TUG/BARGE COUPLER APPLICATION INFORMATION
Intercon ATB couplers are available in a range of sizes allowing efficient and safe matching of tugs and barges. Tug characteristics - displacement and length, in particular - are the primary data needed for connection load analysis, and coupler selection. The chart shown here displays the approximate application range of Intercon coupler systems.
INTERCON COUPLER NOMINAL DATA
| MODEL AND RAM DIAMETER |
INCH |
34 |
50 |
64 |
72 |
| APPROXIMATE PERFORMANCE |
|
|
|
|
|
| ENGAGED FORCE - GENERATED |
LBS |
200,000 |
300,000 |
300,000 |
300,000 |
| TRAVEL RATE |
IPM |
46 |
145 |
106 |
106 |
| |
|
|
|
|
|
| INSTALLED ENVELOPE MINIMUMS (TUG) |
|
|
|
|
|
| BEAM |
FT |
27 |
32 |
36 |
41 |
| HEIGHT |
FT |
8 |
8 |
8 |
10 |
| BOW TO STERN |
FT |
8 |
12 |
12 |
12 |
| APPROXIMATE INSTALLED WEIGHT |
LBS |
100,000 |
225,000 |
325,000 |
400,000 |
A portion of the installed weight replaces side shell and bulkheads on the vessels.
Intercon Couplers can be customized for various types of service. There are three basic connection styles which incorporate different interface configurations between the ram head assemblies (helmets) and the barge's ladder surfaces.
- The tooth type connection is standard, and provides a fixed connection between the vessels. It is used where lightering is not required.
- The tooth/friction type of connection provides the fixed tooth performance, but also allows for lightering by rotating the helmet 90 degrees in calm water and reconnecting utilizing a smooth friction interface. Sea state restrictions apply to the friction mode.
- The "wave" type of connection provides secure unrestricted service, while allowing lightering operations without complete disconnection from the barge. This connection style requires Intercon's "C-Drive" actuation and ram design.
Two types of coupler drives are offered. The multi-motor style incorporates a high speed motor for rapid ram travel, and a low speed motor to develop high engagement forces at a slower travel. The C-Drive style incorporates one electric motor for rapid travel which provides initial engagement. Hydraulic pressure then develops high engagement forces. Both types of drive provide mechanical engagement which keeps the vessels connected even if power is lost.
Intercon welcomes your inquiry regarding the type of connection and drive that would best serve your ATB mission. Application analysis, coupler sizing, and model testing support, if needed, are provided by Intercon's Engineering Department.