The ball of the floating ball valve is suspended. Under the pressure of the medium, the ball will move and press against the outlet side of the seal. The floating ball valve is only widely used for medium and low-pressure conditions because the pressure of the medium completely transfers the ball weight to the seal at the outlet. For the same reason, the design of the floating ball valve should focus on whether the material of the sealing ring can withstand the load of the ball and medium. Dvsvalve supply different types of floating ball valve, including bronze floating ball valve,forged steel ball valve and other customized valves.

Features:

1. Floating ball valve has the smallest flow resistance among all types of valves; when the full-bore ball valve is open, the ball channel, body channel and connection pipe are of the same diameter, so the media can flow without loss.

2. Quarter-turn to open and close the valve fully, quickly; Floating ball valve also has the advantage of being smaller, lighter and easier to install in piping than gate and globe valves with the same specifications.

3. Floating ball valves have locking devices in both fully open and fully closed positions to prevent misoperation of the valve and to ensure the correct position of the valve.

4. The float valve has an anti-blowout stem, which is installed from the bottom to prevent the stem from blowout out of pressure. The design also will form metal contact with the valve body to ensure the seal of the stem when it catches fire.

In short, the floating ball valve has a valve wedge that is a ball with a round hole. It can be rotated from 0 degrees to 90 degrees around axis of the stem, which is driven by the lever, for opening and closing functions.

Floating ball valve also has a compact construction that opens and closes quickly, which helps to regulate the flow of media in the pipe by rotating 90 degrees and finally closing the valve. It‘s  size of the path is of the same diameter as the pipe’s, but boats low flow resistance and high flowing capacity. The stem that mounted from the bottom ensures safe use of the valve.

As we all know that the valve body like carbon steel (WCB, WCC, LCB, LF2, A105), stainless steel (SS304, SS316, F304L, F316L), hastelloy (Alloy 20) etc., or even in the trim material always use metallic materials.

Most of the corrosion of metallic materials occurs in the atmosphere, which contains corrosive components and corrosive factors such as oxygen, humidity, temperature changes and pollutants. Salt spray corrosion is a common and most destructive atmospheric corrosion.

The salt spray test is divided into two categories, one is the natural environmental exposure test, and the other is the artificial accelerated simulated salt spray environmental test. The artificial simulated salt spray environment test uses a test equipment with a certain volume space, the salt spray test chamber, to artificially use the salt spray environment in the volume space to assess the salt spray corrosion resistance quality of the product.

Compared with the natural environment, the salt concentration of the chloride in the salt spray environment canbe several times or dozens of times that of the salt spray content of the general natural environment, so that the corrosion rate is greatly improved, and the product is subjected to a salt spray test to obtain a result. The time is also greatly shortened. If a product sample is tested in a natural exposure environment, it may take 1 year to corrode, and in a simulated salt spray environment, as long as 24 hours, similar results can be obtained.