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Home›Valves by Design›Pressure Seal Valves

Valves by Bonnet Design

Pressure Seal Valves

This collection is for high-pressure and high-temperature applications where pressure seal bonnet construction is specified. Select gate, globe or check function, then review class, body material, end connection and inspection requirements.

Gate / Globe / CheckClass 600–2500WCB / WC6 / WC9 / C12A / CF8MRF / RTJ / BW
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Pressure Seal Valves product collection

Product Collections

Pressure Seal Valve Families

Choose the valve duty first. Each family page provides its own size range, standard references, materials and pressure-class links.

Buyer Selection Matrix

Pressure Seal Valve Selection Points

Service temperatureState design and operating temperatures because material and trim selection are service-dependent.
Pressure classThe current family pages cover Class 600, 900, 1500 and 2500.
Body materialExisting options include WCB, WC6, WC9, C12A and CF8M depending on the product family.
End connectionSpecify RF, RTJ or BW and the exact line-class requirements.
Inspection scopeConfirm test standard, NDE/PMI needs, material traceability, dimensional checks and documentation before production.

Selection Logic

Why the Valve Function Still Comes First

Pressure seal describes the bonnet construction, not the line function. A gate valve is selected mainly for isolation, a globe valve for shutoff or throttling, and a check valve for reverse-flow prevention. The pressure seal requirement is then combined with the correct valve function and pressure class.

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

Where Pressure Seal Valves Are Reviewed

These designs are typically considered for high-pressure steam, power generation and severe process piping. Final valve selection should be confirmed against the project design conditions, applicable design standard, material specification, operating cycle and approved drawings.

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 & ProductionQuality & CertificatesProject ReferencesSend RFQ

Buyer Questions

Pressure Seal Valves FAQ

Which pressure seal valve types are included?

This collection links to pressure seal gate, globe and check valve families.

Which pressure classes are shown?

The current pressure seal product pages are organized in Class 600, 900, 1500 and 2500.

What should I send with a pressure seal valve RFQ?

Send valve type, size, pressure class, body and trim material, end connection, service pressure/temperature, quantity, testing and documentation requirements.

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.

Need a Project Valve Quotation?

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

Send RFQ