To equalize and isolated pressure to the lubricator with wireline still connected to tools in wellbore. This allows the operator to bleed off lubricator without releasing well gases into atmosphere and allowing access to wireline tools contained in lubricator.
- Pressure rating 5000 psi.
- Wireline Valves are nickle coated to resist corrosion.
- 4 ¾” TPI connections N.A.C.E spec.