ISO 13776 Pedestal Fairlead

As with other components of a vessel, the ISO 13776 Pedestal Fairlead stems from an intellectual design process and is produced within the framework of International Standards Organization (ISO) rules on mooring accessories. This through-deck fairlead facilitates the significant reduction in frictional forces when a vessel’s lines are pulled through sheaves on the upper rollers by providing rotary slipping connections that reduce wear.

ISO 13776 Pedestal Fairlead can easily be mounted onto decks or mooring buoys and also comprises vertical cylindrical supports to ensure stability while rotatable rollers regulate line movement, thus serving as a fairlead. Its application extends aloof deck and quay vessels both in commercial shipping as well as offshore industries including global maritime facility hubs.

As a leading marine equipment supplier in China, Boomarine offers a wide range of types of fairleads and can provide tailor-made solutions for each customer. In addition to the ISO 13776 standard, we also offer other certifications such as ABS, BV or DNV, which can give you additional peace of mind.

Dimensions of ISO 13776 Pedestal Fairlead

Key Structures

1. top plate
2. body
3. reinforcement
4. rope guide
5. steel roller (IS0 13755 steel rollers)
a. Height is to be determined in accordance with actual mooring rope height through the pedestal fairlead.
b. Diameter ∅D, is to be calculated depending on the height of the pedestal, H [D₃= D₂ + 2 x (H – t₁) x tan 10°]
c. SWL marking
d. Seam

Table 1—Dimensions of ISO 13766 pedestal fairleads
Dimensions in millimetres
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

Table 2—Dimensions (continued) and SWL of ISO 13766 pedestal fairleads
Dimensions  in  millimetres
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  θ is the relative angle of the ropes on the pedestal fairlead (refer to Annex A). c The”SWL” which is marked on the fitting is the maximum applicable rope tension based on a 90° (θ=90°) and a 180° (θ=0°) deflections of the rope direction by the pedestal fairlead. The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Annex A. The“SWL” which is marked on the fitting may be adjusted depending on the actual loading conditions of mooring rope under the agreement between the user and the manufacturer. d The calculated weight (mass)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.

Features of ISO 13776 Pedestal Fairlead:

• Classification Society Certification: Classification certificates from major classification societies such as ABS, BV, CCS, DNV, LR, NK, KR, IRS, RS and RINA are available to ensure quality and compliance.
• Robust construction: It has a good strength and service life fortitude because it is composed by weldable steel plates made with a yield point of not less than 235 N/mm².
• Rugged line sheaves and mooring wins efficiency: Operational safety, wear on mooring lines, winches, and other equipment can be improved through the use of high-quality rollers or pulleys.
• 360° rotation function (optional): Rotatable rollers or bases that permit multi-directional rope adjustment are available to some models, providing the 360° rotation function as an extra option.
• Corrosion protection: Prevailing harsh weather condition protection is provided in the form of durable external coatings which reinforce protection against severe corrosion.

Applications of ISO 13776 Pedestal Fairlead:

• Commercial vessels: Cargo ships, tankers, bulk carriers and container ships.
• Passenger ships: Cruise ships and ferries.
• Offshore vessels: Supply vessels, auxiliary handling vessels (AHTS) and offshore platforms.
• Naval vessels: Various naval vessels that require reliable mooring solutions.
• Tugboats and barges: For towing and push-pull operations.

Why Select Our 13776 Pedestal Fairlead?

1. Increased safety: Guarantees effective control of mooring lines, minimizes the likelihood of line damage, and enhances the safety of personnel during mooring operations.
2. Increased efficiency: Enhanced smoothing and speed for processes involving mooring improves overall operational efficiency.
3. Reduced maintenance costs: Safeguards excessive wear on serviceable mooring lines, replacing serviced components results in decreased costs.
4. Harsh offshore operating environments are withstanding: Endures harsh working conditions while providing long-term reliability and low maintenance expenses.
5. Compliance and assurance: The quality is assured through compliance with ISO 13776 standards and classification society certification guaranteeing its performance.

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