Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB · A216 WCB · SMD Flow Control Valve Engineering

Size: DN1050 (42")
Rating: Class 600 / PN100
Temp: -46°C to +250°C
Design: API 6D

API 6D

Ball Valves

Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB

Q: What seat options are available for sour (H2S) service?

When the data sheet invokes NACE MR0175 / ISO 15156, body, trim, bolting and springs are selected against the stated H2S partial pressure and temperature. Soft seats (PEEK, Devlon) or metal seats (Stellite overlay) and Inconel X-750 springs are quoted to that service; they are not a default claim for every SKU.

Q: How is cavity pressure relief handled for double block and bleed?

API 6D trunnion valves can be specified with self-relieving seats (SPE) or double-piston-effect seats (DPE) plus a body bleed. Self-relieving seats vent excess cavity pressure to the line side when cavity pressure typically approaches about 1.33 times the rated pressure; DPE seats hold both directions and need a separate cavity-relief arrangement. Seat type is confirmed on the order.

Q: Which documentation is included in a standard EPC MDR package?

When specified: approved GA drawing, EN 10204 3.1 material certificates, hydrostatic/pneumatic test records to the applicable test standard, NDE reports required by the ITP, coating records if painted, and the ITP release note. CAD/STEP models and bilingual datasheets are issued after size, class and trim are frozen — they are not generic public downloads.

Q: Which design and test standards apply to the Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB?

Design reference: API 6D. Face-to-face: ASME B16.10. Pressure test / inspection: API 6D / API 598. NACE, fire-safe or fugitive-emission clauses are quoted only when the purchase specification requires them.

Summary

Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB is designed for quarter-turn isolation in oil and gas, chemical and process piping. trunnion-mounted construction is intended for high-integrity pipeline isolation; flanged ends support bolted pipeline integration and inspection access. Carbon-steel pressure parts suit general hydrocarbon and utility service when corrosion allowance and coating are defined on the data sheet. Typical duties include oil & gas, chemical processing, general industrial service. Confirm end connection, trim, actuation and inspection scope against the approved project data sheet.

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Features

Product features

Trunnion Ball Valve design
Bubble-tight soft-seat sealing
Two-piece body construction

Advantages

Selection advantages

Select NPS and pressure class inside the published catalogue envelope; freeze the working size on the data sheet before GA release.
Design basis and face-to-face follow the standards shown in the technical grid; do not assume a single standard covers every option.

Plant application

Family plant duties. This SKU still uses the size, class, materials and tests listed on this page.

Oil & gas isolation / ESD

Function: Pipeline and process isolation. ESD packages only when the actuator, controls and SIL requirement are specified on the order.
Medium family: Hydrocarbons, produced water or injection gas — composition confirmed on the datasheet.
Pressure & temperature: Class, temperature and ends follow the approved piping class. Site capability is Class 150–2500; the listed SKU size still governs.
Applicable standards: API 6D / API 608 / ASME B16.34. NACE MR0175 / ISO 15156 and fire-safe API 607 / 6FA only when specified.
Send with RFQ: Size, class, bore, body/trim, ends, operation, medium, temperature, NACE/fire-safe flags, ITP and MTR level.

Related application

Refining & petrochemical isolation

Function: Unit isolation. Not a substitute for a control valve on continuous throttling duty.
Medium family: Process hydrocarbons, steam and utilities. Soft seat vs metal seat follows medium and temperature.
Pressure & temperature: Pressure-temperature rating per ASME B16.34 / piping class. Shell and seat tests per API 598 or the project ITP.
Applicable standards: API 6D / ASME B16.34 / API 598. Project specification controls trim and leakage class.
Send with RFQ: Piping class, medium, temperature, seat type, ends, operation and inspection documents required.

Related application

LNG / low-temperature service (when specified)

Function: Cold-box or LNG isolation with extended bonnet when the project requires it.
Medium family: LNG, LPG or other low-temperature hydrocarbons listed on the datasheet.
Pressure & temperature: Cryogenic test temperature and soak procedure confirmed against the project specification. Do not assume −196 °C for every ball valve.
Applicable standards: BS 6364 or the project cryogenic procedure only when specified.
Send with RFQ: Minimum design temperature, extended-bonnet need, test procedure, material and documentation list.

Related application

Engineering hub

Technical data

Design & test

Design	API 6D
Face-to-face	ASME B16.10
Testing	API 6D / API 598
Testing	API 598 / ISO 5208 to the class stated on the ITP
Connection	RF

Parts and materials

Material	A216 WCB
Connection	RF

Trunnion Ball Valve design
Bubble-tight soft-seat sealing
Two-piece body construction

Product FAQ

Engineering answers

How does a 2-piece split body trunnion compare with a 3-piece bolted body for pipeline maintenance?

A 2-piece split body has one fewer body joint than a 3-piece bolted design, which reduces a potential leak path and is common on buried or high-pressure pipeline isolation. A 3-piece body can simplify centre-section removal where the line must stay in place. Selection follows layout, class and access on the data sheet.

What seat options are available for sour (H2S) service?

When the data sheet invokes NACE MR0175 / ISO 15156, body, trim, bolting and springs are selected against the stated H2S partial pressure and temperature. Soft seats (PEEK, Devlon) or metal seats (Stellite overlay) and Inconel X-750 springs are quoted to that service; they are not a default claim for every SKU.

How is cavity pressure relief handled for double block and bleed?

API 6D trunnion valves can be specified with self-relieving seats (SPE) or double-piston-effect seats (DPE) plus a body bleed. Self-relieving seats vent excess cavity pressure to the line side when cavity pressure typically approaches about 1.33 times the rated pressure; DPE seats hold both directions and need a separate cavity-relief arrangement. Seat type is confirmed on the order.

What size and pressure range is the Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB supplied in?

This listing is DN1050 (42"), Class 600 / PN100. Confirm the final NPS, class, bore and trim against the approved data sheet.

Which documentation is included in a standard EPC MDR package?

When specified: approved GA drawing, EN 10204 3.1 material certificates, hydrostatic/pneumatic test records to the applicable test standard, NDE reports required by the ITP, coating records if painted, and the ITP release note. CAD/STEP models and bilingual datasheets are issued after size, class and trim are frozen — they are not generic public downloads.

Which design and test standards apply to the Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB?

Design reference: API 6D. Face-to-face: ASME B16.10. Pressure test / inspection: API 6D / API 598. NACE, fire-safe or fugitive-emission clauses are quoted only when the purchase specification requires them.

Project engineering

Need a custom bore, CRA overlay, or actuator sizing?

Request quote / 3D

Ball Valves

Cast Steel Trunnion Ball Valve, API 6D, WCB, 42 Inch, 600 LB

Product features

Selection advantages

Plant application

Oil & gas isolation / ESD

Refining & petrochemical isolation

LNG / low-temperature service (when specified)

Technical data

Design & test

Parts and materials

Dimensions

Inspection, MTC and ITP

Engineering answers

Need a custom bore, CRA overlay, or actuator sizing?

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