What is a ball valve?

Ball Valve is the quarter-turn valve of which the opening and closing member (ball) is driven by the valve stem and rotates around the axis of the ball valve.

What are the ball valve types?

In terms of valve structure, we have floating ball valve and trunnion-mounted ball valve. The ball inside the floating ball valve is free to float. In contrast, the trunnion ball is fixed and its seat is moving to seal the vale. Compared to floating ball valve, trunnion-mounted ball valve could be applied to higher pressure and larger size.

From the body arrangement, ball valves can be classified into top entry ball valve and side entry ball valve. Not like side entry type, top entry ball valve could be maintained inline, not necessary to remove the valve from the pipeline. But in the current market, the side entry ball valve has more demand.

There are many ways to classify ball valves. From driving mode, we have electric ball valve, pneumatic ball valve and also manual ball valve. From sealing type, we have metal-to-metal sealing ball valve & soft seal ball valve. From manufacturing method, there are forged ball valve and casted ball valve. From material, there are stainless steel ball valve, carbon steel ball valve and etc.

What are advantages of ball valve?

Ball valves are widely used in different industrial fields. Its main advantages lie in:
1.The fluid resistance is small, and its resistance coefficient is equal to the pipe length of the same length.
2.The structure is simple, small in size and light in weight.
3.It is compact and reliable, and the sealing surface material of the ball valve is widely used in plastics and has good sealing properties.
4.The operation is convenient and rapid. The rotation is 90° from full opening to full closing, which is convenient for long-distance control.
5.The maintenance is convenient. The ball valve has a simple structure, and movable sealing ring and ball make the disassembly and replacement relatively easier.
6.Wide range of applications, from a few millimeters, up to a few meters, from high vacuum to high pressure.

Ball valve is one of our strength products in dvsvalve. We own a wide range of ball valves with stable and high quality. You could search on our website to find ball valves you want.