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Forged Steel Trunnion Mounted Ball Valve

1. Product Overview

Forged steel 3 piece trunnion mounted ball valve

Forged steel trunnion mounted ball valves, 3 piece split body, side entry, gear operated or bare stem with ISO 5211 mounting pad, full bore or reduced bore.

 

The forged steel trunnion mounted ball valve manufactured by Metals Valve is 3-piece split body and side entry. This series of valves are designed conforming to almost the same standards and codes as that of cast steel trunnion mounted ball valves. The 3-piece body refers to left/right closure parts and the mid body which are all made from forgings. Compared to its cast counterpart, the forged steel body and closure parts eliminate the inevitable defects of casting and drastically improve the microstructure as well as mechanical properties.

2. Design features and material selection

Design standards: API 6D, API 608, BS 5351, ISO 14313, ASME B16.34; Fire safe to API 607, BS 5146, ISO 10497, API 6FA; End connection: ASME B16.5, ASME B16.25, ASME B16.11; Face to face: ASME B16.10; Inspection and test: API 598, API 6D, EN 12266-1. The forged steel trunnion mounted ball valve is available in either full port(FB) or reduced port(RB), 3 piece split body and side entry, lever/gear or actuator operated. Generally, sizes above 4″ are furnished with 4 of supporting legs. Serial No.: FTBV12. See the technical drawing and dimensions of FTBV12.

Design Features(≤ 4 inch)

design features of forged steel 3 pc trunnion mounted ball valve 4" & smaller

Design features of forged steel 3 piece trunnion mounted ball valve, 4″ and smaller sizes, side entry.

(1) Double sealing O-rings to prevent leakage from stem area.
(2) T-shaped blow-out proof stem design.
(3) Fire safe metal to metal design for emergency seals once soft seating materials are disintegrated after fire.
(4) Gasket & O-ring combined arrangement to prevent leakage from body joints.
(5) Seat spring to exert force on the seat to ensure a tight sealing even at low line pressure.

Material Selection(≤ 4 inch)

3D elplosive view of forged steel 3 piece trunnion mounted ball valve

The 3D explosive view of a forged steel 3 piece trunnion mounted ball valve (for 4″ and smaller sizes).

ItemPart NameStandard MaterialStainless SteelLow-Temp Service
1BodyASTM A105NASTM A182 F316ASTM A350 LF2
2Body ClosureASTM A105NASTM A182 F316ASTM A350 LF2
3BallASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
4SeatingSee 5 & 6See 5 & 6See 5 & 6
5Seat InsertPTFE/ NYLON/ PEEKPTFE/ NYLON/ PEEKPTFE/ NYLON/ PEEK
6Seat RingASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
7StemASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
8TrunnionASTM A182 F6aASTM A182 F316ASTM A182 F6a
9GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
10GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
11GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
12GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
13Fire-Safe SealSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
14Top FlangeASTM A105NASTM A182 F316ASTM A350 LF2
15Cover FlangeASTM A105NASTM A182 F316ASTM A350 LF2
16Thrust WasherPTFEPTFEPTFE
17Bearing316SS+PTFE+MoS2316SS+PTFE+MoS2316SS+PTFE+MoS2
18Bearing316SS+PTFE316SS+PTFE316SS+PTFE
19CoverASTM A105NASTM A182 F316ASTM A350 LF2
20PinCarbon SteelStainless SteelCarbon Steel
21PinCarbon SteelStainless SteelCarbon Steel
22Anti-Static DeviceSS304SS304SS304
23SpringInconel X-750Inconel X-750Inconel X-750
24O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
25O-RingNBRNBRNBR
26O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
27O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
28O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
29O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
30Vent ValveStainless SteelStainless SteelStainless Steel
31Body StudASTM A193 B7ASTM A193 B8ASTM A320 L7M
32Body NutASTM A194 2HASTM A194 8ASTM A194 7M
33ScrewASTM A193 B7ASTM A193 B8ASTM A320 L7M
34Body StudASTM A193 B7ASTM A193 B8ASTM A320 L7M
35Body NutASTM A194 2HASTM A194 8ASTM A194 7M
36ScrewASTM A193 B7ASTM A193 B8ASTM A320 L7M
The material selection table for forged steel trunnion mounted ball valve, 3 piece split body, side entry, for sizes 4" and smaller. Other materials are available upon request.

Design Features(> 4 inch)

Design features forged steel 3 piece trunnion mounted ball valve above 4in.

Design features of forged steel 3 piece trunnion mounted ball valve, side entry, for sizes above 4″.

(1) Double sealing O-rings to prevent leakage from stem area.
(2) & (4) Sealant injection fittings to prevent stem or seat leakage in case the internal sealing fails.
(3) T-shaped blow-out proof stem design.
(5) Fire safe metal to metal design for emergency seals once soft seating materials are disintegrated after fire.
(6) Gasket & O-ring combined arrangement to prevent leakage from body joints.
(7) Preloaded seat spring to exert force on the seat to ensure a tight sealing even at low line pressure.

Material Selection(> 4 inch)

3D explosive of forged steel 3 piece trunnion mounted ball valve for 4" above

The 3D explosive view of forged steel 3 piece trunnion mounted ball valve, side entry with supporting legs, for sizes above 4″.

ItemPart NameStandard MaterialStainless SteelLow-Temp Service
1BodyASTM A105NASTM A182 F316ASTM A350 LF2
2Body CapASTM A105NASTM A182 F316ASTM A350 LF2
3BallASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
4SeatingSee 5 & 6See 5 & 6See 5 & 6
5Seat InsertPTFE/ NYLON/ PEEKPTFE/ NYLON/ PEEKPTFE/ NYLON/ PEEK
6Seat RingASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
7StemASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
8Cover FlangeASTM A105NASTM A182 F316ASTM A350 LF2
9Top FlangeASTM A105NASTM A182 F316ASTM A350 LF2
10Trunnion SupportASTM A588 B+ENPASTM A351 CF3MASTM A588 B+ENP
11Support LegsCarbon SteelCarbon SteelCarbon Steel
12Lifting LugsCarbon SteelCarbon SteelCarbon Steel
13Thrust WasherPTFEPTFEPTFE
14Thrust WasherPTFEPTFEPTFE
15BearingSS316 + PTFESS316 + PTFESS316 + PTFE
16BearingSS316 + PTFE + MoS2SS316 + PTFE + MoS2SS316 + PTFE + MoS2
17Seat FollowerASTM A105N+ENPASTM A182 F316ASTM A350 LF2+ENP
18GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
19GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
20GasketSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
21Fire Safe SealSS316 + GraphiteSS316 + GraphiteSS316 + Graphite
22O-RingNBRNBRNBR
23O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
24O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
25O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
26O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
27O-RingHNBR/ VITONHNBR/ VITONHNBR/ VITON
28PinStainless SteelStainless SteelStainless Steel
29PinStainless SteelStainless SteelStainless Steel
30PinStainless SteelStainless SteelStainless Steel
31PinStainless SteelStainless SteelStainless Steel
32Anti-Static DeviceSS301SS301SS301
33KeyStainless SteelStainless SteelStainless Steel
34SpringInconel X-750Inconel X-750Inconel X-750
35Body StudASTM A193 B7ASTM A193 B8ASTM A320 L7M
36Body NutASTm A194 2HASTM A194 8ASTM A194 7M
37ScrewASTM A193 B7ASTM A193 B8ASTM A320 L7M
38ScrewASTM A193 B7ASTM A193 B8ASTM A320 L7M
39Vent ValveStainless SteelStainless SteelStainless Steel
40Drain PlugStainless SteelStainless SteelStainless Steel
41Injection FittingStainless SteelStainless SteelStainless Steel
42Injection FittingStainless SteelStainless SteelStainless Steel
The material selection table for forged steel trunnion mounted ball valve, 3 piece split body, side entry, for sizes above 4" with supporting legs. Other materials are available upon request.

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Trunnion Mounted Ball Valve

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