Ni60 coating, nitrided treatment and so on.