2016年6月30日星期四

Cast Steel Trunnion Mounted Ball Valves

Cast Steel Trunnion Mounted Ball Valves

Cast Steel Trunnion Mounted Ball Valves
• Upstream sealing, Self relieving seat
• Double block and bleed
• Fire safe design, Anti-static device, Blow-out proof stem
• Injection Port for seat & stem, Drain and Vent Ports
• 2-P or 3-Pc split body, Bolted Body
Cast Steel Trunnion Mounted Ball Valves
• Design - API 6D/ASME B16.34
• Face to Face - ASME B16.10/API 6D
• End to End - ASME B16.10/API 6D
• BW End - ASME B16.25
• Test - API 598/BS 6755
• Fire Safe Design - API 607/API 6FA
• Special - NACE MR-01-75

Cast Steel Trunnion Ball Valves Drawing


Material List of Cast Steel Trunnion Ball Valves
No.
Part Name
Carbon Steel
Stainless Steel
1
Body
A216 WCB
A351 CF8
A351 CF8M
2
Bonnet
A216 WCB
A351 CF8
A351 CF8M
3
Ball
A105+ENP
A182 F304
A182 F304M
4
Anti-fire packing
Graphite
Graphite
Graphite
5
Seat
PTFE/NYLON/MOLON/PEEK/PPL
6
Seat support ring
A105+ENP
A182 F304
A182 F304M
7
O-ring
VITON
VITON
VITON
8
Spring
17-7PH
17-7PH
17-7PH
9
O-ring
VITON
VITON
VITON
10
Anti-fire gasket
SS+Graphite
SS+Graphite
SS+Graphite
11
Hexagon nut
A194 2H
A194 8
A194 8M
12
Sealant injection valve
Combined parts
Combined parts
Combined parts
13
Check valve
Combined parts
Combined parts
Combined parts
14
Air release valve
Combined parts
Combined parts
Combined parts
15
Anti-static device
Combined parts
Combined parts
Combined parts
16
Stud
A193 B7
A320 B8
A320 B8M
17
Flat key
ANSI 1905
ANSI 1045
ANSI 1045
18
Stem
A182 F6a
17-4PH
17-4PH
19
Sliding bearing
Steel+PTFE
Steel+PTFE
Steel+PTFE
20
Thrust bearing
PTFE
PTFE
PTFE
21
O-ring
VITON
VITON
VITON
22
O-ring
VITON
VITON
VITON
23
Anti-fire gasket
SS+Graphite
SS+Graphite
SS+Graphite
24
Seal gland
A105+ENP
A182 F304
A182 F316
25
Screw
A193 B7
A320 B8
A320 B8M
26
Packing
Graphite
Graphite
Graphite
27
Packing gland
A182 F6a
A182 F6a
A182 F6a
28
Lower cover
A105+ENP
A182 F304
A182 F304
29
Stud
A193 B7
A320 B8
A320 B8M
30
Hexagon nut
A1942H
A194 8
A194 8M
31
Drain valve
Combined parts
Combined parts
Combined parts

Remarks
• Body Material: WCB, LCB, LCC, CF8, CF8M, CF3, CF3M, MONEL etc. 
• Seat Material: PTFE, Nylon, PEEK, PPL, Molon, Develon, Delrin, RPTFE 
• O-ring Seals: NBR, Viton A, Viton AED, EPDM, Viton B 
• Stem/Ball/Seat Ring: 304, A105+ENP, 17-4PH, 4140+ENP, 316, 304L, 316L, LF2+ENP, 13Cr/Hard Cr, F51 
• End Connection - Flange Ends/Butt Welding Ends

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