HERCULES type double pack stuffing box for oilfield

Product Description The stuffing box is designed with two sealing structure with reasonable structure, convenient operation, reliable sealing. It has an automatic adjustment of the level of the axial center and automatically adjust the angle that allows the rod back and forth to run automatically adjust volume and pan angle to ensure the polished rod stuffing box with polished rod concentric, eccentric wear to avoid the phenomenon. Features Working Pressure: ≤1500psi Bottom