Standing Valves & Seating Nipples

Standing Valves are normally used in intermitting or chamber lift wells in the bottom of the tubing or chamber. The standing valve seals the nipple bore to prevent the fluid from flowing back into well bore when high pressure gas is injected under a slug of fluid. This valve can be equalized or retrieved by wireline. This valve may also be used as a test plug for testing tubing for pressure leakage above the valve.