Forged Trunnion Ball Valve
Forged Trunnion Ball Valve is selected for higher-pressure and high-integrity projects where forged pressure-containing parts are specified by the project or piping class. 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.
Forged Trunnion Ball Valve for industrial valve projects.
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.
When to select this design
Higher-pressure and high-integrity projects where forged pressure-containing parts are specified by the project or piping class.
Choose forged construction when the material specification or pressure class requires forged pressure-containing parts rather than cast bodies.
Typical applications
- High-pressure gas
- Compressor stations
- High-integrity isolation
- RTJ / BW piping systems
Forged Trunnion Ball Valve: design points to confirm.
This is a specific valve construction. Final size, class, material and seat combinations depend on the approved datasheet and design calculation.
| Body construction | Forged trunnion valves use forged pressure-containing body components rather than a cast body. Multi-piece forged construction is often specified for high-pressure projects and can be combined with side-entry or other trunnion architectures. |
|---|---|
| Seat & sealing | SPE or DPE soft-seat systems are common for clean hydrocarbon service, while PEEK or metal seating may be considered as pressure-temperature duty becomes more demanding. |
| End connection | RTJ and butt-weld ends are common on Class 900, 1500 and 2500 forged pipeline valves, although RF ends may be used where the piping class permits. |
| Engineering focus | Forged construction does not remove the need to check pressure-temperature rating, seat load, cavity relief, bolting stress and actuator torque. High class valves need especially careful torque and seat design review. |
| Material selection | A105N, LF2, F316, duplex and other forgings may be specified depending on temperature, corrosion and project material class. Heat treatment, impact testing, NDE and traceability requirements should be stated clearly. |
| Testing & inspection | High-pressure forged valves often carry stricter project inspection requirements. Define forging NDE, PMI, hydrostatic testing, seat leakage acceptance, fire-safe/emissions and final documentation. |
Engineering considerations for Forged Trunnion Ball Valve.
Construction and maintenance
Forged trunnion valves use forged pressure-containing body components rather than a cast body. Multi-piece forged construction is often specified for high-pressure projects and can be combined with side-entry or other trunnion architectures.
Seat, sealing and torque
SPE or DPE soft-seat systems are common for clean hydrocarbon service, while PEEK or metal seating may be considered as pressure-temperature duty becomes more demanding.
Piping and installation
RTJ and butt-weld ends are common on Class 900, 1500 and 2500 forged pipeline valves, although RF ends may be used where the piping class permits.
What to verify before approving the technical offer.
Engineering risk
Forged construction does not remove the need to check pressure-temperature rating, seat load, cavity relief, bolting stress and actuator torque. High class valves need especially careful torque and seat design review.
Materials and traceability
A105N, LF2, F316, duplex and other forgings may be specified depending on temperature, corrosion and project material class. Heat treatment, impact testing, NDE and traceability requirements should be stated clearly.
Inspection and testing
High-pressure forged valves often carry stricter project inspection requirements. Define forging NDE, PMI, hydrostatic testing, seat leakage acceptance, fire-safe/emissions and final documentation.
Send the valve datasheet together with the piping class and project valve, material, testing and coating specifications. Missing design inputs should be clarified rather than assumed.
Other Trunnion Mounted Ball Valves configurations.
Compare related designs by construction, pressure class, temperature range and service conditions.
Choose side entry when broad pipeline applicability and conventional workshop maintenance are more important than in-line top access.
Compare Side Entry Trunnion Ball Valve →Choose metal seating when temperature, erosion or solids make PTFE, nylon or similar soft seats unsuitable.
Compare Metal Seated Trunnion Ball Valve →Return to the Trunnion Mounted Ball Valves range to compare all configurations.
Back to Trunnion Mounted Ball Valves Range →Continue the technical selection.
Use these pages to check pressure class, material, standard and end-connection requirements against this valve design.
Forged Trunnion Ball Valve FAQ
What is a 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.
Where is a forged trunnion ball valve commonly used?
Typical applications include High-pressure gas, Compressor stations, High-integrity isolation, RTJ / BW piping systems. Final suitability depends on the actual service medium, pressure, temperature and project specification.
What information is needed to quote a forged trunnion ball valve?
Provide size, quantity, pressure class, body and trim materials, seat material, end connection, design pressure and temperature, media, operation, design standard, fire-safe/emission requirements, testing, coating and documentation scope.
How is a forged trunnion ball valve different from other trunnion mounted ball valve designs?
Choose forged construction when the material specification or pressure class requires forged pressure-containing parts rather than cast bodies.
Technical documents for project review.
For technical evaluation, request the applicable product documents and inspection records for the offered valve configuration.
Product Photos
Additional finished-valve, nameplate and component photos are available for the selected valve configuration.
GA Drawing / Datasheet
GA drawings and datasheets are prepared for the selected size, pressure class and valve configuration.
Testing & Inspection Records
Inspection documentation can include pressure testing, dimensional inspection, PMI, NDE/NDT and coating records as required by the project.