IBH-093 - Bohamet

86-005 Białe Błota –Ul. Toruńska 2 

CIELE k/Bydgoszczy, Polska 

tel.: +48 / 52 / 3203-905 e-mail: office@bohamet.pl 

fax: +48 / 52 / 3203-906 www.bohamet.pl 

INSTALLATION MANUAL FOR WATERTIGHT AND 

SPRAY-TIGHT SHIP DOORS 

PRODUCER: industrial plumbing, iron castings, ship equipment 

Date: 2010-10-28 

IBH-093 

Page: 1/10 

Notes: 

The shipyard usually follows its own instructions with regard to the division and sequence of 

installation procedures. The purpose of this document is to provide the necessary reference material. 

BOHAMET does not give any warranty with respect to installation performed by other companies using 

this manual. 

I . General comments: 

1. The so-called “clear opening” of the coaming BxH, subject to IT-16 tolerance, represents 

the functional size of the door. 

PRESSURE 

PRESSURE 

2. Transport the door from the warehouse to the installation site on a pallet. The door panel 

is additionally secured with steel tape to prevent door opening. Remove the tape before 

installation.






Steel 

tape 


3. Transport the door on the pallet on board using a crane. 


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4. When manually handling the door to the installation site, remember to set all the closing 

devices in the closed position in order to avoid uncontrolled door opening.







II. Before the installation: 


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1. Move the door on the pallet to the installation site using a crane and having previously 

checked the relevant item numbers. 

2. We recommend welding a lifting lug (made of Ø12 rod) to the upper section of the door 

panel, which will facilitate the door installation procedure. 

LIFTING LUG







3. Mark the opening dimensions (in accordance with the diagram). 


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4. The gap between the opening and the outside dimension of the door frame should 

amount to 2 mm on each side and should not exceed 3 mm for the curved sections. 

5. Cut out the opening acc. the marking, check the opening dimensions again, taking into 

account the +2 mm tolerance. Grind cutting-out surfaces with elastic grinding discs to 

remove burrs resulting from flame-cutting. 

ANGLE DOOR FRAME 

VERSION 

STRAIGHT DOOR FRAME 

VERSION








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6. Check the cut-out surfaces for rectilinearity and the door wall surface for flatness. 

Straighten out any deformities maintaining the 2 mm gap between the opening and the 

coaming. Check the coaming for flatness using a cross. The maximum admissible 

spacing between intersecting cords must not exceed 2 mm. 

D i a g o n a l 

D i a g o n a l







7. Disassemble the door by removing the hinge pins. DO NOT REMOVE THE PINS 

MARKED AS “PIN COMPLETE”. Remember the number of washers in each hinge – this 

will facilitate correct re-assembly. 


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III. Mounting the coaming in the wall. 

Put the coaming in the opening in the wall. Use wedges or spacers to ensure correct 

installation, bearing in mind to leave the required gap. 

1. The gap between the edge of the wall and the coaming surface should not exceed 2 mm. 

If the gap is larger, surface weld the edge of the wall to obtain appropriate gap. 

2. Weld the door frame in the wall in accordance with the diagram and starting from the 

inside. Tack welds must be made in the order specified in the drawing, maintaining a 

distance of 200 mm. Final welds (70 to 100 mm long) must be made in the order specified 

in the drawing until achieving a continuous weld along the whole frame. The number of 

tack welds and final welds depends on the size of the welded frames. 


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3. Once the welds are done, clean the welded areas and repair potential welding defects. 

4. Check the flatness of the coaming again, in accordance with item II.6. 

INSIDE 


Date: 2010-10-28 


TACK WELDS 

FINAL WELDS 

Page: 8/10






IV. Door installation: 


1. Place the door panel over the coaming. Mount all hinges, remember to place all washers. 

Do not use too much force when placing hinge pins (in order to ensure correct alignment 

of all hinge elements and appropriate door opening/closing). 

2. Check whether the door fits tight – use chalk. 

3. The door fitting force can be individually adjusted by adjusting the door seal tightness 

using the adjusting nuts on the pressure cams. The adjustment range is ±4 mm. 


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4. The door pressure can be individually adjusted with the use of adjusting nuts on the hinge 

pin. 

M20 NUT 

BOHAMET does not assume any liability for door installation conducted by the customer 

inconsistent with the instructions provided in this document.

IBH-093 - Bohamet

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