Stuffing box is designed to seal the wellhead operated by the sucker-rod pumps, to prevent oil leaks between the polished rod and the gland packing.
Fluid type: water, wellstream fluid from +5°С to +95°С; pressure - max 16.0 Mpa; density- 700-900 kg/m3 ; viscosity - max 50х10-6 м2/с.
Climate design of the stuffing box is UHL (moderate-cold), location category during operation is 1 according to GOST 15150-69 at the ambient temperature of -60oC to +40oC.
Gland is made of three types
1-special straight gland CC-NT-73-1
2-special gland with lateral branch CC-NT-73-2
3-special gland CC-NT-73-3
Parameters
Design
CC-NT-73-1
CC-NT-73-2
CC-NT-73-3
Overall dimensions, mm, max
- Height
- Width
675
200
756
Mass, kg, max
16.8
17.4
16
Operating pressure (with moving rod), MPa
4
Connecting thread
Tubing 73
Tubing 73,
Tubing 60
Diameter of sealed polished rod, mm
31.8
Mean time between failures, hours, min
3500
Life time, years
10