info@welcovalve.com
TEL: 86-577-67279881
FAX: 86-577-67279880
+86-15067717767
Skype: welcovalve
3-pc forged steel ball valve is three piece body design, bolted structure, this is our main product with the most competitive price and nice quality.
Main 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, gas over oil etc.
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
Material Specifications
Body/Cap: A105, A350 LF2, A182 F304, A182 F316, A182 F304L, A182 F316L
Ball: A105+ENP, A350 LF2+ENP, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a
Stem/trunnion: A105+ENP, A350 LF2+ENP, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a
Seat retainer: A105+ENP, A350 LF2+ENP, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a
Seat ring: PTFE/RPTFE/NYLON/PEEK
O-ring: VITON, PTFE, NBR
Contact spring: 17-7PH/Inconel X750/304/316
Bolt: A193 B7, A193 B7M, A193 B8, A193 B8M etc
Nut: A194 2H, A194 2HM, A194 8, A194 8M etc
Bearing: SF-1, 304/PTFE
Note: for ball, stem and seat retainer, we have special treatment on them if being requested for metal to metal application, such as hardface 13Cr overlay welded, stellite 6 welded, TSC, Ni60 coating, nitriding treatment.
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• ANSI Class 150 : 2" to 56"
• ANSI Class 300 : 2" to 56"
• ANSI Class 600 : 2" to 56"
• ANSI Class 900 : 2" to 36"
• ANSI Class 1500 : 2" to 24"
• ANSI Class 2500 : 2" to 16"
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Technical Specification |
ANSI Class (Lbs) |
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|
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
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|
Test Pressure (MPA) |
Shell Test |
2.94 |
7.67 |
10.2 |
15.3 |
22.98 |
38.3 |
63.83 |
|
Seal Test |
2.16 |
5.62 |
7.48 |
11.23 |
16.85 |
28.08 |
46.81 |
|
|
Air Test |
0.55+/-0.07 |
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Applicable temperature: -196 C degree to 600 C degree
Note: please choose different materials for different working conditions.