Hub IS-190 Iran Shir

Valve is a quadrilateral valve whose current blocking member is a perforated sphere that revolves around a vertical axis toward the flow direction of the fluid flow. When the hole is located along the flow, the valve is open and when the hole is perpendicular to the flow path, the valve is closed. When the milk handle is in line with the path, the valve is open and when the handle is perpendicular to the flow path indicates the valve is closed. These valves are very durable and are very reliable even after long use. These properties have made these valves in many applications over the gate and spherical valves. The excellent properties of hub valves have made these valves in widespread industrial applications and used for stress of up to 1000 times and temperatures up to 400 ° C. One of the flaws of the ball valves is that they can trap the fluid in the middle chamber, and if the fluid is not discharged, it can cause the body to crack in the frost. & nbsp;