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Zhejiang Yinke Valve Co., Ltd.

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

Company DetailsCertificationsInspection & QualityTechnical Documents
Product Range

Top Entry Ball Valves

Top Entry Ball Valves provide direct access to internal components from the top of the valve body. Compare standard, cryogenic and metal-seated configurations by temperature, maintenance strategy and service severity.

Design OptionsService ConditionsRFQ Support
Selection Guide

How to choose the right top entry ball valve design.

Top entry construction is selected where in-line access to the ball, seats and stem can reduce maintenance downtime or simplify work on critical piping systems.

Selection is mainly driven by whether the service needs standard top-entry isolation, cryogenic stem extension or metal seating for high-temperature or severe media conditions.

Selection note

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

large top entry ball valve photographed in YINKE workshop
Large top-entry ball valve photographed in the workshop.
Top Entry Ball Valve Range

Top Entry Ball Valve Configurations

Choose by operating temperature, seat system, maintenance strategy and service conditions.

01 · Product Type

Top Entry Trunnion Ball Valve

A top entry trunnion ball valve combines fixed ball support with a top-opening body. It is selected where valve removal is difficult, line downtime is costly or maintenance strategy favors access to internal parts from above. Pressure class, body material and seat arrangement remain project-specific.

Best suited for: Critical process or pipeline lines where in-line access to the ball, seats and stem can reduce maintenance disruption.
In-Line MaintenanceTrunnion SupportCritical Service
View Top Entry Trunnion Ball Valve →
When to choose it

Choose this design when in-line trim access is a stronger requirement than the simpler side-entry body arrangement.

02 · Product Type

Cryogenic Top Entry Ball Valve

A cryogenic top entry ball valve combines top-entry access with an extended stem or bonnet arrangement that keeps packing away from the coldest zone. Material toughness, cavity pressure relief, thermal contraction and low-temperature seat/seal behavior must be reviewed together.

Best suited for: LNG and cryogenic lines where top-entry maintenance is required together with extended-stem low-temperature design.
LNG ServiceExtended StemLow Temperature
View Cryogenic Top Entry Ball Valve →
When to choose it

Choose this configuration when both cryogenic design and in-line maintenance are required.

03 · Product Type

Metal Seated Top Entry Ball Valve

A metal seated top entry ball valve uses hard-faced metal seats in a top-opening body. The design is useful when severe service makes soft seats unsuitable but maintenance strategy still favors in-line access. Coating system, leakage requirement, torque and thermal cycling must be defined in the RFQ.

Best suited for: Severe-service lines needing top-entry maintenance plus hard-faced metal seating for temperature, erosion or solids.
Top EntryMetal SeatSevere Service
View Metal Seated Top Entry Ball Valve →
When to choose it

Choose this design when severe-service seating and in-line trim access are both mandatory.

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

Top Entry Ball Valves Selection FAQ

How do I choose between the top entry ball valves shown on this page?

Start with the application and maintenance strategy. Selection is mainly driven by whether the service needs standard top-entry isolation, cryogenic stem extension or metal seating for high-temperature or severe media conditions. Then confirm size, pressure class, materials, seat design, end connection, actuation and project testing.

Are all top entry 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 top entry 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 top-entry ball valve photographed in the workshop.
Large top-entry ball valve photographed in the workshop.
High-pressure compact flanged ball valve with material and pressure markings visible.
High-pressure compact flanged ball valve with material and pressure markings visible.
Coated compact valves photographed as a finished batch.
Coated compact valves photographed as a finished batch.
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 →