Bulkheads
The following installation instructions are provided to answer frequently asked questions
regarding the assembly of PROMARINE® fire protection bulkheads.
B15 RATED BULKHEAD
It is not possible to cover every installation scenario on every type of ship. We have
based this example on a ‘B15’ rated partition, using 19.1mm thick PROMARINE®-640 bonded
both sides with .030" or 0.8mm thick high pressure laminates.
|
Detail 1 - Top and Bottom Channels
The first step on any installation is the ‘marking off’ of the
positions of the bulkhead or partition. This is usually done with a chalk line
marked on the deck. Bottom channels (PC-15-E) are then cut to length and
positioned on this line.  Bottom channels can be secured to the deck by either
tack welding or attached using self tapping screws, dependant on deck surface
material. Top channels (PC-17-G) can then be marked off and attached to the
deck head or overhead stiffeners, again by either tack welding or self tapping
screws. Great care must be taken to align top and bottom channels. Use of
‘plumb lines’ and/or ‘spirit levels’ is only recommended if the vessel is in
drydock.
|
Detail 2 - Panel Insertion
PROMARINE®-640 panels can now be trimmed to the correct length
and width and inserted into the top and bottom channels by following the simple
procedure indicated on Detail 2.
|
Detail 3 - ‘C’ Spline Joint
‘C’ spline (PJ-1-A) joints provide a clean decorative panel surface with no exposed profiles between
panels. Only the seam can be seen after installation.
 Panels are supplied with grooves cut into the long edges, together with the necessary
‘C’ splines. The ‘C’ splines should be supplied by Custom Plastics to insure the correct fit.
Starting at a corner, panels are simply pushed together as shown, ensuring that the flat side
of the ‘C’ spline is facing the decorative side of the panels.
|
Detail 4 - Omega Joint
Omega joints (RJ-28-S, RJ-29-US or RJ-29-S) are used
in complex areas and where panels may have to be removed from time to time.  This method allows an individual panel to be removed
without disturbing the adjacent panel. The omegas should be trimmed to the
required length and loosely screwed together and inserted between the panels as
shown. As with the ‘C’ spline, starting at a corner, panels are pushed together
into the omegas, and the screws tightened until a tight fit is achieved.
|
Detail 5 - Corners
Panel runs usually terminate at either ‘T’ junctions or corners,
and are accommodated by using internal angles (PA-30-B) and external angles
(PA-50-B) where appropriate. Both profiles are simply screwed to the panels as
shown. For angles other than 90°, PA-5-B and PA-10-B equal angles are used,
although the enclosed angle must be specified. An aesthetic alternative to
steel corners would be to employ postformed elements – details available on
request.
|
Detail 6 - Cover Strips
The system is complete when the cover strips are introduced to
‘hide’ profiles.  Omegas are concealed with PV-03 or PV-04 cover
strips, or highlighted with a PS-24 insert. PA-30-B internal angles are covered
with PV-05 cover strips and PA-50-B external angles are concealed with PV-06
cover strips. All cover strips are simply pushed into position and available in
white or beige.
|