The
Supply and Installation of Pipeline
Coupling Systems.
The Positive Seal Coupling system
is a high strength, cost effective
alternative to welding for joining
NPS 2" through 12" line
pipe. Originally developed for use
joining internally coated pipe - it
eliminates the need for internal girth
weld coating repair necessitated by
the coating weld burn - the coupling
is suitable for bare pipe as well.
Pipe wall thickness schedules up
to 160 and all API 5L "X"
Grades plus CRA line pipe can be accommodated.
Pipeline construction time is significantly
reduced and the Positive Seal connection
requires no x-ray or other post connection
inspection. Minimal pipe end preparation
is required.
There is no ID size restriction to
product flow or pigging operations,
no loss of pipe length during make-up
and no stress fatigue or cracking
of pipe ends.
The Positive Seal Coupling connection
has 100% pressure, stress and load
capability under ANSI/ASME Piping
codes B31.3, B31.4, B31.8 and under
CAN/CSA - Z183, Z184, and complies
with the requirement of U.S. Department
of Transportation 49 CFR Parts 192
and 195.
Positive Seal Coupling System is
a press-on mechanical metal-to-metal
interference fit and features a coupling
with finely machined internal serrations.
The tapered interference internal
surface of the coupling is machined
smaller than the OD of the line pipe
it is designed to join. This controlled
interference fit, in conjunction with
the serrations on the internal surface
of the coupling, produces a connection
that exceeds the minimum yield specification
of the pipe itself.
1. POSITIVE SEAL COUPLING
SYSTEM EQUIPMENTS
FJU (Field Joining Unit) – this is
a portable unit with it’s own hydraulic
power source. The unit holds in place
the pipe end that is to be inserted,
then presses the pipe end into the
coupling using hydraulic rams and
clamping slips.
FAFPC FJU Models
 |
FJU
12186, FJU 12286 & FJU 12386
– Used for sizes 6-IN NPS X 0.375”
WT thru 12 –IN NPS X 0.250” WT |
|
FJU
10146 & FJU 10246* – Used
for sizes 4-IN NPS thru 10–IN
NPS x 0.365”WT
*Newly purchased, Delivery to
Dammam by Jan. ‘08. |
|
FJU
8280** – Used for sizes 2-IN NPS
thru 6–IN NPS x 0.280”WT |
|
FJU
8240** – Used for sizes 2-IN NPS
thru 4–IN NPS |
1.2 FAFPC HPU (Hydraulic
Power Unit)
Diesel Powered Engine unit directly
coupled to a high-speed pump to supply
required hydraulic oil flow rate of
the Field Joining Unit.
|
HPU
1- 6829 for FJU 12186 |
|
HPU
1-6135 for FJU 12286 |
|
HPU
2-6135 for FJU 12386 |
|
HPU
1-5035 for FJU 10146 |
|
HPU
1- 6826**
for FJU 8280 |
|
HPU
456-3**
for FJU 8240 |
Note:
** Equipment
rented from Jetair International –
a Division of MITI |
