A fully welded regulating ball valve is a valve with a full welding structure, which controls fluid flow by rotating the ball. Its core feature lies in the fact that all the valve body components are connected by welding, avoiding the risk of leakage caused by traditional threaded or flanged connections, significantly enhancing the sealing and structural strength.

Structural Features

The fully welded regulating ball valve is composed of components such as the ball core, valve seat, flow passage tube, and valve stem, with critical parts precision machined for stability. The optimized body design reduces flow resistance and enhances flow control accuracy. All components being welded as one eliminates external leakage points, making it particularly suitable for high-pressure, high-temperature, or corrosive medium applications.

Sealing and Pressure Resistance Properties

The sealing structure employs a combination of carbonized Teflon rings and disc springs, accommodating pressure and temperature fluctuations without slipping within the rated range. The valve seat and ball are sealed in a metal-to-metal manner, offering high resistance to wear and corrosion, as well as reliable sealing. Some domestic models have achieved localization through technical upgrades, breaking the reliance on imports.

Application Scenario

Primarily used for fluid control in industrial pipelines for oil, chemical, power, and environmental protection industries, including long-distance oil and gas pipelines, coal gasification units, and urban gas supply systems. Its quick opening and closing feature (can be fully open/closed by rotating 90 degrees) and compact structure are suitable for space-limited environments.