GB T1856-93 Marine Cast Iron Exhaust Stop Valve Box

GB T1856-93 Marine Cast Iron Exhaust Stop Valve Box

1. Application

GB T1856-93 Marine Cast Iron Exhaust Stop Valve Box can be used in sea water and fresh water, and it generally used to repair ships and shipbuilding or used in offshore platform.

2. Material

(1) body & cover: gray cast iron

(2) disc: cast tin bronze

(3) seat & stem: aluminum bronze

To meet the different needs of customers, the special materials can be customized according to one's request processing.
3. Nominal Pressure (MPa) & Diameter(mm)

Pressure: 1.0, 0.6

Diameter: 40~150, 200~250

4. Features

(1) Excellent quality and beautiful shape.

(2) We have IACS Certificate such as CCS, ABS, LR etc.

5. Dimensions

Type R & Type S

PN (MPa)	DN (mm)	Structure dimension											Thickness	Connection dimension of flange
		L1	L2	L3		L4		H	H1	B1	B2	d		D	D1	D2	b	n-d0	Bolt Th.
				R	S	R	S
1.0	40	110	160	380	540	210	370	283	48	95	50	13	8	125	93	74	16	6-15	M14
	50	120	180	420	600	230	410	315	58	100	50	15	8	135	103	84	16	6-15	M14
	65	130	180	440	620	230	410	345	73	120	50	15	9	155	123	104	15	6-15	M14
	80	140	200	480	680	260	460	390	89	130	60	17	9	170	138	118	15	8-15	M14
	100	170	230	570	800	290	520	430	110	150	60	17	10	190	158	138	15	8-15	M14
	125	200	250	650	900	310	560	490	135	160	60	17	10	215	183	164	15	10-15	M14
	150	230	280	740	1020	340	620	560	152	175	60	17	11	240	208	190	16	12-15	M14
0.6	200	280	380	940	1320	446	826	720	208	225	80	21	13	295	264	247	16	12-15	M14
	250	400	460	1260	1720	544	1004	870	246	270	80	21	14	365	327	306	18	14-17	M16

Type RS & Type SS

PN (MPa)	DN (mm)	Structure dimension											Thickness
		L1	L2	L3		L4		H	H1	B1	B2	d		D	D1	D2	b	n-d0	Bolt Th.
				RS	SS	RS	SS
1.0	40	115	180	410	590	230	410	283	48	105	50	13	8	150	110	88	18	4-18	M16
	50	125	195	445	640	245	440	315	58	115	50	15	8	165	125	102	20	4-18	M16
	65	145	215	505	720	265	480	345	73	135	50	15	9	185	145	122	20	4-18	M16
	80	155	230	540	770	290	520	390	89	145	60	17	9	200	160	133	22	8-18	M16
	100	175	270	620	890	330	600	430	110	165	60	17	10	220	180	158	24	8-18	M16
	125	200	290	690	980	350	640	490	135	180	60	17	10	250	210	184	26	8-18	M16
		225	325	775	1100	385	710	560	152	200	60	17	11	285	240	212	26	8-22	M20
0.6	150	275	380	930	1310	470	850	720	208	240	70	21	13	320	280	258	22	8-18	M16
	200	325	435	1080	1520	535	970	870	246	280	70	21	14	375	335	312	24	12-18	M16

6. IACS Certificate: ABS, RINA, BV, CCS, DNV, KR, LR, NK.