Flowserve Advances Trunnion Mounted Ball Valves for High-Pressure Pipelines
As pipeline systems continue to operate at higher pressures and across longer distances, the demand for robust and reliable valve solutions is increasing. Flowserve has been at the forefront of this space, advancing trunnion mounted ball valve technology to meet the needs of high-pressure, high-integrity pipeline applications.
Trunnion ball valves are widely used in oil & gas, LNG, and energy infrastructure due to their ability to deliver consistent sealing performance, reduced operating torque, and enhanced stability under pressure. Flowserve’s continued development in this area reflects the growing importance of performance, compliance, and lifecycle reliability.
WHAT MAKES TRUNNION BALL VALVES DIFFERENT
Unlike floating ball valves, trunnion mounted designs support the ball with upper and lower trunnions. This prevents the ball from shifting under pressure and allows the seats to move towards the ball, creating a tight seal.
This design offers several key advantages in high-pressure environments. The supported ball reduces stress on valve components, while also lowering the torque required to operate the valve. In large diameter or high-pressure pipelines, this reduction in operating force is critical for actuator sizing and long-term reliability.
Flowserve’s designs build on these fundamentals, focusing on precision engineering and consistent sealing across a wide range of operating conditions.
HIGH-PRESSURE PERFORMANCE AND SEALING INTEGRITY
In pipeline applications, sealing integrity is everything. Even minor leakage can lead to safety risks, environmental issues, and costly downtime. Flowserve has enhanced its trunnion valve designs to deliver tight shut-off performance under extreme pressure conditions.
Key developments include improved seat designs, advanced sealing materials, and better control of tolerances during manufacturing. These features ensure that valves maintain performance even under pressure fluctuations, temperature changes, and demanding duty cycles.
For applications such as gas transmission and LNG systems, reliable sealing is not just a requirement — it is a critical safety function.
DOUBLE BLOCK AND BLEED FUNCTIONALITY
One of the major advantages of trunnion mounted ball valves is their ability to provide double block and bleed (DBB) functionality. This allows both upstream and downstream sealing, with a cavity that can be vented or monitored.
Flowserve’s solutions enhance this capability, enabling operators to isolate sections of a pipeline safely for maintenance or inspection. In high-pressure systems, DBB functionality reduces risk and improves operational safety by ensuring positive isolation and controlled pressure release.
COMPLIANCE WITH INDUSTRY STANDARDS
Flowserve’s trunnion mounted ball valves are designed to meet key industry standards, including API and fire-safe requirements. Compliance with these standards ensures valves can perform reliably in critical applications such as oil & gas, petrochemical processing, and energy infrastructure.
In addition to mechanical performance, there is growing emphasis on fugitive emissions control and environmental compliance. Flowserve incorporates sealing technologies that minimise emissions, supporting both regulatory requirements and sustainability goals.
APPLICATIONS ACROSS ENERGY AND PIPELINE SECTORS
Trunnion mounted ball valves are essential in a wide range of applications, including:
• Long-distance oil and gas transmission pipelines
• LNG processing and storage facilities
• Offshore and subsea installations
• Refining and petrochemical plants
In each of these environments, valves must withstand high pressures, temperature variations, and continuous operation. Flowserve’s advancements ensure that performance remains consistent across demanding and diverse conditions.
FOCUS ON LIFECYCLE RELIABILITY
Beyond initial performance, Flowserve’s development efforts are focused on long-term reliability. This includes improving resistance to wear, reducing maintenance requirements, and ensuring valves maintain performance over extended service periods.
By combining robust materials, precise engineering, and advanced sealing systems, Flowserve is helping operators reduce lifecycle costs. In large-scale pipeline projects, long-term reliability is a key factor in overall project success.
Flowserve’s advancements in trunnion mounted ball valve technology highlight the ongoing evolution of pipeline infrastructure. As systems become more demanding and expectations for safety and performance increase, valve technology must continue to adapt.
With improvements in sealing, pressure handling, and compliance, Flowserve is reinforcing the role of trunnion ball valves as a critical component in high-pressure pipeline systems. In modern energy infrastructure, valve performance is directly linked to system integrity, safety, and efficiency.
