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. detail 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

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. detail 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. detail 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. detail 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. detail 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.