Ship’s mooring and towing fittings –Pedestal fairleads

ISO 13776:2012

Materials

Pedestal:weldable steel plate having a yield point of not less than 235N/mm2.

Manufacturing and inspection

All surfaces of the pedestal fairleads,including welding,shall be free from any visible flaws or imperfections.
All surfaces in contact with the ropes shall be free from surface roughness or irregularities likely to cause damage to the ropes by abrasion.
The pedestal fairleads shall be coated externally with an anti-corrosion protective finish.
Nominal Size Dn D1 D2 de h h1 t1 t2 t3 Welding leg lengtha
Type A and B Type C Z1 Z2
150 220 230 71.5 81.5 200 100 16 10 16 8 5
200 288 300 93.5 102.5 200 100 20 12 20 10 6
250 357 370 113.5 119.5 200 100 22 12.5 22 11 6
300 417 430 128.5 130.5 225 125 24 13 24 12 6.5
350 472 490 145.5 152.5 225 125 26 17 26 15 8.5
400 540 560 154.5 164.5 250 150 28 18 28 17 9
450 600 620 167.5 179.5 250 150 30 20 30 20 10
500 655 680 178.5 195.5 250 150 32 22 34 23 11
Nominal Size Dn SWLc Calculated weightd (kg) (for reference only)
Θb=90° θ=0°
(KN) (t) (KN) (t) H=500 H=1000 H=1500
150 265 27 186 19 55 115 198
200 441 45 314 32 86 169 278
250 579 59 412 42 113 210 335
300 726 74 510 52 145 256 395
350 1040 106 736 75 201 358 552
400 1246 127 883 90 255 436 657
450 1599 163 1128 115 314 530 791
500 1942 198 1373 140 383 636 938
a Welding with chamfering is available based on the same welding volume/strength.
b θis the relative angle of ropes on the pedestal fairlead(refer to Annex A)
c The SWL is the maximum applicable rope tension based 90°(θ=90°)and 180°(θ=0°)deflection of rope direction by the pedestal fairlead.
The SWLs shown in this table are for reference only. These are based on the loading as mentioned in Annex A.
The “SWL” may be adjusted depending on the actual loading conditions,and the actual marking shall be agreed between the user and the manufacturer.
d The calculated weight is for reference excluding the steel roller on the pedestal fairlead.
e d shall be decided depending on the type of steel roller (Type A and B or Type C),as specified in ISO 13755