【Practical Industrial Parts】The main feature of the DN40 1-1/2 ball valve is its compact size, easy operation and maintenance, and can withstand poor working conditions. This relatively new type of ball valve has some unique advantages in its structure, such as the frictionless switch, the seal is not easy to wear, and the opening and closing torque is small. 【Practical Industrial Parts】The main feature of the DN40 1-1/2 ball valve is its compact size, easy operation and maintenance, and can withstand poor working conditions. This relatively new type of ball valve has some unique advantages in its structure, such as the frictionless switch, the seal is not easy to wear, and the opening and closing torque is low. 【High Quality】 The full-bore ball valve has excellent internal thread and durable material. It is made of selected high-quality materials. It is durable and strong. It has a natural connection, smooth lines, simple structure, small size, light weight, and convenient