ISO13729 Type B Bulwark Mounted Closed Chock

Material: ZG230-450

Standard: ISO13729

Type: Bulwark-Mounted

Surface: Zinc rich primer

Availible cert.: CCS, ABS, BV, DNV, LR and other certificates.

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ISO13729 Type B Bulwark Mounted Closed Chock

Introduction:

The closed chock is a common ship device installed on the ship to guide the movement of the ropes. In the ISO 13729-2012 standard, there are two types of closed chocks: A type and B type. Type A is installed on the deck and type B is installed on the bulwark.

Drawings and Parameters of ISO13729 Type B Bulwark Mounted Closed Chock:

Form 1-1:

Nominal size *LHD*	l1	l2	H1	H2	R	R1	R2	R3	R4	R5
250×200×214	516	441	466	306	100	233	153	108	96	150
300×250×286	638	554	588	410	125	294	205	144	128	180
350×250×333	736	646	636	449	125	318	224.5	168	150	200
400×250×381	834	736	684	450	125	342	225	192	172	250
450×250×381	884	786	684	450	125	342	225	192	172	250
500×250×381	934	836	684	450	125	342	225	192	172	250
400×250×428	882	778	732	515	125	366	257.5	216	194	250
450×250×428	932	828	732	515	125	366	257.5	216	194	250
500×250×428	982	878	732	515	125	366	257.5	216	194	250
500×400×428	982	878	882	665	200	441	332.5	216	194	250
500×250×525A	1078	976	828	551	125	414	275.5	264	240	320
500×400×525A	1078	978	978	701	200	489	350.6	264	240	320
500×250×525B	1078	976	828	554	125	414	277	264	238	320
500×400×525B	1078	978	978	704	200	489	352	264	238	320

Form 1-2:

Nominal size *LHD*	R6	d1	d2	T	θ	Welding leg length		SWL		Wire Rope Diameter (recommended)	Calculated Weight (kg)
Nominal size *LHD*	R6	d1	d2	T	θ	z1	z2	KN	t	Wire Rope Diameter (recommended)	Calculated Weight (kg)
250×200×214	138	108	80	12	44°	6	5	226	23	18	49
300×250×286	164	144	100	16	44°	8	6.5	422	43	24	100
350×250×333	182	168	120	18	55°	9	7	549	56	28	141
400×250×381	230	192	120	20	47°	10	8	687	70	32	184
450×250×381	230	192	120	20	47°	10	8	706	72	32	194
500×250×381	230	192	120	20	47°	10	8	765	78	32	202
400×250×428	228	216	120	22	56°	10	9	883	90	36	264
450×250×428	228	216	120	22	56°	10	9	912	93	36	276
500×250×428	228	216	120	22	56°	10	9	932	95	36	288
500×400×428	228	216	120	22	56°	10	9	893	91	36	311
500×250×525A	296	264	120	24	53°	10	9.5	1148	117	44	379
500×400×525A	296	264	120	24	53°	10	9.5	1158	118	44	408
500×250×525B	294	264	120	26	53°	10	10.5	1413	144	44	405
500×400×525B	294	264	120	26	53°	10	10.5	1383	141	44	442