Flush mounted ball valve Bex Komponent

Bex LA - Flush Mounted Ball Valves

LA valves are designed to be used on suspended fluids in the pulp and paper industry. The vave is aimed to meet some basic demands.

In sampling applications it must deliver a tru part of the main flow.
In drainage applications there must be no risk of clogging.
Installed the valve must not cause any heavy dynamic stress to the pipe or the wel
To meet the demands the fluid ahead of the ball must continuously be renewed. The ball must in practice be a part of the pipe wall. The flow ahead of the ball must also be turbulent and at very low velocity the fluid must be mobile. The design of the weld-on flange that is thin and with a conical entrance facing the ball ensure the function.

In drainage applications the fluid can be standing in front of the ball. The fluid can not be allowed to dewater into the valve body as normal for a ball valve. Fibers that get wedged between the ball and the upper seat ring can initiate a clogging problem. Of this reason the LA valve will always have a cavity filler around the ball.

La valves are designed to add as low weight as possible to the pipe wall and the welding. The weld-on flange is thin has a low weight and is easy to handle. The valve body will add a low weight to the weld-on flange and the center of gravity will be close to the pipe wall. The dynamic stress on the pipe and the welding will be low.

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