Fully Welded Trunnion-mounted Ball Valve

Naishi Trunnion Mounted Ball Valve is a high-performance valve featuring a compact structure, excellent sealing capability, and long service life. It is widely used in city gas distribution, district heating systems, petroleum, natural gas, water treatment, and various industrial pipelines. With an all-welded, integral body design, it eliminates the risk of external leakage and allows for direct underground installation, significantly reducing construction and maintenance costs. Manufactured from high-strength materials with precision machining, the valve ensures reliable performance under demanding conditions, making it especially suitable for long-distance pipelines and harsh environments.

Key Features of Trunnion Mounted Ball Valve

      One-piece welded body ensures zero external leakage.

      Compact design with superior aesthetics and long service life (15+ years under normal use).

      High-precision ball machining ensures smooth operation and minimal torque.

      High-strength sealing structure: RPTFE seats reinforced with 20% carbon for excellent sealing performance.

      Excellent pressure and temperature adaptability, with no leakage under rated conditions.

      Buried installation capable: requires only shallow valve boxes, reducing construction cost and time.

      Customizable stem height and body length to suit pipeline layout.

Applications of Fully Welded Trunnion-mounted Ball Valves

Fully Welded Trunnion-mounted Ball Valves are used in various industries that require safe, efficient, and reliable fluid control.

         Heating Systems: Used to control the flow of heating fluids in residential, commercial, and industrial heating systems.
         District Heating: These valves are integral in district heating networks, ensuring secure and reliable fluid control for large-scale heating applications.
         Oil & Gas: In the oil and gas industry, these valves are used for the safe transportation of hydrocarbons under high pressure.
         Chemical Processing: Ideal for handling aggressive chemicals in pipelines where resistance to corrosion and leakage is crucial.
         Water Treatment: Used in water treatment facilities to ensure the proper flow of water and other fluids, ensuring consistent operations.

Advantages of Fully Welded Trunnion-mounted Ball Valves

1. Leak-free Performance
The fully welded body construction provides superior sealing, ensuring that these valves are completely leak-proof, even under high-pressure and high-temperature conditions. This eliminates the risk of external leakage, which is critical for safety in industrial settings.

2. Enhanced Durability and Reliability
The trunnion-mounted design provides better stability and resistance to wear, significantly extending the life of the valve. This design is particularly important in applications with high pressure and demanding operating conditions.

3. Reduced Maintenance Costs
The robust construction of Fully Welded Trunnion-mounted Ball Valves minimizes the risk of failure and reduces the need for frequent maintenance or replacement, offering a cost-effective solution for industries that require high-performance valves.

4. Versatility in Operation
The availability of multiple operation modes (manual, pneumatic, electric) makes these valves adaptable to a wide range of systems, offering flexibility and efficiency in controlling fluid flow.

5. High Performance in Extreme Conditions
With a broad range of pressure and temperature ratings, these valves are suitable for harsh environments and critical applications, providing reliable operation across a wide array of industrial systems.

Naishi Fully Welded Trunnion Mounted Ball Valve offer exceptional performance, reliability, and versatility for a wide range of applications, from city gas distribution to industrial pipelines. Their all-welded design eliminates external leakage risks, reduces installation and maintenance costs, and ensures long-lasting performance even in harsh environments. With customizable features and high-strength materials, our valves provide optimal sealing, smooth operation, and adaptability under extreme pressure and temperature conditions. At Zhejiang Naishi Valve Co., Ltd., we are committed to delivering tailor-made valve solutions that meet the specific needs of each industry, ensuring efficiency, safety, and durability in every application.