Marine Suction Bellmouth Black Coating

Marine Suction Bellmouth is an integral part of bilge water piping system. According to its installation location and the use of different media, marine suction can be divided into the oil tank suction and water tank suction , the two in the shape of the structure of the significant differences.

Oil tank Suction Bellmouth: used in the oil tank, mainly for the ship's main engine to provide fuel.

Water tank Suction Bellmouth: used in ballast tanks, used to regulate the ship's sailing condition and cargo weight.

Overview

Introduction:

Blackening is a surface treatment process that turns the surface of steel materials black, mainly through a chemical reaction to form a protective film of iron tetraoxide (black rust) on the surface of the substrate, thereby protecting the steel interior. This treatment process not only improves rust resistance, but also has the advantage of being less likely to flake off.

DN	Dw	Structure Size				Flange Size						Bolt		Weight
DN	Dw	D3	H	H1	ф	D	D1	D2	b	d.	f	n	Th	KG
20	25	100	110	15	4	95	68	48	13	13	1	4	M12	1.11
25	30	105	115			105	73	56	14	13		4	M12	1.34
32	38	110	120			115	83	64	15	15		6	M14	1.60
40	45	125	125		4.5	125	93	74						2.04
50	57	130	130			135	103	84						2.23
65	70	160	160	20		155	123	104	14					2.92
80	89	220	220		5	170	138	118				8		4.39
100	108	250	250			190	158	138				8		5.44
125	133	280	280	25		215	183	164				10		6.54
150	159	320	320	25		240	208	190				12		7.87
200	219	350	350	40	6	295	264	247	15			12		11.23
250	273	480	480	45	6	365	327	306	16	17		14	M16	20.49
300	325	550	550	50	8	430	386	360	19	21		14	M20	32.13