GB T1856 Marine Cast Iron Single Arrangement Exhaust Stop Box Valve

Materials of main parts

Body Material: Cast Iron

Disc Material: Cast Tin Bronze

Stem Material: Aluminum Bronze

Overview

Application: This GB T1856 Marine Cast Iron Single Arrangement Exhaust Stop Box Valve is designed for marine applications involving t sea water, fresh water.

Material Specification:

Parts Name	Material
	Name	Marks
Body, Cover	Cast iron	HT200
Disc	Cast tin bronze	ZCuSn5Pb5Zn5
Stem	Aluminum bronze	QA19-2
Seat	Cast aluminum bronze	ZCuAl9Mn2

Technical Specifications:

Model: GB T1856 Marine Cast Iron Single Arrangement Exhaust Stop Box Valve

Type	Nominal Pressure PN MPa	Nominal Diameter DN1/DN2 mm	Available medium
R 、RS	1.0	40~ 150	Fresh water, Sea water
S 、SS	0.6	200/250	Fresh water, Sea water

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.
		L1	L2	R	S	R	S	H	H1	B1	B2	d		D	D1	D2	b	n-d0	Bolt Th.
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
0.6	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.
		L1	L2	RS	SS	RS	SS	H	H1	B1	B2	d		D	D1	D2	b	n-d0	Bolt Th.
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
	125	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
0.6	200	325	435	1080	1520	535	970	870	246	280	70	21	14	375	335	312	24	12-18	M16