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API 6D Ball Valves

Use this API 6D collection to choose the ball valve construction before selecting pressure class and materials. Compare trunnion mounted, floating and fully welded designs based on line size, pressure, maintenance strategy, end connection and project specification.

API 6DFloating / Trunnion / Fully WeldedClass 150–2500RF / RTJ / BW / SW / NPT

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Product Collections

API 6D Ball Valve Designs

Choose the body and ball-support design that fits the line requirements. Then open the product page for pressure-class and material details.

API 6D TRUNNION BALL VALVES

Trunnion Mounted

API 6D Trunnion Ball Valves

Large-bore and higher-pressure pipeline isolation with trunnion-supported ball construction.

2–48 in · Class 150–2500

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API 6D FLOATING BALL VALVES

Floating Ball

API 6D Floating Ball Valves

Compact ball valve construction for smaller sizes and lower class ranges shown on this site.

1/2–8 in · Class 150–600

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API 6D FULLY WELDED BALL VALVES

Fully Welded Body

API 6D Fully Welded Ball Valves

Welded body construction for buried, transmission and low-maintenance pipeline applications.

2–48 in · Class 150–1500

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Buyer Selection Matrix

How to Choose an API 6D Ball Valve Family

Large bore / higher class	Start with the trunnion ball valve family and confirm seat design, cavity relief and operator requirements.
Smaller size / compact construction	Review the floating ball valve family within its published size and class range.
Buried or welded pipeline concept	Review fully welded construction and confirm end preparation, stem extension and site installation requirements.
Seat and sealing system	State soft or metal seat needs, seal material, fire-safe requirements and any sour-service requirements in the RFQ.
Operation and accessories	Confirm lever, gear or actuator, plus stem extension, locking, position indication and project accessories where required.

Selection Logic

Select the Construction Before the Detailed Seat Design

For API 6D ball valves, the first useful decision is usually the valve construction: floating, trunnion mounted or fully welded. After that, engineering can confirm seat design, sealing materials, cavity relief philosophy, fire testing, operator and project-specific inspection requirements.

Valve type and line function

Size and pressure class

Body and trim material

End connection / facing

Service pressure and temperature

Testing, inspection and documents

Project Application

Pipeline and Process RFQ Data

A complete inquiry should identify line size, pressure class, body material, ball/seat/trim requirements, RF/RTJ/BW/SW/NPT end connection as applicable, operation, service fluid, design temperature, quantity and the required inspection/document package.

For final selection, use the project valve specification, piping material class, approved datasheet and service conditions as the controlling documents.

Factory & Quality Evidence

Review Supplier Evidence Before PO

Buyers can review YINKE VALVE factory information, quality certificates, sample inspection records and project references before technical and commercial confirmation.

Factory & Production Quality & Certificates Project References Send RFQ

Buyer Questions

API 6D Ball Valves FAQ

Which API 6D ball valve designs are included?

This collection links to trunnion, floating and fully welded ball valve families.

Which family covers the widest pressure range on this site?

The trunnion ball valve family is currently shown from Class 150 through Class 2500.

Should I specify seat design in the RFQ?

Yes. For project ball valves, seat material and seat philosophy can be critical. Include soft/metal seat requirements and any project rules for sealing, fire-safe or sour service.

RFQ Checklist

Information to Send for Review

Valve type / design standard

Nominal size and pressure class

Body, trim and seat materials

End connection and facing

Operation / actuator if required

Fluid, pressure and temperature

Quantity and delivery requirement

ITP, testing and document scope

Technical data is confirmed against the final quotation, approved drawings and project specification.

Double Block and Bleed Valve Options

Double Block & Bleed Valves and Trunnion Mounted DBB Valves for API 6D pipeline isolation, SPE/DPE seat selection and cavity-pressure management.

Need a Project Valve Quotation?

Send the valve list, datasheet or piping specification for technical and commercial review.

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