API 6A Double Expanding Gate Valve

Expanding Gate Valves consists of one gate body and a related gate segment. The valve seat can be lubricated by grease injection fittings to reduce wear and extend service life. The contact surface
of them is designed to milled V structure.  API 6A Expanding Gate Valves are available in sizes 2-1/16" through
4-1/16". working pressure of 2000 PSI through 5000 PSI. The system achieves its positive seal capacity by mechanically expanding the gate and segment against the seats due to the thrust exerted by the stem. During the valve stroke, this unique design resists expansion of the gate, allowing it to slide, avoiding wear of seats and gate. Valves are pluggable in the fully open position and generate pressure drop across the valve equal to the internal diameter of the connecting pipe. Material selection is fully customizable to meet customers' project specifications.