Q367F Fully Welded Ball Valve Overview

The Q367F Fully Welded Ball Valve is a trunnion-mounted ball valve featuring an integrally welded, permanent connection between the valve body and the pipeline. It is specifically engineered for long-distance pipelines, urban underground networks, and critical systems requiring zero external leakage. The valve body is fabricated from high-quality line pipe steel or carbon steel through fully welded construction, eliminating all removable flange connection points. Internally, it utilizes a fixed-ball (trunnion-mounted) design, typically employing metal hard seals or high-performance composite seals to achieve reliable 90-degree on/off operation through ball rotation.Designed and manufactured in compliance with long-distance pipeline standards such as API 6D, this valve offers exceptional structural strength and sealing integrity. It is suitable for conveying media such as natural gas, petroleum, and water supply, and is particularly well-suited for direct buried installation. As a core component, it ensures the long-term safe and reliable operation of pipeline networks.

Q367F Fully Welded Ball Valve Product Image

Q367F Fully Welded Ball Valve Features

1.  Fully Welded Leak-Free Structure: The valve body is integrally welded to the pipeline using matching materials, completely eliminating potential leak points associated with traditional flange and bolt connections. This achieves permanent sealing and provides extremely high safety.

2.  Buried Installation and Long Service Life Design: Specifically engineered for direct burial or harsh environments. Its compact external structure eliminates the need for valve chambers. The fully welded construction offers excellent corrosion and soil stress resistance, with a design life typically matching that of the pipeline.

3.  Stable High-Pressure Performance with Fixed Ball Design: Utilizes a trunnion-mounted (fixed) ball design, ensuring low operating torque and reliable sealing. The metal hard seal construction provides excellent resistance to high pressure and erosion, making it suitable for pigging operations (PIGGING).

4.  Online Maintenance and Monitoring: Typically equipped with grease injection systems for both the seat and stem. This allows for preventive maintenance or emergency sealing compensation by injecting dedicated sealant without interrupting pipeline operation.

5.  Low Maintenance and High Reliability: Under normal operating conditions, it requires virtually no maintenance, resulting in low operating costs. Its "install once, last a lifetime" characteristic makes it an irreplaceable component in long-distance pipelines and urban underground networks.