Apergy provides tubing retrievable gas lift valves designed for intermittent or continuous flow applications. We also offer a range of check valves designed to prevent back flow from the injection valve, which may damage the casing.
Our TP Series valves are tubing retrievable, spring loaded check valves with an NPT bottom connection. Used in conjunction with tubing retrievable injection valves that do not have an integral check valve, these valves provide casing protection from back flow through the injection valve.
Our WP Series Gas Lift Valves are retrievable, injection pressure operated valves with a nitrogen charged dome and bellows configuration.
For dual gas lift systems or applications with unstable injection pressure, our WF Series of spring-loaded, production pressure-operated valves are an excellent choice.