Abstract: A weir valve is disclosed with a solid ceramic weir insert. Optional ceramic pieces are used to line the bore and bonnet opening to protect the exposed inner surfaces of the valve body from fluid in the valve.
Abstract: Valves having a straight bore are fitted with a structurally discrete cylindrical ceramic liners. An additional ceramic insert may be inserted in the interior of the bonnet. The ceramic liner and ceramic insert protect the interior of the valve from abrasive and corrosive fluids flowing through the valve.