Ball valve is a manual one that use in liquid, suction and hot gas lines. When the ball is fully open, it would be reach maximum flow, but on the contrary, when it fully closed, the tightness is best. The the range of the working temperature is very wide.

This product have two kinds, one is stand, the other is with a testing valve.
The size is 1/4 to 3-1/8 inch or 6mm to 79mm, all of valve have fixed hole with screw, is used on the panel.
The feature,
1. No pressure decline when the medium is flow
2. The valve is designed to prevent the inner liquid loading.