Stuffing box

Stuffing box

Stuffing box is used for wellhead sealing.

Application

Sealing of polished rod in wellhead setup during oil production using SRP.

Advantages

Double sealing allows to replace cups and repair stuffing box without well killing;
Corrosion- and temperature-resistant modifications;
Modification with shutoff valve to prevent wellhead depressurization;
Self-aligning head is available to reduce wear of cups and increase stuffing box runlife;

Benefits

Improved SRP non-stop operation;
Elimination of wellhead depressurization;

Order reference

SB-25-32-14
25 (2 7/8”) – tubing ID
32 (1.25) – polished rod OD
14 – working pressure with idle BPU

Technical specification

Operating pressure with running BPU, MPa (Psi):
4 (580)
Operating pressure with idle BPU, MPa (Psi):
14 (2030); 21 (3045)
Polished rod OD, inch (mm):
1.25 (32); 1.5 (38); 1.65 (42)
Radial movement of stuffing box axis, inch (mm):
0.47 (12)
Stuffing box tilt angle (taking into account radial movement), degree:
5
Temperature properties, °F (°C):
-140 up to +572 (-60 up to +300)