Wellhead stuffing box SU 4-73-31 is designed to seal the polished rod of wells operated by sucker rod pumps.
Distinctive features of this design of the wellhead seal are the use of rubber-fabric cuffs with an increased service life.
|Maximum working pressure, MPa (kg / cm²):|
|when the pumping unit is working||
|when the pumping unit is inoperative||
|Polished rod diameter, mm||
|Overall dimensions, mm||