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Zhejiang Yinke Valve Co., Ltd.

Certified manufacturing location: Yongjia County, Wenzhou City, Zhejiang Province, China

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Product Range

Trunnion Mounted Ball Valves

Trunnion Mounted Ball Valves are available in several constructions for pipeline, large-bore and high-pressure isolation. Compare the designs below by body construction, pressure class, temperature, media and maintenance requirements.

Design OptionsService ConditionsRFQ Support
Selection Guide

How to choose the right trunnion mounted ball valve design.

Trunnion mounted ball valves support the ball on fixed trunnions so seat movement provides the primary sealing action. They are widely used for larger sizes, higher pressure classes and pipeline isolation.

Selection is mainly driven by body construction, pressure class, maintenance access, temperature and media severity.

Selection note

Compare the configurations below, then open the relevant product for detailed design, materials, end connections, testing and RFQ requirements.

finished trunnion mounted ball valves staged in YINKE factory
Finished trunnion ball valves staged together in the workshop.
Trunnion Ball Valve Range

Trunnion Ball Valve Configurations

Choose by body construction, pressure class, temperature range, media severity and maintenance requirements.

01 · Product Type

Side Entry Trunnion Ball Valve

A side-entry trunnion ball valve is the standard pipeline configuration for many API 6D applications. The body is assembled from the side and can be supplied in 2-piece or 3-piece construction, full or reduced bore, with SPE or DPE seats and RF, RTJ or butt-weld ends.

Best suited for: Pipeline transmission and high-pressure isolation where conventional body access and broad size/class coverage are required.
API 6DSPE / DPERF / RTJ / BW
View Side Entry Trunnion Ball Valve →
When to choose it

Choose side entry when broad pipeline applicability and conventional workshop maintenance are more important than in-line top access.

02 · Product Type

Forged Trunnion Ball Valve

A forged trunnion ball valve uses forged body components such as A105N, LF2 or stainless/duplex forgings depending on the service. Forged construction is frequently specified for Class 900, Class 1500 and Class 2500 duties, RTJ or butt-weld piping and projects that place tight controls on material integrity and traceability.

Best suited for: Higher-pressure and high-integrity projects where forged pressure-containing parts are specified by the project or piping class.
Forged BodyClass 900–2500RTJ / BW
View Forged Trunnion Ball Valve →
When to choose it

Choose forged construction when the material specification or pressure class requires forged pressure-containing parts rather than cast bodies.

03 · Product Type

Metal Seated Trunnion Ball Valve

A metal seated trunnion ball valve replaces the primary soft seat interface with hard-faced metal seating surfaces. Ball and seat coatings or overlays are selected around temperature, solids content, erosion risk and leakage requirement. Actuator torque and thermal effects require more attention than on a soft-seated valve.

Best suited for: High-temperature, abrasive or erosive service where soft seats cannot provide reliable life or temperature capability.
Hard-Faced SeatHigh TemperatureSevere Service
View Metal Seated Trunnion Ball Valve →
When to choose it

Choose metal seating when temperature, erosion or solids make PTFE, nylon or similar soft seats unsuitable.

Before You Request a Quote

Information to confirm before requesting a quote.

Select the valve configuration first. Final quotation still depends on the complete datasheet and project specifications.

Which product construction fits the service?
What size and pressure class are required?
What body, trim, seat and seal materials are specified?
RF, RTJ, BW, SW or threaded ends?
Soft seat or metal seat?
Manual, gear, pneumatic, electric or hydraulic operation?
Fire-safe, emissions or sour-service requirements?
Inspection, coating and documentation scope?
FAQ

Trunnion Mounted Ball Valves Selection FAQ

How do I choose between the trunnion mounted ball valves shown on this page?

Start with the application and maintenance strategy. Selection is mainly driven by body construction, pressure class, maintenance access, temperature and media severity. Then confirm size, pressure class, materials, seat design, end connection, actuation and project testing.

Are all trunnion mounted ball valves the same design?

No. The designs share the same valve family but differ in body construction, service condition or installation purpose. Each important configuration has its own technical product information.

What should I send for a trunnion mounted ball valve quotation?

Send valve size and quantity, pressure class, body/trim/seat materials, end connection, design pressure and temperature, media, operation, applicable standards, inspection, coating and documentation requirements.

Manufactured Valve Examples

Manufactured valve examples from this range.

The photos below show representative valves from our workshop. Final configuration is defined by the approved datasheet and project specifications.

Large-bore trunnion ball valve photographed during production.
Large-bore trunnion ball valve photographed during production.
Finished trunnion ball valves staged together in the workshop.
Finished trunnion ball valves staged together in the workshop.
Batch of trunnion ball valves staged together.
Batch of trunnion ball valves staged together.
Technical Documents & Quality Records

Technical documents for project review.

For technical evaluation, request the applicable product documents and inspection records for the offered valve configuration.

Product Evidence

Product Photos

Additional finished-valve, nameplate and component photos are available for the selected valve configuration.

Request additional product images.
Engineering PDF

GA Drawing / Datasheet

GA drawings and datasheets are prepared for the selected size, pressure class and valve configuration.

Request the applicable GA drawing or datasheet.
Inspection Record

Testing & Inspection Records

Inspection documentation can include pressure testing, dimensional inspection, PMI, NDE/NDT and coating records as required by the project.

Specify the required inspection records in your RFQ.

Send us your ball valve datasheet.

We review valve design, pressure class, materials, seat system, end connection, operation, testing and project documentation before quotation.

Request Technical Review →