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Vervo forged steel valve

Description of Cast Steel Trunnion Ball Valves

Cast Steel Trunnion Ball Valves
VERVO steel ball valves are designed manufactured to provide maximum service life and dependability. All ball valves are full ported and meet the design requirements of American Petroleum Institute standard API 608&API 6D British standard and generally conform to American society of Mechanical Engineers standard ASME B16.34 valves are available in a complete range of body/bonnet materials and trims.

VERVO Material:

Structure of Cast Steel Trunnion Ball Valves

Cast Steel Trunnion Ball Valves
No Part Name Carbon steel 18Cr-9Ni-2Mo Carbon Steel
1 Body A216-WCB A351-CF8M A352-LCB
2 Bonnet A216-WCB A351-CF8M A352-LCB
3 Ball A182-F3041) A182-F316 A182-F3041)
4 Stem A276-304 A276-316 A276-304
5 Seat A105+ENP A182-F316 A350-LF2 + ENP
6 Seat Insert Glass Filled PTFE
7 Seat Spring A313-304 Inconel X-750 A313-304
8 Seat O-Ring NBR Viton Viton
9 Stem O-Ring NBR Viton Viton
10 Bonnet Gasket Graphite+3042) Graphite+31625 Graphite+30425
11 Bonnet O-Ring NBR Viton Viton
12 Antistatic Spring A313-304 A313-316 A313-304
13 Lower Cover A216-WCB A182-F316 A182-F304
14 Bonnet Stud A193-B7 A193-B8 A320-L7
15 Bonnet Stud Nut A194-2H A194-8 A194-4
16 Trunnion A276-304 A276-316 A276-304
17 Trunnion Bearing 304 +PTFE 316+PTFE 304+PTFE
18 Gland Flange A216-WCB A351-CF8M A352-LCB
19 Gland Boh A193-B7 A193-B8 A193-B7
20 Stop Plate Carbon Steel Carbon Steel+Zn Carbon Steel
21 Handle Carbon Steel

Data table of Cast Steel Trunnion Ball Valves

Features Specifications
Size: 2"-56" Design: API608,API6D,ISO17292,ASMEB16.34
Pressure Rating: Class 150-500 Face to Face: ASME B 16.10,API 6D
Three Piece Cast/Forged Steel Body End Flange: ASME B 16.5/BS EN1092/ASME 16.47
Trunnion,Full&Reduce Bore BWFIange: ASME B16.25
Anti-Static Device Pressure Temp: ASME 16.34
Blow-out Proof Stem Test: API598,ISO5208,API6D
Fire Safe Design Special : NACE MR-01-75
Low Emission  

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