ISO 13795-2012 Marine Double Bollard Type B

ISO 13795-2012 Marine Double Bollard Type B

Introduction:

There are two kinds of marine bollard in the standard ISO 13795, type A and Type B. Type A with compact base plate, type B with wide base plate.

Advantages:

ISO 13795-2012 is a standard that sets out the requirements and dimensions for double bollards used in the marine industry. Double bollards are commonly used in ship mooring systems to secure a vessel to a pier or quay. The following are some of the advantages of using ISO 13795-2012 Marine Double Bollard Type B:

1. Standardization: The ISO 13795-2012 standard ensures that all double bollards of Type B are manufactured to a consistent standard. This means that they have the same dimensions, strength, and performance characteristics, making them interchangeable and easy to use.

2. Safety: The standard sets out requirements for the strength and durability of double bollards, ensuring that they can withstand the forces and stresses of mooring a vessel. This enhances safety for both the vessel and the crew during mooring operations.

3. Versatility: Double bollards of Type B can be used in a variety of mooring configurations, making them suitable for a wide range of vessels and docking situations. They are also designed to be used in pairs, providing increased flexibility in the placement of mooring lines.

4. Durability: Double bollards of Type B are made from high-quality materials, such as steel or cast iron, that are resistant to corrosion and wear. This ensures that they have a long service life and require minimal maintenance over time.

5. Ease of installation: The standard provides clear guidance on the installation of double bollards of Type B, making them easy to install and ensuring that they are installed correctly. This reduces the risk of accidents or damage to the vessel during the installation process.

Overall, the use of ISO 13795-2012 Marine Double Bollard Type B offers numerous benefits for the marine industry, including standardization, safety, versatility, durability, and ease of installation.

Parameters of ISO 13795-2012 Marine Double Bollard Type B:

Nominal Size Dn	D1	D2	H1	H2	h1	h2	b	L	L1	E	t	t1	t2	R
150	165.2	185	320	80	62	70	225	400	670	145	8.0	8	6	40
200	216.3	240	365	85	67	70	290	500	860	160	8.0	8	6	50
250A	267.4	290	470	100	79	90	360	630	1065	215	12.0	11	8	60
250B	267.4	290	470	100	79	90	360	630	1065	215	10.0	8	7	60
300A	318.5	340	575	125	95	110	430	800	1300	325	21.5	20	9	70
300B	318.5	340	575	125	95	110	430	800	1300	325	12.0	9	9	70
350A	355.6	380	655	145	108	130	480	890	1475	360	26.0	23.5	11	80
350B	355.6	380	655	145	119	130	480	890	1475	360	14.0	13	9	80
400A	406.4	430	705	160	121	145	550	1000	1630	400	28.0	26	13	85
400B	406.4	430	705	160	133	145	550	1000	1630	400	15.0	13.5	11	85
450A	457.2	480	745	170	131	160	620	1100	1810	430	29.0	26	14	90
450B	457.2	480	745	170	144	160	620	1100	1810	430	14.5	13	11	90
500A	508.0	530	790	190	146	200	690	1250	2040	500	32.0	29	16	100
500B	508.0	530	790	190	162	200	690	1250	2040	500	14.5	13	11	100
550A	558.8	580	840	210	167	200	750	1380	2240	560	31.0	28	16	110
550B	558.8	580	840	210	176	200	750	1380	2240	560	21.0	19	11	110
600	609.4	630	875	225	182	200	820	1550	2490	660	33.0	28	16	120

SWL of ISO 13795-2012 Marine Double Bollard Type B:

Nominal Size	Welding leg length				SWL						Calculated weight
					For mooring purposes (Figure-of-eight belay)				For towing purposes (eye splice)
Dn	z1	z2	z3	z4	One-rope use		Two-rope use
					(kN)	(t)	(kN)	(t)	(kN)	(t)	(kg)
150	3	3	6	4	54	5.5	49	5.0	540	10	45
200	3	3	6	4	82	8.4	65	6.7	795	13	68
250A	4	4.5	8	6	156	16	134	14	1736	27	150
250B	3	3.5	6	4	127	13	108	11	216	22	119
300A	4	8	12	10	332	34	306	31	4365	62	383
300B	4	5	8	6	186	19	161	16	353	36	203
350A	5	10	14	12	443	45	418	43	6543	85	582
350B	4	5.5	8	16	244	25	216	22	3757	50	333
400A	6	11	16	13	594	61	521	53	8819	106	793
400B	5	5.5	8	7	326	33	269	27	4983	67	441
450A	7	11	16	13	753	77	612	62	10820	124	979
450B	7	5.5	8	7	382	39	292	30	5837	78	517
500A	8	12	17	15	992	101	757	77	14470	154	1321
500B	5	5.5	8	7	457	47	326	33	7102	93	631
550A	8	11	17	14	1131	115	812	83	16628	165	1530
550B	5	8	12	10	781	80	541	55	11949	159	1059
600	8	11	17	14	1401	143	948	97	20042	193	1850