Suction Bellmouth CB/T495-1995 Type B/BS

Suction Bellmouth is used as the inlet of the oil tank, water tank in all kinds of vessels.

Design Standard: CB/T495-1995

Flange Standard: GB569, GB2501 or JIS, DIN, ANSI standard.

Type	Nominal Size(mm)	Suitable Medium
A, AS	20-300	Fresh Waer, Sea Water, Oil
B,BS	80-500
C	20-300

*When type B,BS is used on the tank, the bottom should be welded a circle of bronze.

*The suction inlet should pass the watertight test with 3minutes, and without leakage.

Body---Cast Iron (HT200)

Screw---Brass (H62)

For Type B:

DN	D3	H	H1	δ	D	D1	D2	b	d0	f	n	Th.
80	350	230	15	10	170	138	118	15	15	1	8	M14
100		250			190	158	138
125	370	260	20		215	183	164				10
150	390	270			240	208	190	16			12
200	450		30		295	264	247

DN	L	B	H	H1	δ	n1	d1	D	D1	D2	b	d0	f	n	Th.
250	740	440	350	30	12	4	M10	365	327	306	18	17	1	14	M16
300	830	490	420	35				430	386	360	19	21			M20
350	920	550	490	40			M12	480	436	410	20			16
400	1010	600	560	45				530	486	460	21
450	1100	650	630	50				580	536	512				18
500	1190	710	700					635	591	567	22			20

For Type BS:

DN	D3	H	H1	δ	D	D1	D2	b	d0	f	n	Th.
80	350	230	15	10	190	150	128	18	18	3	4	M16
100		250			210	170	148
125	370	260	20		240	200	178	20			8
150	390	270			265	225	202
200	450		30		320	280	258	22

DN	L	B	H	H1	δ	n1	d1	D	D1	D2	b	d0	f	n	Th.
250	740	440	350	30	12	4	M10	375	335	312	24	18	3	12	M16
300	830	490	420	35				440	395	365		22	4		M20
350	920	550	490	40			M12	490	445	415	26
400	1010	600	560	45				540	495	465	28			16
450	1100	650	630	50				595	550	520
500	1190	710	700					645	600	570	30			20