GENERAL NOTES
DN25
1) FOR INFORMATION NOT SHOWN, REFER TO VESSEL DATA SHEET.
2) UNLESS OTHERWISE NOTED ATTACHMENTS WELDED TO THE VESSEL ARE
THE RESPONSIBILITY OF THE VESSEL VENDOR.
3) DAVIT ARM “E” SHALL BE SUCH THAT END SWING OVER LOAD TO BE
LIFTED ( SAFETY VALVE ETC.) OR EXTEND A MINIMUM OF 230 BEYOND
PLATFORM IN THE DESIGNATED LET-DOWN AREA, WHICHEVER IS GREATER.
4) DAVIT CAPACITY “W” IS THE MAXIMUM ALLOWABLE LIFTED WEIGHT
ALL DAVITS (EXPECT AS NOTED IN THE TABLE BELOW) SHALL BE DESIGNED FOR
A MAXIMUM “W” OF 450Kg.
5) LOAD “P” =2.25W THIS ALLOWS FOR A VERTICAL LOAD LINE PULL EQUAL TO
LIFTED WEIGHT+25%MPACT.
6) MATERIAL:
DAVIT:- GALVANISED CARBON STEEL UNLESS NOTED OTHERWISE.
VESSEL ATTACHMENTS:- SEE VESSEL DATA SHEET.
7) THE DISTANCE FROM STRUCTRUAL STEEL TO CENTRE OF DAVIT IS LIMITED
TO THE DEPTH OF THE BOTTOM DAVIT SUPPORT.
8) ALL DIMENSIONS IN MILLIMETERS UNLESS NOTED OTHERWISE.
9) FILL VENT HOLE WITH MASTIC AFTER WELDING.
11) THIS DRAWING IS TO BE CONSIDERED AS PRELIMINARY. ALL INFORMATION
IS TO BE CHECKED AND VERIFIED BY CALCULATION BY VESSEL VENDOR,
INCLUDING LOCAL STRESSES IN VESSEL SHELL/HEAD.
DAVIT PIPE DESIGN
(SEE NOTE 9)
(3600 MAX. FOR DN100 PIPE)
(5400 MAX. FOR DN150 PIPE)
DN100
(SEE NOTE 7)
PIPE SIZE & SCHEDULE
MAX. “W” (Kg)
DN100 SCHEDULE 40
350
MAX. P X E (Kg.m)
740
DN100 SCHEDULE 40
980
DN100 SCHEDULE 40
1960
DN100 SCHEDULE 40
2820
(SEE NOTE 3)
DAVIT GUIDE MOUNTED
ON PLATFORM MEMBER
GENERAL ARRANGEMENT AND
DETAILS OF DAVIT FOR COLUMNS
2000-3SD-MV00-M0019
1
19/04/11
0
31/3/11
ISSUED FOR FEED
ISSUED FOR APPROVAL
PP
PP
AKM SK
GSS TSB
SK
GSS TSB
SK
5636-STD-MD-B-029
1OF1
1