What Are The Basic Performances Of Welded Ball Valves?

The pipeline transportation system occupies an important position in the transportation of energy fluids such as natural gas, coal, oil, water, and chemical solvents. It is said that more than 90% of the natural gas in the country is transported by pipeline systems, and valve control is an important component of the pipeline system. So, what basic performance does 2 Piece Ball Valve need? The following is an introduction.

1. Zero-level sealing

The sealing requirements of welded ball valves, order valves, butterfly valves, and stop valves must be zero-level, so as to ensure the effective cutoff of the downstream of the pipeline. If there are metal particles in the transported liquid medium, it may affect the sealing effect of the valve. The valve seal has the difference between primary seal and secondary seal. The former is metal-to-metal seal, and the latter is metal-to-rubber or PTFE material. If the seal fails or the medium leaks during the medium transportation, the emergency seal should be used to control the loss to the minimum.

2. Fire prevention and anti-static

The fire prevention and anti-static design of the welded ball valve should also be the best, otherwise once a fire causes external leakage and internal leakage, the loss is secondary. If there is a problem with the pipeline transportation system of the natural gas or chemical plant, there is still a great safety hazard. When the ball of a welded ball valve is clamped by non-metallic materials, static electricity is likely to occur, so the ball must be connected to the valve body. If you are conveying corrosive chemical media fluids, you should choose a welded ball valve made of anti-corrosion materials.

In addition, welded ball valves also have basic properties such as temperature difference resistance, pressure resistance, and wear resistance. The quality and performance of welded ball valves are directly related to their manufacturing materials and production technology. Therefore, when purchasing a welded ball valve, it is a top priority to find a reliable manufacturer.