The same flapper-type valve used in Industrial Rubber's Flapper-Type Float Equipment is available as Insert Equipment. In addition, the same Flapper valve and pump-out orifice assembly used in Industrial Rubber's Automatic Fill-Up Equipment is also available as insert equipment. The insert unit is supplied with a tripping ball which seats on the pump-out orifice. A differential pressure of approximately 300 psi shears the lip of the orifice, allowing the tripping ball and orifice to fall down hole and the unit becomes operational as a flapper-type valve. Industrial Rubber's Insert Flapper Valve and Insert Automatic Fill-Up are available in the following sizes: